Sei Institutional Investments Trust N-CSRS Certified semi-annual shareholder report (management investment company)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSRS

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-07257

SEI Institutional Investments Trust

(Exact name of registrant as specified in charter)

SEI Investments

One Freedom Valley Drive

Oaks, PA 19456

(Address of principal executive offices) (Zip code)

Timothy D. Barto, Esq.

SEI Investments

One Freedom Valley Drive

Oaks, PA 19456

(Name and address of agent for service)

Registrant’s telephone number, including area code: 610-676-1000

Date of fiscal year end: May 31, 2021

Date of reporting period: November 30, 2020

Item 1. Reports to Stockholders.

SEI Institutional Investments Trust

›   Large Cap Fund	›   Emerging Markets Equity Fund
›   Large Cap Disciplined Equity Fund	›   Opportunistic Income Fund
›   Large Cap Index Fund	›   Core Fixed Income Fund
›   S&P 500 Index Fund	›   High Yield Bond Fund
›   Extended Market Index Fund	›   Long Duration Fund
›   Small Cap Fund	›   Long Duration Credit Fund
›   Small Cap II Fund	›   Ultra Short Duration Bond Fund
›   Small/Mid Cap Equity Fund	›   Emerging Markets Debt Fund
›   U.S. Equity Factor Allocation Fund	›   Real Return Fund
›   U.S. Managed Volatility Fund	›   Limited Duration Bond Fund
›   Global Managed Volatility Fund	›   Intermediate Duration Credit Fund
›   World Equity Ex-US Fund	›   Dynamic Asset Allocation Fund
›   Screened World Equity Ex-US Fund	›   Multi-Asset Real Return Fund
›   World Select Equity Fund

Paper copies of the Funds’ shareholder reports are no longer sent by mail, unless you specifically request them from the Funds or from your financial intermediary, such as a broker-dealer or bank. Shareholder reports are available online and you will be notified by mail each time a report is posted on the Funds’ website and provided with a link to access the report online.

You may elect to receive all future reports in paper free of charge. If you invest through a financial intermediary, you can contact your financial intermediary to inform it that you wish to continue receiving paper copies of your shareholder reports. If you invest directly with the Funds, you can inform the Funds that you wish to continue receiving paper copies of your shareholder reports by calling 1-800-DIAL-SEI. Your election to receive reports in paper will apply to all funds held with the SEI Funds or your financial intermediary.

TABLE OF CONTENTS

Summary Schedules of Investments/Schedules of Investments/Consolidated Summary Schedule of Investments/Consolidated Schedule of Investments	1
Statements of Assets and Liabilities/Consolidated Statements of Assets and Liabilities	322
Statements of Operations/Consolidated Statements of Operations	328
Statements of Changes in Net Assets/Consolidated Statements of Changes in Net Assets	334
Consolidated Statement of Cash Flows	342
Financial Highlights/Consolidated Financial Highlights	343
Notes to Financial Statements/Consolidated Notes to Financial Statements	348
Disclosure of Fund Expenses	387
Board of Trustees Considerations in Approving the Advisory and Sub-Advisory Agreements	389

The Trust files its complete schedule of portfolio holdings with the Securities and Exchange Commission for the first and third quarter of each fiscal year on Form N-PORT. The Trust’s Forms N-PORT are available on the Commission’s website at http://www.sec.gov.

A description of the policies and procedures that the Trust uses to determine how to vote proxies relating to portfolio securities, as well as information relating to how a Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30, is available (i) without charge, upon request, by calling 1-800-DIAL-SEI; and (ii) on the Commission’s website at http://www.sec.gov.

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Large Cap Fund

^†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK — 98.4%
Communication Services — 7.1%
Alphabet Inc, Cl A *		0.5	%		2,676	$	4,695
Alphabet Inc, Cl C *		1.3			7,828		13,783
AT&T Inc		0.7			257,690		7,409
Comcast Corp, Cl A		0.7			143,672		7,218
Facebook Inc, Cl A *		1.3			49,808		13,795
Verizon Communications Inc		0.8			131,799		7,962
Other Securities (A)		1.8					18,781
							73,643
Consumer Discretionary — 12.4%
Amazon.com Inc*		2.7			8,870		28,101
Lowe’s Cos Inc		0.9			61,674		9,610
NIKE Inc, Cl B		0.7			52,767		7,108
Ross Stores Inc		0.6			56,398		6,064
Target Corp		1.1			62,218		11,170
Other Securities (A)		6.4					67,137
							129,190
Consumer Staples — 8.2%
Kroger Co/The		0.8			246,130		8,122
Philip Morris International Inc		0.9			123,785		9,377
Unilever PLC ADR		1.2			204,931		12,513
Other Securities		5.3					55,642
							85,654
Energy — 2.2%
Chevron Corp		0.8			93,948		8,190
Other Securities (B)		1.4					14,657
							22,847
Financials — 14.9%
Bank of America Corp		0.9			325,400		9,163
Berkshire Hathaway Inc, Cl B *		1.0			46,470		10,637
Chubb Ltd		0.6			40,761		6,026
Citigroup Inc		0.8			145,000		7,985
First Republic Bank/CA		0.7			54,668		7,083
JPMorgan Chase & Co		1.1			92,685		10,926
Markel Corp *		0.6			6,307		6,142
Morgan Stanley		1.0			166,512		10,295

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
State Street Corp		0.6	%		90,286	$	6,363
US Bancorp		0.7			173,814		7,511
Other Securities ‡(B)		6.9					72,378
							154,509
Health Care — 14.5%
Amgen Inc		0.7			33,880		7,523
CVS Health Corp		0.9			140,113		9,498
Johnson & Johnson		1.8			128,854		18,643
Medtronic PLC		0.9			82,267		9,354
Merck & Co Inc		1.2			151,048		12,143
Pfizer Inc		1.0			285,445		10,935
Teleflex Inc		0.6			16,063		6,148
UnitedHealth Group Inc		1.0			31,543		10,609
Other Securities (A)		6.4					65,427
							150,280
Industrials — 9.0%
3M Co		0.6			35,550		6,141
Honeywell International Inc		0.7			35,725		7,285
Johnson Controls International PLC		0.6			130,036		5,987
Other Securities (A)		7.1					73,400
							92,813
Information Technology — 21.8%
Adobe Inc*		1.4			31,084		14,873
Apple Inc		2.9			254,104		30,251
Applied Materials Inc		0.8			93,378		7,702
Cisco Systems Inc		0.6			149,124		6,415
Intel Corp		1.0			210,006		10,154
Intuit Inc		1.0			29,284		10,309
Microchip Technology Inc		1.2			93,473		12,562
Microsoft Corp		2.7			133,106		28,494
PayPal Holdings Inc*		0.6			28,846		6,176
salesforce.com*		1.1			44,301		10,889
Visa Inc, Cl A		1.3			62,556		13,159
Other Securities		7.2					74,545
							225,529
Materials — 4.0%
Other Securities		4.0					41,296
Real Estate — 2.3%
American Tower Corp, Cl A ‡		0.6			29,404		6,798
Other Securities ‡		1.7					16,886
							23,684
Utilities — 2.0%
NextEra Energy Inc		0.6			87,800		6,461
Other Securities		1.4					14,049
							20,510
Total Common Stock
(Cost $767,761) ($ Thousands)							1,019,955

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   1

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Large Cap Fund (Concluded)

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
AFFILIATED PARTNERSHIP — 0.7%
SEI Liquidity Fund, L.P. 0.070% **† (C)		0.7	%		7,164,678	$	7,168
Total Affiliated Partnership
(Cost $7,165) ($ Thousands)							7,168

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
CASH EQUIVALENT — 1.1%
SEI Daily Income Trust, Government Fund, Cl F     0.010% **†		1.1	%		11,056,298	$	11,056
Total Cash Equivalent
(Cost $11,056) ($ Thousands)							11,056
Total Investments in Securities — 100.2%
(Cost $785,982) ($ Thousands)						$	1,038,179

A list of the open futures contracts held by the Fund at November 30, 2020, is as follows:

Type of Contract	Number of Contracts Long/(Short)		Expiration Date		Notional Amount (Thousands)		Value (Thousands)		Unrealized Appreciation (Depreciation) (Thousands)
S&P 500 Index E-MINI		25		Dec-2020	$	4,544	$	4,529	$	(15)
S&P Mid Cap 400 Index E-MINI		2		Dec-2020		443		434		(9)
					$	4,987	$	4,963	$	(24)

Percentages are based on Net Assets of $1,035,884 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

^†  Investment in Affiliated Security (See Note 6).

^‡  Real Estate Investment Trust.

(A) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (See Note 12). The total market value of securities on loan at November 30, 2020, was $6,912 ($ Thousands).

(B) Security is a Master Limited Partnership. At November 30, 2020, such securities amounted to $317 ($ Thousands), or 0.0% of Net Assets of the Fund (See Note 2).

(C) This security was purchased with cash collateral held from securities on loan (See Note 12). The total market value of such securities as of November 30, 2020 was $7,168 ($ Thousands).

ADR — American Depositary Receipt

Cl — Class

L.P. — Limited Partnership

Ltd. — Limited

PLC — Public Limited Company

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete

schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)			Level 2 ($)		Level 3 ($)		Total ($)
Common Stock		1,019,955			–		–		1,019,955
Affiliated Partnership		–			7,168		–		7,168
Cash Equivalent		11,056			–		–		11,056
Total Investments in Securities		1,031,011			7,168		–		1,038,179
Other Financial Instruments	Level 1 ($)			Level 2 ($)		Level 3 ($)		Total ($)
Futures Contracts*
Unrealized Depreciation		(24	)		–		–		(24	)
Total Other Financial Instruments		(24	)		–		–		(24	)

*Futures contracts are valued at the unrealized depreciation on the instrument.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

  2   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020		Purchases at Cost		Proceeds from Sales		Realized Gain/ (Loss)		Change in Unrealized Appreciation/ (Depreciation)		Value 11/30/2020		Shares		Income		Capital Gains
SEI Liquidity Fund, L.P.		$ 28,649		$ 69,284		$ (90,760)		$ 3		$ (8)		$ 7,168		7,164,678		$ 74		$ —
SEI Daily Income Trust, Government Fund, Cl F		12,188		164,034		(165,166)		—		—		11,056		11,056,298		1		—
Totals		$ 40,837		$ 233,318		$ (255,926)		$ 3		$ (8)		$ 18,224				$ 75		$ —

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   3

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Large Cap Disciplined Equity Fund

^†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK — 90.9%
Communication Services — 6.9%
Alphabet Inc, Cl A *		1.3%		10,774	$	18,902
Alphabet Inc, Cl C *		0.4		3,761		6,622
Facebook Inc, Cl A *		1.9		106,421		29,476
Verizon Communications Inc		1.1		273,583		16,527
Other Securities		2.2				32,638
						104,165
Consumer Discretionary — 8.7%
Amazon.com Inc*		2.3		10,800		34,215
BorgWarner Inc (A)		0.5		201,607		7,832
Home Depot Inc/The		0.6		35,078		9,731
Lowe’s Cos Inc		0.7		68,176		10,623
Target Corp		0.7		55,833		10,024
Other Securities (A)		3.9				58,965
						131,390
Consumer Staples — 7.7%
Altria Group Inc		0.6		217,962		8,681
Coca-Cola Co/The		0.6		180,768		9,328
Kroger Co/The		0.5		240,882		7,949
Procter & Gamble Co/The		1.2		132,918		18,458
Sysco Corp		0.6		137,455		9,799
Walmart Inc		0.6		57,500		8,785
Other Securities		3.7				54,207
						117,207
Energy — 1.6%
Other Securities (B)		1.6				23,958
Financials — 10.8%
Aflac Inc		0.5		171,329		7,526
Bank of America Corp		1.3		677,110		19,067
Berkshire Hathaway Inc, Cl B *		0.6		37,711		8,632
Capital One Financial Corp		0.9		155,984		13,358
Citigroup Inc		0.6		159,000		8,756
JPMorgan Chase & Co		0.9		112,569		13,270

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Willis Towers Watson PLC		0.6%		42,601	$	8,869
Other Securities ‡		5.4				84,996
						164,474
Health Care — 14.4%
Abbott Laboratories		0.5		69,600		7,532
Amgen Inc		0.6		41,264		9,162
Becton Dickinson and Co		1.0		66,180		15,542
CVS Health Corp		0.7		148,365		10,058
Humana Inc		0.7		25,234		10,107
Johnson & Johnson		1.3		131,429		19,015
Medtronic PLC		0.8		113,190		12,870
Merck & Co Inc		1.3		246,040		19,779
Pfizer Inc		0.6		228,900		8,769
Thermo Fisher Scientific Inc		0.5		16,200		7,533
UnitedHealth Group Inc		1.5		66,058		22,218
Zimmer Biomet Holdings Inc		0.5		55,315		8,249
Other Securities		4.4				66,787
						217,621
Industrials — 10.6%
AMETEK Inc		0.6		71,662		8,494
Emerson Electric Co		0.5		102,323		7,860
Honeywell International Inc		0.7		54,070		11,026
Raytheon Technologies Corp		0.8		168,513		12,086
Stanley Black & Decker Inc		0.8		64,883		11,959
Other Securities		7.2				109,782
						161,207
Information Technology — 22.0%
Adobe Inc*		0.7		21,553		10,312
Apple Inc		4.7		598,443		71,245
Broadcom Inc		0.6		24,390		9,795
Cisco Systems Inc		0.6		197,982		8,517
Global Payments Inc		0.8		59,800		11,672
Microsoft Corp		4.6		321,796		68,887
Motorola Solutions Inc		0.5		44,077		7,561
NVIDIA Corp		0.6		15,958		8,554
QUALCOMM Inc		1.0		106,812		15,719
Other Securities		7.9				121,590
						333,852
Materials — 3.1%
Air Products and Chemicals Inc		0.6		33,969		9,516
Other Securities		2.5				37,716
						47,232
Real Estate — 2.3%
Crown Castle International
Corp‡		0.8		69,103		11,580
Other Securities ‡		1.5				23,004
						34,584

  4   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Utilities — 2.8%
NextEra Energy Inc		0.6%		118,061	$	8,688
Other Securities		2.2				33,529
						42,217
Total Common Stock
(Cost $1,040,781) ($ Thousands)						1,377,907
U.S. TREASURY OBLIGATION — 0.0%
Other Securities		0.0				120
Total U.S. Treasury Obligation
(Cost $120) ($ Thousands)						120

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
AFFILIATED PARTNERSHIP — 0.0%
SEI Liquidity Fund, L.P. 0.070% **†(C)		0.0%		49,583	$	48
Total Affiliated Partnership
(Cost $49) ($ Thousands)						48
CASH EQUIVALENT — 5.6%
SEI Daily Income Trust, Government Fund, Cl F     0.010% **†		5.6		84,155,071		84,155
Total Cash Equivalent
(Cost $84,155) ($ Thousands)						84,155
Total Investments in Securities — 96.5%
(Cost $1,125,105) ($ Thousands)					$	1,462,230

A list of the open futures contracts held by the Fund at November 30, 2020, is as follows:

Type of Contract	Number of Contracts Long		Expiration Date		Notional Amount (Thousands)		Value (Thousands)		Unrealized Appreciation (Thousands)
S&P 500 Index E-MINI		264		Dec-2020	$	44,984	$	47,826	$	2,842

A list of the open OTC Swap agreement held by the Fund at November 30, 2020, is as follows:

Total Return Swaps

Counterparty

Reference Entity/ Obligation

Fund Pays

Fund Receives

Payment Frequency

Termination Date

Currency

Notional Amount (Thousands)

Value (Thousands)

Net Unrealized (Depreciation) (Thousands)

BAML

United States Custom Basket of Securities

1 Month + 0.15%

Asset Return

Monthly

02/28/2022

USD

$

74,541

$

(975)

$

(975)

The following table represents the individual stock exposures comprising the Net Long Custom Basket Total Return Swaps as of November 30, 2020:

United States Custom Basket of Long Securities

Shares		Description	Currency	Notional Amount (Thousands)		Net Unrealized Appreciation (Depreciation) (Thousands)		Fair Value (Thousands)		Percentage Value of Underlying Investment
	21,700	AGCO CORP	USD	$	2,095	$	(84)	$	(84)		(21.59	)%
	1,186	ALIGN TECHNOLOGY INC	USD		542		28		28		7.20
	13,700	ALEXION PHARM	USD		1,751		(78)		(78)		(20.05)
	4,000	AMEDISYS INC	USD		978		1		1		0.26
	16,300	AMERICAN HOMES 4 RENT- A	USD		484		(16)		(16)		(4.11)
	16,300	AMERIPRISE FINANCIAL INC	USD		3,031		4		4		1.03
	5,178	AMAZON.COM INC	USD		16,213		188		188		48.33
	4,416	BIO-RAD LABORATORIES-A	USD		2,637		(260)		(260)		(66.84)
	57,700	BJ’S WHOLESALE C	USD		2,425		(61)		(61)		(15.68)
	1,133	BOOKING HOLDINGS INC	USD		2,390		(92)		(92)		(23.65)
	—	BLUEPRINT MEDICINES CORP	USD		—		3		3		0.77

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   5

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Large Cap Disciplined Equity Fund (Continued)

Shares		Description	Currency	Notional Amount (Thousands)		Net Unrealized Appreciation (Depreciation) (Thousands)		Fair Value (Thousands)		Percentage Value of Underlying Investment
	4,619	BERKSHIRE HATH-B	USD	$	1,077	$	(20)	$	(20)		(5.14	)%
	72,700	CONAGRA BRANDS INC	USD		2,656		21		21		5.40
	19,700	CBRE GROUP INC—A	USD		1,180		24		24		6.17
	24,600	CHURCH & DWIGHT CO INC	USD		2,164		1		1		0.26
	5,973	CHARTER COMMUN-A	USD		3,831		62		62		15.94
	122,100	CENTERPOINT ENERGY INC	USD		3,063		(214)		(214)		(55.01)
	11,500	CITRIX SYSTEMS INC	USD		1,363		62		62		15.94
	10,100	CUBESMART	USD		330		(2)		(2)		(0.51)
	17,600	DROPBOX INC-CLASS A	USD		329		22		22		5.66
	—	DISH NETWORK CORP-A	USD		—		(16)		(16)		(4.11)
	7,700	DOLBY LABORATO-A	USD		685		(2)		(2)		(0.51)
	384	DOMINO’S PIZZA INC	USD		148		3		3		0.77
	21,400	ELECTRONIC ARTS INC	USD		2,538		195		195		50.13
	18,500	EURONET WORLDWIDE INC	USD		2,371		125		125		32.13
	87,900	EQUITABLE HOLDINGS INC	USD		2,161		84		84		21.59
	32,800	EXELIXIS INC	USD		642		(14)		(14)		(3.60)
	13,500	DIAMONDBACK ENERGY INC	USD		543		(4)		(4)		(1.03)
	—	FIRSTENERGY CORP	USD		—		5		5		1.29
	1,658	FAIR ISAAC CORP	USD		785		(1)		(1)		(0.26)
	21,000	FORTINET INC	USD		2,451		136		136		34.96
	10,500	GILEAD SCIENCES INC	USD		641		(5)		(5)		(1.29)
	35,600	GAMING AND LEISU	USD		1,486		9		9		2.31
	6,077	ALPHABET INC-CL A	USD		10,781		(122)		(122)		(31.36)
	160,900	HUNTINGTON BANCSHARES INC	USD		1,936		8		8		2.06
	—	HD SUPPLY HOLDINGS INC	USD		—		—		—		—
	17,800	HOLLYFRONTIER CORP	USD		430		(8)		(8)		(2.06)
	16,500	HARTFORD FINL SV	USD		765		(30)		(30)		(7.71)
	6,307	HUMANA INC	USD		2,703		(177)		(177)		(45.50)
	19,700	HOWMET AEROSPACE INC	USD		457		5		5		1.29
	1,007	ILLUMINA INC	USD		299		25		25		6.43
	36,300	KNIGHT-SWIFT TRA	USD		1,515		(17)		(17)		(4.37)
	2,900	COCA-COLA CO/THE	USD		156		(5)		(5)		(1.29)
	74,500	KROGER CO	USD		2,406		65		65		16.71
	6,500	LITHIA MOTORS INC-CL A	USD		1,729		153		153		39.33
	19,500	LAMAR ADVERTISING CO-A	USD		1,500		52		52		13.37
	116,500	LIBERTY GLOBAL PLC- C	USD		2,546		(25)		(25)		(6.43)
	2,000	LHC GROUP INC	USD		421		(29)		(29)		(7.46)
	29,800	LKQ CORP	USD		1,097		(47)		(47)		(12.08)
	6,100	LOWE’S COS INC	USD		988		(37)		(37)		(9.51)
	—	LATTICE SEMICOND	USD		—		5		5		1.29
	42,300	MASCO CORP	USD		2,339		(69)		(69)		(17.74)
	17,800	MCKESSON CORP	USD		3,269		(60)		(60)		(15.42)
	26,400	MARSH & MCLENNAN COS	USD		3,053		(28)		(28)		(7.20)
	95,900	MOSAIC CO/THE	USD		1,801		305		305		78.41
	400	MONOLITHIC POWER	USD		121		7		7		1.80
	52,997	NEXTERA ENERGY INC	USD		4,121		(203)		(203)		(52.19)
	17,700	NEXTERA ENERGY PARTNERS LP	USD		1,149		(26)		(26)		(6.68)
	12,300	NIKE INC -CL B	USD		1,600		56		56		14.40
	91,800	NOV INC	USD		1,105		20		20		5.14
	—	NOVAVAX INC	USD		—		(13)		(13)		(3.34)
	68,700	NEWS CORP—CLASS A	USD		1,195		18		18		4.63
	67,000	NY COMM BANCORP	USD		604		57		57		14.65
	2,400	OKTA INC	USD		535		53		53		13.62
	4,200	PALO ALTO NETWORKS INC	USD		1,170		65		65		16.71
	6,300	PERFORMANCE FOOD GROUP CO	USD		275		(2)		(2)		(0.51)
	19,300	PULTEGROUP INC	USD		827		14		14		3.60
	20,200	PERKINELMER INC	USD		2,693		(7)		(7)		(1.80)

  6   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Shares		Description	Currency	Notional Amount (Thousands)		Net Unrealized Appreciation (Depreciation) (Thousands)		Fair Value (Thousands)		Percentage Value of Underlying Investment
	-	PLUG POWER INC	USD	$	-	$	43	$	43		11.05	%
	4,821	POOL CORP	USD		1,643		16		16		4.11
	-	PLURALSIGHT INC - A	USD		-		35		35		9.00
	28,500	QUANTA SERVICES INC	USD		1,976		(29)		(29)		(7.46)
	1,300	PAYPAL HOLDINGS INC	USD		250		29		29		7.46
	2,945	REGENERON PHARMACEUTICALS	USD		1,647		(128)		(128)		(32.90)
	-	RH	USD		-		35		35		9.00
	16,000	RELIANCE STEEL & ALUMINUM	USD		1,933		(39)		(39)		(10.03)
	1,616	SBA COMMUNICATIONS CORP	USD		477		(13)		(13)		(3.34)
	6,600	SITEONE LANDSCAP	USD		893		28		28		7.20
	27,000	SCHNEIDER NATL-B	USD		594		24		24		6.17
	14,400	SYNNEX CORP	USD		2,268		40		40		10.28
	-	SOUTH STATE CORP	USD		-		(1)		(1)		(0.26)
	2,090	THERMO FISHER	USD		1,005		(34)		(34)		(8.74)
	1,200	T ROWE PRICE GROUP INC	USD		173		(1)		(1)		(0.26)
	8,500	UNIVERSAL HLTH-B	USD		1,130		(20)		(20)		(5.14)
	1,000	UNITED PARCEL-B	USD		168		4		4		1.03
	1,200	UNITED RENTALS INC	USD		261		19		19		4.88
	5,400	MARRIOTT VACATIONS WORLD	USD		704		(16)		(16)		(4.11)
	109,200	WELLS FARGO & CO	USD		2,719		276		276		70.95
	15,800	WP CAREY INC	USD		1,134		(40)		(40)		(10.28)
	49,500	WEYERHAEUSER CO	USD		1,453		(16)		(16)		(4.11)
	3,300	XPO LOGISTICS INC	USD		351		1		1		0.26
	14,300	XEROX HOLDINGS CORP	USD		325		(12)		(12)		(3.10)
	6,900	ZENDESK INC	USD		845		81		81		20.79
				$	140,525	$	389	$	389		100.00	%

The following table represents the individual stock exposures comprising the Net Short Custom Basket Total Return Swaps as of November 30, 2020:

United States Custom Basket of Short Securities

Shares		Description	Currency	Notional Amount (Thousands)		Net Unrealized Appreciation (Depreciation) (Thousands)		Fair Value (Thousands)		Percentage Value of Underlying Investment
	(74,300)	AMERICAN AIRLINE	USD	$	(954)	$	(96)	$	(96)		7.04	%
	(22,300)	ADAPTIVE BIOTECHNOLOGIES	USD		(1,041)		(34)		(34)		2.49
	(91,800)	ADT INC	USD		(695)		(44)		(44)		3.23
	(20,100)	AEROJET ROCKETDY	USD		(747)		(6)		(6)		0.44
	(14,200)	ALLOGENE THERAPEUTICS INC	USD		(469)		28		28		-2.05
	(3,200)	ALLAKOS INC	USD		(320)		(22)		(22)		1.61
	(10,500)	APELLIS PHARMACE	USD		(496)		1		1		-0.07
	(11,500)	ARROWHEAD PHARMA	USD		(794)		75		75		-5.50
	(9,200)	ATMOS ENERGY CORP	USD		(932)		44		44		-3.23
	(10,500)	AMERICAN STATES WATER CO	USD		(831)		52		52		-3.81
	(10,300)	BRIDGEBIO PHARMA INC	USD		(457)		(61)		(61)		4.47
	(1,200)	BRIGHT HORIZONS FAMILY SOLUT	USD		(204)		-		-		0.00
	(5,900)	BIOHAVEN PHARMAC	USD		(568)		43		43		-3.15
	(11,300)	BILL.COM HOLDINGS INC	USD		(1,090)		(297)		(297)		21.77
	(19,500)	BLACKBAUD INC	USD		(1,020)		(55)		(55)		4.03
	(11,300)	BLUEBIRD BIO INC	USD		(524)		26		26		-1.91
	(13,800)	BANK OF HAWAII CORP	USD		(1,039)		(4)		(4)		0.29
	(12,900)	BOK FINANCIAL CORPORATION	USD		(912)		41		41		-3.01
	(25,400)	BLACKSTONE MOR-A	USD		(660)		-		-		0.00
	(13,700)	COMMUNITY BANK SYSTEM INC	USD		(909)		56		56		-4.11
	(12,100)	CHEGG INC	USD		(822)		(121)		(121)		8.87
	(44,000)	CLEVELAND-CLIFFS INC	USD		(466)		(19)		(19)		1.39
	(9,700)	DECIPHERA PHARMA	USD		(642)		42		42		-3.08

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   7

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Large Cap Disciplined Equity Fund (Continued)

Shares		Description	Currency	Notional Amount (Thousands)		Net Unrealized Appreciation (Depreciation) (Thousands)		Fair Value (Thousands)			Percentage Value of Underlying Investment
	(5,000)	DENALI THERAPEUTICS INC	USD	$	(320)	$	16	$	16			-1.17	%
	(2,400)	EDISON INTERNATIONAL	USD		(156)		9		9			-0.66
	(19,100)	EQUITY COMMONWEALTH	USD		(515)		8		8			-0.59
	(2,000)	ELASTIC NV	USD		(203)		(44)		(44)			3.23
	(13,400)	FATE THERAPEUTICS INC	USD		(708)		(76)		(76)			5.57
	(50,800)	FIRST HAWAIIAN INC	USD		(1,135)		9		9			-0.66
	(14,100)	FOX FACTORY HOLDING CORP	USD		(1,156)		(75)		(75)			5.50
	(8,100)	FASTLY INC - CLASS A	USD		(639)		(48)		(48)			3.52
	(11,500)	GATX CORP	USD		(940)		22		22			-1.61
	(20,100)	GLACIER BANCORP INC	USD		(887)		67		67			-4.91
	(1,669)	GRAHAM HOLDING-B	USD		(754)		7		7			-0.51
	(6,500)	GOOSEHEAD INSU-A	USD		(807)		7		7			-0.51
	(14,400)	HOWARD HUGHES CORP/THE	USD		(1,026)		(21)		(21)			1.54
	(41,300)	HOME BANCSHARES INC	USD		(815)		45		45			-3.30
	(88,800)	H&R BLOCK INC	USD		(1,565)		(105)		(105)			7.70
	(2,300)	IDACORP INC	USD		(217)		9		9			-0.66
	(6,000)	IMMUNOVANT INC	USD		(316)		21		21			-1.54
	(18,300)	INSMED INC	USD		(671)		(43)		(43)			3.15
	(3,400)	INSPIRE MEDICAL	USD		(591)		(40)		(40)			2.93
	(73,700)	JETBLUE AIRWAYS CORP	USD		(1,090)		(22)		(22)			1.61
	(4,500)	KINSALE CAPITAL GROUP INC	USD		(1,006)		(75)		(75)			5.50
	(4,100)	QUAKER CHEMICAL CORP	USD		(1,060)		47		47			-3.45
	(10,800)	OPEN LENDING CORP - CL A	USD		(325)		21		21			-1.54
	(170,800)	Lumen Technologies	USD		(1,720)		(108)		(108)			7.92
	(21,800)	LIVE NATION ENTE	USD		(1,489)		58		58			-4.25
	(8,600)	MERCURY SYSTEMS INC	USD		(591)		(22)		(22)			1.61
	(700)	MIRATI THERAPEUTICS INC	USD		(160)		(6)		(6)			0.44
	(4,600)	NEW FORTRESS ENERGY INC	USD		(172)		(27)		(27)			1.98
	(28,500)	NEW JERSEY RESOURCES CORP	USD		(1,066)		125		125			-9.16
	(8,500)	NIKOLA CORP	USD		(186)		12		12			-0.88
	(88,900)	NEW RESIDENT	USD		(767)		(56)		(56)			4.11
	(8,200)	NUTANIX INC - A	USD		(219)		(6)		(6)			0.44
	(10,800)	ONEOK INC	USD		(349)		(38)		(38)			2.79
	(8,600)	1LIFE HEALTHCARE INC	USD		(282)		-		-			0.00
	(2,200)	ORMAT TECHNOLOGIES INC	USD		(180)		6		6			-0.44
	(41,100)	OWL ROCK CAPITAL CORP	USD		(559)		3		3			-0.22
	(152,200)	P G & E CORP	USD		(1,756)		(177)		(177)			12.98
	(8,700)	PENNYMAC FINANCI	USD		(495)		(7)		(7)			0.51
	(84,000)	PARK HOTELS & RESORTS INC	USD		(1,216)		(155)		(155)			11.36
	(19,500)	PINNACLE FINL	USD		(1,081)		22		22			-1.61
	(8,100)	REATA PHARMACE-A	USD		(1,380)		143		143			-10.48
	(5,400)	ROYAL GOLD INC	USD		(617)		20		20			-1.47
	(9,300)	ROCKET COS INC-CLASS A	USD		(211)		18		18			-1.32
	(4,700)	ROKU INC	USD		(1,094)		(286)		(286)			20.97
	(33,484)	ROOT INC/OH -CLASS A	USD		(573)		(20)		(20)			1.47
	(55,300)	SABRE CORP	USD		(544)		(79)		(79)			5.79
	(9,500)	SAGE THERAPEUTICS INC	USD		(698)		(6)		(6)			0.44
	(113)	SEABOARD CORP	USD		(361)		(1)		(1)			0.07
	(5,100)	SVB FINANCIAL GROUP	USD		(1,809)		50		50			-3.67
	(1,300)	SNOWFLAKE INC-CLASS A	USD		(314)		(109)		(109)			7.99
	(25,700)	SPIRIT AEROSYS-A	USD		(832)		(42)		(42)			3.08
	(42,200)	SUNPOWER CORP	USD		(833)		(103)		(103)			7.55
	(16,600)	SPIRE INC	USD		(1,058)		(3)		(3)	��		0.22
	(3,500)	STAMPS.COM INC	USD		(633)		(23)		(23)			1.69
	(2,200)	SPRINGWORKS THER	USD		(152)		8		8			-0.59
	(13,800)	SOUTHWEST GAS HO	USD		(972)		77		77			-5.65

  8   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Shares		Description	Currency	Notional Amount (Thousands)		Net Unrealized Appreciation (Depreciation) (Thousands)		Fair Value (Thousands)		Percentage Value of Underlying Investment
	(4,100)	TEXAS CAPITAL BA	USD	$	(233)	$	4	$	4		-0.29	%
	(6,300)	TCF FINANCIAL CORP	USD		(212)		(2)		(2)		0.15
	(4,200)	THOR INDUSTRIES INC	USD		(373)		(32)		(32)		2.35
	(9,200)	TAYLOR MORRISON HOME CORP	USD		(228)		(5)		(5)		0.37
	(10,200)	TOOTSIE ROLL INDS	USD		(331)		15		15		-1.10
	(3,400)	TRUPANION INC	USD		(306)		(38)		(38)		2.79
	(1,800)	TWIST BIOSCIENCE CORP	USD		(188)		(14)		(14)		1.03
	(3,568)	UNITED AIRLINES	USD		(146)		(41)		(41)		3.01
	(75,000)	UMPQUA HOLDINGS CORP	USD		(1,091)		34		34		-2.49
	(7,400)	VIR BIOTECHNOLOGY INC	USD		(198)		(38)		(38)		2.79
	(20,300)	VORNADO REALTY TRUST	USD		(811)		10		10		-0.73
	(3,900)	VROOM INC	USD		(131)		(9)		(9)		0.66
	(12,600)	VERTIV HOLDINGS CO	USD		(230)		(6)		(6)		0.44
	(11,600)	VIASAT INC	USD		(425)		31		31		-2.27
	(78,200)	Vistra Corp.	USD		(1,548)		87		87		-6.38
	(15,200)	VIVINT SMART HOME INC	USD		(310)		(25)		(25)		1.82
	(29,700)	ESSENTIAL UTILITIES INC	USD		(1,360)		9		9		-0.67
				$	(65,984)	$	(1,364)	$	(1,364)		100.00	%

Percentages are based on a Net Assets of $1,515,192 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

^‡  Real Estate Investment Trust.

^†  Investment in Affiliated Security (see Note 6).

(A) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (see Note 12). The total market value of securities on loan at November 30, 2020, was $83 ($ Thousands).

(B) Security is a Master Limited Partnership. At November 30, 2020, such securities amounted to $247 ($ Thousands), or 0.0% of Net Assets (see Note 2).

(C) This security was purchased with cash collateral held from securities on loan (see Note 12). The total market value of such securities as of November 30, 2020 was $48 ($ Thousands).

Cl — Class

L.P. — Limited Partnership

PLC — Public Limited Company

S&P— Standard & Poor’s

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total ($)
Common Stock		1,377,907		–		–		1,377,907
U.S. Treasury Obligation		–		120		–		120
Affiliated Partnership		–		48		–		48
Cash Equivalent		84,155		–		–		84,155
Total Investments in Securities		1,462,062		168		–		1,462,230

Other Financial Instruments	Level 1 ($)		Level 2 ($)			Level 3 ($)		Total ($)
Futures Contracts*
Unrealized Appreciation		2,842		–			–		2,842
Total Return Swaps*
Unrealized Depreciation		–		(975	)		–		(975)
Total Other Financial Instruments		2,842		(975	)		–		1,867

* Futures and swap contracts are valued at the unrealized appreciation (depreciation) on the instrument.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   9

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Large Cap Disciplined Equity Fund (Concluded)

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Liquidity Fund, L.P.	$ 22,577	$ 60,460	$ (82,985)	$ 1	$ (5)	$ 48	49,583	$ 7	$ —
SEI Daily Income Trust, Government Fund, Cl F	37,160	326,427	(279,432)	—	—	84,155	84,155,071	4	—
Totals	$ 59,737	$ 386,887	$ (362,417)	$ 1	$ (5)	$ 84,203		$ 11	$ —

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  10   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Large Cap Index Fund

^†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK — 99.3%
Communication Services — 10.3%
Alphabet Inc, Cl A *		1.5%		18,129	$	31,805
Alphabet Inc, Cl C *		1.5		17,899		31,515
AT&T Inc		0.6		425,785		12,241
Comcast Corp, Cl A		0.7		273,150		13,723
Facebook Inc, Cl A *		1.9		144,900		40,133
Netflix Inc*		0.6		25,700		12,611
Verizon Communications Inc		0.7		250,676		15,143
Walt Disney Co/The		0.8		108,950		16,126
Other Securities (A)		2.0				40,626
						213,923
Consumer Discretionary — 12.2%
Amazon.com Inc*		3.9		25,489		80,750
Home Depot Inc/The		0.9		65,015		18,036
McDonald’s Corp		0.5		45,280		9,846
NIKE Inc, Cl B		0.5		73,568		9,910
Tesla Inc*		1.2		44,685		25,363
Other Securities (A)		5.2				107,878
						251,783
Consumer Staples — 6.2%
Coca-Cola Co/The		0.6		230,740		11,906
Costco Wholesale Corp		0.5		26,581		10,414
PepsiCo Inc		0.6		82,852		11,950
Procter & Gamble Co/The		1.0		147,254		20,449
Walmart Inc		0.6		83,179		12,709
Other Securities (A)		2.9				59,888
						127,316
Energy — 2.1%
Chevron Corp		0.5		115,498		10,069
Exxon Mobil Corp		0.5		255,138		9,729
Other Securities		1.1				23,970
						43,768
Financials — 10.3%
Bank of America Corp		0.6		462,063		13,012
Berkshire Hathaway Inc, Cl B *		1.3		115,600		26,462
JPMorgan Chase & Co		1.1		182,934		21,564

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
SEI Investments Co †		0.0%		6,742	$	356
Other Securities ‡(A)(B)		7.3				150,473
						211,867
Health Care — 13.5%
Abbott Laboratories		0.6		105,137		11,378
AbbVie Inc		0.5		106,301		11,117
Bristol-Myers Squibb Co		0.4		136,419		8,513
Danaher Corp		0.4		38,102		8,559
Johnson & Johnson		1.1		159,009		23,005
Medtronic PLC		0.5		80,826		9,190
Merck & Co Inc		0.6		150,843		12,126
Pfizer Inc		0.6		331,922		12,716
Thermo Fisher Scientific Inc		0.5		23,525		10,939
UnitedHealth Group Inc		0.9		57,020		19,178
Other Securities (A)		7.4				152,488
						279,209
Industrials — 9.0%
Honeywell International Inc		0.4		42,190		8,603
Union Pacific Corp		0.4		40,932		8,353
Other Securities (A)		8.2				169,258
						186,214
Information Technology — 27.3%
Accenture PLC, Cl A		0.5		38,400		9,565
Adobe Inc*		0.7		28,702		13,733
Apple Inc		5.6		970,700		115,562
Broadcom Inc		0.5		23,532		9,450
Cisco Systems Inc		0.5		256,327		11,027
Intel Corp		0.6		252,958		12,231
Mastercard Inc, Cl A		0.9		53,400		17,970
Microsoft Corp		4.7		450,300		96,396
NVIDIA Corp		0.9		35,656		19,114
PayPal Holdings Inc*		0.7		70,211		15,034
QUALCOMM Inc		0.5		67,759		9,972
salesforce.com Inc*		0.6		52,184		12,827
Texas Instruments Inc		0.4		55,308		8,918
Visa Inc, Cl A		1.0		102,000		21,456
Other Securities (A)		9.2				191,313
						564,568
Materials — 2.7%
Linde PLC		0.4		31,625		8,109
Other Securities (A)		2.3				48,457
						56,566
Real Estate — 3.0%
Other Securities ‡(A)		3.0				61,859
Utilities — 2.7%
NextEra Energy Inc		0.4		118,692		8,735
Other Securities		2.3				47,838
						56,573
Total Common Stock
(Cost $664,160) ($ Thousands)						2,053,646

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   11

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Large Cap Index Fund (Concluded)

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
AFFILIATED PARTNERSHIP — 0.7%
SEI Liquidity Fund, L.P. 0.070% **†(C)		0.7%		14,178,074	$	14,178
Total Affiliated Partnership
(Cost $14,178) ($ Thousands)						14,178

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
CASH EQUIVALENT — 0.3%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†		0.3%		6,858,192	$	6,858
Total Cash Equivalent
(Cost $6,858) ($ Thousands)						6,858
Total Investments in Securities — 100.3%
(Cost $685,196) ($ Thousands)					$	2,074,682

A list of the open futures contracts held by the Fund at November 30, 2020, is as follows:

Type of Contract	Number of Contracts Long		Expiration Date		Notional Amount (Thousands)		Value (Thousands)		Unrealized Appreciation (Thousands)
S&P 500 Index E-MINI		84		Dec-2020	$	13,974	$	15,217	$	1,243
S&P Mid Cap 400 Index E-MINI		13		Dec-2020		2,447		2,819		372
					$	16,421	$	18,036	$	1,615

Percentages are based on a Net Assets of $2,067,456 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

‡ Real Estate Investment Trust.

† Investment in Affiliated Security (see Note 6).

(A) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (see Note 12). The total market value of securities on loan at November 30, 2020, was $13,867 ($ Thousands).

(B) Security is a Master Limited Partnership. At November 30, 2020, such securities amounted to $258 ($ Thousands), or 0.0% of Net Assets of the Fund (see Note 2).

(C) This security was purchased with cash collateral held from securities on loan (see Note 12). The total market value of such securities as of November 30, 2020 was $14,178 ($ Thousands).

Cl — Class

L.P. — Limited Partnership

PLC — Public Limited Company

S&P — Standard & Poor’s

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule

of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total ($)
Common Stock		2,053,646		–		–		2,053,646
Affiliated Partnership		–		14,178		–		14,178
Cash Equivalent		6,858		–		–		6,858
Total Investments in Securities		2,060,504		14,178		–		2,074,682

Other Financial Instruments	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total ($)
Futures Contracts*
Unrealized Appreciation		1,615		–		–		1,615
Total Other Financial Instruments		1,615		–		–		1,615

* Futures contracts are valued at the unrealized appreciation on the instrument.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Investment Co.	$ 366	$ —	$ —	$—	$(10)	$ 356	6,742	$ 2	$—
SEI Liquidity Fund, L.P.	27,289	69,416	(82,520)	2	(9)	14,178	14,178,074	38	—
SEI Daily Income Trust, Government Fund, Cl F	6,854	100,020	(100,016)	—	—	6,858	6,858,192	1	—
Totals	$34,509	$169,436	$(182,536)	$ 2	$(19)	$21,392		$41	$—

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  12   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

S&P 500 Index Fund

^†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK — 98.3%
Communication Services — 10.8%
Alphabet Inc, Cl A*		1.7%		54,641	$	95,862
Alphabet Inc, Cl C*		1.7		53,363		93,958
AT&T Inc		0.7		1,292,791		37,168
Comcast Corp, Cl A		0.7		827,248		41,561
Facebook Inc, Cl A*		2.2		436,978		121,030
Netflix Inc*		0.7		79,979		39,246
Verizon Communications Inc		0.8		751,052		45,371
Walt Disney Co/The*		0.9		328,019		48,550
Other Securities (A)		1.4				79,145
						601,891
Consumer Discretionary — 11.1%
Amazon.com Inc*		4.4		77,360		245,080
Home Depot Inc/The		1.0		195,387		54,202
McDonald’s Corp		0.5		134,887		29,330
NIKE Inc, Cl B		0.5		226,582		30,521
Other Securities (A)		4.7				259,668
						618,801
Consumer Staples — 6.7%
Coca-Cola Co/The		0.7		701,457		36,195
Costco Wholesale Corp		0.6		80,300		31,459
PepsiCo Inc		0.6		251,278		36,242
Procter & Gamble Co/The		1.1		452,667		62,862
Walmart Inc		0.7		251,983		38,501
Other Securities (A)		3.0				164,914
						370,173
Energy — 2.3%
Chevron Corp		0.6		348,901		30,417
Exxon Mobil Corp		0.5		766,300		29,219
Other Securities		1.2				66,173
						125,809
Financials — 10.2%
Bank of America Corp		0.7		1,383,483		38,959
Berkshire Hathaway Inc, Cl B*		1.5		360,328		82,483

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
JPMorgan Chase & Co		1.2%		554,057	$	65,312
Other Securities		6.8				381,379
						568,133
Health Care — 13.4%
Abbott Laboratories		0.6		321,248		34,766
AbbVie Inc		0.6		319,913		33,456
Amgen Inc		0.4		106,691		23,690
Bristol-Myers Squibb Co		0.5		408,370		25,482
Danaher Corp		0.5		114,400		25,698
Johnson & Johnson		1.2		478,670		69,254
Medtronic PLC		0.5		243,561		27,693
Merck & Co Inc		0.7		458,970		36,897
Pfizer Inc		0.7		1,008,235		38,625
Thermo Fisher Scientific Inc		0.6		71,791		33,381
UnitedHealth Group Inc		1.0		172,487		58,014
Other Securities		6.1				339,357
						746,313
Industrials — 8.6%
Honeywell International Inc		0.5		127,787		26,058
Union Pacific Corp		0.5		122,987		25,099
Other Securities (A)		7.6				426,358
						477,515
Information Technology — 27.1%
Accenture PLC, Cl A		0.5		115,296		28,719
Adobe Inc*		0.8		87,095		41,672
Apple Inc		6.3		2,920,984		347,743
Broadcom Inc		0.5		73,159		29,379
Cisco Systems Inc		0.6		767,343		33,011
Intel Corp		0.7		771,652		37,309
Mastercard Inc, Cl A		1.0		160,347		53,958
Microsoft Corp		5.3		1,375,004		294,347
NVIDIA Corp		1.1		111,983		60,030
PayPal Holdings Inc*		0.8		212,883		45,583
QUALCOMM Inc		0.5		204,478		30,093
salesforce.com Inc*		0.7		165,191		40,604
Texas Instruments Inc		0.5		165,983		26,765
Visa Inc, Cl A		1.2		306,570		64,487
Other Securities		6.6				371,144
						1,504,844
Materials — 2.7%
Linde PLC		0.5		95,660		24,529
Other Securities (A)		2.2				123,079
						147,608
Real Estate — 2.5%
OtherSecurities ‡(A)		2.5				138,082

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   13

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

S&P 500 Index Fund (Concluded)

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Utilities — 2.9%
NextEra Energy Inc		0.5%		354,900	$	26,117
Other Securities		2.4				132,053
						158,170
Total Common Stock
(Cost $3,070,259) ($ Thousands)						5,457,339
AFFILIATED PARTNERSHIP — 0.2%
SEI Liquidity Fund, L.P. 0.070% **†(B)		0.2		13,811,270		13,806
Total Affiliated Partnership
(Cost $13,810) ($ Thousands)						13,806

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
CASH EQUIVALENT — 1.4%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†		1.4%		75,326,229	$	75,326
Total Cash Equivalent
(Cost $75,326) ($ Thousands)						75,326
Total Investments in Securities — 99.9%
(Cost $3,159,395) ($ Thousands)					$	5,546,471

A list of the open futures contracts held by the Fund at November 30, 2020, is as follows:

Type of Contract	Number of Contracts Long	Expiration Date	Notional Amount (Thousands)		Value (Thousands)		Unrealized Appreciation (Thousands)
S&P 500 Index E-MINI	535	Dec-2020	$	88,452	$	96,921	$	8,469

Percentages are based on a Net Assets of $5,551,784 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

‡ Real Estate Investment Trust.

† Investment in Affiliated Security (see Note 6).

(A) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (see Note 12). The total market value of securities on loan at November 30, 2020, was $13,405 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 12). The total market value of such securities as of November 30, 2020 was $13,806 ($ Thousands).

Cl — Class

L.P. — Limited Partnership

PLC — Public Limited Company

S&P — Standard & Poor’s

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)		Level 2     ($)		Level 3 ($)		Total ($)
Common Stock		5,457,339		–		–		5,457,339
Affiliated Partnership		–		13,806		–		13,806
Cash Equivalent		75,326		–		–		75,326
Total Investments in Securities		5,532,665		13,806		–		5,546,471
Other Financial Instruments	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total ($)
Futures Contracts*
Unrealized Appreciation		8,469		–		–		8,469
Total Other Financial Instruments		8,469		–		–		8,469

* Futures contracts are valued at the unrealized appreciation on the instrument.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

  14   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Liquidity Fund, L.P.	$ 49,600	$ 96,031	$(131,818)	$12	$(19)	$13,806	13,811,270	$50	$—
SEI Daily Income Trust, Government Fund, Cl F	66,287	550,211	(541,172)	—	—	75,326	75,326,229	7	—
Totals	$115,887	$646,242	$(672,990)	$12	$(19)	$89,132		$57	$—

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   15

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Extended Market Index Fund

^†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK — 99.4%
Communication Services — 4.6%
Liberty Broadband Corp, Cl A *		0.1%		6,783	$	1,063
Liberty Broadband Corp, Cl C *		0.3		25,868		4,070
Liberty Media Corp-Liberty Braves, Cl A *		0.0		1,803		45
Liberty Media Corp-Liberty Braves, Cl C *		0.0		10,465		262
Liberty Media Corp-Liberty Formula One, Cl A *		0.0		7,308		276
Liberty Media Corp-Liberty Formula One, Cl C *		0.1		47,242		1,974
Liberty Media Corp-Liberty SiriusXM, Cl A *		0.1		19,835		812
Liberty Media Corp-Liberty SiriusXM, Cl C *		0.1		45,422		1,863
Match Group Inc*		0.5		54,636		7,606
Roku Inc, Cl A *		0.5		26,400		7,750
Sirius XM Holdings Inc (A)		0.1		280,381		1,820
Spotify Technology SA *		0.6		32,800		9,557
Zillow Group Inc, Cl A *		0.1		15,191		1,676
Zillow Group Inc, Cl C *		0.2		34,482		3,717
Other Securities (A)		1.9				32,252
						74,743
Consumer Discretionary — 16.8%
Burlington Stores Inc*		0.2		16,000		3,497
Lululemon Athletica Inc*		0.6		28,000		10,366
Pinterest Inc, Cl A *		0.4		100,400		7,030
Tesla Inc*		6.4		183,495		104,152
Wayfair Inc, Cl A *(A)		0.3		16,200		4,121
Yum China Holdings Inc		0.4		99,100		5,587
Other Securities (A)		8.5				138,501
						273,254
Consumer Staples — 2.6%
Other Securities (A)		2.6				43,230

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Energy — 1.7%
Other Securities (A)		1.7%			$	27,703
Financials — 11.4%
KKR & Co Inc		0.3		131,500		4,988
KKR Real Estate Finance Trust Inc‡		0.0		5,800		106
SEI Investments Co.†		0.1		30,319		1,599
Other Securities ‡(A)(B)		11.0				178,418
						185,111
Health Care — 15.0%
Alnylam Pharmaceuticals Inc*		0.2		27,989		3,636
Exact Sciences Corp *		0.3		37,180		4,501
Insulet Corp *		0.3		16,121		4,155
Moderna Inc *(A)		0.7		71,200		10,875
Seagen Inc*		0.3		30,000		5,109
Teladoc Health Inc *(A)		0.3		25,424		5,054
Veeva Systems Inc, Cl A *		0.6		32,900		9,109
Other Securities (A)		12.3				200,154
						242,593
Industrials — 12.1%
CoStar Group Inc*		0.6		9,763		8,890
HEICO Corp		0.1		11,818		1,460
HEICO Corp, Cl A		0.1		18,582		2,058
TransUnion		0.3		46,800		4,263
Uber Technologies Inc*		1.1		343,800		17,073
Other Securities (A)		9.9				163,264
						197,008
Information Technology — 23.4%
Atlassian Corp PLC, Cl A *		0.4		31,800		7,157
Coupa Software Inc*		0.3		16,400		5,394
Crowdstrike Holdings Inc, Cl A *		0.3		37,500		5,748
Datadog Inc, Cl A *		0.2		38,000		3,759
Dell Technologies Inc, Cl C *		0.3		61,972		4,278
DocuSign Inc, Cl A *		0.6		44,000		10,027
Enphase Energy Inc*		0.2		26,500		3,619
EPAM Systems Inc*		0.3		13,100		4,223
HubSpot Inc*		0.3		10,200		4,022
Marvell Technology Group Ltd		0.5		163,357		7,562
MongoDB Inc, Cl A *(A)		0.2		12,300		3,534
Okta Inc, Cl A *		0.4		28,500		6,984
Palo Alto Networks Inc*		0.4		23,633		6,946
RingCentral Inc, Cl A *		0.4		19,200		5,703
Slack Technologies Inc, Cl A *(A)		0.3		93,100		3,992
Splunk Inc*		0.5		39,884		8,144
Square Inc, Cl A *		1.2		91,300		19,261
SS&C Technologies Holdings Inc		0.2		55,218		3,804
Trade Desk Inc/The, Cl A *		0.6		10,300		9,281
Trimble Inc*		0.2		61,820		3,701
Twilio Inc, Cl A *		0.7		33,816		10,824
Workday Inc, Cl A *		0.6		42,289		9,506
Zendesk Inc*		0.2		28,300		3,778

  16   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Zoom Video Communications Inc, Cl A *		1.2%		41,300	$	19,756
Other Securities (A)		12.9				210,150
						381,153
Materials — 3.4%
Other Securities (A)		3.4				55,245
Real Estate — 6.3%
Invitation Homes Inc ‡		0.3		137,981		3,944
Other Securities ‡(A)		6.0				99,857
						103,801
Utilities — 2.1%
PG&E Corp *		0.3		318,700		4,047
Other Securities (A)		1.8				29,673
						33,720
Total Common Stock
(Cost $1,024,802) ($ Thousands)						1,617,561
RIGHTS* — 0.0%
Other Securities(C)#		0.0				5
Total Rights
(Cost $3) ($ Thousands)						5

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
WARRANTS * — 0.0%
Other Securities		0.0%			$	–
Total Warrants
(Cost $–) ($ Thousands)						–
AFFILIATED PARTNERSHIP — 7.9%
SEI Liquidity Fund, L.P. 0.070% **†(D)		7.9		129,101,211		129,129
Total Affiliated Partnership
(Cost $129,102) ($ Thousands)						129,129
CASH EQUIVALENT — 0.0%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†		0.0		363,054		363
Total Cash Equivalent
(Cost $363) ($ Thousands)						336
Total Investments in Securities — 107.3%
(Cost $1,154,270) ($ Thousands)					$	1,747,058

A list of the open futures contracts held by the Fund at November 30, 2020 is as follows:

Type of Contract	Number of Contracts Long		Expiration Date		Notional Amount (Thousands)		Value (Thousands)		Unrealized Appreciation (Thousands)
Russell 2000 Index E-MINI		76		Dec-2020	$	5,624	$	6,916	$	1,292
S&P Mid Cap 400 Index E-MINI		27		Dec-2020		4,896		5,855		959
					$	10,520	$	12,771	$	2,251

Percentages are based on a Net Assets of $1,628,378 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

‡ Real Estate Investment Trust.

† Investment in Affiliated Security (see Note 6).

# Expiration date not available.

(A) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (see Note 12). The total market value of securities on loan at November 30, 2020, was $126,421 ($ Thousands).

(B) Security is a Master Limited Partnership. At November 30, 2020, such securities amounted to $901 ($ Thousands), or 0.1% of Net Assets of the Fund (see Note 2).

(C) Level 3 security in accordance with fair value hierarchy.

(D) This security was purchased with cash collateral held from securities on loan (see Note 12). The total market value of such securities as of November 30, 2020 was $129,129 ($ Thousands).

Cl — Class

PLC — Public Limited Company

L.P.— Limited Partnership

S&P— Standard & Poor’s

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   17

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Extended Market Index Fund (Concluded)

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)		Level 2 ($)		Level 3 ($)(1)		Total ($)
Common Stock		1,617,561		–		–		1,617,561
Rights		3		–		2		5
Warrants		–		–		–		–
Affiliated Partnership		–		129,129		–		129,129
Cash Equivalent		363		–		–		363
Total Investments in Securities		1,617,927		129,129		2		1,747,058

Other Financial Instruments	Level 1 ($)		Level 2     ($)		Level 3 ($)		Total ($)
Futures Contracts*
Unrealized Appreciation		2,251		–		–		2,251
Total Other Financial Instruments		2,251		–		–		2,251

(1) A reconciliation of Level 3 instruments is presented when the Fund has a significant amount of Level 3 investments at the beginning and/or end of the period in relation to the net assets. Management has concluded that Level 3 investments are not material in relation to net assets.

* Futures contracts are valued at the unrealized appreciation on the instrument.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Investments Co	$ 1,828	$ 140	$ (328)	$ (20)	$ (21)	$ 1,599	30,319	$ 12	$ —
SEI Liquidity Fund, L.P.	155,062	294,693	(320,576)	(4)	(46)	129,129	129,101,211	495	—
SEI Daily Income Trust, Government Fund, Cl F	—	123,257	(122,894)	—	—	363	363,054	1	—
Totals	$ 156,890	$ 418,090	$ (443,798)	$ (24)	$ (67)	$ 131,091		$ 508	$ —

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  18   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Small Cap Fund

^†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK — 98.9%
Communication Services — 2.4%
Other Securities (A)		2.4	%			$	6,622
Consumer Discretionary — 12.6%
Ethan Allen Interiors Inc		0.3			47,440		867
Green Brick Partners Inc*		0.3			36,741		800
Group 1 Automotive Inc (A)		0.3			7,618		905
Haverty Furniture Cos Inc (A)		0.4			38,906		1,059
Hibbett Sports Inc*		0.3			19,315		795
TopBuild Corp *		0.7			10,825		1,886
Williams-Sonoma Inc		0.3			7,404		811
Wingstop Inc		0.5			10,450		1,330
Other Securities (A)(B)		9.5					26,682
							35,135
Consumer Staples — 5.7%
Freshpet Inc*		0.9			18,137		2,483
WD-40 Co		0.3			3,461		880
Other Securities (A)		4.5					12,605
							15,968
Energy — 1.3%
Other Securities (A)		1.3					3,747
Financials — 17.2%
CNO Financial Group Inc		0.4			57,500		1,224
CryoPort Inc *(A)		0.3			16,595		807
First Horizon Corp		0.4			79,500		972
Hamilton Lane Inc, Cl A		0.5			20,575		1,438
Hanover Insurance Group Inc/ The		0.3			7,500		843
Kinsale Capital Group Inc		0.6			7,356		1,767
Synovus Financial Corp		0.4			33,400		1,054
Walker & Dunlop Inc		0.3			10,400		832
Other Securities ‡(A)		14.0					39,037
							47,974

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Health Care — 15.8%
Addus HomeCare Corp *		0.4	%		11,100	$	1,102
Ensign Group Inc/The		0.7			28,501		2,048
Halozyme Therapeutics Inc*		0.4			27,893		1,091
Natera Inc*		0.9			27,523		2,429
Progyny Inc *(A)		0.4			29,759		1,056
Repligen Corp *		0.9			12,881		2,443
United Therapeutics Corp *		0.3			6,800		902
Other Securities (A)		11.8					33,166
							44,237
Industrials — 17.4%
Air Transport Services Group Inc*		0.7			59,341		1,824
Altra Industrial Motion Corp		0.6			29,691		1,685
Builders FirstSource Inc*		0.3			24,965		934
CRA International Inc		0.3			18,352		841
Exponent Inc		0.8			27,495		2,282
Federal Signal Corp		0.3			27,320		848
Generac Holdings Inc*		0.8			10,143		2,187
MSA Safety Inc (A)		0.4			7,465		1,116
Trex Co Inc*		0.8			30,243		2,263
Triton International Ltd/Bermuda		0.4			22,602		1,023
Vertiv Holdings Co, Cl A		0.5			76,660		1,434
Other Securities (A)		11.5					32,020
							48,457
Information Technology — 16.2%
Avalara Inc*		0.8			13,140		2,257
Brightcove Inc*		0.3			49,032		819
Littelfuse Inc		0.5			6,096		1,466
LivePerson Inc *(A)		0.4			19,035		1,112
Monolithic Power Systems Inc		0.9			7,587		2,428
Nova Measuring Instruments
Ltd*(A)		0.3			14,705		949
Novanta Inc*		0.4			9,389		1,126
Silicon Laboratories Inc*		0.4			10,580		1,240
WNS Holdings Ltd ADR *		0.4			16,860		1,187
Other Securities (A)		11.8					32,555
							45,139
Materials — 3.6%
Greif Inc, Cl A		0.4			21,600		1,050
Other Securities		3.2					9,049
							10,099
Real Estate — 4.2%
Rexford Industrial Realty Inc ‡		0.4			23,258		1,114
Other Securities ‡(A)		3.8					10,558
							11,672

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   19

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Small Cap Fund (Concluded)

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Utilities — 2.5%
National Fuel Gas Co		0.4	%		24,500	$	1,009
Other Securities		2.1					6,071
							7,080
Total Common Stock (Cost $235,408) ($ Thousands)							276,130
RIGHTS — 0.0%
Other Securities* (B)		0.0					—
Total Rights (Cost $–) ($ Thousands)							—
AFFILIATED PARTNERSHIP — 4.8%
SEI Liquidity Fund, L.P. 0.070% **† (C)		4.8			13,427,347		13,430
Total Affiliated Partnership (Cost $13,427) ($ Thousands)							13,430
CASH EQUIVALENT — 1.3%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†		1.3			3,732,394		3,732
Total Cash Equivalent (Cost $3,732) ($ Thousands)							3,732
Total Investments in Securities — 105.0% (Cost $252,567) ($ Thousands)						$	293,292

Percentages are based on Net Assets of $279,366 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

† Investment in Affiliated Security (See Note 6).

‡ Real Estate Investment Trust.

(A) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (See Note 12). The total market value of securities on loan at November 30, 2020 was $12,914 ($ Thousands).

(B) Level 3 security in accordance with fair value hierarchy.

(C) This security was purchased with cash collateral held from securities on loan (See Note 12). The total market value of such securities as of November 30, 2020 was $13,430 ($ Thousands).

ADR — American Depositary Receipt

Cl — Class

L.P. — Limited Partnership

Ltd. — Limited

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments ($ Thousands):

Investments in Securities	Level 1 ($)		Level 2 ($)		Level 3 ($)(1)		Total ($)
Common Stock		276,130		–		–		276,130
Rights		–		–		–^		–^
Affiliated Partnership		–		13,430		–		13,430
Cash Equivalent		3,732		–		–		3,732
Total Investments in Securities		279,862		13,430		–^		293,292

(1) A reconciliation of Level 3 instruments is presented when the Fund has a significant amount of Level 3 investments at the beginning and/or end of the period in relation to net assets. Management has concluded that Level 3 investments are not material in relation to net assets.

^ Securities market value less than $500.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

  20   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Liquidity Fund, L.P.	$19,356	$  34,288	$(40,209)	$ —	$(5)	$ 13,430	13,427,347	$  62	$—
SEI Daily Income Trust, Government Fund, Cl F	2,845	35,903	(35,016)	—	—	3,732	3,732,394	—	—
Totals	$22,201	$ 70,191	$(75,225)	$ —	$(5)	$ 17,162		$ 62	$—

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   21

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Small Cap II Fund

^†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK — 98.1%
Communication Services — 3.2%
Cinemark Holdings Inc (A)		0.4%		100,978	$	1,560
Lions Gate Entertainment Corp, Cl A *		0.5		197,222		1,921
Other Securities (A)		2.3				9,119
						12,600
Consumer Discretionary — 12.9%
American Eagle Outfitters Inc (A)		0.8		176,250		3,171
Modine Manufacturing Co *		0.9		336,570		3,675
Norwegian Cruise Line Holdings Ltd*(A)		0.3		56,632		1,295
Urban Outfitters Inc*		0.4		51,751		1,417
Other Securities (A)		10.5				41,473
						51,031
Consumer Staples — 5.4%
TreeHouse Foods Inc*		0.4		39,748		1,635
Other Securities (A)		5.0				19,699
						21,334
Energy — 3.4%
Cimarex Energy Co		0.5		58,159		2,091
Delek US Holdings Inc		0.5		148,955		1,980
Murphy USA Inc		0.5		14,963		1,918
Other Securities (A)		1.9				7,330
						13,319
Financials — 17.6%
Argo Group International
Holdings Ltd		0.6		56,631		2,219
Bank of NT Butterfield & Son Ltd/The		0.4		46,218		1,463
BankUnited Inc		1.1		147,707		4,211
CNO Financial Group Inc		0.9		163,400		3,477
First Commonwealth Financial Corp		0.4		149,129		1,442

Description	Percentage of Net Assets (%)	Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
First Horizon Corp	1.4%		450,950	$	5,511
FNB Corp/PA	1.1		470,832		4,157
Hanover Insurance Group Inc/The	0.4		12,987		1,459
Hercules Capital	0.3		96,786		1,291
Lincoln National Corp	0.7		57,340		2,707
MGIC Investment Corp	0.4		140,245		1,677
Pinnacle Financial Partners Inc	0.4		30,432		1,648
Sterling Bancorp/DE	0.4		101,446		1,621
TCF Financial Corp	0.9		102,028		3,428
Umpqua Holdings Corp	0.9		243,590		3,383
Western Alliance Bancorp	0.4		27,409		1,405
Other Securities ‡(A)	6.9				28,720
					69,819
Health Care — 15.5%
AMN Healthcare Services Inc*	0.5		33,071		2,155
Ensign Group Inc/The	0.5		28,077		2,018
Integra LifeSciences Holdings Corp*	0.6		43,232		2,366
Veracyte Inc*	0.3		24,458		1,333
Other Securities (A)	13.6				53,910
					61,782
Industrials — 16.4%
ABM Industries Inc	0.3		33,879		1,304
ACCO Brands Corp	0.5		276,834		2,121
Altra Industrial Motion Corp	0.5		32,377		1,838
BWX Technologies Inc	0.5		33,761		1,920
Clean Harbors Inc*	0.5		27,012		1,955
ITT Inc	0.4		20,639		1,499
JetBlue Airways Corp *	0.6		164,485		2,482
Masonite International Corp *	0.4		13,656		1,366
Regal Beloit Corp	0.4		13,378		1,593
Tetra Tech Inc	0.5		14,708		1,754
WESCO International Inc *	0.8		48,725		3,178
Other Securities (A)	11.0				43,694
					64,704
Information Technology — 13.6%
J2 Global Inc	0.6		28,698		2,572
ManTech International Corp/ VA, Cl A	0.4		19,157		1,475
NCR Corp *	0.6		86,575		2,395
Power Integrations Inc	0.4		23,329		1,665
Rogers Corp *	0.4		9,537		1,401
Super Micro Computer Inc*	0.7		92,479		2,609
Other Securities (A)(B)(C)	10.5				41,831
					53,948
Materials — 5.2%
Commercial Metals Co	0.7		142,450		2,836
Livent Corp *(A)	0.4		107,365		1,629
Other Securities (A)	4.1				15,957
					20,422

  22   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Real Estate — 2.5%
Other Securities ‡(A)		2.5%			$	10,049
Utilities — 2.4%
Portland General Electric Co		0.7		62,105		2,570
Other Securities		1.7				6,858
						9,428
Total Common Stock (Cost $314,181) ($ Thousands)						388,436
RIGHTS* — 0.0%
Other Securities#(B)(C)		0.0				—
Total Rights (Cost $–) ($ Thousands)						—
AFFILIATED PARTNERSHIP — 7.2%
SEI Liquidity Fund, L.P. 0.070% **†(D)		7.2		28,500,233		28,508
Total Affiliated Partnership (Cost $28,501) ($ Thousands)						28,508
CASH EQUIVALENT — 2.1%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†		2.1		8,156,082		8,156
Total Cash Equivalent
(Cost $8,156) ($ Thousands)						8,156
Total Investments in Securities — 107.4%
(Cost $350,838)($ Thousands)					$	425,100

Percentages are based on a Net Assets of $395,922 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

^‡  Real Estate Investment Trust.

^†  Investment in Affiliated Security (see Note 6).

# Expiration date not available.

(A) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (see Note 12). The total market value of securities on loan at November 30, 2020, was $27,057 ($ Thousands).

(B) Level 3 security in accordance with fair value hierarchy.

(C) Security fair valued using methods determined in good faith by the Valuation Committee of the Board of Trustees. The total market value of such securities as of November 30, 2020 was $2 ($ Thousands) and represented 0.0% of the Net Assets of the Fund.

(D) This security was purchased with cash collateral held from securities on loan (see Note 12). The total market value of such securities as of November 30, 2020 was $28,508 ($ Thousands).

Cl — Class

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)		Level 2 ($)		Level 3 ($)(1)		Total ($)
Common Stock		388,434		–		2		388,436
Rights		–		–		–^		–
Affiliated Partnership		–		28,508		–		28,508
Cash Equivalent		8,156		–		–		8,156
Total Investments in Securities		396,590		28,508		2		425,100

(1) A reconciliation of Level 3 instruments is presented when the Fund has a significant amount of Level 3 investments at the beginning and/or end of the period in relation to net assets. Management has concluded that Level 3 investments are not material in relation to net assets.

^ Securities market value less than $500.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Liquidity Fund, L.P.	$40,682	$ 86,261	$(98,423)	$—	$(12)	$ 28,508	28,500,233	$ 129	$—
SEI Daily Income Trust, Government Fund, Cl F	8,951	76,071	(76,866)	—	—	8,156	8,156,082	1	—
Totals	$49,633	$162,332	$(175,289)	$—	$(12)	$ 36,664		$ 130	$—

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   23

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Small/Mid Cap Equity Fund

^†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).

Description	Percentage of Net Assets (%)	Shares		Market Value     ($ Thousands)
COMMON STOCK — 96.6%
Communication Services — 2.7%
Nexstar Media Group Inc, Cl A	0.9%		94,631	$	9,960
Other Securities (A)	1.8				19,533
					29,493
Consumer Discretionary — 11.2%
Lithia Motors Inc, Cl A	0.5		19,052		5,512
TopBuild Corp *	0.5		31,965		5,569
Wingstop Inc	0.5		43,304		5,513
Other Securities (A)	9.7				105,216
					121,810
Consumer Staples — 3.9%
Freshpet Inc*	0.7		51,861		7,099
Hostess Brands Inc, Cl A *(A)	0.4		353,072		4,784
Other Securities (A)	2.8				30,590
					42,473
Energy — 1.3%
Other Securities (A)(B)	1.3				13,882
Financials — 14.6%
Bank OZK	0.4		170,992		4,781
Hamilton Lane Inc, Cl A	0.4		67,300		4,703
PacWest Bancorp	0.6		276,999		6,443
PROG Holdings Inc	0.4		75,008		4,720
Starwood Property Trust Inc ‡	0.5		291,542		5,230
Other Securities ‡(A)	12.3				133,214
					159,091
Health Care — 14.0%
Change Healthcare Inc*	0.5		302,250		5,178
Ensign Group Inc/The	1.2		181,333		13,032
Natera Inc*	0.7		87,815		7,751
Pennant Group Inc/The *	0.1		22,100		1,120
Repligen Corp *	0.7		41,772		7,923
STERIS PLC	0.8		43,677		8,465

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Syneos Health Inc, Cl A *		0.7%		110,519	$	7,277
Other Securities (A)		9.3				101,418
						152,164
Industrials — 18.3%
ABM Industries Inc		0.6		157,499		6,064
Air Transport Services Group Inc*		0.6		203,328		6,250
Altra Industrial Motion Corp		0.5		99,205		5,631
BWX Technologies Inc		0.7		141,161		8,029
Colfax Corp *		0.5		152,533		5,503
Exponent Inc		0.8		107,946		8,961
Generac Holdings Inc *		0.8		42,525		9,168
Huntington Ingalls Industries Inc		0.4		29,142		4,668
KAR Auction Services Inc		0.4		266,765		4,815
MSC Industrial Direct Co Inc, Cl A		0.4		53,454		4,454
Ritchie Bros Auctioneers Inc		0.4		62,603		4,496
Snap-on Inc		0.5		33,722		5,930
Trex Co Inc*		0.7		98,930		7,402
TriNet Group Inc*		0.4		61,035		4,578
Vertiv Holdings Co, Cl A		0.4		250,775		4,692
Other Securities (A)		10.2				108,730
						199,371
Information Technology — 17.2%
ACI Worldwide Inc*		0.6		190,691		6,213
Avalara Inc*		0.7		42,985		7,383
Euronet Worldwide Inc*		0.4		35,044		4,711
J2 Global Inc*		1.3		158,479		14,201
Littelfuse Inc		0.8		35,292		8,489
Monolithic Power Systems Inc		0.6		20,891		6,684
ON Semiconductor Corp *		0.4		173,597		4,991
Silicon Motion Technology Corp ADR		0.4		120,143		4,767
Verint Systems Inc*		0.4		86,825		4,946
Other Securities (A)		11.6				125,236
						187,621
Materials — 5.1%
Axalta Coating Systems Ltd *		0.4		157,269		4,499
FMC Corp		0.8		75,726		8,785
Quaker Chemical Corp		0.4		18,103		4,471
Silgan Holdings Inc		0.8		243,983		8,247
Other Securities		2.7				29,038
						55,040
Real Estate — 6.5%
Gaming and Leisure Properties Inc‡		0.6		161,747		6,719
Medical Properties Trust Inc ‡		0.6		363,229		7,047
Rexford Industrial Realty Inc ‡		0.4		93,381		4,475
Other Securities ‡(A)		4.9				52,610
						70,851

  24   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Percentage of Net Assets (%)	Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Utilities — 1.8%
Other Securities (A)	1.8%			$	20,294
Total Common Stock (Cost $856,292) ($ Thousands)					1,052,090
AFFILIATED PARTNERSHIP — 6.9%
SEI Liquidity Fund, L.P. 0.070% **†(C)	6.9		75,095,493		75,105
Total Affiliated Partnership (Cost $75,095) ($ Thousands)					75,105
CASH EQUIVALENT — 2.6%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†	2.6		28,238,588		28,239
Total Cash Equivalent (Cost $28,239) ($ Thousands)					28,239
Total Investments in Securities — 106.1% (Cost $959,626)($ Thousands)				$	1,155,434

Percentages are based on Net Assets of $1,088,667 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

^†  Investment in Affiliated Security (See Note 6).

^‡  Real Estate Investment Trust.

(A) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (See Note 12). The total market value of securities on loan at November 30, 2020, was $72,156 ($ Thousands).

(B) Security is a Master Limited Partnership. At November 30, 2020, such securities amounted to $2,223 ($ Thousands), or 0.2% of Net Assets (See Note 2).

(C) This security was purchased with cash collateral held from securities on loan (See Note 12). The total market value of such securities as of November 30, 2020 was $75,105 ($ Thousands).

ADR — American Depositary Receipt

Cl — Class

L.P. —Limited Partnership

Ltd. —Limited

PLC — Public Limited Company

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total ($)
Common Stock		1,052,090		–		–		1,052,090
Affiliated Partnership		–		75,105		–		75,105
Cash Equivalent		28,239		–		–		28,239
Total Investments in Securities		1,080,329		75,105		–		1,155,434

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   25

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Small/Mid Cap Equity Fund (Concluded)

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Liquidity Fund, L.P.	$140,805	$176,844	$ (242,509)	$ 8	$(43)	$75,105	75,095,493	$ 269	$—
SEI Daily Income Trust, Government Fund, Cl F	49,188	168,814	(189,763)	—	—	28,239	28,238,588	3	—
Totals	$189,993	$345,658	$ (432,272)	$ 8	$(43)	$ 103,344		$ 272	$—

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  26   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

U.S. Equity Factor Allocation Fund

†Percentages are based on total investments.
Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK — 98.6%
Communication Services — 7.4%
Alphabet Inc, Cl A *		1.3	%		7,902	$	13,863
Alphabet Inc, Cl C *		1.3			7,851		13,824
AT&T Inc		0.6			212,926		6,122
Discovery Inc, Cl A *		0.0			6,900		186
Discovery Inc, Cl C *		0.6			261,037		6,270
Facebook Inc, Cl A *		1.2			44,292		12,267
Omnicom Group Inc		0.5			90,683		5,713
Verizon Communications Inc		0.6			101,880		6,155
Other Securities		1.3					14,030
							78,430
Consumer Discretionary — 13.9%
Amazon.com Inc *		1.9			6,296		19,946
Best Buy Co Inc		0.9			87,488		9,519
eBay Inc		1.3			272,139		13,724
Lennar Corp, Cl A		0.5			69,097		5,242
Lennar Corp, Cl B		0.1			12,480		758
Target Corp		1.5			90,077		16,172
Other Securities		7.7					81,934
							147,295
Consumer Staples — 10.9%
Clorox Co/The		0.6			29,316		5,950
Colgate-Palmolive Co		0.6			75,155		6,436
Kroger Co/The		1.1			355,262		11,724
PepsiCo Inc		0.5			36,600		5,279
Procter & Gamble Co/The		1.8			135,054		18,755
Walmart Inc		1.6			110,376		16,864
Other Securities		4.7					51,357
							116,365
Energy — 0.5%
Other Securities		0.5					5,205
Financials — 9.1%
Bank of New York Mellon Corp/ The		1.1			302,332		11,827
Citigroup Inc		0.9			169,996		9,362
Synchrony Financial		0.6			215,034		6,552

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
T Rowe Price Group Inc		1.5	%		108,328	$	15,535
Other Securities		5.0					53,115
							96,391
Health Care — 14.3%
AmerisourceBergen Corp, Cl A		0.6			62,096		6,403
Amgen Inc		1.0			47,110		10,460
Bristol-Myers Squibb Co		0.5			84,508		5,273
Cardinal Health Inc		0.5			102,730		5,608
DaVita Inc *		0.9			84,652		9,299
Humana Inc		0.6			14,672		5,876
Johnson & Johnson		0.7			51,146		7,400
McKesson Corp		1.0			59,336		10,675
Medtronic PLC		0.5			47,440		5,394
Merck & Co Inc		1.3			172,154		13,839
Pfizer Inc		0.7			178,928		6,855
UnitedHealth Group Inc		0.9			28,824		9,695
Other Securities		5.1					55,251
							152,028
Industrials — 9.5%
Expeditors International of Washington Inc		0.7			78,664		7,030
Honeywell International Inc		0.8			41,808		8,525
PACCAR Inc		1.0			121,193		10,551
Robert Half International Inc		0.6			101,424		6,509
Other Securities		6.4					67,994
							100,609
Information Technology — 28.4%
Accenture PLC, Cl A		1.1			47,368		11,799
Apple Inc		4.4			390,948		46,542
Arrow Electronics Inc *		0.6			69,520		6,371
Cisco Systems Inc		1.1			260,716		11,216
Cognizant Technology Solutions Corp, Cl A		1.1			150,143		11,731
HP Inc		0.9			434,530		9,529
Intel Corp		1.2			264,586		12,793
Intuit Inc		1.4			40,967		14,421
Microsoft Corp		4.7			235,113		50,331
Nuance Communications Inc *		0.7			161,580		6,969
Oracle Corp		1.3			234,695		13,547
Other Securities		9.9					107,092
							302,341
Materials — 2.7%
PPG Industries Inc		0.6			46,855		6,877
Other Securities		2.1					22,827
							29,704
Real Estate — 1.0%
Other Securities ‡		1.0					10,587

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   27

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

U.S. Equity Factor Allocation Fund (Concluded)

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Utilities — 0.9%
Exelon Corp		0.6	%		159,948	$	6,569
Other Securities		0.3					3,509
							10,078
Total Common Stock (Cost $839,135) ($ Thousands)							1,049,033
WARRANT — 0.0%
Other Securities*		0.0					–
Total Warrant (Cost $–) ($ Thousands)							–
CASH EQUIVALENT — 0.8%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†		0.8			8,324,263		8,324
Total Cash Equivalent (Cost $8,324) ($ Thousands)							8,324
Total Investments in Securities — 99.4% (Cost $847,459)($ Thousands)						$	1,057,357

A list of the open future contracts held by the Fund at November 30, 2020, is as follows:

Type of Contract	Number of           Contracts Long		Expiration Date		Notional Amount (Thousands)		Value     (Thousands)	Unrealized     Appreciation (Thousands)
S&P 500 Index E-MINI		48		Dec-2020		$                    8,206	$                8,696	$                            490

Percentages are based on a Net Assets of $1,063,512 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

^‡  Real Estate Investment Trust.

^†  Investment in Affiliated Security (see Note 6).

Cl — Class

PLC — Public Limited Company

S&P — Standard & Poor’s

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1       ($)		Level 2       ($)		Level 3       ($)		Total           ($)
Common Stock		1,049,033		–		–		1,049,033
Warrant		–		–		–		–
Cash Equivalent		8,324		–		–		8,324
Total Investments in Securities		1,057,357		–		–		1,057,357
Other Financial Instruments	Level 1       ($)		Level 2       ($)		Level 3       ($)		Total           ($)
Futures Contracts*
Unrealized Appreciation		490		–		–		490
Total Other Financial Instruments		490		–		–		490

* Future contracts are valued at the unrealized appreciation on the instrument.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in the Notes to Financial Statements.

  28   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Daily Income Trust, Government Fund, Cl F	$ 15,622	$ 45,929	$ (53,227)	$ —	$ —	$ 8,324	8,324,263	$ 1	$ —

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   29

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

U.S. Managed Volatility Fund

†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).
Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK — 98.1%
Communication Services — 9.5%
AT&T Inc		1.6	%		727,100	$	20,904
Comcast Corp, Cl A		1.5			389,200		19,553
Omnicom Group Inc		0.5			116,900		7,365
Verizon Communications Inc		2.4			520,653		31,453
Other Securities (A)		3.5					46,517
							125,792
Consumer Discretionary — 9.8%
AutoZone Inc *		1.1			13,000		14,790
eBay Inc		1.4			364,700		18,392
Target Corp		2.7			198,600		35,654
Other Securities (A)		4.6					61,288
							130,124
Consumer Staples — 17.2%
Altria Group Inc		0.7			226,400		9,018
General Mills Inc		1.4			306,217		18,624
J M Smucker Co/The		1.5			173,270		20,307
Kellogg Co		0.8			163,728		10,464
Kimberly-Clark Corp		0.8			72,600		10,114
Kroger Co/The		1.5			620,574		20,479
Tyson Foods Inc, Cl A		1.1			223,400		14,566
Walmart Inc		1.6			139,744		21,351
Other Securities (A)		7.8					103,717
							228,640
Energy — 0.7%
Other Securities (A)		0.7					9,454
Financials — 11.9%
Aflac Inc		0.9			258,600		11,360
Allstate Corp/The		1.4			177,400		18,157
American Financial Group Inc/OH		0.9			133,500		11,936
Annaly Capital Management Inc‡		0.6			902,000		7,216
Berkshire Hathaway Inc, Cl B *		2.0			116,400		26,645
National Bank of Canada		0.5			122,700		6,812

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
US Bancorp		0.5	%		158,300	$	6,840
Other Securities ‡(A)		5.1					68,546
							157,512
Health Care — 14.7%
AbbVie Inc		0.6			71,100		7,435
Amgen Inc		0.8			50,100		11,124
Bristol-Myers Squibb Co		1.8			374,270		23,354
CVS Health Corp		1.0			197,400		13,382
Gilead Sciences Inc		0.8			167,200		10,144
Johnson & Johnson		2.3			209,423		30,299
Merck & Co Inc		2.3			380,442		30,584
Pfizer Inc		1.4			481,800		18,458
Other Securities (A)		3.7					50,212
							194,992
Industrials — 8.6%
3M Co		0.8			64,300		11,107
Allison Transmission Holdings Inc, Cl A		0.6			179,500		7,368
Cummins Inc		0.6			33,700		7,791
Republic Services Inc, Cl A		0.7			91,300		8,831
Waste Management Inc		0.7			72,800		8,673
Other Securities (A)		5.2					70,926
							114,696
Information Technology — 14.7%
Amdocs Ltd		2.0			393,545		25,899
Cisco Systems Inc		1.2			371,300		15,973
F5 Networks Inc *		1.1			89,233		14,528
Intel Corp		1.6			458,300		22,159
International Business Machines Corp		1.2			127,800		15,786
Juniper Networks Inc		0.8			495,700		10,791
Oracle Corp		2.2			508,500		29,351
Western Union Co/The		1.1			627,600		14,159
Other Securities (A)		3.5					47,130
							195,776
Materials — 3.8%
Berry Global Group Inc *		0.6			149,797		7,939
Sonoco Products Co		0.6			127,100		7,379
Other Securities		2.6					35,180
							50,498
Real Estate — 1.7%
Other Securities ‡(A)		1.7					21,873
Utilities — 5.5%
Entergy Corp		1.2			150,600		16,393
Evergy Inc		1.1			258,200		14,307
Exelon Corp		1.5			476,400		19,566
Other Securities (A)		1.7					23,142
							73,408
Total Common Stock (Cost $1,075,279) ($ Thousands)							1,302,765

  30   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Percentage of Net Assets (%)	Shares		Market Value ($ Thousands)
AFFILIATED PARTNERSHIP — 2.8%
SEI Liquidity Fund, L.P. 0.070% **†(B)	2.8%		37,731,208	$	37,738
Total Affiliated Partnership (Cost $37,737) ($ Thousands)					37,738

Description	Percentage of Net Assets (%)	Shares		Market Value     ($ Thousands)
CASH EQUIVALENT — 1.7%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†	1.7%		22,615,933	$	22,616
Total Cash Equivalent (Cost $22,616) ($ Thousands)					22,616
Total Investments in Securities – 102.6% (Cost $1,135,632)($ Thousands)				$	1,363,119

A list of the open futures contracts held by the Fund at November 30, 2020, is as follows:

Type of Contract	Number of Contracts Long		Expiration Date		Notional Amount (Thousands)		Value (Thousands)		Unrealized Appreciation (Thousands)
S&P 500 Index E-MINI		75		Dec-2020	$	13,177	$	13,587	$	410

Percentages are based on Net Assets of $1,328,438 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

^†  Investment in Affiliated Security (See Note 6).

^‡  Real Estate Investment Trust.

(A) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (See Note 12). The total market value of securities on loan at November 30, 2020, was $36,640 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (See Note 12). The total market value of such securities as of November 30, 2020 was $37,738 ($ Thousands).

Cl – Class

L.P. – Limited Partnership

Ltd. – Limited

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total ($)
Common Stock		1,302,765		–		–		1,302,765
Affiliated Partnership		–		37,738		–		37,738
Cash Equivalent		22,616		–		–		22,616
Total Investments in Securities		1,325,381		37,738		–		1,363,119

Other Financial Instruments	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total ($)
Futures Contracts* Unrealized Appreciation		410		–		–		410
Total Other Financial Instruments		410		–		–		410

*Futures contracts are valued at the unrealized appreciation on the instrument.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   31

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

U.S. Managed Volatility Fund (Concluded)

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Liquidity Fund, L.P.	$ 19,825	$ 92,031	$ (74,114)	$ –	$(4)	$ 37,738	37,731,208	$ 55	$ –
SEI Daily Income Trust, Government Fund, Cl F	39,061	126,803	(143,248)	–	–	22,616	22,615,933	2	–
Totals	$ 58,886	$ 218,834	$ (217,362)	$ –	$(4)	$60,354		$ 57	$ –

Amounts designated as “–” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  32   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Global Managed Volatility Fund

†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).
Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK — 96.7%
Australia — 1.3%
Other Securities		1.3	%			$	37,895
Austria — 0.0%
Other Securities		0.0					553
Belgium — 0.5%
Other Securities		0.5					13,720
Canada — 3.8%
Loblaw Cos Ltd		0.5			289,651		14,350
Other Securities (A)		3.3					95,471
							109,821
Denmark — 0.5%
Other Securities		0.5					16,167
Finland — 0.1%
Other Securities		0.1					3,969
France — 1.8%
Sanofi		0.8			237,112		24,026
Other Securities		1.0					27,369
							51,395
Germany — 1.4%
Deutsche Telekom AG		0.8			1,204,297		21,774
Other Securities		0.6					18,306
							40,080
Hong Kong — 0.9%
Other Securities		0.9					27,504

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Israel — 0.7%
Other Securities		0.7	%			$	19,301
Italy — 0.8%
Enel SpA		0.5			1,513,300		15,151
Other Securities		0.3					7,826
							22,977
Japan — 9.3%
Japan Tobacco Inc		0.6			919,200		18,688
KDDI Corp		0.8			828,700		23,703
Nintendo Co Ltd		0.6			29,000		16,481
Nippon Telegraph & Telephone Corp		1.0			1,206,700		28,526
Okinawa Cellular Telephone Co		0.0			3,311		138
Oracle Corp Japan		0.2			44,654		4,955
SoftBank Corp		0.8			1,958,300		24,123
Other Securities		5.3					154,810
							271,424
Netherlands — 1.5%
Koninklijke Ahold Delhaize NV		1.1			1,093,213		31,372
Other Securities		0.4					12,463
							43,835
New Zealand — 0.4%
Other Securities ‡		0.4					10,389
Norway — 0.7%
Other Securities		0.7					20,758
Portugal — 0.0%
Other Securities		0.0					938
Singapore — 0.9%
Other Securities		0.9					26,967
Spain — 1.0%
Iberdrola SA		0.5			1,127,050		15,430
Other Securities		0.5					15,195
							30,625
Sweden — 0.9%
Other Securities		0.9					26,866
Switzerland — 4.4%
Novartis AG		0.9			287,233		26,103
Roche Holding AG		1.4			121,074		39,995
Other Securities		2.1					61,708
							127,806

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   33

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Global Managed Volatility Fund (Continued)

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
United Kingdom — 3.8%
GlaxoSmithKline PLC		0.9	%		1,455,383	$	26,619
Other Securities ‡		2.9					84,860
							111,479
United States — 62.0%
Allstate Corp/The		0.8			218,900		22,404
Amdocs Ltd		1.0			449,470		29,580
Amgen Inc		0.8			110,740		24,589
AT&T Inc		1.3			1,291,361		37,127
Berkshire Hathaway Inc, Cl B *		0.8			99,400		22,754
Bristol-Myers Squibb Co		0.8			374,111		23,345
Church & Dwight Co Inc		0.6			182,208		15,992
Cisco Systems Inc		0.9			613,332		26,385
Clorox Co/The		0.6			85,054		17,263
Colgate-Palmolive Co		0.6			189,074		16,192
Comcast Corp, Cl A		1.0			595,741		29,930
Costco Wholesale Corp		0.8			56,376		22,086
Dollar General Corp		0.6			79,177		17,306
eBay Inc		0.7			423,300		21,347
Exelon Corp		0.7			504,000		20,699
F5 Networks Inc *		0.6			101,961		16,600
General Mills Inc		0.9			446,568		27,160
Gilead Sciences Inc		0.6			279,665		16,967
Intel Corp		0.8			463,300		22,401
International Business Machines Corp		0.7			165,800		20,480
J M Smucker Co/The		0.6			154,913		18,156
Johnson & Johnson		1.5			307,401		44,475
Kellogg Co		0.5			231,352		14,786
Kimberly-Clark Corp		0.6			116,573		16,240
Kroger Co/The		1.1			984,727		32,496
Lockheed Martin Corp		0.6			49,010		17,889
Merck & Co Inc		1.3			485,703		39,046
Newmont Corp		0.9			439,203		25,834
Northrop Grumman Corp		0.7			63,734		19,264
Oracle Corp		1.5			756,020		43,637
Pfizer Inc		1.1			838,519		32,124
Public Service Enterprise Group Inc		0.5			262,900		15,322
Target Corp		2.0			318,782		57,231
Universal Health Services Inc, Cl B		0.6			135,970		17,755
Verizon Communications Inc		1.8			878,128		53,048
Walmart Inc		1.1			207,367		31,684
Other Securities ‡(B)		30.0					884,417
							1,814,011
Total Common Stock (Cost $2,622,211) ($ Thousands)							2,828,480

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
PREFERRED STOCK — 0.3%
Germany — 0.3%
Other Securities (C)		0.3	%			$	9,376
Total Preferred Stock (Cost $8,443) ($ Thousands)							9,376
RIGHT — 0.0%
Switzerland — 0.0%
Other Securities*		0.0					–
Total Right (Cost $–) ($ Thousands)							–
AFFILIATED PARTNERSHIP — 0.4%
SEI Liquidity Fund, L.P. 0.070% **†(D)		0.4			10,248,915		10,253
Total Affiliated Partnership (Cost $10,253) ($ Thousands)							10,253
CASH EQUIVALENT — 1.7%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†		1.7			50,179,553		50,180
Total Cash Equivalent (Cost $50,180) ($ Thousands)							50,180
Total Investments in Securities – 99.1% (Cost $2,691,087) ($ Thousands)						$	2,898,289

  34   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

A list of the open futures contracts held by the Fund at November 30, 2020, is as follows:

Type of Contract	Number of Contracts Long		Expiration Date		Notional Amount (Thousands)		Value (Thousands)		Unrealized Appreciation (Depreciation) (Thousands)
Euro STOXX 50		102		Dec-2020	$	3,881	$	4,277	$	325
FTSE 100 Index		22		Dec-2020		1,735		1,848		84
Hang Seng Index		3		Jan-2021		515		511		(4	)
S&P 500 Index E-MINI		137		Dec-2020		23,666		24,819		1,153
SPI 200 Index		9		Dec-2020		1,073		1,083		1
TOPIX Index		18		Dec-2020		2,907		3,030		110
					$	33,777	$	35,568	$	1,669

A list of the open forward foreign currency contracts held by the Fund at November 30, 2020, is as follows:

Counterparty	Settlement Date			Currency to Deliver (Thousands)				Currency to Receive (Thousands)		Unrealized Appreciation (Depreciation) (Thousands)
Brown Brothers Harriman		12/14/20	USD		131		NZD		189	$	2
Brown Brothers Harriman		12/14/20	USD		69		NZD		99		–
Brown Brothers Harriman		12/14/20	USD		228		DKK		1,426		2
Brown Brothers Harriman		12/14/20	USD		214		SGD		288		1
Brown Brothers Harriman		12/14/20	USD		95		SGD		127		–
Brown Brothers Harriman		12/14/20	USD		218		SEK		1,876		1
Brown Brothers Harriman		12/14/20	USD		98		SEK		836		(1	)
Brown Brothers Harriman		12/14/20	USD		213		HKD		1,650		–
Brown Brothers Harriman		12/14/20	USD		163		HKD		1,266		–
Brown Brothers Harriman		12/14/20	USD		313		NOK		2,814		4
Brown Brothers Harriman		12/14/20	USD		97		NOK		852		–
Brown Brothers Harriman		12/14/20	USD		609		AUD		834		6
Brown Brothers Harriman		12/14/20	USD		401		AUD		541		(2	)
Brown Brothers Harriman		12/14/20	USD		1,401		CAD		1,829		11
Brown Brothers Harriman		12/14/20	USD		1,464		GBP		1,103		9
Brown Brothers Harriman		12/14/20	USD		1,072		CHF		977		8
Brown Brothers Harriman		12/14/20	USD		634		CHF		573		(1	)
Brown Brothers Harriman		12/14/20	USD		2,716		EUR		2,286		20
Brown Brothers Harriman		12/14/20	USD		1,472		JPY		153,972		5
Brown Brothers Harriman		12/14/20	USD		3,228		JPY		335,172		(13	)
Brown Brothers Harriman		12/14/20	NZD		9,045	��	USD		6,215		(142	)
Brown Brothers Harriman		12/14/20	SGD		17,498		USD		12,964		(99	)
Brown Brothers Harriman		12/14/20	GBP		438		USD		586		1
Brown Brothers Harriman		12/14/20	GBP		40,450		USD		53,400		(613	)
Brown Brothers Harriman		12/14/20	AUD		47,218		USD		34,299		(496	)
Brown Brothers Harriman		12/14/20	DKK		59,013		USD		9,324		(165	)
Brown Brothers Harriman		12/14/20	CHF		61,061		USD		66,542		(957	)
Brown Brothers Harriman		12/14/20	CAD		78,776		USD		60,262		(540	)
Brown Brothers Harriman		12/14/20	EUR		94,782		USD		111,520		(1,912	)
Brown Brothers Harriman		12/14/20	NOK		100,852		USD		11,103		(288	)
Brown Brothers Harriman		12/14/20	HKD		1,603		USD		207		–
Brown Brothers Harriman		12/14/20	HKD		118,481		USD		15,282		(2	)
Brown Brothers Harriman		12/14/20	SEK		265		USD		31		–
Brown Brothers Harriman		12/14/20	SEK		128,558		USD		14,852		(192	)
Brown Brothers Harriman		12/14/20	JPY		76,420		USD		734		1

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   35

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Global Managed Volatility Fund (Concluded)

Counterparty	Settlement Date			Currency to Deliver (Thousands)			Currency to Receive (Thousands)		Unrealized Appreciation (Depreciation) (Thousands)
Brown Brothers Harriman		12/14/20	JPY		15,214,554	USD		144,084	$	(1,890)
									$	(7,242)

Percentages are based on a Net Assets of $2,925,166 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

‡ Real Estate Investment Trust.

† Investment in Affiliated Security (see Note 6).

(A) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (see Note 12). The total market value of securities on loan at November 30, 2020, was $9,761 ($ Thousands).

(B) Security is a Master Limited Partnership. At November 30, 2020, such securities amounted to $31 ($ Thousands), or 0.00% of Net Assets of the Fund (see Note 2).

(C) There is currently no rate available.

(D) This security was purchased with cash collateral held from securities on loan (see Note 12). The total market value of such securities as of November 30, 2020 was $10,253 ($ Thousands).

AUD — Australian Dollar

CAD — Canadian Dollar

CHF — Swiss Franc

Cl — Class

DKK — Danish Krone

EUR — Euro

FTSE— Financial Times Stock Exchange

GBP — British Pound Sterling

HKD — Hong Kong Dollar

JPY — Japanese Yen

NOK — Norwegian Krone

NZD — New Zealand Dollar

PLC — Public Limited Company

S&P — Standard & Poor’s

SEK — Swedish Krona

SGD — Singapore Dollar

SPI — Share Price Index

TOPIX — Tokyo Price Index

USD — United States Dollar

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total  ($)
Common Stock		2,828,304		176		–		2,828,480
Preferred Stock		9,376		–		–		9,376
Right		–		–		–		–
Affiliated Partnership		–		10,253		–		10,253
Cash Equivalent		50,180		–		–		50,180
Total Investments in Securities		2,887,860		10,429		–		2,898,289
Other Financial Instruments	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total  ($)
Futures Contracts*
Unrealized Appreciation		1,673		–		–		1,673
Unrealized Depreciation		(4)		–		–		(4)
Forwards Contracts*
Unrealized Appreciation		–		71		–		71
Unrealized Depreciation		–		(7,313)		–		(7,313)
Total Other Financial Instruments		1,669		(7,242)		–		(5,573)

* Futures contracts and forwards contracts are valued at the unrealized appreciation (depreciation) on the instrument.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Liquidity Fund, L.P.	$ —	$61,071	$(50,818)	$ —	$ —	$10,253	10,248,915	$ —	$ —
SEI Daily Income Trust, Government Fund, ClF	36,578	168,442	(154,840)	—	—	50,180	50,179,553	3	—
Totals	$36,578	$229,513	$ (205,658)	$ —	$ —	$60,433		$ 3	$ —

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  36   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

World Equity Ex-US Fund

^†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK — 95.9%
Australia — 4.8%
BlueScope Steel Ltd		0.5	%		4,013,344	$	50,569
Qantas Airways Ltd		0.6			13,878,374		55,017
Rio Tinto Ltd		0.2			297,980		22,264
Other Securities		3.5					337,197
							465,047
Austria — 0.0%
Other Securities		0.0					2,482
Belgium — 0.6%
Other Securities		0.6					54,068
Brazil — 0.7%
Other Securities		0.7					71,751
Canada — 2.3%
Other Securities		2.3					220,023
China — 2.0%
Alibaba Group Holding Ltd ADR *		0.2			54,209		14,277
Other Securities		1.8					180,138
							194,415
Denmark — 3.7%
Danske Bank A/S		0.5			3,044,600		50,323
Orsted A/S		0.5			271,576		49,056
Vestas Wind Systems A/S		0.7			330,006		67,645
Other Securities		2.0					190,473
							357,497

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Finland — 0.9%
Other Securities (A)		0.9	%			$	85,354
France — 5.5%
Cie de Saint-Gobain		0.6			1,217,514		57,993
L’Oreal SA		0.5			138,822		50,947
Sanofi		0.9			868,773		88,033
Other Securities		3.5					339,701
							536,674
Germany — 5.6%
Deutsche Boerse AG		0.7			412,164		68,901
Rheinmetall AG		0.7			720,131		64,228
SAP SE		0.7			577,469		70,445
Other Securities		3.5					339,476
							543,050
Greece — 0.0%
Other Securities		0.0					4,465
Hong Kong — 7.3%
Alibaba Group Holding Ltd *		0.9			2,494,080		84,096
Alibaba Health Information Technology Ltd *		0.0			1,650,000		4,853
Hong Kong Exchanges & Clearing Ltd		0.7			1,295,432		64,400
Shanghai Pharmaceuticals Holding Co Ltd, Cl H		0.6			33,263,300		56,293
Other Securities		5.1					498,758
							708,400
India — 1.7%
Tech Mahindra Ltd		0.6			4,730,873		55,956
Other Securities		1.1					104,971
							160,927
Ireland — 1.8%
ICON PLC *		0.8			412,160		80,322
Other Securities		1.0					90,227
							170,549
Israel — 0.7%
Other Securities (A)		0.7					65,452
Italy — 1.4%
Other Securities		1.4					138,847
Japan — 14.6%
Hitachi Ltd		0.7			1,749,000		66,522
Kobayashi Pharmaceutical Co Ltd		0.5			414,374		49,872
Mitsubishi UFJ Financial Group Inc		0.6			14,265,000		61,356
Nintendo Co Ltd		0.7			118,300		67,230

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   37

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

World Equity Ex-US Fund (Continued)

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Japan (continued)
Nippon Telegraph & Telephone Corp		0.5	%		2,113,200	$	49,955
PeptiDream Inc *		0.5			1,001,200		51,080
Recruit Holdings Co Ltd		0.6			1,316,200		55,538
SBI Holdings Inc/Japan		0.5			1,857,915		50,423
Sony Corp		0.6			585,400		54,478
Other Securities		9.4					906,970
							1,413,424
Malaysia — 0.0%
Other Securities		0.0					998
Mexico — 0.0%
Other Securities		0.0					2,675
Netherlands — 5.8%
AerCap Holdings NV *		0.5			1,343,580		49,390
ASML Holding NV		0.8			187,897		81,780
NN Group NV		1.1			2,602,176		105,988
Prosus NV		0.7			591,814		64,308
Other Securities		2.7					260,274
							561,740
New Zealand — 0.1%
Other Securities		0.1					10,561
Norway — 1.3%
DNB ASA *		0.7			3,705,459		67,423
Other Securities		0.6					60,961
							128,384
Poland — 0.1%
Other Securities		0.1					5,857
Portugal — 0.4%
Other Securities		0.4					37,970
Russia — 1.0%
Mobile TeleSystems PJSC ADR		0.5			5,740,066		49,537
Other Securities		0.5					44,027
							93,564
Saudi Arabia — 0.0%
Other Securities		0.0					1,938
Singapore — 0.1%
Other Securities		0.1					10,624

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
South Africa — 0.1%
Other Securities		0.1	%			$	12,060
South Korea — 6.7%
Hana Financial Group Inc		0.7			2,086,412		63,825
NAVER Corp		0.7			272,034		68,221
Samsung Electronics Co Ltd		2.3			3,663,763		220,842
SK Hynix Inc		0.9			1,036,695		91,345
Other Securities		2.1					203,074
							647,307
Spain — 1.5%
Siemens Gamesa Renewable Energy SA		0.6			1,691,505		60,560
Other Securities		0.9					81,132
							141,692
Sweden — 1.8%
Other Securities		1.8					176,507
Switzerland — 5.0%
Idorsia Ltd *(A)		0.5			1,647,203		49,200
LafargeHolcim Ltd		0.7			1,279,460		67,358
Novartis AG		0.9			946,442		86,009
Roche Holding AG		1.5			433,747		143,281
Other Securities		1.4					136,731
							482,579
Taiwan — 3.1%
Taiwan Semiconductor Manufacturing Co Ltd		1.1			6,427,000		108,347
Other Securities		2.0					194,765
							303,112
Thailand — 0.4%
Other Securities		0.4					39,484
Turkey — 0.3%
Other Securities		0.3					28,629
United Kingdom — 9.4%
Aptiv PLC		0.5			421,574		50,041
Atlassian Corp PLC, Cl A *		0.6			268,158		60,349
ConvaTec Group PLC		0.5			19,040,479		52,568
Rio Tinto PLC		0.3			402,588		25,981
Rio Tinto PLC ADR (A)		0.0			68,668		4,461
Other Securities (A)		7.5					721,181
							914,581
United States — 5.2%
Accenture PLC, Cl A		0.5			209,369		52,152

  38   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
United States (continued)
Check Point Software Technologies Ltd *		0.6	%		462,233	$	54,395
IHS Markit Ltd		0.6			608,689		60,540
MercadoLibre Inc *		0.8			50,111		77,839
Nomad Foods Ltd *		0.7			2,677,134		64,653
Other Securities (A)		2.0					193,317
							502,896
Total Common Stock
(Cost $6,979,617) ($ Thousands)							9,295,583
PREFERRED STOCK — 0.2%
Brazil — 0.1%
Other Securities (B)		0.1					6,040
Germany — 0.1%
Other Securities (B)		0.1					14,497
Spain — 0.0%
Other Securities (B)		0.0					2,531
Total Preferred Stock
(Cost $27,002) ($ Thousands)							23,068
WARRANT — 0.0%
Switzerland — 0.0%

Description		Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
PREFERRED STOCK (continued)
Spain (continued)
Other Securities*			0.0	%			$	10
Total Warrant	��
(Cost $–) ($ Thousands)								10
RIGHTS — 0.0%
Taiwan — 0.0%
Other Securities* (C)			0.0					–
Total Rights
(Cost $–) ($ Thousands)								–
AFFILIATED PARTNERSHIP — 1.0%
SEI Liquidity Fund, L.P. 0.070% **†(D)			1.0			93,112,091		93,131
Total Affiliated Partnership
(Cost $93,114) ($ Thousands)								93,131
CASH EQUIVALENT — 1.0%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†			1.0			94,391,178		94,391
Total Cash Equivalent
(Cost $94,391) ($ Thousands)								94,391
Total Investments in Securities — 98.1%
(Cost $7,194,124) ($ Thousands)							$	9,506,183

A list of the open futures contracts held by the Fund at November 30, 2020 is as follows:

Type of Contract	Number of Contracts Long		Expiration Date		Notional Amount (Thousands)		Value         (Thousands)		Unrealized Appreciation (Depreciation) (Thousands)
Euro STOXX 50		824		Dec-2020	$	33,198	$	34,548	$	952
FTSE 100 Index		155		Dec-2020		12,585		13,021		239
Hang Seng Index		38		Jan-2021		6,525		6,478		(46	)
S&P TSX 60 Index		74		Dec-2020		11,146		11,684		525
SPI 200 Index		69		Dec-2020		7,921		8,299		291
TOPIX Index		166		Dec-2020		26,519		27,947		1,127
					$	97,894	$	101,977	$	3,088

A list of the open forward foreign currency contracts held by the Fund at November 30, 2020 is as follows:

Counterparty	Settlement Date			Currency to Deliver (Thousands)			Currency to Receive (Thousands)		Unrealized Appreciation             (Depreciation) (Thousands)
Bank of America		03/15/21	USD		1,396	EUR		1,178	$	16
Barclays PLC		01/14/21	KRW		27,624,370	USD		24,945		7
Barclays PLC		03/15/21	GBP		7,972	USD		10,675		24
Citigroup		01/05/21	USD		7,364	BRL		39,296		(70	)

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   39

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

World Equity Ex-US Fund (Concluded)

Counterparty	Settlement Date			Currency to Deliver (Thousands)			Currency to Receive (Thousands)		Unrealized Appreciation             (Depreciation) (Thousands)
Citigroup		01/14/21	KRW		2,635,226	USD		2,377	$	(2)
Citigroup		03/15/21	USD		50,857	CHF		46,034		178
Citigroup		03/15/21	USD		63,493	CNY		420,580		(85)
Citigroup		03/15/21	EUR		125,929	USD		150,129		(900)
Credit Suisse First Boston		03/15/21	USD		39,719	SEK		338,056		(99)
Goldman Sachs		01/22/21	RUB		493,981	USD		6,481		54
Goldman Sachs		03/15/21	USD		90,739	CAD		117,967		349
Goldman Sachs		03/16/21	USD		8,579	MXN		174,153		(32)
HSBC		03/15/21	ILS		82,232	USD		24,773		(145)
JPMorgan Chase Bank		03/15/21	USD		9,924	EUR		8,405		157
JPMorgan Chase Bank		03/15/21	USD		25,077	CNY		166,232		(16)
Morgan Stanley		02/18/21	GBP		26,639	USD		35,158		(429)
Morgan Stanley		02/18/21	USD		35,416	GBP		26,639		170
Morgan Stanley		03/15/21	HKD		152,846	USD		19,721		1
RBS		03/15/21	USD		9,649	EUR		8,149		124
RBS		03/15/21	EUR		61,960	USD		72,281		(2,029)
Standard Bank		01/15/21	USD		6,891	INR		510,750		(16)
									$	(2,743)

Percentages are based on a Net Assets of $9,686,845 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

† Investment in Affiliated Security (see Note 6).

(A) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (see Note 12). The total market value of securities on loan at November 30, 2020, was $88,627 ($ Thousands).

(B) There is currently no rate available.

(C) Level 3 security in accordance with fair value hierarchy.

(D) This security was purchased with cash collateral held from securities on loan (see Note 12). The total market value of such securities as of November 30, 2020 was $93,131 ($ Thousands).

ADR — American Depositary Receipt

BRL — Brazilian Real

CAD — Canadian Dollar

CHF — Swiss Franc

Cl — Class

CNY — Chinese Yuan Onshore

EUR — Euro

FTSE— Financial Times and Stock Exchange

GBP — British Pound Sterling

HKD — Hong Kong Dollar

INR — Indian Rupee

ILS — Israeli New Sheckels

KRW — Korean Won

L.P. — Limited Partnership

Ltd. — Limited

MXN — Mexican Peso

PJSC — Public Joint-Stock Company

PLC — Public Limited Company

RUB — Russian Ruble

S&P— Standard & Poor’s

SEK — Swedish Krona

SPI — Share Price Index

TOPIX- Tokyo Price Index

TSX — Toronto Stock Exchange

USD — U.S. Dollar

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

  40   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)			Level 2 ($)		Level 3 ($)(1)		Total ($)
Common Stock		9,257,298			38,285		–		9,295,583
Preferred Stock		20,537			2,531		–		23,068
Warrant		–			10		–		10
Rights		–			–		–^		–
Affiliated Partnership		–			93,131		–		93,131
Cash Equivalent		94,391			–		–		94,391
Total Investments in Securities		9,372,226			133,957		–		9,506,183
Other Financial Instruments	Level 1 ($)			Level 2 ($)		Level 3 ($)		Total ($)
Futures Contracts*
Unrealized Appreciation		3,134			–		–		3,134
Unrealized Depreciation		(46	)		–		–		(46	)

Other Financial Instruments	Level 1 ($)		Level 2 ($)			Level 3 ($)		Total ($)
Forwards Contracts*
Unrealized Appreciation		–		1,080			–		1,080
Unrealized Depreciation		–		(3,823	)		–		(3,823	)
Total Other Financial Instruments		3,088		(2,743	)		–		345

(1) A reconciliation of Level 3 investments is presented when the Fund has a significant amount of Level 3 investments at the beginning and/or end of the period in relation to net assets. Management has concluded that Level 3 investments are not material in relation to net assets.

^ Securities market value less than $500.

* Futures contracts and forward contracts are valued at the unrealized appreciation (depreciation) on the instrument.

For the period ended November 30, 2020, there were no transfers in our out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Liquidity Fund, L.P.	$73,249	$ 495,049	$ (475,128)	$(13)	$(26)	$ 93,131	93,112,091	$ 1,216	$ —
SEI Daily Income Trust, Government Fund, Cl F	156,154	460,187	(521,950)	—	—	94,391	94,391,178	6	—
Totals	$229,403	$ 955,236	$ (997,078)	$(13)	$(26)	$ 187,522		$ 1,222	$ —

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   41

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Screened World Equity Ex-US Fund

^†Percentages are based on total investments.

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 94.5%
Australia — 4.6%
BHP Group Ltd		0.4	%		16,495	$	463
Fortescue Metals Group Ltd		0.8			66,393		892
Qantas Airways Ltd *		0.9			241,331		957
Rio Tinto Ltd		0.4			6,011		449
Other Securities		2.1					2,441
							5,202
Austria — 0.3%
Other Securities		0.3					283
Belgium — 0.6%
Other Securities		0.6					645
Brazil — 0.3%
Other Securities		0.3					277
Canada — 2.4%
Lundin Mining Corp		0.7			98,300		787
Other Securities		1.7					1,874
							2,661
China — 3.3%
Alibaba Group Holding Ltd ADR *		0.5			2,160		569
Midea Group Co Ltd, Cl A		0.6			50,300		664
Other Securities		2.2					2,492
							3,725
Denmark — 3.8%
Danske Bank A/S *		0.8			51,934		858
Novo Nordisk A/S, Cl B		0.9			15,787		1,065
Other Securities		2.1					2,326
							4,249

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK (continued)
Finland — 1.3%
Other Securities		1.3	%			$	1,430
France — 4.2%
Cie de Saint-Gobain *		0.9			20,787		990
Sanofi		1.0			11,056		1,120
Other Securities		2.3					2,572
							4,682
Germany — 5.4%
Muenchener Rueckversicherungs- Gesellschaft AG in Muenchen		0.8			3,124		873
Rheinmetall AG		1.0			12,280		1,095
Other Securities		3.6					4,152
							6,120
Greece — 0.2%
Other Securities		0.2					177
Hong Kong — 7.8%
Alibaba Group Holding Ltd *		1.4			45,400		1,531
Alibaba Health Information Technology Ltd *		0.2			52,000		153
Industrial & Commercial Bank of China Ltd, Cl H		0.6			1,059,000		672
Shanghai Pharmaceuticals Holding Co Ltd, Cl H		0.7			423,500		717
Tencent Holdings Ltd		0.8			11,900		864
Topsports International Holdings		0.7			507,000		755
Xinyi Glass Holdings Ltd		0.8			394,000		885
Other Securities		2.6					3,234
							8,811
India — 2.6%
Tech Mahindra Ltd		0.9			84,476		999
Other Securities		1.7					1,885
							2,884
Indonesia — 0.1%
Other Securities		0.1					65
Ireland — 1.4%
ICON PLC *		0.6			3,669		715
Other Securities		0.8					889
							1,604
Israel — 0.5%
Other Securities		0.5					563
Italy — 0.9%
Other Securities		0.9					1,014

  42   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK (continued)
Japan — 11.1%
Alps Alpine Co Ltd		0.6	%		53,900	$	676
Daiwa Securities Group Inc		0.7			189,700		826
Fujitsu Ltd		0.7			5,500		765
Hitachi Ltd		1.0			30,000		1,141
KDDI Corp		0.6			24,500		701
Nintendo Co Ltd		0.9			1,800		1,023
Nippon Telegraph & Telephone Corp		0.6			28,040		663
Okinawa Cellular Telephone Co		0.0			700		29
Takeda Pharmaceutical Co Ltd		0.7			22,600		812
Other Securities		5.3					5,837
							12,473
Malaysia — 0.6%
Other Securities		0.6					694
Mexico — 0.0%
Other Securities		0.0					16
Netherlands — 5.8%
Koninklijke Ahold Delhaize NV		0.6			24,230		695
Koninklijke Philips NV *		1.4			29,952		1,554
NN Group NV		1.3			36,856		1,501
Other Securities		2.5					2,718
							6,468
New Zealand — 0.3%
Other Securities		0.3					344
Norway — 1.2%
DNB ASA *		1.2			71,364		1,299
Other Securities		0.0					60
							1,359
Peru — 0.0%
Other Securities		0.0					9
Philippines — 0.0%
Other Securities		0.0					24
Poland — 0.4%
Other Securities		0.4					391
Portugal — 0.0%
Other Securities		0.0					28
Qatar — 0.1%
Other Securities		0.1					146

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK (continued)
Russia — 1.1%
Mobile TeleSystems PJSC ADR		0.7	%		97,849	$	845
Other Securities		0.4					436
							1,281
Singapore — 0.9%
Other Securities		0.9					953
South Africa — 0.3%
Other Securities		0.3					351
South Korea — 6.4%
Coway Co Ltd *		0.8			14,795		928
Hana Financial Group Inc		0.8			30,934		946
Samsung Electronics Co Ltd		1.7			31,109		1,875
Samsung Electronics Co Ltd GDR		1.2			885		1,340
Other Securities		1.9					2,135
							7,224
Spain — 0.9%
Other Securities		0.9					1,017
Sweden — 3.6%
Swedish Match AB		0.6			8,970		725
Volvo AB, Cl B *		0.6			29,287		667
Other Securities		2.4					2,676
							4,068
Switzerland — 5.9%
LafargeHolcim Ltd		1.0			22,022		1,159
Novartis AG		1.6			19,873		1,806
Roche Holding AG		0.9			3,245		1,072
Other Securities		2.4					2,648
							6,685
Taiwan — 2.3%
Hon Hai Precision Industry Co Ltd		0.6			242,000		699
Taiwan Semiconductor Manufacturing Co Ltd		1.0			66,000		1,112
Other Securities		0.7					800
							2,611
Thailand — 0.6%
Siam Commercial Bank PCL/The		0.6			246,500		697
							697
Turkey — 1.0%
Other Securities		1.0					1,166
United Kingdom — 7.7%
BHP Group PLC		0.2			8,900		202
Kingfisher PLC *		0.6			181,771		664

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   43

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Screened World Equity Ex-US Fund (Concluded)

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK (continued)
United Kingdom (continued)
Rio Tinto PLC		0.2	%		2,953	$	191
Rio Tinto PLC ADR		0.3			5,359		348
Smiths Group PLC		0.9			51,883		1,011
Other Securities		5.5					6,250
							8,666
United States — 4.6%
Check Point Software Technologies Ltd*		1.3			11,984		1,410
MercadoLibre Inc*		0.8			601		933
Nomad Foods Ltd *		1.0			45,991		1,111
Other Securities		1.5					1,764
							5,218
Total Common Stock (Cost $82,701) ($ Thousands)							106,281
PREFERRED STOCK — 0.3%
Brazil — 0.1%
Other Securities (A)		0.1					49

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
PREFERRED STOCK (continued)
Germany — 0.2%
Other Securities (A)		0.2	%			$	242
Total Preferred Stock (Cost $346) ($ Thousands)							291
WARRANT — 0.0%
Switzerland — 0.0%
Other Securities*		0.0					–
Total Warrant (Cost $–) ($ Thousands)							–
CASH EQUIVALENT — 2.2%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†		2.2			2,521,893		2,522
Total Cash Equivalent (Cost $2,522) ($ Thousands)							2,522
Total Investments in Securities — 97.0% (Cost $85,569)($ Thousands)						$	109,094

A list of the open futures contracts held by the Fund at November 30, 2020, is as follows:

Type of Contract	Number of Contracts Long		Expiration Date		Notional Amount (Thousands)		Value           (Thousands)		Unrealized Appreciation (Depreciation) (Thousands)
Euro STOXX 50		22		Dec-2020	$	889	$	922	$	23
FTSE 100 Index		4		Dec-2020		339		336		(4)
Hang Seng Index		1		Jan-2021		173		170		(2)
S&P TSX 60 Index		2		Dec-2020		316		316		(1)
SPI 200 Index		2		Dec-2020		238		241		–
TOPIX Index		5		Dec-2020		841		842		(3)
					$	2,796	$	2,827	$	13

A list of the open forward foreign currency contracts held by the Fund at November 30, 2020, is as follows:

Counterparty	Settlement Date			Currency to Deliver (Thousands)			Currency to Receive (Thousands)		Unrealized Appreciation                      (Depreciation) (Thousands)
Brown Brothers Harriman		02/18/21	GBP		530	USD		699	$	(9)
Brown Brothers Harriman		02/18/21	USD		704	GBP		530		4
									$	(5)

Percentages are based on a Net Assets of $112,427 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

^†  Investment in Affiliated Security (see Note 6).

(A) There is currently no rate available.

ADR — American Depositary Receipt

Cl — Class

FTSE— Financial Times Stock Exchange

GBP — British Pound Sterling

GDR — Global Depositary Receipt

Ltd. — Limited

  44   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

PJSC – Public Joint-Stock Company

PLC – Public Limited Company

S&P– Standard & Poor’s

SPI – Share Price Index

TOPIX - Tokyo Price Index

TSX – Toronto Stock Exchange

USD – U.S. Dollar

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)			Level 2 ($)			Level 3 ($)		Total ($)
Common Stock		103,834			2,447			–		106,281
Preferred Stock		291			–			–		291
Warrant		–			–			–		–
Cash Equivalent		2,522			–			–		2,522
Total Investments in Securities		106,647			2,447			–		109,094
Other Financial Instruments	Level 1 ($)			Level 2 ($)			Level 3 ($)		Total ($)
Futures Contracts*
Unrealized Appreciation		23			–			–		23
Unrealized Depreciation		(10	)		–			–		(10	)
Forward Contracts*
Unrealized Appreciation		–			4			–		4
Unrealized Depreciation		–			(9	)		–		(9	)
Total Other Financial Instruments		13			(5	)		–		8

* Futures contracts and Forward contracts are valued at the unrealized appreciation (depreciation) on the instrument.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in the Notes to Financial Statements.

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Daily Income Trust, Government Fund, Cl F	$ 1,456	$ 5,501	$ (4,435)	$ –	$ –	$ 2,522	2,521,893	$ –	$ –

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   45

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

World Select Equity Fund

†Percentages are based on total investments.

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK — 92.1%
Argentina — 0.0%
Other Securities		0.0%			$	117
Australia — 0.4%
Other Securities		0.4				1,765
Austria — 0.2%
Other Securities		0.2				1,242
Belgium — 0.1%
Other Securities		0.1				544
Brazil — 0.3%
Other Securities		0.3				1,692
Canada — 1.5%
Alimentation Couche-Tard Inc, Cl B		0.5		68,244		2,271
Other Securities		1.0				5,363
						7,634
China — 2.3%
Alibaba Group Holding Ltd ADR *		0.8		14,573		3,838
Other Securities		1.5				7,764
						11,602
Croatia — 0.1%
Other Securities		0.1				524

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Czech Republic — 0.2%
Other Securities		0.2%				$	734
Denmark — 0.2%
Other Securities		0.2					1,161
Egypt — 0.0%
Other Securities		0.0					203
Estonia — 0.1%
Other Securities		0.1					222
Finland — 0.7%
Other Securities		0.7					3,447
France — 3.8%
BNP Paribas SA		0.6			56,694		2,914
Other Securities		3.2					16,660
							19,574
Germany — 3.3%
Allianz SE		0.8			16,438		3,887
BASF SE		0.4			28,870		2,118
HeidelbergCement AG		0.4			30,845		2,197
Other Securities		1.7					8,856
							17,058
Greece — 0.1%
Other Securities		0.1					570
Hong Kong — 2.1%
Tencent Holdings Ltd		0.5			33,990		2,468
Other Securities		1.6					8,096
							10,564
Hungary — 0.3%
Other Securities		0.3					1,555
India — 1.0%
Other Securities		1.0	��				5,283
Indonesia — 0.1%
Other Securities		0.1					335

  46   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Ireland — 0.0%
Other Securities		0.0	%			$	43
Italy — 1.2%
Enel SpA		0.5			233,177		2,335
Intesa Sanpaolo SpA		0.4			976,543		2,249
Other Securities		0.3					1,662
							6,246
Japan — 11.9%
Honda Motor Co Ltd		0.4			77,565		2,136
Nippon Telegraph & Telephone Corp		0.8			164,808		3,896
Sony Corp		0.5			27,000		2,513
Other Securities ‡		10.2					52,585
							61,130
Luxembourg — 0.4%
Other Securities		0.4					1,933
Malaysia — 0.3%
Other Securities		0.3					1,427
Mexico — 0.1%
Other Securities		0.1					440
Netherlands — 1.6%
CNH Industrial NV		0.5			205,500		2,236
Koninklijke Ahold Delhaize NV		0.5			95,762		2,748
Other Securities		0.6					3,402
							8,386
Nigeria — 0.0%
Other Securities		0.0					126
Norway — 0.1%
Other Securities		0.1					230
Pakistan — 0.0%
Other Securities		0.0					179
Philippines — 0.1%
Other Securities		0.1					622

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Poland — 1.4%
Other Securities		1.4	%			$	6,962
Portugal — 0.0%
Other Securities		0.0					204
Qatar — 0.0%
Other Securities		0.0					60
Romania — 0.3%
Other Securities		0.3					1,756
Russia — 1.0%
Other Securities		1.0					5,293
Saudi Arabia — 0.2%
Other Securities		0.2					845
Singapore — 0.1%
Other Securities		0.1					647
Slovenia — 0.4%
Other Securities		0.4					1,948
South Africa — 0.5%
Other Securities		0.5					2,619
South Korea — 2.4%
Samsung Electronics Co Ltd		0.4			34,913		2,104
Samsung Electronics Co Ltd GDR		0.6			2,121		3,196
Other Securities		1.4					6,982
							12,282
Spain — 0.5%
Other Securities		0.5					2,715
Sweden — 0.8%
Other Securities		0.8					3,917

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   47

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

World Select Equity Fund (Continued)

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Switzerland — 0.8%
Other Securities		0.8%			$	4,283
Taiwan — 2.2%
Taiwan Semiconductor Manufacturing Co Ltd		0.6		192,020		3,237
Other Securities		1.6				7,857
						11,094
Thailand — 0.1%
Other Securities		0.1				415
Turkey — 0.3%
Other Securities		0.3				1,526
United Arab Emirates — 0.0%
Other Securities		0.0				180
United Kingdom — 4.8%
Adient PLC *		0.5		75,030		2,348
Other Securities		4.3				22,182
						24,530
United States — 43.8%
Communication Services — 2.3%
Alphabet Inc, Cl A *		0.5		1,416		2,484
AT&T Inc		0.6		112,584		3,237
Other Securities		1.2				6,340
						12,061
Consumer Discretionary — 8.7%
Advance Auto Parts Inc		0.5		17,700		2,614
AutoZone Inc *		0.5		2,236		2,544
Lowe’s Cos Inc		0.6		19,459		3,032
Target Corp		0.5		13,102		2,352
Other Securities		6.6				33,978
						44,520
Consumer Staples — 2.5%
Sysco Corp		0.4		31,601		2,253
Other Securities		2.1				10,717
						12,970

Description	Percentage of Net Assets (%)		Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Energy — 1.2%
Chevron Corp		0.5%		28,600	$	2,494
Other Securities		0.7				3,682
						6,176
Financials — 8.4%
Aflac Inc		0.5		62,094		2,728
Ally Financial Inc		0.9		151,930		4,505
American Express Co		0.5		20,219		2,398
American International Group Inc		0.6		74,000		2,845
Equitable Holdings Inc		0.6		113,239		2,874
Moody’s Corp		0.6		11,501		3,247
Morgan Stanley		0.5		40,893		2,528
Progressive Corp/The		0.7		38,669		3,368
US Bancorp		0.5		62,185		2,687
Wells Fargo & Co		0.5		84,000		2,297
Other Securities ‡		2.5				13,819
						43,296
Health Care — 4.9%
AmerisourceBergen Corp, Cl A		0.5		24,400		2,516
Johnson & Johnson		0.5		16,065		2,324
Merck & Co Inc		0.7		43,603		3,505
UnitedHealth Group Inc		0.8		12,418		4,177
Other Securities		2.4				12,499
						25,021
Industrials — 5.4%
Fluor Corp		0.5		138,670		2,395
Parker-Hannifin Corp		0.4		8,283		2,214
Union Pacific Corp		0.5		13,059		2,665
Other Securities		4.0				20,283
						27,557
Information Technology — 6.9%
DXC Technology Co		0.7		155,810		3,414
Intel Corp		0.7		68,880		3,330
International Business Machines Corp		0.7		29,032		3,586
Mastercard Inc, Cl A		0.5		6,963		2,343
Microsoft Corp		0.7		16,641		3,562
Oracle Corp		0.4		39,681		2,290
Other Securities		3.2				16,925
						35,450
Materials — 2.6%
Nucor Corp		0.5		45,000		2,417

  48   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Materials (continued)
Packaging Corp of America		0.5	%		19,885	$	2,585
Other Securities		1.6					8,352
							13,354
Real Estate — 0.4%
Other Securities ‡		0.4					1,873
Utilities — 0.5%
Other Securities		0.5					2,644
							224,922
Total Common Stock (Cost $414,599) ($ Thousands)							472,786
PREFERRED STOCK — 0.4%
Brazil — 0.1%
Other Securities (A)		0.1					707
Germany — 0.2%
Other Securities (A)		0.2					921
Russia — 0.1%
Other Securities (A)		0.1					311

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
PREFERRED STOCK (continued)
South Korea — 0.0%
Samsung Electronics Co Ltd		0.0	%		437	$	24
Total Preferred Stock (Cost $2,155) ($ Thousands)							1,963
RIGHTS — 0.0%
Hong Kong — 0.0%
Other Securities		0.0					—
Spain — 0.0%
Other Securities		0.0					88
Taiwan — 0.0%
Other Securities		0.0					—
Total Rights (Cost $–) ($ Thousands)							88
CASH EQUIVALENT — 2.9%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†		2.9			14,730,889		14,731
Total Cash Equivalent (Cost $14,731) ($ Thousands)							14,731
Total Investments in Securities — 95.4% (Cost $431,485)($ Thousands)						$	489,568
				Contracts
PURCHASED OPTION* — 0.0%
Total Purchased Option (B) (Premiums Received $44) ($ Thousands)					25,190,520	$	7

A list of the open exchange traded options contracts held by the Fund at November 30, 2020 is as follows:

Description	Number of Contracts		Notional Amount (Thousands)†		Exercise Price		Expiration Date		Value (Thousands)
PURCHASED OPTION — 0.0%
Call Options
December 2020, AUD Call USD Put*		25,190,520	$	44		$0.74		12/1/2020	$	7
Total Purchased Option			$	44					$	7

^†  Represents cost.

A list of the open futures contracts held by the Fund at November 30, 2020 is as follows:

Type of Contract	Number of Contracts Long (Short)			Expiration Date		Notional Amount (Thousands)			Value (Thousands)			Unrealized Appreciation (Depreciation) (Thousands)
Euro STOXX 50		(2	)		Dec-2020	$	(84	)	$	(84	)	$	–
Hang Seng Index		19			Jan-2021		3,262			3,239			(23	)

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   49

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

World Select Equity Fund (Continued)

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Notional Amount (Thousands)			Value (Thousands)			Unrealized Appreciation (Depreciation) (Thousands)
MSCI Emerging Markets		(409)		Dec-2020	$	(22,797	)	$	(24,587	)	$	(1,790	)
MSCI Singapore Index		41		Jan-2021		1,004			982			(23	)
OMX Stockholm 30		26		Dec-2020		582			582			(3	)
S&P 500 Index E-MINI		331		Dec-2020		55,573			59,964			4,391
S&P TSX 60 Index		62		Dec-2020		9,096			9,790			541
SPI 200 Index		55		Dec-2020		5,941			6,615			574
TOPIX Index		(152)		Dec-2020		(23,145	)		(25,590	)		(2,102	)
					$	29,432		$	30,911		$	1,565

A list of the open forward foreign currency contracts held by the Fund at November 30, 2020 is as follows:

Counterparty	Settlement Date			Currency to Deliver (Thousands)			Currency to Receive (Thousands)		Unrealized Appreciation (Depreciation) (Thousands)
Brown Brothers Harriman		12/14/20	NZD		4	USD		3	$	—
Brown Brothers Harriman		12/14/20	NZD		37	USD		25		(1)
Brown Brothers Harriman		12/14/20	USD		427	NZD		622		10
Brown Brothers Harriman		12/14/20	USD		0	NZD		0		—
Brown Brothers Harriman		12/14/20	USD		807	NOK		7,324		20
Brown Brothers Harriman		12/14/20	USD		2	NOK		14		—
Brown Brothers Harriman		12/14/20	SGD		12	USD		9		—
Brown Brothers Harriman		12/14/20	SGD		852	USD		631		(5)
Brown Brothers Harriman		12/14/20	USD		1,503	SGD		2,028		11
Brown Brothers Harriman		12/14/20	USD		3	SGD		4		—
Brown Brothers Harriman		12/14/20	NOK		43	USD		5		—
Brown Brothers Harriman		12/14/20	NOK		2,395	USD		264		(7)
Brown Brothers Harriman		12/14/20	AUD		80	USD		59		—
Brown Brothers Harriman		12/14/20	AUD		2,796	USD		2,031		(29)
Brown Brothers Harriman		12/14/20	HKD		363	USD		47		—
Brown Brothers Harriman		12/14/20	HKD		3,001	USD		387		—
Brown Brothers Harriman		12/14/20	USD		3,602	DKK		22,784		62
Brown Brothers Harriman		12/14/20	USD		4,674	HKD		36,235		1
Brown Brothers Harriman		12/14/20	USD		134	HKD		1,040		—
Brown Brothers Harriman		12/14/20	USD		4,733	SEK		40,956		59
Brown Brothers Harriman		12/14/20	USD		95	SEK		809		—
Brown Brothers Harriman		12/14/20	CHF		83	USD		92		—
Brown Brothers Harriman		12/14/20	CHF		5,492	USD		5,988		(82)
Brown Brothers Harriman		12/14/20	DKK		9,016	USD		1,425		(24)
Brown Brothers Harriman		12/14/20	USD		9,694	AUD		13,340		136
Brown Brothers Harriman		12/14/20	USD		15	AUD		21		—
Brown Brothers Harriman		12/14/20	CAD		10,429	USD		7,978		(71)
Brown Brothers Harriman		12/14/20	USD		15,043	CAD		19,663		132
Brown Brothers Harriman		12/14/20	USD		15,174	CHF		13,920		212
Brown Brothers Harriman		12/14/20	USD		47	CHF		43		—
Brown Brothers Harriman		12/14/20	GBP		500	USD		669		2
Brown Brothers Harriman		12/14/20	GBP		15,094	USD		19,931		(224)
Brown Brothers Harriman		12/14/20	USD		20,209	GBP		15,305		227
Brown Brothers Harriman		12/14/20	USD		562	GBP		420		(1)

  50   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Counterparty	Settlement Date			Currency to Deliver (Thousands)			Currency to Receive (Thousands)		Unrealized Appreciation (Depreciation) (Thousands)
Brown Brothers Harriman		12/14/20	SEK		759	USD		89	$	—
Brown Brothers Harriman		12/14/20	SEK		25,968	USD		3,000		(38	)
Brown Brothers Harriman		12/14/20	USD		36,866	JPY		3,891,305		465
Brown Brothers Harriman		12/14/20	USD		1,740	JPY		180,908		(4	)
Brown Brothers Harriman		12/14/20	USD		48,732	EUR		41,385		794
Brown Brothers Harriman		12/14/20	EUR		50,439	USD		59,387		(973	)
Brown Brothers Harriman		12/14/20	JPY		165,918	USD		1,597		5
Brown Brothers Harriman		12/14/20	JPY		6,680,222	USD		63,275		(813	)
									$	(136	)

Percentages are based on Net Assets of $513,027 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

^‡  Real Estate Investment Trust.

^†  Investment in Affiliated Security (see Note 6).

(A) There is currently no rate available.

(B) Refer to table below for details on Options Contracts.

ADR — American Depositary Receipt

AUD — Australian Dollar

CAD — Canadian Dollar

CHF — Swiss Franc

Cl — Class

DKK — Danish Krone

EUR — Euro

GBP — British Pound Sterling

GDR — Global Depositary Receipt

HKD — Hong Kong Dollar

JPY — Japanese Yen

Ltd. — Limited

MSCI — Morgan Stanley Capital International

NOK — Norwegian Krone

NZD — New Zealand Dollar

OMX — Offset Market Exchange

PLC — Public Limited Company

S&P— Standard & Poor’s

SGD — Singapore Dollar

SEK — Swedish Krona

SPI — Share Price Index

TOPIX- Tokyo Price Index

TSX — Toronto Stock Exchange

USD — U.S. Dollar

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   51

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

World Select Equity Fund (Concluded)

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1     ($)		Level 2     ($)		Level 3     ($)		Total     ($)
Common Stock		471,899		862		25		472,786
Preferred Stock		1,963		–		–		1,963
Rights		88		–		–		88
Cash Equivalent		14,731		–		–		14,731
Total Investments in Securities		488,681		862		25		489,568
Other Financial Instruments	Level 1     ($)		Level 2     ($)		Level 3     ($)		Total     ($)
Purchased Option		7		–		–		7
Futures Contracts*
Unrealized Appreciation		5,506		–		–		5,506
Unrealized Depreciation		(3,941)		–		–		(3,941)
Forwards Contracts*
Unrealized Appreciation		–		2,136		–		2,136
Unrealized Depreciation		–		(2,272)		–		(2,272)
Total Other Financial Instruments		1,572		(136)		–		1,436

* Futures contracts and Forward contracts are valued at the unrealized appreciation (depreciation) on the instrument.

For the period ended November 30, 2020, there were transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from   Sales	Realized Gain/   (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value   11/30/2020	Shares	Income	Capital Gains
SEI Daily Income Trust, Government Fund, Cl F	$ 3,966	$ 53,805	$ (43,040)	$ -	$ -	$ 14,731	$ 14,730,889	$ 1	$ -

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  52   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Emerging Markets Equity Fund

^†Percentages are based on total investments.

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK — 95.0%
Argentina — 0.1%
Other Securities		0.1	%			$	1,037
Bangladesh — 0.4%
Other Securities		0.4					5,041
Brazil — 3.6%
Vale SA ADR, Cl B		0.5			377,135		5,491
Other Securities		3.1					38,345
							43,836
Canada — 1.2%
First Quantum Minerals Ltd		0.4			362,530		5,156
Other Securities		0.8					8,657
							13,813
Chile — 0.8%
Sociedad Quimica y Minera de Chile
SA ADR		0.4			112,867		5,313
Other Securities		0.4					4,850
							10,163
China — 15.0%
Alibaba Group Holding Ltd ADR *		3.3			150,610		39,665
Baidu Inc ADR *		0.4			34,194		4,753
China Construction Bank Corp, Cl H		1.4			21,954,000		17,218
China Mobile Ltd		0.3			598,500		3,582
China Mobile Ltd ADR		0.1			48,173		1,438
JD.com Inc ADR *		0.6			83,846		7,156
Kweichow Moutai Co Ltd, Cl A		0.5			23,975		6,243

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
China (continued)
NetEase Inc ADR		0.9	%		118,084	$	10,671
Ping An Insurance Group Co of China Ltd, Cl H		0.9			950,000		11,151
Shenzhou International Group Holdings Ltd		0.4			309,000		5,230
Wuhu Sanqi Interactive Entertainment Network Technology Group Co Ltd, Cl A		0.5			1,655,400		6,572
Wuliangye Yibin Co Ltd, Cl A		0.5			154,715		5,970
Other Securities		5.2					61,011
							180,660
Colombia — 0.3%
Other Securities		0.3					3,635
Czech Republic — 0.1%
Other Securities		0.1					1,574
Egypt — 0.4%
Other Securities		0.4					4,545
Germany — 0.3%
Other Securities		0.3					3,487
Ghana — 0.0%
Other Securities		0.0					170
Greece — 0.3%
Other Securities		0.3					3,660
Hong Kong — 10.7%
AIA Group Ltd		0.6			626,240		6,862
Anhui Conch Cement Co Ltd, Cl H		0.5			936,500		5,992
China Mengniu Dairy Co Ltd		0.4			1,003,000		5,072
Meituan, Cl B *		0.6			201,100		7,523
Tencent Holdings Ltd		2.2			368,581		26,767
Zhongsheng Group Holdings Ltd		0.6			937,000		7,034
Other Securities		5.8					70,139
							129,389

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   53

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Emerging Markets Equity Fund (Continued)

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Hungary — 0.4%
Other Securities		0.4	%			$	4,782
India — 7.5%
HDFC Bank Ltd ADR *		0.6			99,269		6,850
Infosys Ltd		0.4			298,524		4,465
Infosys Ltd ADR		0.3			284,206		4,326
Reliance Industries Ltd		0.4			196,922		5,122
WNS Holdings Ltd ADR *		0.6			100,877		7,103
Other Securities		5.2					63,030
							90,896
Indonesia — 2.2%
Other Securities		2.2					26,648
Ivory Coast — 0.1%
Other Securities		0.1					665
Kenya — 0.4%
Other Securities		0.4					5,308
Malaysia — 0.8%
Other Securities		0.8					10,023
Mauritius — 0.1%
Other Securities		0.1					608
Mexico — 1.7%
Wal-Mart de Mexico SAB de CV		0.4			1,850,551		4,884
Other Securities		1.3					16,161
							21,045
Morocco — 0.3%
Other Securities		0.3					3,827
Nigeria — 0.4%
Other Securities		0.4					4,346

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
Oman — 0.0%
Other Securities		0.0	%			$	370
Pakistan — 0.2%
Other Securities		0.2					2,438
Peru — 0.3%
Other Securities		0.3					3,927
Philippines — 3.6%
Ayala Corp		0.5			375,259		6,455
GT Capital Holdings Inc		0.4			423,650		5,130
Robinsons Land Corp		0.5			16,594,032		5,754
Other Securities		2.2					25,943
							43,282
Poland — 0.7%
Other Securities		0.7					8,833
Qatar — 0.2%
Other Securities		0.2					2,217
Romania — 0.2%
Other Securities		0.2					2,416
Russia — 3.1%
LUKOIL PJSC ADR		0.5			102,433		6,711
Sberbank of Russia PJSC ADR		0.6			506,098		6,734
Yandex NV, Cl A *		0.8			138,529		9,553
Other Securities		1.2					14,857
							37,855
Saudi Arabia — 0.7%
Other Securities		0.7					8,042
South Africa — 2.9%
Naspers Ltd, Cl N		0.9			55,448		11,210
Other Securities		2.0					23,898
							35,108

  54   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
South Korea — 10.1%
CJ ENM Co Ltd		0.6	%		59,851	$	7,205
KB Financial Group Inc		0.5			144,847		5,936
NCSoft Corp		0.5			8,369		6,126
Samsung Electronics Co Ltd		2.8			553,987		33,393
Other Securities		5.7					68,752
							121,412
Sri Lanka — 0.1%
Other Securities		0.1					1,547
Taiwan — 12.0%
Chailease Holding Co Ltd		0.5			1,089,448		5,963
Delta Electronics Inc		0.6			849,000		6,687
Silergy Corp		0.5			73,947		5,760
Taiwan Semiconductor Manufacturing Co Ltd		1.6			1,125,000		18,966
Taiwan Semiconductor Manufacturing Co Ltd ADR		3.7			459,588		44,589
Other Securities		5.1					62,290
							144,255
Thailand — 3.2%
Home Product Center PCL		0.6			14,760,445		7,173
Other Securities		2.6					30,794
							37,967
Turkey — 0.3%
Other Securities		0.3					3,233
United Arab Emirates — 1.0%
Emaar Properties PJSC		0.4			6,093,155		5,275
Other Securities		0.6					7,082
							12,357
United Kingdom — 4.2%
Halyk Savings Bank of Kazakhstan JSC GDR		0.6			580,564		6,880
NAC Kazatomprom JSC GDR		0.5			400,789		5,671
Vivo Energy PLC		0.6			6,310,306		7,127
Wizz Air Holdings PLC *		0.5			91,076		5,474
Other Securities		2.0					25,867
							51,019
United States — 2.6%
Credicorp Ltd		0.5			40,242		6,194
EPAM Systems Inc*		0.4			14,525		4,682

Description	Percentage of Net Assets (%)			Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
United States (continued)
MercadoLibre Inc*		0.7	%		5,481	$	8,514
Other Securities		1.0					11,334
							30,724
Vietnam — 2.5%
Military Commercial Joint Stock Bank*		0.5			6,531,653		5,744
Other Securities		2.0					24,076
							29,820
Total Common Stock (Cost $869,641) ($ Thousands)							1,145,980
PREFERRED STOCK — 1.5%
Brazil — 0.6%
Other Securities (A)		0.6					7,160
Chile — 0.1%
Other Securities (A)		0.1					484
Colombia — 0.2%
Other Securities (A)		0.2					2,614
South Korea — 0.6%
Samsung Electronics Co Ltd (A)		0.2			50,103		2,767
Other Securities (A)		0.4					4,814
							7,581
Total Preferred Stock (Cost $15,399) ($ Thousands)							17,839
				Number of Warrants
WARRANTS * — 1.3%
India — 0.1%
Other Securities		0.1					1,726
Luxembourg — 0.2%
Other Securities		0.2					1,860
Thailand — 0.0%
Other Securities		0.0					36
United States — 0.8%
FPT Corp, Expires 03/31/21		0.5			2,586,532		6,130

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   55

SUMMARY SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Emerging Markets Equity Fund (Concluded)

Description	Percentage of Net Assets (%)			Market Value   ($ Thousands)
WARRANTS (continued)
Other Securities		0.3	%	$	3,817
					9,947
Vietnam — 0.2%
Other Securities		0.2			1,836
Total Warrants (Cost $9,762) ($ Thousands)					15,405
EXCHANGE TRADED FUND — 0.3%
Other Securities		0.3			2,869
Total Exchange Traded Fund (Cost $2,330) ($ Thousands)					2,869
RIGHTS — 0.0%
Hong Kong — 0.0%
Other Securities		0.0			–
Taiwan — 0.0%
Other Securities		0.0			13
Total Rights (Cost $–) ($ Thousands)					13

Description	Percentage of Net Assets (%)		Shares		Market Value   ($ Thousands)
CASH EQUIVALENT — 0.6%
SEI Daily Income Trust, Government Fund, Cl F 0.010% **†		0.6%		7,552,959	$	7,553
Total Cash Equivalent (Cost $7,553) ($ Thousands)						7,553
Total Investments in Securities — 98.7% (Cost $904,685)($ Thousands)					$	1,189,659

A list of the open futures contracts held by the Fund at November 30, 2020 is as follows:

Type of Contract	Number of Contracts Long		Expiration Date		Notional Amount (Thousands)		Value (Thousands)		Unrealized Appreciation (Thousands)
MSCI Emerging Markets		144		Dec-2020	$	8,576	$	8,656	$	80

Percentages are based on a Net Assets of $1,205,925 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

† Investment in Affiliated Security (see Note 6).

(A) There is currently no rate available.

ADR — American Depositary Receipt

Cl — Class

GDR — Global Depositary Receipt

JSC — Joint-Stock Company

Ltd — Limited

MSCI — Morgan Stanley Capital International

PCL — Public Company Limited

PJSC — Public Joint-Stock Company

PLC — Public Limited Company

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all issues not required to be disclosed under the rules adopted by the U.S. Securities and Exchange Commission (“SEC”). In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1     ($)		Level 2     ($)		Level 3     ($)		Total     ($)
Common Stock		1,001,783		144,197		–		1,145,980
Preferred Stock		17,839		–		–		17,839
Warrants		11,807		3,598		–		15,405
Exchange Traded Fund		2,869		–		–		2,869
Rights		13		–		–		13
Cash Equivalent		7,553		–		–		7,553
Total Investments in Securities		1,041,864		147,795		–		1,189,659
Other Financial Instruments	Level 1     ($)		Level 2     ($)		Level 3     ($)		Total     ($)
Futures Contracts*
Unrealized Appreciation		80		–		–		80
Total Other Financial Instruments		80		–		–		80

*Futures contracts are valued at the unrealized appreciation on the instrument.

  56   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

For the period ended November 30, 2020, there were transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The following is a summary of Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain (Loss)	Change in Unrealized Appreciation (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Daily Income Trust, Government Fund, Cl F	$ 18,307	$ 89,417	$ (100,171)	$ —	$ —	$ 7,553	7,552,959	$ 1	$ —

Amounts designated as “—” are either $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   57

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund

^†Percentages based on total investments.

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES — 35.9%
Agency Mortgage-Backed Obligations — 4.5%
FHLMC
3.000%, 05/01/2050	$	1,629	$	1,748
1.500%, 11/01/2050		4,986		5,042
FHLMC ARM
3.950%, VAR ICE LIBOR USD 12 Month+2.470%, 03/01/2036		781		833
2.733%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+2.250%, 06/01/2035		581		612
FHLMC CMO, Ser 2020-5008, Cl IE, IO
2.000%, 09/25/2050		415		36
FHLMC CMO, Ser 2020-5052, Cl KI,
IO 4.000%, 12/25/2050		1,450		200
FHLMC CMO, Ser 2020-5052, Cl IO, IO
3.500%, 12/25/2050		1,094		146
FHLMC Multifamily Structured Pass-Through Certificates, Ser K018, Cl X1, IO
1.420%, 01/25/2022 (A)		12,815		116
FHLMC Multifamily Structured Pass-Through Certificates, Ser K028, Cl X1, IO
0.375%, 02/25/2023 (A)		141,989		667
FHLMC REMIC, Ser 2010-83, Cl BA
5.000%, 08/25/2040		195		218
FHLMC REMICS CMO, Ser 2007-3311, Cl FN
0.441%, VAR ICE LIBOR USD 1 Month+0.300%, 05/15/2037		340		341
FNMA
6.000%, 09/01/2039 to 04/01/2040		387		456
3.000%, 05/01/2022 to 02/01/2050		3,099		3,279

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
2.500%, 05/01/2050 to 06/01/2050	$	12,068	$	12,698
2.000%, 12/01/2050		3,300		3,459
FNMA ARM
3.530%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+2.193%, 10/01/2024		21		22
3.446%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+2.332%, 04/01/2034		350		369
3.288%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+2.141%, 10/01/2033		396		411
3.265%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+2.184%, 07/01/2036		587		618
3.186%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+2.205%, 05/01/2035		201		211
3.040%, VAR ICE LIBOR USD 12 Month+1.665%, 04/01/2033		115		116
2.958%, VAR ICE LIBOR USD 12 Month+1.565%, 05/01/2037		514		536
2.738%, VAR ICE LIBOR USD 12 Month+1.601%, 06/01/2035		119		120
2.734%, VAR ICE LIBOR USD 12 Month+1.557%, 06/01/2035		46		47
2.714%, VAR ICE LIBOR USD 12 Month+1.770%, 10/01/2033		198		199
2.675%, VAR ICE LIBOR USD 12 Month+1.800%, 05/01/2034		220		230
2.674%, VAR ICE LIBOR USD 12 Month+1.873%, 10/01/2033		175		183
2.614%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+2.247%, 08/01/2034		683		719
2.465%, VAR ICE LIBOR USD 12 Month+1.777%, 09/01/2034		454		457
2.187%, VAR ICE LIBOR USD 6 Month+1.580%, 07/01/2034		155		160
2.136%, VAR ICE LIBOR USD 12 Month+1.490%, 10/01/2035		420		435
1.798%, VAR ICE LIBOR USD 6 Month+1.433%, 03/01/2035		404		418
FNMA REMICS CMO, Ser 2011-63, Cl FG
0.600%, VAR ICE LIBOR USD 1 Month+0.450%, 07/25/2041		644		652
FNMA REMICS CMO, Ser 2012-112, Cl BI, IO
3.000%, 09/25/2031		4,316		235
FNMA REMICS CMO, Ser 2012-136, Cl DC
1.750%, 09/25/2041		314		316
FNMA REMICS CMO, Ser 2012-137, Cl UE
1.750%, 09/25/2041		266		270

  58   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FNMA REMICS CMO, Ser 2015-46, Cl BA
3.000%, 05/25/2041	$	211	$	215
FNMA STRIPS CMO, Ser 2011-406, Cl 6, IO
4.000%, 01/25/2041 (A)		459		60
FNMA, Ser 2017-M13, Cl FA
0.550%, VAR ICE LIBOR USD 1 Month+0.400%, 10/25/2024		166		165
GNMA ARM
1.828%, VAR ICE LIBOR USD 1 Month+1.693%, 12/20/2060		1,390		1,438
1.560%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+1.410%, 09/20/2060 to 11/20/2060		1,202		1,222
1.263%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+1.125%, 11/20/2060		1,307		1,325
1.199%, VAR ICE LIBOR USD 1 Month+1.040%, 12/20/2060		1,680		1,716
GNMA CMO, Ser 2020-167, Cl IW, IO
2.000%, 11/20/2050		415		45
GNMA CMO, Ser 2020-173, Cl MI, IO
2.500%, 11/20/2050		1,700		206
GNMA, Ser 2015-171, Cl IO, IO
0.853%, 11/16/2055 (A)		16,424		733
Mortgage-Linked Amortizing Notes, Ser 2012-1, Cl A10 2.060%,		484		493
01/15/2022
NCUA Guaranteed Notes CMO, Ser 2010-R3,Cl 2A
0.698%, VAR ICE LIBOR USD 1 Month+0.560%, 12/08/2020		224		224
				44,417
Non-Agency Mortgage-Backed Obligations — 31.4%
280 Park Avenue Mortgage Trust, Ser 2017-280P, Cl D
1.677%, VAR ICE LIBOR USD 1 Month+1.537%, 09/15/2034 (B)		3,000		2,932
Adjustable Rate Mortgage Trust, Ser 2005-1, Cl 5M1
1.200%, VAR ICE LIBOR USD 1 Month+1.050%, 05/25/2035		2,740		2,825
Alternative Loan Trust, Ser 2007-8CB, Cl A5
0.650%, VAR ICE LIBOR USD 1 Month+0.500%, 05/25/2037		3,025		1,559
American Home Mortgage Investment Trust, Ser 2005-2, Cl 4A1
1.743%, VAR ICE LIBOR USD 6 Month+1.500%, 09/25/2045		213		213
Angel Oak Mortgage Trust I LLC, Ser 2017-2, Cl A1
2.478%, 07/25/2047 (A)(B)		61		61

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Angel Oak Mortgage Trust I LLC, Ser 2018-3, Cl A1
3.649%, 09/25/2048 (A)(B)	$	84	$	85
Angel Oak Mortgage Trust I LLC, Ser 2019-1, Cl A1
3.920%, 11/25/2048 (A)(B)		1,257		1,288
Angel Oak Mortgage Trust I LLC, Ser 2019-2, Cl A1
3.628%, 03/25/2049 (A)(B)		263		269
Angel Oak Mortgage Trust I LLC, Ser 2019-4, Cl A1
2.993%, 07/26/2049 (A)(B)		163		166
Angel Oak Mortgage Trust LLC, Ser 2017-1,
Cl A1 2.810%, 01/25/2047 (A)(B)		2		2
Angel Oak Mortgage Trust LLC, Ser 2017-3,
Cl A1 2.708%, 11/25/2047 (A)(B)		27		27
Angel Oak Mortgage Trust, Ser 2020-1, Cl A1		63		63
2.466%, 12/25/2059 (A)(B)
Angel Oak Mortgage Trust, Ser 2020-3, Cl A1		361		364
1.691%, 04/25/2065 (A)(B)
Angel Oak Mortgage Trust, Ser 2020-4, Cl A1		169		170
1.469%, 06/25/2065 (A)(B)
Arroyo Mortgage Trust, Ser 2018-1, Cl A1		1,321		1,340
3.763%, 04/25/2048 (A)(B)
Arroyo Mortgage Trust, Ser 2019-1, Cl A1		1,478		1,530
3.805%, 01/25/2049 (A)(B)
Banc of America Funding, Ser 2005-F, Cl 4A1		52		48
2.935%, 09/20/2035 (A)
Banc of America Funding, Ser 2006-D, Cl 3A1		48		48
3.531%, 05/20/2036 (A)
Banc of America Funding, Ser 2006-I, Cl 1A1		1,989		2,021
2.909%, 12/20/2036 (A)
Banc of America Mortgage Trust, Ser 2003-K, Cl 2A1
3.086%, 12/25/2033 (A)		769		760
Banc of America Mortgage Trust, Ser 2004-A, Cl 2A2
3.904%, 02/25/2034 (A)		823		826
Banc of America Mortgage Trust, Ser 2004-D, Cl 2A1
3.790%, 05/25/2034 (A)		373		372
Banc of America Mortgage Trust, Ser 2004-L, Cl 1A1
4.393%, 01/25/2035 (A)		121		121
Banc of America Mortgage Trust, Ser 2005-A, Cl 2A1
3.672%, 02/25/2035 (A)		20		20
Bayview Commercial Asset Trust, Ser 2003-2, Cl A
1.020%, VAR ICE LIBOR USD 1 Month+0.870%, 12/25/2033 (B)		705		694

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   59

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Bayview Commercial Asset Trust, Ser 2004-1, Cl A
0.690%, VAR ICE LIBOR USD 1 Month+0.540%, 04/25/2034 (B)	$	3,421	$	3,410
Bayview Commercial Asset Trust, Ser 2004-3, Cl A1
0.705%, VAR ICE LIBOR USD 1 Month+0.555%, 01/25/2035 (B)		2,061		2,031
Bayview Commercial Asset Trust, Ser 2004-3, Cl M2
1.650%, VAR ICE LIBOR USD 1 Month+1.500%, 01/25/2035 (B)		161		161
Bayview Commercial Asset Trust, Ser 2005-1A, Cl A2
0.675%, VAR ICE LIBOR USD 1 Month+0.525%, 04/25/2035 (B)		1,191		1,135
Bayview Commercial Asset Trust, Ser 2005-3A, Cl M5
1.110%, VAR ICE LIBOR USD 1 Month+0.960%, 11/25/2035 (B)		718		643
Bayview Commercial Asset Trust, Ser 2006-2A, Cl A2
0.570%, VAR ICE LIBOR USD 1 Month+0.420%, 07/25/2036 (B)		1,253		1,168
Bayview Commercial Asset Trust, Ser 2006-2A, Cl A1
0.495%, VAR ICE LIBOR USD 1 Month+0.345%, 07/25/2036 (B)		731		679
Bayview Commercial Asset Trust, Ser 2006-4A, Cl A1
0.380%, VAR ICE LIBOR USD 1 Month+0.230%, 12/25/2036 (B)		516		482
Bayview Commercial Asset Trust, Ser 2007-1, Cl A2
0.420%, VAR ICE LIBOR USD 1 Month+0.270%, 03/25/2037 (B)		474		438
Bayview Commercial Asset Trust, Ser 2007-1, Cl A1
0.370%, VAR ICE LIBOR USD 1 Month+0.220%, 03/25/2037 (B)		1,263		1,176
BBCMS Mortgage Trust, Ser 2017-DELC, Cl B
1.171%, VAR ICE LIBOR USD 1 Month+1.030%, 08/15/2036 (B)		5,000		4,794
BBCMS Mortgage Trust, Ser 2018-TALL, Cl C
1.262%, VAR ICE LIBOR USD 1 Month+1.121%, 03/15/2037 (B)		3,000		2,805
Bear Stearns Alt-A Trust, Ser 2003-5, Cl 2A1		998		1,000
2.819%, 12/25/2033 (A)
Bear Stearns Alt-A Trust, Ser 2004-7, Cl 2A1		1,551		1,592
3.216%, 08/25/2034 (A)
Bear Stearns ARM Trust, Ser 2003-8, Cl 4A1		2,025		2,067
3.068%, 01/25/2034 (A)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Bear Stearns ARM Trust, Ser 2004-1, Cl 21A1	$	301	$	297
2.986%, 04/25/2034 (A)
Bear Stearns ARM Trust, Ser 2004-1, Cl 12A3		1,247		1,215
3.756%, 04/25/2034 (A)
Bear Stearns ARM Trust, Ser 2004-2, Cl 12A2		1,086		1,021
3.329%, 05/25/2034 (A)
Bear Stearns ARM Trust, Ser 2004-3, Cl 2A		1,059		1,021
3.272%, 07/25/2034 (A)
Bear Stearns ARM Trust, Ser 2004-5, Cl 2A		949		962
3.417%, 07/25/2034 (A)
Bear Stearns ARM Trust, Ser 2004-9, Cl 22A1		756		740
3.138%, 11/25/2034 (A)
Bear Stearns Commercial Mortgage Securities Trust, Ser 2007-PW17, Cl C
5.936%, 06/11/2050 (A)(B)		1,510		1,471
Bear Stearns Commercial Mortgage Securities Trust, Ser 2007-T26, Cl AM
5.513%, 01/12/2045 (A)		568		568
Bellemeade Re, Ser 2018-3A, Cl M1B
2.000%, VAR ICE LIBOR USD 1 Month+1.850%, 10/25/2028 (B)		1,637		1,638
Bellemeade Re, Ser 2019-2A, Cl M1B
1.600%, VAR ICE LIBOR USD 1 Month+1.450%, 04/25/2029 (B)		490		489
Bellemeade Re, Ser 2019-3A, Cl M1A
1.250%, VAR ICE LIBOR USD 1 Month+1.100%, 07/25/2029 (B)		606		605
Bellemeade Re, Ser 2019-3A, Cl M1B
1.750%, VAR ICE LIBOR USD 1 Month+1.600%, 07/25/2029 (B)		3,000		2,978
Bellemeade Re, Ser 2020-2A, Cl M1B
3.350%, VAR ICE LIBOR USD 1 Month+3.200%, 08/26/2030 (B)		1,700		1,719
Benchmark Mortgage Trust, Ser 2020-B19, Cl A5
1.850%, 09/15/2053		1,139		1,166
Benchmark Mortgage Trust, Ser 2020-B20, Cl A5
2.034%, 10/15/2053		1,128		1,172
Benchmark Mortgage Trust, Ser 2020-IG1, Cl A3
2.687%, 09/15/2043		1,811		1,983
BRAVO Residential Funding Trust, Ser 2019-1, Cl A1C
3.500%, 03/25/2058 (B)		1,724		1,779
BRAVO Residential Funding Trust, Ser 2019-NQM1, Cl A1
2.666%, 07/25/2059 (A)(B)		1,671		1,710
BRAVO Residential Funding Trust, Ser 2019-NQM2, Cl A1
2.748%, 11/25/2059 (A)(B)		1,383		1,410

  60   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
BRAVO Residential Funding Trust, Ser 2020-NQM1, Cl A1
1.449%, 05/25/2060 (A)(B)	$	253	$	254
Bunker Hill Loan Depositary Trust, Ser 2019-1, Cl A2
3.817%, 10/26/2048 (B)		196		204
Bunker Hill Loan Depositary Trust, Ser 2019-1, Cl A1
3.613%, 10/26/2048 (B)		1,697		1,767
Bunker Hill Loan Depositary Trust, Ser 2020-1, Cl A1
1.724%, 02/25/2055 (A)(B)		148		149
BWAY Mortgage Trust, Ser 2013-1515, Cl A1
2.809%, 03/10/2033 (B)		166		172
BX Commercial Mortgage Trust, Ser 2018-BIOA, Cl D
1.462%, VAR ICE LIBOR USD 1 Month+1.321%, 03/15/2037 (B)		2,000		1,988
BX Commercial Mortgage Trust, Ser 2018-BIOA, Cl C
1.262%, VAR ICE LIBOR USD 1 Month+1.121%, 03/15/2037 (B)		2,939		2,930
BX Commercial Mortgage Trust, Ser 2018-IND, Cl A
0.891%, VAR ICE LIBOR USD 1 Month+0.750%, 11/15/2035 (B)		120		120
BX Commercial Mortgage Trust, Ser 2018-IND, Cl D
1.441%, VAR ICE LIBOR USD 1 Month+1.300%, 11/15/2035 (B)		700		697
BX Commercial Mortgage Trust, Ser 2019-XL, Cl A
1.061%, VAR ICE LIBOR USD 1 Month+0.920%, 10/15/2036 (B)		285		285
BX Commercial Mortgage Trust, Ser 2019-XL, Cl E
1.941%, VAR ICE LIBOR USD 1 Month+1.800%, 10/15/2036 (B)		1,187		1,180
BX Commercial Mortgage Trust, Ser 2020-BXLP, Cl E
1.741%, VAR ICE LIBOR USD 1 Month+1.600%, 12/15/2036 (B)		1,998		1,964
BX Commercial Mortgage Trust, Ser VKNG, Cl C
1.541%, VAR ICE LIBOR USD 1 Month+1.400%, 10/15/2037 (B)		1,000		997
CAMB Commercial Mortgage Trust, Ser 2019-LIFE, Cl B
1.391%, VAR ICE LIBOR USD 1 Month+1.250%, 12/15/2037 (B)		3,000		2,996

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
CAMB Commercial Mortgage Trust, Ser 2019-LIFE, Cl E
2.291%, VAR ICE LIBOR USD 1 Month+2.150%, 12/15/2037 (B)	$	4,090	$	4,018
CGDBB Commercial Mortgage Trust, Ser 2017-BIOC, Cl D
1.741%, VAR ICE LIBOR USD 1 Month+1.600%, 07/15/2032 (B)		2,284		2,280
CGDBB Commercial Mortgage Trust, Ser 2017-BIOC, Cl B
1.111%, VAR ICE LIBOR USD 1 Month+0.970%, 07/15/2032 (B)		2,193		2,191
Chase Mortgage Finance Trust, Ser 2005-A1, Cl 2A3
3.320%, 12/25/2035 (A)		510		500
Chase Mortgage Finance Trust, Ser 2007-A1, Cl 1A3
3.260%, 02/25/2037 (A)		342		342
Chase Mortgage Finance Trust, Ser 2007-A1, Cl 7A1
3.385%, 02/25/2037 (A)		345		347
Chase Mortgage Finance Trust, Ser 2007-A2, Cl 2A3
2.999%, 06/25/2035 (A)		557		559
CHL Mortgage Pass-Through Trust, Ser 2003-46, Cl 2A1
2.803%, 01/19/2034 (A)		685		677
CHL Mortgage Pass-Through Trust, Ser 2004-11, Cl 2A1
2.605%, 07/25/2034 (A)		753		759
CHL Mortgage Pass-Through Trust, Ser 2004-8, Cl 2A1
4.500%, 06/25/2019		6		6
CHT Mortgage Trust, Ser 2017-CSMO, Cl B
1.541%, VAR ICE LIBOR USD 1 Month+1.400%, 11/15/2036 (B)		2,000		1,955
CIM Trust, Ser 2017-7, Cl A
3.000%, 04/25/2057 (A)(B)		473		483
Citigroup Commercial Mortgage Trust, Ser 2006-C4, Cl C
6.396%, 03/15/2049 (A)		1,087		1,091
Citigroup Commercial Mortgage Trust, Ser 2018-TBR, Cl A
0.971%, VAR ICE LIBOR USD 1 Month+0.830%, 12/15/2036 (B)		4,000		3,874
Citigroup Commercial Mortgage Trust, Ser 2019-SST2, Cl A
1.061%, VAR ICE LIBOR USD 1 Month+0.920%, 12/15/2036 (B)		700		700
Citigroup Mortgage Loan Trust, Ser 2005-2, Cl 1A2A
3.555%, 05/25/2035 (A)		628		644

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   61

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Citigroup Mortgage Loan Trust, Ser 2007-AR5, Cl 1A2A
3.835%, 04/25/2037 (A)	$	252	$	240
Citigroup Mortgage Loan Trust, Ser 2015-2, Cl 5A1
0.399%, VAR ICE LIBOR USD 1 Month+0.250%, 03/25/2047 (B)		232		234
Citigroup Mortgage Loan Trust, Ser 2019-IMC1, Cl A1
2.720%, 07/25/2049 (A)(B)		59		60
Cold Storage Trust, Ser ICE5, Cl D
2.241%, VAR ICE LIBOR USD 1 Month+2.100%, 11/15/2037 (B)		1,500		1,500
COLT Mortgage Loan Trust, Ser 2019-1, Cl A1
3.705%, 03/25/2049 (A)(B)		1,123		1,135
COLT Mortgage Loan Trust, Ser 2019-3, Cl A1
2.764%, 08/25/2049 (A)(B)		800		807
COLT Mortgage Loan Trust, Ser 2019-4, Cl A1
2.579%, 11/25/2049 (A)(B)		1,214		1,229
COLT Mortgage Loan Trust, Ser 2020-1R, Cl A1
1.255%, 09/25/2065 (A)(B)		302		302
COLT Mortgage Loan Trust, Ser 2020-2, Cl A1
1.853%, 03/25/2065 (A)(B)		1,029		1,042
COLT Mortgage Loan Trust, Ser 2020-2R, Cl A1
1.325%, 10/26/2065 (A)(B)		192		192
COLT Mortgage Loan Trust, Ser 2020-3, Cl A1
1.506%, 04/27/2065 (A)(B)		164		166
COMM Mortgage Trust, Ser 2013-300P, Cl E
4.540%, 08/10/2030 (A)(B)		800		749
COMM Mortgage Trust, Ser 2013-CR10, Cl XA, IO
0.817%, 08/10/2046 (A)		37,675		581
COMM Mortgage Trust, Ser 2014-CR14, Cl XA, IO
0.727%, 02/10/2047 (A)		25,904		413
COMM Mortgage Trust, Ser 2014-CR15, Cl A2
2.928%, 02/10/2047		391		391
COMM Mortgage Trust, Ser 2014-CR15, Cl D
4.891%, 02/10/2047 (A)(B)		700		703
Credit Suisse First Boston Mortgage Securities, Ser 2004-AR8, Cl 6A1
2.999%, 09/25/2034 (A)		152		152
Credit Suisse First Boston Mortgage Securities, Ser 2005-5, Cl 3A2
0.450%, VAR ICE LIBOR USD 1 Month+0.300%, 07/25/2035		1,197		1,158
CSFB Mortgage-Backed Pass-Through Certificates, Ser 2004-AR5, Cl 6A1
3.061%, 06/25/2034 (A)		1,914		1,982
CSMC Trust, Ser 2019-AFC1, Cl A1
2.573%, 07/25/2049 (B)		1,365		1,396

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
DBCG Mortgage Trust, Ser 2017-BBG, Cl C
1.141%, VAR ICE LIBOR USD 1 Month+1.000%, 06/15/2034 (B)	$	1,100	$	1,068
DBGS Mortgage Trust, Ser 2018-BIOD, Cl A
0.944%, VAR ICE LIBOR USD 1 Month+0.803%, 05/15/2035 (B)		2,784		2,784
DBUBS Mortgage Trust, Ser 2011-LC2A, Cl XA, IO
1.143%, 07/10/2044 (A)(B)		21,402		15
DBUBS Mortgage Trust, Ser 2011-LC3A, Cl A4
4.551%, 08/10/2044		1,139		1,147
Deephaven Residential Mortgage Trust, Ser 2017-1A, Cl A1
2.725%, 12/26/2046 (A)(B)		15		15
Deephaven Residential Mortgage Trust, Ser 2017-2A, Cl A1
2.453%, 06/25/2047 (A)(B)		47		47
Deephaven Residential Mortgage Trust, Ser 2017-3A, Cl A1
2.577%, 10/25/2047 (A)(B)		46		46
Deephaven Residential Mortgage Trust, Ser 2018-1A, Cl A1
2.976%, 12/25/2057 (A)(B)		85		85
Deephaven Residential Mortgage Trust, Ser 2018-3A, Cl A1
3.789%, 08/25/2058 (A)(B)		144		144
Deephaven Residential Mortgage Trust, Ser 2019-3A, Cl A1
2.964%, 07/25/2059 (A)(B)		132		134
Deephaven Residential Mortgage Trust, Ser 2019-4A, Cl A1
2.791%, 10/25/2059 (A)(B)		159		161
Deephaven Residential Mortgage Trust, Ser 2020-2, Cl A1
1.692%, 05/25/2065 (B)		217		218
Deutsche Mortgage Securities Re-REMIC Trust Certificates, Ser 2007-WM1, Cl A1
3.252%, 06/27/2037 (A)(B)		1,176		1,168
Eagle Re, Ser 2020-1, Cl M1A
1.050%, VAR ICE LIBOR USD 1 Month+0.900%, 01/25/2030 (B)		1,950		1,942
Ellington Financial Mortgage Trust, Ser 2019-1, Cl A1
2.934%, 06/25/2059 (A)(B)		504		519
Ellington Financial Mortgage Trust, Ser 2019-2, Cl A2
2.892%, 11/25/2059 (A)(B)		1,487		1,520
Ellington Financial Mortgage Trust, Ser 2020-1, Cl A1
2.006%, 05/25/2065 (A)(B)		1,108		1,124
Ellington Financial Mortgage Trust, Ser 2020-2, Cl A1
1.178%, 10/25/2065 (A)(B)		2,024		2,025

  62   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FHLMC STACR REMIC Trust, Ser 2020-DNA3, Cl M1
1.650%, VAR ICE LIBOR USD 1 Month+1.500%, 06/25/2050 (B)	$	1,630	$	1,632
FHLMC STACR REMIC Trust, Ser 2020-DNA4, Cl M1
1.650%, VAR ICE LIBOR USD 1 Month+1.500%, 08/25/2050 (B)		1,000		1,002
FHLMC STACR REMIC Trust, Ser 2020-DNA5, Cl M1
1.388%, VAR SOFR30A+1.300%, 10/25/2050 (B)		2,557		2,562
FHLMC STACR REMIC Trust, Ser 2020-HQA3, Cl M1
1.700%, VAR ICE LIBOR USD 1 Month+1.550%, 07/25/2050 (B)		2,950		2,954
FHLMC STACR REMIC Trust, Ser 2020-HQA4, Cl M1
1.450%, VAR ICE LIBOR USD 1 Month+1.300%, 09/25/2050 (B)		2,000		2,003
FHLMC STACR Trust, Ser 2019-FTR2, Cl M1
1.100%, VAR ICE LIBOR USD 1 Month+0.950%, 11/25/2048 (B)		1,266		1,264
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2014-HQ1, Cl M3
4.250%, VAR ICE LIBOR USD 1 Month+4.100%, 08/25/2024		532		538
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2014-HQ2, Cl M3
3.900%, VAR ICE LIBOR USD 1 Month+3.750%, 09/25/2024		1,597		1,642
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2014-HQ3, Cl M3
4.900%, VAR ICE LIBOR USD 1 Month+4.750%, 10/25/2024		460		466
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2015-DN1, Cl M3
4.300%, VAR ICE LIBOR USD 1 Month+4.150%, 01/25/2025		595		602
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2015-DNA3, Cl M3F
3.850%, VAR ICE LIBOR USD 1 Month+3.700%, 04/25/2028		929		957
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2015-DNA3, Cl M3
4.850%, VAR ICE LIBOR USD 1 Month+4.700%, 04/25/2028		744		774
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2015-HQ1, Cl M3
3.950%, VAR ICE LIBOR USD 1 Month+3.800%, 03/25/2025		71		71

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2015-HQ2, Cl M3
3.400%, VAR ICE LIBOR USD 1 Month+3.250%, 05/25/2025	$	1,831	$	1,866
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2018-DNA1, Cl M2
1.950%, VAR ICE LIBOR USD 1 Month+1.800%, 07/25/2030		867		851
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2018-HQA1, Cl M2
2.450%, VAR ICE LIBOR USD 1 Month+2.300%, 09/25/2030		1,187		1,174
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2020-HQA5, Cl M1
1.191%, VAR SOFR30A+1.100%, 11/25/2050 (B)		2,750		2,750
Flagstar Mortgage Trust, Ser 2018-5, Cl A7
4.000%, 09/25/2048 (A)(B)		13		13
FNMA Connecticut Avenue Securities, Ser 2014-C04, Cl 1M2
5.050%, VAR ICE LIBOR USD 1 Month+4.900%, 11/25/2024		2,535		2,588
FNMA Connecticut Avenue Securities, Ser 2016-C03, Cl 2M2
6.050%, VAR ICE LIBOR USD 1 Month+5.900%, 10/25/2028		252		269
FNMA Connecticut Avenue Securities, Ser 2016-C06, Cl 1M2
4.400%, VAR ICE LIBOR USD 1 Month+4.250%, 04/25/2029		1,158		1,212
FNMA Connecticut Avenue Securities, Ser 2018-C03, Cl 1M2
2.300%, VAR ICE LIBOR USD 1 Month+2.150%, 10/25/2030		759		752
FNMA Connecticut Avenue Securities, Ser 2018-C03, Cl 1EA2
1.000%, VAR ICE LIBOR USD 1 Month+0.850%, 10/25/2030		86		86
FNMA Connecticut Avenue Securities, Ser 2018-C05, Cl 1M2
2.500%, VAR ICE LIBOR USD 1 Month+2.350%, 01/25/2031		1,177		1,169
FREMF Mortgage Trust, Ser 2013-K28, Cl C
3.609%, 06/25/2046 (A)(B)		1,460		1,529
FREMF Mortgage Trust, Ser 2015-K718, Cl B
3.647%, 02/25/2048 (A)(B)		1,500		1,536
Galton Funding Mortgage Trust, Ser 2018-1, Cl A43
3.500%, 11/25/2057 (A)(B)		931		939
GCAT Trust, Ser 2020-NQM2, Cl A1
1.555%, 04/25/2065 (B)		94		94

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   63

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
GS Mortgage Securities Trust, Ser 2011-GC3, Cl X, IO
0.523%, 03/10/2044 (A)(B)	$	11,928	$	–
GS Mortgage Securities Trust, Ser 2012-ALOHA, Cl D
4.267%, 04/10/2034 (A)(B)		1,000		929
GS Mortgage Securities Trust, Ser 2017-500K, Cl D
1.441%, VAR ICE LIBOR USD 1 Month+1.300%, 07/15/2032 (B)		3,750		3,727
GS Mortgage Securities Trust, Ser 2017-500K, Cl A
0.841%, VAR ICE LIBOR USD 1 Month+0.700%, 07/15/2032 (B)		535		535
GS Mortgage Securities Trust, Ser 2020-DUNE, Cl B
1.491%, VAR ICE LIBOR USD 1 Month+1.350%, 12/15/2036 (B)		500		472
GS Mortgage Securities Trust, Ser 2020-DUNE, Cl E
2.641%, VAR ICE LIBOR USD 1 Month+2.500%, 12/15/2036 (B)		400		348
GSR Mortgage Loan Trust, Ser 2005-AR1, Cl 1A1
3.422%, 01/25/2035 (A)		79		76
GSR Mortgage Loan Trust, Ser 2005-AR2, Cl 1A2
3.862%, 04/25/2035 (A)		345		340
GSR Mortgage Loan Trust, Ser 2005-AR6, Cl 3A1
3.640%, 09/25/2035 (A)		222		225
HarborView Mortgage Loan Trust, Ser 2004-6, Cl 4A
3.034%, 08/19/2034 (A)		1,177		1,235
Hilton Orlando Trust, Ser 2018-ORL, Cl B
1.191%, VAR ICE LIBOR USD 1 Month+1.050%, 12/15/2034 (B)		2,900		2,766
Hilton USA Trust, Ser 2016-HHV, Cl D
4.333%, 11/05/2038 (A)(B)		3,910		3,874
HMH Trust, Ser 2017-NSS, Cl E
6.292%, 07/05/2031 (B)		3,613		3,026
Homeward Opportunities Fund I Trust, Ser 2018-1, Cl A1
3.766%, 06/25/2048 (A)(B)		754		759
Hudson’s Bay Simon JV Trust, Ser 2015-HBFL, Cl BFL
2.538%, VAR ICE LIBOR USD 1 Month+2.400%, 08/05/2034 (B)		2,000		1,572
Impac CMB Trust, Ser 2004-5, Cl 1A1
0.870%, VAR ICE LIBOR USD 1 Month+0.720%, 10/25/2034		1,400		1,449

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Impac CMB Trust, Ser 2004-6, Cl 1A2
0.930%, VAR ICE LIBOR USD 1 Month+0.780%, 10/25/2034	$	1,247	$	1,246
Impac Secured Assets Trust, Ser 2007-2, Cl 2A
0.650%, VAR ICE LIBOR USD 1 Month+0.500%, 04/25/2037		315		329
IndyMac INDA Mortgage Loan Trust, Ser 2007-AR3, Cl 1A1
3.575%, 07/25/2037 (A)		1,316		1,207
IndyMac INDX Mortgage Loan Trust, Ser 2007-FLX3, Cl A1
0.390%, VAR ICE LIBOR USD 1 Month+0.240%, 06/25/2037		479		465
JPMorgan Mortgage Trust, Ser 2018-7FRB, Cl A2
0.900%, VAR ICE LIBOR USD 1 Month+0.750%, 04/25/2046 (B)		179		179
JPMorgan Chase Commercial Mortgage Securities Trust, Ser 2006-CIBC15, Cl AM
5.855%, 06/12/2043 (A)		313		313
JPMorgan Chase Commercial Mortgage Securities Trust, Ser 2006-LDP8, Cl E
6.095%, 05/15/2045 (A)(B)		330		325
JPMorgan Chase Commercial Mortgage Securities Trust, Ser 2011-C3, Cl XA, IO
1.192%, 02/15/2046 (A)(B)		7,428		35
JPMorgan Chase Commercial Mortgage Securities Trust, Ser 2019-MFP, Cl B
1.301%, VAR ICE LIBOR USD 1 Month+1.160%, 07/15/2036 (B)		2,000		1,940
JPMorgan Chase Commercial Mortgage Securities Trust, Ser 2020-NNN, Cl CFL
1.441%, VAR ICE LIBOR USD 1 Month+1.300%, 01/16/2037 (B)		1,044		993
JPMorgan Chase Commercial Mortgage Securities Trust, Ser 2020-NNN, Cl XAFX, IO
2.032%, 01/16/2037 (A)(B)		12,500		830
JPMorgan Mortgage Trust, Ser 2005-A3, Cl 6A5
3.785%, 06/25/2035 (A)		473		477
JPMorgan Mortgage Trust, Ser 2005-A3, Cl 6A2
3.785%, 06/25/2035 (A)		468		471
JPMorgan Mortgage Trust, Ser 2005-A4, Cl 4A2
3.395%, 07/25/2035 (A)		883		868
JPMorgan Mortgage Trust, Ser 2006-A2, Cl 5A3
2.531%, 11/25/2033 (A)		173		178

  64   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
JPMorgan Mortgage Trust, Ser 2007-A1, Cl 1A1
3.252%, 07/25/2035 (A)	$	1,186	$	1,210
JPMorgan Mortgage Trust, Ser 2007-A1, Cl 4A2
2.959%, 07/25/2035 (A)		189		189
JPMorgan Mortgage Trust, Ser 2007-A1, Cl 5A2
3.197%, 07/25/2035 (A)		597		592
JPMorgan Mortgage Trust, Ser 2007-A4, Cl 1A1
3.580%, 06/25/2037 (A)		41		37
KNDL Mortgage Trust, Ser 2019-KNSQ, Cl A
0.941%, VAR ICE LIBOR USD 1 Month+0.800%, 05/15/2036 (B)		150		150
LSTAR Securities Investment, Ser 2019-4, Cl A1
1.655%, VAR ICE LIBOR USD 1 Month+1.500%, 05/01/2024 (B)		323		319
MASTR Adjustable Rate Mortgages Trust, Ser 2005-6, Cl 5A1
3.001%, 07/25/2035 (A)		31		30
MASTR Alternative Loan Trust, Ser 2003-5, Cl 4A1
5.500%, 07/25/2033		1,328		1,385
Mellon Residential Funding, Ser 1999-TBC3, Cl A2
2.610%, 10/20/2029 (A)		188		187
Merit, Ser HILL, Cl A
1.291%, VAR ICE LIBOR USD 1 Month+1.150%, 08/15/2037 (B)		385		386
Merrill Lynch Mortgage Investors Trust, Ser 2003-E, Cl A1
0.770%, VAR ICE LIBOR USD 1 Month+0.620%, 10/25/2028		641		639
Merrill Lynch Mortgage Investors Trust, Ser 2003-G, Cl A1
0.790%, VAR ICE LIBOR USD 1 Month+0.640%, 01/25/2029		481		468
Merrill Lynch Mortgage Investors Trust, Ser 2004-1, Cl 2A1
2.634%, 12/25/2034 (A)		867		869
Merrill Lynch Mortgage Investors Trust, Ser 2005-A, Cl A1
0.610%, VAR ICE LIBOR USD 1 Month+0.460%, 03/25/2030		1,054		1,036
Merrill Lynch Mortgage Investors Trust, Ser 2005-A2, Cl A5
3.790%, 02/25/2035 (A)		452		469
Merrill Lynch Mortgage Investors Trust, Ser 2005-A2, Cl A2
3.790%, 02/25/2035 (A)		2,202		2,287

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Merrill Lynch Mortgage Investors Trust, Ser 2005-A2, Cl A3
3.790%, 02/25/2035 (A)	$	609	$	630
Merrill Lynch Mortgage Investors Trust, Ser 2005-A4, Cl 1A
3.004%, 07/25/2035 (A)		303		204
Merrill Lynch Mortgage Investors Trust, Ser 2007-1, Cl 2A1
2.983%, 01/25/2037 (A)		2,236		2,132
MFA Trust, Ser 2017-RPL1, Cl A1
2.588%, 02/25/2057 (A)(B)		84		85
Morgan Stanley Capital I Trust, Ser 2006-T23, Cl D
6.372%, 08/12/2041 (A)(B)		892		895
Morgan Stanley Capital I Trust, Ser 2007-T25, Cl AJ
5.574%, 11/12/2049 (A)		2,303		1,849
Morgan Stanley Capital I Trust, Ser 2007-T27, Cl AJ
6.215%, 06/11/2042 (A)		1,553		1,555
Morgan Stanley Capital I Trust, Ser 2011-C1, Cl G
4.193%, 09/15/2047 (B)		1,000		933
Morgan Stanley Capital I Trust, Ser 2017-CLS, Cl D
1.541%, VAR ICE LIBOR USD 1 Month+1.400%, 11/15/2034 (B)		3,400		3,381
Morgan Stanley Capital I Trust, Ser 2018-BOP, Cl E
2.091%, VAR ICE LIBOR USD 1 Month+1.950%, 06/15/2035 (B)		3,316		2,985
Morgan Stanley Capital I Trust, Ser 2018-SUN, Cl A
1.041%, VAR ICE LIBOR USD 1 Month+0.900%, 07/15/2035 (B)		3,000		2,921
Morgan Stanley Mortgage Loan Trust, Ser 2004-10AR, Cl 1A
3.634%, 11/25/2034 (A)		709		709
Morgan Stanley Mortgage Loan Trust, Ser 2004-5AR, Cl 3A1
2.785%, 07/25/2034 (A)		444		457
Morgan Stanley Mortgage Loan Trust, Ser 2004-8AR, Cl 4A2
2.834%, 10/25/2034 (A)		1,362		1,403
MortgageIT Trust, Ser 2005-1, Cl 2A
1.399%, VAR ICE LIBOR USD 1 Month+1.250%, 02/25/2035		496		490
MRFC Mortgage Pass-Through Trust, Ser 2002-TBC2, Cl A
1.001%, VAR ICE LIBOR USD 1 Month+0.860%, 08/15/2032		379		370

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   65

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
MSCG Trust, Ser 2018-SELF, Cl D
1.791%, VAR ICE LIBOR USD 1 Month+1.650%, 10/15/2037 (B)	$	2,102	$	2,060
MSCG Trust, Ser 2018-SELF, Cl A
1.041%, VAR ICE LIBOR USD 1 Month+0.900%, 10/15/2037 (B)		245		245
MSSG Trust, Ser 2017-237P, Cl XB, IO
0.175%, 09/13/2039 (A)(B)		16,790		97
MSSG Trust, Ser 2017-237P, Cl D
3.865%, 09/13/2039 (A)(B)		2,457		2,427
MSSG Trust, Ser 2017-237P, Cl XA, IO
0.468%, 09/13/2039 (A)(B)		27,151		594
MTRO Commercial Mortgage Trust, Ser 2019-TECH, Cl A
1.041%, VAR ICE LIBOR USD 1 Month+0.900%, 12/15/2033 (B)		455		453
New Residential Mortgage Loan Trust, Ser 2017-3A, Cl A1
4.000%, 04/25/2057 (A)(B)		237		251
New Residential Mortgage Loan Trust, Ser 2017-5A, Cl A1
1.650%, VAR ICE LIBOR USD 1 Month+1.500%, 06/25/2057 (B)		1,758		1,778
New Residential Mortgage Loan Trust, Ser 2017-6A, Cl A1
4.000%, 08/27/2057 (A)(B)		604		652
New Residential Mortgage Loan Trust, Ser 2018-1A, Cl A1A
4.000%, 12/25/2057 (A)(B)		868		938
New Residential Mortgage Loan Trust, Ser 2018-4A, Cl A1S
0.900%, VAR ICE LIBOR USD 1 Month+0.750%, 01/25/2048 (B)		3,742		3,745
New Residential Mortgage Loan Trust, Ser 2020-NQM2, Cl A1
1.650%, 05/24/2060 (A)(B)		146		147
Nomura Asset Acceptance Alternative Loan Trust, Ser 2004-AR3, Cl M1
1.290%, VAR ICE LIBOR USD 1 Month+1.140%, 11/25/2034		1,331		1,385
Nomura Asset Acceptance Alternative Loan Trust, Ser 2004-AR4, Cl M1
1.250%, VAR ICE LIBOR USD 1 Month+1.100%, 12/25/2034		1,639		1,678
Nomura Resecuritization Trust, Ser 2015-1R, Cl 5A1
1.873%, VAR 12 Month Treas Avg+0.990%, 06/26/2046 (B)		1,408		1,400
Oaktown Re V, Ser 2020-2A, Cl M1A
2.550%, VAR ICE LIBOR USD 1 Month+2.400%, 10/25/2030 (B)		1,504		1,506

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
OBX Trust, Ser 2018-1, Cl A2
0.800%, VAR ICE LIBOR USD 1 Month+0.650%, 06/25/2057 (B)	$	1,610	$	1,602
OBX Trust, Ser 2018-EXP1, Cl 2A1
1.000%, VAR ICE LIBOR USD 1 Month+0.850%, 04/25/2048 (B)		2,016		2,027
OBX Trust, Ser 2018-EXP2, Cl 1A1
4.000%, 07/25/2058 (A)(B)		726		738
OBX Trust, Ser 2019-INV1, Cl A8
4.000%, 11/25/2048 (A)(B)		87		87
OBX Trust, Ser 2020-INV1, Cl A11
1.049%, VAR ICE LIBOR USD 1 Month+0.900%, 12/25/2049 (B)		1,335		1,336
One Market Plaza Trust, Ser 2017-1MKT, Cl D
4.146%, 02/10/2032 (B)		1,275		1,298
One Market Plaza Trust, Ser 2017-MKT, Cl C
4.016%, 02/10/2032 (B)		1,935		1,984
PHH Mortgage Trust, Ser 2008-CIM2, Cl 1A1
2.399%, VAR ICE LIBOR USD 1 Month+2.250%, 07/25/2038		654		631
Radnor Re, Ser 2019-2, Cl M1B
1.900%, VAR ICE LIBOR USD 1 Month+1.750%, 06/25/2029 (B)		1,000		997
Radnor Re, Ser 2020-1, Cl M1A
1.100%, VAR ICE LIBOR USD 1 Month+0.950%, 02/25/2030 (B)		1,503		1,498
RALI Trust, Ser 2007-QO3, Cl A1
0.310%, VAR ICE LIBOR USD 1 Month+0.160%, 03/25/2047		626		586
Residential Accredit Loans, Ser 2006-QO10, Cl A1
0.310%, VAR ICE LIBOR USD 1 Month+0.160%, 01/25/2037		2,372		2,262
Residential Asset Securitization Trust, Ser 2007-A8, Cl 3A1
6.204%, 08/25/2022 (A)		468		339
Residential Mortgage Loan Trust, Ser 2020-1, Cl A1
2.376%, 02/25/2024 (A)(B)		112		114
RESIMAC Premier, Ser 2020-1A, Cl A1B
1.274%, 02/07/2052 (B)		769		770
RMF Buyout Issuance Trust, Ser 2020-1, Cl A
2.158%, 02/25/2030 (A)(B)		139		140
Sequoia Mortgage Trust, Ser 2002-10, Cl 1A
0.947%, VAR ICE LIBOR USD 1 Month+0.800%, 10/20/2027		1,916		1,911
Sequoia Mortgage Trust, Ser 2002-9, Cl 1A
0.847%, VAR ICE LIBOR USD 1 Month+0.700%, 09/20/2032		588		565
Sequoia Mortgage Trust, Ser 2004-12, Cl A1
0.687%, VAR ICE LIBOR USD 1 Month+0.540%, 01/20/2035		2,216		2,133

  66   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Sequoia Mortgage Trust, Ser 2004-3, Cl A
0.758%, VAR ICE LIBOR USD 6 Month+0.500%, 05/20/2034	$	897	$	889
Sequoia Mortgage Trust, Ser 2004-5, Cl A1
1.921%, 06/20/2034 (A)		1,203		1,174
Sequoia Mortgage Trust, Ser 2013-1, Cl 1A1
1.450%, 02/25/2043 (A)		417		420
Spruce Hill Mortgage Loan Trust, Ser 2019-SH1, Cl A1
3.395%, 04/29/2049 (A)(B)		134		136
Starwood Mortgage Residential Trust, Ser 2018-IMC1, Cl A1
3.793%, 03/25/2048 (A)(B)		1,183		1,187
Starwood Mortgage Residential Trust, Ser 2020-1, Cl A1
2.275%, 02/25/2050 (A)(B)		195		199
Starwood Mortgage Residential Trust, Ser 2020-3, Cl A1
1.486%, 04/25/2065 (A)(B)		1,934		1,946
Structured Adjustable Rate Mortgage Loan Trust, Ser 2004-2, Cl 4A2
2.873%, 03/25/2034 (A)		894		867
Structured Adjustable Rate Mortgage Loan Trust, Ser 2004-9XS, Cl A
0.520%, VAR ICE LIBOR USD 1 Month+0.370%, 07/25/2034		2,719		2,746
Structured Adjustable Rate Mortgage Loan Trust, Ser 2005-7, Cl 1A3
3.042%, 04/25/2035 (A)		860		848
Structured Asset Mortgage Investments II Trust, Ser 2004-AR5, Cl 1A1
0.810%, VAR ICE LIBOR USD 1 Month+0.660%, 10/19/2034		884		887
Structured Asset Mortgage Investments II Trust, Ser 2004-AR8, Cl A1
0.830%, VAR ICE LIBOR USD 1 Month+0.680%, 05/19/2035		1,798		1,782
Thornburg Mortgage Securities Trust, Ser 2003-4, Cl A1
0.790%, VAR ICE LIBOR USD 1 Month+0.640%, 09/25/2043		705		704
Thornburg Mortgage Securities Trust, Ser 2004-3, Cl A
0.890%, VAR ICE LIBOR USD 1 Month+0.740%, 09/25/2034		2,656		2,622
Thornburg Mortgage Securities Trust, Ser 2005-1, Cl A3
3.626%, 04/25/2045 (A)		1,200		1,203
Thornburg Mortgage Securities Trust, Ser 2007-1, Cl A2B
1.636%, VAR ICE LIBOR USD 12 Month+1.300%, 03/25/2037		985		901

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Thornburg Mortgage Securities Trust, Ser 2007-4, Cl 3A1
2.526%, 09/25/2037 (A)	$	12	$	12
UBS Commercial Mortgage Trust, Ser 2012-C1, Cl XA, IO
2.246%, 05/10/2045 (A)(B)		9,320		163
Velocity Commercial Capital Loan Trust, Ser 2017-1, Cl AFL
1.400%, VAR ICE LIBOR USD 1 Month+1.250%, 05/25/2047 (B)		235		234
Velocity Commercial Capital Loan Trust, Ser 2020-1, Cl AFX
2.610%, 02/25/2050 (A)(B)		1,312		1,328
Verus Securitization Trust, Ser 2019-1, Cl A1
3.836%, 02/25/2059 (A)(B)		84		85
Verus Securitization Trust, Ser 2019-2, Cl A1
3.211%, 05/25/2059 (A)(B)		160		162
Verus Securitization Trust, Ser 2019-4, Cl A1
2.642%, 11/25/2059 (B)		158		161
Verus Securitization Trust, Ser 2019-INV3, Cl A1
2.692%, 11/25/2059 (A)(B)		133		136
Verus Securitization Trust, Ser 2020-1, Cl A1
2.417%, 01/25/2060 (B)		101		103
Verus Securitization Trust, Ser 2020-4, Cl A1
1.502%, 05/25/2065 (B)		93		94
Verus Securitization Trust, Ser 2020-5, Cl A1
1.218%, 05/25/2065 (B)		1,948		1,950
WaMu Commercial Mortgage Securities Trust, Ser 2007-SL2, Cl D
3.315%, 12/27/2049 (A)(B)		1,431		1,425
WaMu Mortgage Pass-Through Certificates, Ser 2003-AR10, Cl A7
2.570%, 10/25/2033 (A)		926		931
WaMu Mortgage Pass-Through Certificates, Ser 2003-AR7, Cl A7
2.713%, 08/25/2033 (A)		638		631
WaMu Mortgage Pass-Through Certificates, Ser 2003-AR9, Cl 1A6
2.801%, 09/25/2033 (A)		969		964
WaMu Mortgage Pass-Through Certificates, Ser 2004-AR1, Cl A
3.805%, 03/25/2034 (A)		2,985		3,093
WaMu Mortgage Pass-Through Certificates, Ser 2004-AR10, Cl A1B
0.570%, VAR ICE LIBOR USD 1 Month+0.420%, 07/25/2044		259		257
WaMu Mortgage Pass-Through Certificates, Ser 2004-AR11, Cl A
2.809%, 10/25/2034 (A)		745		753
WaMu Mortgage Pass-Through Certificates, Ser 2004-AR14, Cl A1
3.836%, 01/25/2035 (A)		1,477		1,506

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   67

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
WaMu Mortgage Pass-Through Certificates, Ser 2004-AR2, Cl A
2.143%, VAR 12 Month Treas Avg+1.400%, 04/25/2044	$	2,587	$	2,565
WaMu Mortgage Pass-Through Certificates, Ser 2004-AR9, Cl A7
2.988%, 08/25/2034 (A)		2,512		2,543
WaMu Mortgage Pass-Through Certificates, Ser 2004-CB2, Cl 1A
5.000%, 07/25/2034		225		234
WaMu Mortgage Pass-Through Certificates, Ser 2005-AR13, Cl A1A2
2.193%, VAR 12 Month Treas Avg+1.450%, 10/25/2045		212		216
WaMu Mortgage Pass-Through Certificates, Ser 2006-AR1, Cl 2A1A
1.813%, VAR 12 Month Treas Avg+1.070%, 01/25/2046		–		–
Wells Fargo Commercial Mortgage Trust, Ser 2012-LC5, Cl AS
3.539%, 10/15/2045		275		285
Wells Fargo Commercial Mortgage Trust, Ser 2020-SOP, Cl B
1.651%, VAR ICE LIBOR USD 1 Month+1.510%, 01/15/2035 (B)		2,000		1,920
Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-K, Cl 1A2
3.011%, 07/25/2034 (A)		263		260
Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-U, Cl A1
3.377%, 10/25/2034 (A)		1,265		1,254
				307,938
Total Mortgage-Backed Securities (Cost $355,997) ($ Thousands)				352,355
LOAN PARTICIPATIONS — 29.3%
Aerospace & Defense — 0.2%
Bleriot US Bidco Inc., Delayed Draw Term Loan, 1st Lien
5.058%, VAR LIBOR+4.750%, 10/31/2026		237		235
Bleriot US Bidco Inc., Initial Term Loan, 1st Lien
4.970%, VAR LIBOR+4.750%, 10/30/2026		1,514		1,503
				1,738

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Air Transport — 0.3%
American Airlines, Inc., 2017 Replacement Term Loan (New), 1st Lien
1.896%, VAR LIBOR+1.750%, 01/29/2027	$	1,125	$	944
Mileage Plus Holdings LLC (Mileage Plus Intellectual Property Assets, Ltd.), Initial Term Loan, 1st Lien
6.250%, VAR LIBOR+5.250%, 06/21/2027		905		932
SkyMiles IP Ltd. (Delta Air Lines, Inc.), Initial Term Loan, 1st Lien
4.750%, VAR LIBOR+3.750%, 10/20/2027 (C)		1,175		1,200
				3,076
Automotive — 0.4%
American Airlines, Inc., 218 Replacement Term Loan, 1st Lien
1.893%, 06/27/2025 (A)(C)		950		695
Clarios Global LP, Initial Dollar Term Loan, 1st Lien
3.646%, VAR LIBOR+3.500%, 04/30/2026		2,271		2,244
Truck Hero, Inc., Initial Term Loan, 1st Lien
3.896%, VAR LIBOR+3.750%, 04/22/2024		627		611
Wand Newco 3, Inc., Tranche B-1 1st Lien, Term Loan
3.146%, VAR LIBOR+3.000%, 02/05/2026		770		748
				4,298
Building & Development — 1.1%
Brookfield WEC Holdings Inc., Initial Term Loan (2020), 1st Lien
3.750%, VAR LIBOR+3.000%, 08/01/2025		2,302		2,278
Core & Main LP, Initial Term Loan, 1st Lien
3.750%, VAR LIBOR+2.750%, 08/01/2024		1,997		1,966
CP Atlas Buyer, Inc., Initial Tranche B-1 Term Loan, 1st Lien
5.250%, VAR LIBOR+4.500%, 11/19/2027 (C)		2,726		2,720
HD Supply Waterworks, Initial Term Loan, 1st Lien
3.750%, VAR LIBOR+2.750%, 08/01/2024		432		426
KREF Holdings X LLC, Initial Term Loan, 1st Lien
5.750%, VAR LIBOR+4.750%, 09/01/2027		1,247		1,240

  68   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
MI Windows and Doors, LLC, Initial Term Loan, 1st Lien
6.500%, VAR LIBOR+5.500%, 11/06/2026	$	1,983	$	1,981
				10,611
Business Equipment & Services — 2.2%
AI Aqua Merger Sub, Inc., 2017 Incremental Term Loan, 1st Lien
4.250%, VAR LIBOR+3.250%, 12/13/2023		739		724
Arches Buyer Inc., Initial Term Loan, 1st Lien
4.500%, VAR LIBOR+4.000%, 11/24/2027 (C)		1,840		1,833
AVSC Holding Corp., Initial Loan, 2nd Lien
8.250%, VAR LIBOR+7.250%, 09/01/2025		1,132		684
Change Healthcare Holdings, Inc. (fka Emdeon Inc.), Closing Date Term Loan, 1st Lien
3.500%, VAR LIBOR+2.500%, 03/01/2024		52		52
LegalZoom.com, Inc., 2018 Term Loan, 1st Lien
4.646%, VAR LIBOR+4.500%, 11/21/2024		2,905		2,867
Navicure, Inc., 2020 Incremental Term Loan, 1st Lien
4.750%, VAR LIBOR+4.000%, 10/22/2026		812		805
Packers Holdings, LLC, 2020 Incremental Term Loan
4.750%, VAR LIBOR+4.000%, 12/04/2024 (C)		1,395		1,388
Packers Holdings, LLC, Initial Term Loan, 1st Lien
4.000%, VAR LIBOR+3.000%, 12/04/2024		2,309		2,272
PAE Incorporated, Delayed Draw, 1st Lien, Term Loan
5.250%, 10/14/2027 (A)		153		152
PAE Incorporated, Initial Term Loan, 1st Lien
5.250%, VAR LIBOR+4.500%, 10/14/2027		757		752
Project Accelerate Parent, LLC, Term Loan, 1st Lien
5.250%, VAR LIBOR+4.250%, 01/02/2025 (C)		1,355		1,230
Sedgwick Claims Management Services, Inc. (Lightning Cayman Merger Sub, Ltd.), Initial Term Loan, 1st Lien
3.396%, VAR LIBOR+3.250%, 12/31/2025		1,720		1,679

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Service Logic Acquisition, Inc., Closing Date Initial Term Loan, 1st Lien
4.750%, VAR LIBOR+4.000%, 10/23/2027	$	2,150	$	2,147
Tempo Acquisition, LLC, Extended Term Loan, 1st Lien
3.750%, VAR LIBOR+3.250%, 11/02/2026		1,544		1,516
TGG TS Acquisition Company, Term B Loan, 1st Lien
6.643%, VAR LIBOR+6.500%, 12/14/2025		1,346		1,321
Vertical Midco GmbH, Facility B (USD), 1st Lien
4.570%, VAR LIBOR+4.250%, 07/30/2027		1,189		1,185
William Morris Endeavor Entertainment, LLC (IMG Worldwide Holdings, LLC), Term B-1 Loan, 1st Lien
2.900%, VAR LIBOR+2.750%, 05/18/2025		1,200		1,083
				21,690
Cable & Satellite Television — 0.9%
Altice Financing S.A., October 2017 USD Term Loan, 1st Lien
2.896%, VAR LIBOR+2.750%, 01/31/2026		2,763		2,658
Diamond Sports Group, LLC, Term Loan, 1st Lien
3.400%, VAR LIBOR+3.250%, 08/24/2026		905		751
Numericable U.S. LLC, USD TLB-[12] Term Loan, 1st Lien
3.828%, VAR LIBOR+3.688%, 01/31/2026		571		562
Numericable U.S. LLC, USD TLB-11 Term Loan, 1st Lien
2.896%, VAR LIBOR+2.750%, 07/31/2025		2,576		2,492
Terrier Media Buyer, Inc., Term B Loan, 1st Lien
4.396%, VAR LIBOR+4.250%, 12/17/2026		1,626		1,604
				8,067
Cargo Transport — 0.0%
Genesee & Wyoming Inc., Initial Term Loan, 1st Lien
2.220%, VAR LIBOR+2.000%, 12/30/2026		2		2

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   69

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Chemicals & Plastics — 1.0%
Cambrex Corporation, Initial Dollar Term Loan, 1st Lien
6.000%, VAR LIBOR+5.000%, 12/04/2026	$	3,772	$	3,772
Cambrex Corporation, Tranche B-1 Dollar Term Loan, 1st Lien
5.500%, VAR LIBOR+4.500%, 12/04/2026 (C)		286		286
DuBois Chemicals, Term Loan B, 1st Lien
4.650%, 09/30/2026 (A)		2,131		2,056
Ring Container Technologies Group, LLC, Initial Term Loan, 1st Lien
2.896%, VAR LIBOR+2.750%, 10/31/2024		1,155		1,128
SCIH Salt Holdings Inc., Closing Date Term Loan, 1st Lien
5.500%, VAR LIBOR+4.500%, 03/16/2027		437		435
Wilsonart LLC, Tranche D Term Loan, 1st Lien
4.250%, VAR LIBOR+3.250%, 12/19/2023		2,527		2,501
				10,178
Computers & Electronics — 0.9%
Anchor Packaging, LLC, Initial Term Loan B, 1st Lien
3.896%, VAR LIBOR+7.000%, 07/18/2026 (C)(D)		3,415		3,389
Applied Systems, Inc., Initial Term Loan, 1st Lien
4.250%, VAR LIBOR+3.000%, 09/19/2024 (C)		1,557		1,550
Cvent, Inc., Term Loan, 1st Lien
3.896%, VAR LIBOR+3.750%, 11/29/2024		1,782		1,682
ION Trading, Term Loan, 1st Lien
5.000%, VAR Euribor+3.250%, 11/21/2024		1,424		1,403
Regionalcare Hospital Partners Holdings, Inc., Term B Loan, 2nd Lien
3.896%, VAR LIBOR+3.750%, 11/16/2025 (C)		874		860
				8,884
Construction — 0.2%
PI UK Holdco II Limited, Facility B1, Term Loan, 1st Lien
4.500%, VAR LIBOR+3.500%, 01/03/2025		1,757		1,732

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Consumer Nondurables — 0.4%
Diamond (BC) B.V., Initial USD Term Loan, 1st Lien
3.214%, VAR LIBOR+3.000%, 09/06/2024	$	1,005	$	982
Kronos Acquisition Intermediate Inc., Initial Loan, 1st Lien
5.000%, VAR LIBOR+4.000%, 05/15/2023		176		175
Kronos Acquisition Intermediate Inc., Initial Loan, 2nd Lien U
5.000%, VAR LIBOR+4.000%, 05/15/2023 (C)		1,451		1,446
Leslie’s Poolmart, Term Loan, 1st Lien
5.577%, 08/16/2023 (A)(C)		1,365		1,345
				3,948
Containers & Glass Products — 1.7%
BWay Holding Company , Initial Term Loan, 1st Lien
3.480%, VAR LIBOR+3.250%, 04/03/2024		2,775		2,639
Charter NEX US, Inc., Initial Term Loan, 1st Lien
5.000%, VAR Prime Rate by Country+3.250%, 05/16/2024		2,032		2,025
0.000%, 11/24/2027 (A)(C)(E)		2,630		2,623
Packaging Coordinators Midco, Inc., Term B Loan, 1st Lien
4.500%, VAR LIBOR+3.750%, 09/25/2027 (C)		1,020		1,011
Pregis TopCo LLC, Initial Term Loan, 1st Lien
3.896%, VAR LIBOR+3.750%, 07/31/2026		1,882		1,855
Pretium PKG Holdings, Inc., Initial Term Loan, 1st Lien
0.000%, 10/29/2027 (E)		1,477		1,459
Pretium PKG Holdings, Inc., Initial Term Loan, 2nd Lien
0.000%, 10/29/2027 (A)(E)		907		893
Tank Holding Corp., 2020 Refinancing Term Loan, 1st Lien
3.396%, VAR LIBOR+3.250%, 03/26/2026		2,590		2,547
Trident TPI Holdings, Inc., Tranche B-1 Term Loan, 1st Lien
4.000%, VAR LIBOR+3.000%, 10/17/2024		1,916		1,876
				16,928

  70   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Diversified/Conglomerate Service — 0.3%
AI Aqua Merger Sub, Inc., Term Loan B-1, 1st Lien
4.250%, VAR Euribor+4.500%, 12/13/2023	$	2,462	$	2,406
Ecological Services & Equipment — 0.3%
Cast & Crew Payroll, LLC, Initial Term Loan, 1st Lien
3.896%, VAR LIBOR+3.750%, 02/09/2026		3,035		2,933
Education Services — 0.3%
Global Education Management Systems Establishment, Term Loan, 1st Lien
6.000%, VAR LIBOR+5.000%, 07/31/2026		2,571		2,526
Electronics/Electrical — 3.4%
Cardtronics USA, Inc., Initial Term Loan,2nd Lien
5.000%, VAR LIBOR+4.000%, 06/29/2027		1,319		1,316
ECi Macola/MAX Holding, LLC, Initial Term Loan, 1st Lien
4.500%, VAR LIBOR+3.750%, 09/17/2027		1,540		1,525
Epicor Software Corporation (fka Eagle Parent Inc.), Initial Term Loan, 2nd Lien
8.750%, VAR LIBOR+7.750%, 07/31/2028		436		448
Epicor Software Corporation (fka Eagle Parent Inc.), Term B Loan (2020), 1st Lien
5.250%, VAR LIBOR+4.250%, 07/30/2027		1,119		1,119
Hyland Software, Inc., 2018 Refinancing Term Loan, 1st Lien
4.250%, VAR LIBOR+3.500%, 07/01/2024		1,749		1,740
Idera, Inc., Initial Term Loan, 1st Lien
5.000%, VAR LIBOR+4.000%, 06/28/2024		1,424		1,414
Imprivata, Inc., Initial Term Loan
0.000%, 11/24/2027 (C)(E)		1,518		1,508
Insurity Holdings, Term Loan, 1st Lien
4.179%, VAR LIBOR+4.000%, 07/31/2026 (C)		2,080		2,045
LANDesk Software, Delayed Draw, Term Loan, 1st Lien
0.000%, 11/22/2027 (A)(C)(E)		1,857		1,837
LANDesk Software, Term Loan, 1st Lien
5.750%, VAR LIBOR+4.750%, 11/22/2027 (C)		1,943		1,922

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
LANDesk Software, Term Loan, 2nd Lien
0.000%, 11/09/2028 (A)(C)(E)	$	1,130	$	1,096
MA Financeco., LLC, Tranche B-4 Term Loan, 1st Lien
5.250%, VAR LIBOR+4.250%, 06/05/2025 (D)		1,163		1,161
MH Sub I, LLC (Micro Holding Corp.), 2020 June New Term Loan, 1st Lien
4.750%, VAR LIBOR+3.750%, 09/13/2024		1,183		1,170
MH Sub I, LLC (Micro Holding Corp.), Amendment No. 2 Initial Term Loan, 1st Lien
3.646%, VAR LIBOR+3.500%, 09/13/2024		1,520		1,487
Misys Limited, Dollar Term Loan, 1st Lien
4.500%, VAR LIBOR+3.500%, 06/13/2024		673		652
Mitchell International, Inc., Amendment No. 2 New Term Loan Facility, 1st Lien
4.750%, VAR LIBOR+4.250%, 11/29/2024		750		738
Netsmart, Inc., Initial Term Loan, 1st Lien
4.750%, VAR LIBOR+4.000%, 09/29/2027		1,718		1,703
Orion Advisor Solutions, Inc., Initial Term Loan, 1st Lien
5.000%, VAR LIBOR+4.000%, 09/24/2027		727		723
Perforce Software, Inc., New Term Loan, 1st Lien
3.896%, VAR LIBOR+3.750%, 07/01/2026 (C)		1,094		1,069
Project Boost Purchaser, LLC, Term Loan, 1st Lien
3.646%, VAR LIBOR+3.500%, 06/01/2026		1,304		1,267
Renaissance Holding Corp., Initial Term Loan, 1st Lien
3.396%, VAR LIBOR+3.250%, 05/30/2025		510		497
Renaissance Holding Corp., Initial Term Loan, 2nd Lien
7.146%, VAR LIBOR+7.000%, 05/29/2026		438		427
Sophia, L.P., Closing Date Loan (Second Lien), Term Loan
9.000%, VAR LIBOR+8.000%, 09/22/2028		1,000		990
Sophia, L.P., Closing Date Term Loan, 1st Lien
4.500%, VAR LIBOR+3.750%, 09/23/2027		2,998		2,976

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   71

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
TIBCO Software Inc., Term B-3 Loan, 1st Lien
3.900%, VAR LIBOR+3.750%, 06/30/2026	$	2,336	$	2,283
				33,113
Entertainment & Leisure — 0.1%
Alphabet Holding Company Inc., Initial Term Loan, 2nd Lien
7.896%, VAR LIBOR+3.000%, 09/26/2025		705		686
Crown Finance US, Inc., Initial Dollar Tracnhe Term Loan
2.769%, VAR LIBOR+2.500%, 02/28/2025 (C)		2		2
				688
Financial Intermediaries — 1.2%
Alchemy Copyrights, LLC, 2020 Term Loan, 1st Lien
4.000%, VAR LIBOR+3.250%, 08/16/2027		1,334		1,330
Aruba Investments, Term Loan, 1st Lien
4.750%, 10/28/2027 (A)(C)		509		506
Aruba Investments, Term Loan, 2nd Lien
8.500%, 10/27/2028 (A)(C)		1,467		1,464
AssuredPartners, Inc., 2020 June Incremental Term Loan, 1st Lien
5.500%, VAR LIBOR+4.500%, 02/12/2027		748		748
Cinemark USA, Term Loan, 1st Lien
1.900%, 03/31/2025 (A)(C)		627		572
Deerfield Dakota Holding, LLC , Initial Dollar Term Loan, 1st Lien
4.750%, VAR LIBOR+3.750%, 04/09/2027		623		621
LS Group Opco Acquisition LLC (LS Group PropCo Acquisition LLC), Initial Term Loan, 1st Lien
4.250%, VAR LIBOR+3.500%, 10/26/2027		2,650		2,623
MSG National, Term Loan, 1st Lien
7.000%, 12/31/2049 (A)(C)		570		553
Nexus Buyer LLC, Term Loan, 1st Lien
3.900%, VAR LIBOR+3.750%, 11/09/2026		1,078		1,065
Quirch Foods Holdings, LLC, Initial Term Loan, 1st Lien
6.250%, VAR LIBOR+5.250%, 10/19/2027		1,230		1,224
Valkyr Purchaser, LLC, Initial Term Loan
4.750%, VAR LIBOR+4.000%, 10/29/2027		1,073		1,063
				11,769

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Financial Services — 0.1%
Particle Investment S.a.r.l. (WebPros), Term Loan, 1st Lien
5.750%, 02/18/2027 (A)	$	1,425	$	1,406
				1,406
Food Service — 0.8%
Froneri International Limited, Second Lien Facility (USD), 2nd Lien
5.896%, VAR LIBOR+5.750%, 01/31/2028		564		560
IRB Holding Corp., 2020 Replacement Term B Loan, 1st Lien
3.750%, VAR LIBOR+2.750%, 02/05/2025		3,120		3,063
IRB Holding Corp., Fourth Amendment Incremental Term Loan, 1st Lien
4.250%, 11/19/2027 (A)(C)		1,922		1,906
Simply Good Foods USA, Inc., 2019 Incremental Term Loan, 1st Lien
4.750%, VAR LIBOR+3.750%, 07/07/2024		2,634		2,636
				8,165
Health Care — 3.5%
Air Methods Corporation, Initial Term Loan, 1st Lien
4.500%, VAR LIBOR+3.500%, 04/22/2024 (C)		1,197		1,116
Capital Vision/MED Delayed Incremental Term Loan, 1st Lien
0.327%, 08/31/2026 (A)		475		468
Capital Vision/MED Delayed Term Loan, 1st Lien
4.396%, VAR LIBOR+4.250%, 08/31/2026		287		275
Capital Vision/MED Term Loan, 1st Lien
4.396%, VAR LIBOR+4.250%, 08/31/2026		1,633		1,565
CNT Holdings I Corp, Initial Term Loan, 1st Lien
4.500%, VAR LIBOR+3.750%, 10/16/2027		1,528		1,513
CNT Holdings I Corp, Initial Term Loan, 2nd Lien
7.500%, VAR LIBOR+6.750%, 10/16/2028		765		767
Envision Healthcare Corporation, Initial Term Loan, 1st Lien
3.896%, VAR LIBOR+3.750%, 10/10/2025		2,375		1,930

  72   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
eResearchTechnology, Inc., Initial Term Loan, 1st Lien
5.500%, VAR LIBOR+4.500%, 02/04/2027	$	3,471	$	3,465
Global Medical Response, Inc., 2020 Refinancing Term Loan, 1st Lien
5.750%, VAR LIBOR+4.750%, 09/24/2025		1,198		1,182
Jaguar Holding Company I, LLC (fka Jaguar Holding Company I), 2018 Term Loan, 1st Lien
3.500%, VAR LIBOR+2.500%, 08/18/2022		—		—
Life Time Fitness Inc., Term Loan, 1st Lien
3.750%, VAR LIBOR+2.750%, 06/10/2022		1,044		977
Maravai Intermediate Holdings, LLC, Initial Term Loan, 1st Lien
6.250%, VAR LIBOR+4.250%, 10/15/2027		1,617		1,619
National Mentor Holdings, Inc., Initial Term C Loan, 1st Lien
4.400%, VAR LIBOR+4.250%, 03/09/2026		126		125
National Mentor Holdings, Inc., Initial Term Loan, 1st Lien
4.400%, VAR LIBOR+4.250%, 03/09/2026		2,770		2,745
Navicure Inc., Initial Term Loan, 1st Lien
4.146%, VAR LIBOR+4.000%, 10/22/2026 (D)		266		261
NBTY (Nature’s Bounty), Term Loan, 1st Lien
3.646%, VAR LIBOR+3.500%, 09/26/2024		2,307		2,256
Option Care Health, Inc., Term B Loan, 1st Lien
4.396%, VAR LIBOR+4.250%, 08/06/2026		3,087		3,075
Ortho-Clinical Diagnostics, Inc., Second Amendment New Term Loan, 1st Lien
3.390%, VAR LIBOR+3.250%, 06/30/2025		1,212		1,187
Precision Medicine Group, LLC, Initial Term Loan, 1st Lien
4.500%, VAR LIBOR+3.750%, 10/29/2027		2,067		2,049
Radnet Management, Inc., Term B-1 Loan, 1st Lien
4.750%, VAR LIBOR+3.750%, 06/30/2023		1,082		1,077

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Sotera Health Holdings, LLC, Initial Term Loan, 1st Lien
5.500%, VAR LIBOR+4.500%, 12/11/2026	$	3,407	$	3,404
Team Health Holdings, Inc., Initial Term Loan, 1st Lien
3.750%, VAR LIBOR+2.750%, 02/06/2024		744		647
Tecostar Holdings, 2017 Term Loan
4.500%, VAR LIBOR+3.500%, 05/01/2024		365		355
Universal Hospital/Agiliti Health, Incremental Term Loan, 1st Lien
3.750%, 01/04/2026 (A)(C)		692		686
WCG Purchaser Corp., Initial Term Loan, 1st Lien
5.000%, VAR LIBOR+4.000%, 01/08/2027		1,720		1,718
				34,462
Home Furnishings — 0.4%
Diamond (BC) B.V., New Term Loan, 1st Lien
6.000%, VAR LIBOR+5.000%, 09/06/2024		854		844
6.000%, VAR LIBOR+5.000%, 09/26/2024		2		2
Hillman Group, Inc., The, Initial Term Loan, 1st Lien
4.146%, VAR LIBOR+4.000%, 05/30/2025		2,029		2,009
Pactiv Evergreen Inc., Tranche B-1 U.S. Term Loan, 1st Lien
2.896%, VAR LIBOR+2.750%, 02/05/2023 (C)		526		519
				3,374
Industrial Equipment — 1.4%
Alliance Laundry Systems LLC, Initial Term B Loan, 1st Lien
4.250%, VAR LIBOR+3.500%, 09/30/2027		3,003		2,994
CPI Holdco, LLC, Closing Date Term Loan, 1st Lien
4.396%, VAR LIBOR+4.250%, 11/04/2026		1,322		1,313
Dynacast International LLC, Term B-2 Loan, 1st Lien
4.250%, VAR LIBOR+3.250%, 01/28/2022		2,610		2,467
Pro Mach Group, Inc., Third Amendment Delayed Draw Term Loan, 1st Lien
0.000%, 03/07/2025 (E)		389		400

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   73

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Pro Mach Group, Inc., Third Amendment Incremental Term Loan, 1st Lien
4.500%, VAR LIBOR+3.500%, 03/07/2025	$	767	$	749
Restaurant Technologies, Inc., Initial Loan, 2nd Lien
6.656%, VAR LIBOR+6.500%, 10/01/2026		119		111
Star US Bidco LLC, Initial Term Loan, 1st Lien
5.250%, VAR LIBOR+4.250%, 03/17/2027		2,540		2,458
TMK Hawk Parent, Corp., Initial Tranche A Loan (Super Senior Priority), Term Loan
8.500%, 05/30/2024 (A)		715		686
TMK Hawk Parent, Corp., Initial Tranche B Loan (Super Senior Priority), Term Loan
4.500%, VAR LIBOR+3.500%, 08/28/2024		958		819
Welbilt, Inc. (fka Manitowoc Foodservice, Inc.), Term B Loan (2018), 1st Lien
2.647%, VAR LIBOR+2.500%, 10/23/2025		1,955		1,839
				13,836
Information Technology — 0.3%
Infoblox, Cov-Lite, 2nd Lien
8.000%, VAR LIBOR+7.250%, 10/06/2028 (C)		1,118		1,122
Mitchell International, Inc., Initial Term Loan, 1st Lien
3.396%, VAR LIBOR+3.250%, 11/29/2024		1,849		1,785
				2,907
Insurance — 1.7%
Acrisure, LLC, 2020 Term Loan, 1st Lien
3.646%, VAR LIBOR+3.500%, 02/15/2027		3,726		3,643
Alliant Holdings Intermediate, LLC, Term Loan B2, 1st Lien
3.393%, VAR LIBOR+3.000%, 05/09/2025		795		775
AqGen Ascensus, Inc., Seventh Amendment Replacement Term Loan, 1st Lien
5.000%, VAR LIBOR+4.000%, 12/03/2026		545		540
Asurion, LLC (fka Asurion Corporation), Second Lien Replacement B-2 Term Loan, 2nd Lien
6.646%, VAR LIBOR+6.000%, 08/04/2025		2,357		2,370

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Broadstreet Partners, Cov-Lite, Term Loan, 1st Lien
4.750%, VAR LIBOR+3.750%, 01/27/2027	$	1,338	$	1,318
Cross Financial Corp., Initial Term Loan, 1st Lien
5.500%, VAR LIBOR+4.500%, 09/15/2027		1,250		1,247
HIG Finance 2 Limited, 2020 Dollar Incremental Term Loan, 1st Lien
4.750%, VAR LIBOR+3.750%, 10/22/2027 (C)		1,022		1,014
Hub International Limited, B-2 Incremental Term Loan, 1st Lien
5.000%, VAR LIBOR+4.000%, 04/25/2025		786		786
Hyperion Insurance, Delayed Draw, Term Loan, 1st Lien
0.000%, 10/22/2027 (A)(C)(E)		384		381
OneDigital Borrower LLC, Delayed Draw Term Loan, 1st Lien
5.250%, 10/29/2027 (A)(C)		330		327
OneDigital Borrower LLC, Initial Term Loan, 1st Lien
5.250%, VAR LIBOR+4.500%, 10/29/2027 (C)		1,780		1,768
USI, Inc., 2019 New Term Loan, 1st Lien
4.220%, VAR LIBOR+4.000%, 12/02/2026		1,999		1,990
				16,159
Leasing — 0.4%
AVSC Holding Corp., Initial Term Loan, 1st Lien
5.580%, VAR LIBOR+3.250%, 03/03/2025		43		37
4.250%, VAR LIBOR+3.250%, 03/03/2025		2,422		2,135
Hyland Software, Inc., Initial Term Loan, 2nd Lien
7.750%, VAR LIBOR+7.000%, 07/07/2025		1,624		1,632
				3,804
Leisure Goods/Activities/Movies — 1.0%
Alterra Mountain Company, Additional Term Loan, 1st Lien
5.500%, VAR LIBOR+4.500%, 08/01/2026 (C)		1,413		1,413
AMC Entertainment Holdings, Inc. (fka AMC Entertainment Inc.), Term B-1 Loan, 1st Lien
3.230%, VAR LIBOR+3.000%, 04/22/2026 (C)		2		2

  74   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Formula One Management Limited, Facility B3 (USD), 1st Lien
3.500%, VAR LIBOR+2.500%, 02/01/2024 (C)	$	741	$	720
Hoya Midco, LLC, Initial Term Loan, 1st Lien
4.500%, VAR LIBOR+3.500%, 06/30/2024 (C)		1,309		1,183
Live Nation Entertainment, Inc., Term B-4 Loan, 1st Lien
1.938%, VAR LIBOR+1.750%, 10/19/2026		270		259
NewCo I B.V., Facility AV1, 1st Lien
3.673%, VAR LIBOR+3.500%, 01/31/2029		728		719
UFC Holdings, LLC, B-2 Term Loan, 1st Lien
4.250%, VAR LIBOR+3.250%, 04/29/2026		770		759
UFC Holdings, LLC, Term B-1 Loan, 1st Lien
4.250%, VAR LIBOR+3.250%, 04/29/2026		3,075		3,042
United PF Holdings, LLC, Initial Term Loan, 1st Lien
4.220%, VAR LIBOR+4.000%, 12/30/2026		1,259		1,167
UPC Financing Partnership , Facility AV, 1st Lien
3.677%, VAR LIBOR+3.500%, 01/31/2029		728		720
				9,984
Lodging & Casinos — 0.2%
Caesars Resort Collection, LLC, Term B-1 Loan, 1st Lien
4.646%, VAR LIBOR+4.500%, 07/21/2025		900		891
Mohegan Tribal Gaming Authority, Term B Loan, 1st Lien
6.375%, VAR LIBOR+4.000%, 10/13/2023		1,476		1,370
				2,261
Media — 0.2%
Merrill Communications, LLC, Term Loan B (2019), 2nd Lien
6.000%, 10/05/2026 (A)		1,840		1,829
Oil & Gas — 0.3%
Equinox Fitness Clubs, Term Loan B-1, 1st Lien
4.000%, VAR LIBOR+4.500%, 03/08/2024		856		717

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Equinox Fitness Clubs, Term Loan B-2, 1st Lien
10.000%, VAR LIBOR+9.000%, 03/08/2024	$	763	$	763
Medallion Midland, Term Loan B, 1st Lien
4.250%, VAR LIBOR+3.250%, 10/30/2024		785		751
Woodford Express LLC, Term Loan B, 1st Lien
6.000%, VAR LIBOR+5.000%, 01/27/2025		1,458		991
				3,222
Personal Transportation — 0.1%
JetBlue Airways Corporation, Term Loan, 1st Lien
6.250%, VAR LIBOR+5.250%, 06/17/2024		723		734
Printing, Publishing & Broadcasting — 0.0%
Clear Channel Outdoor Holdings, Inc., Term B Loan, 1st Lien
3.666%, VAR LIBOR+3.500%, 08/21/2026		1		1
Professional & Business Services — 1.1%
Applied Systems, Inc., Initial Term Loan, 2nd Lien
8.000%, VAR LIBOR+7.000%, 09/19/2025		1,819		1,823
Big Ass Fans, LLC, Repricing Term Loan, 1st Lien
4.750%, VAR LIBOR+3.750%, 05/21/2024		2,040		1,999
Brookfield Property REIT Inc., Intial Term Loan A-2, 1st Lien
3.146%, VAR LIBOR+2.250%, 08/28/2023		499		459
GFL Environmental, Incremental Term Loan, 2nd Lien
4.000%, VAR LIBOR+3.250%, 05/30/2025		2,619		2,612
Hanger, Inc., Term Loan B, 1st Lien
3.646%, VAR LIBOR+3.500%, 03/06/2025 (C)		447		444
Learning Care, Term Loan B, 1st Lien
4.250%, VAR LIBOR+3.250%, 03/13/2025		1,727		1,635
0.250%, VAR LIBOR+3.250%, 03/13/2025		396		375
SAI Global, Term Loan B, 1st Lien
5.500%, VAR LIBOR+4.500%, 12/20/2023		1,962		1,589

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   75

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Sedgwick CMS,Term Loan B,1st Lien
4.146%, VAR LIBOR+4.000%, 09/03/2026	$	119	$	117
				11,053
Publishing — 0.4%
Clear Channel Outdoor Holdings, Inc., Term B Loan, 1st Lien
3.714%, VAR LIBOR+3.500%, 08/21/2026 (C)		1,104		1,038
Dun & Bradstreet Corporation, The, Initial Term Borrowing, 1st Lien
3.893%, VAR LIBOR+3.750%, 02/06/2026 (C)		3,080		3,058
				4,096
Real Estate — 0.1%
BrookField Property REIT Inc., Initial Term A-2 Loan
3.146%, VAR LIBOR+2.250%, 08/28/2023		1,296		1,191
Retail Food & Drug — 0.2%
Albany Molecular Research, Inc., Cov-Lite, 1st Lien
4.250%, VAR LIBOR+3.000%, 08/30/2024		6		6
Albany Molecular Research, Inc., Initial Term Loan, 1st Lien
4.250%, VAR LIBOR+3.250%, 08/30/2024 (C)		2,209		2,201
				2,207
Retailers (except food & drug) — 0.3%
Bass Pro Group, LLC, Initial Term Loan, 1st Lien
5.750%, VAR LIBOR+5.000%, 09/25/2024		516		515
Learning Care Group (US) No. 2 Inc., 2020 Incremental Term Loan
9.500%, VAR LIBOR+8.500%, 03/13/2025		524		526
Mister Car Wash Holdings, Inc., Initial Term Loan, 1st Lien
3.397%, VAR LIBOR+3.250%, 05/14/2026		2,412		2,305
				3,346
Securities & Trusts — 0.2%
Titan Acquisition Limited, Initial Term Loan, 1st Lien
3.361%, VAR LIBOR+3.000%, 03/28/2025		2,186		2,100

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Surface Transport — 0.3%
Dynasty Acquisition Co., Inc., 2020 Term B-1Loan, 1st Lien
3.720%, VAR LIBOR+3.500%, 04/06/2026	$	1,317	$	1,227
Dynasty Acquisition Co., Inc., 2020 Term B-2 Loan, 1st Lien
3.720%, VAR LIBOR+3.500%, 04/06/2026		708		659
Lineage Logistics, LLC, Term Loan, 1st Lien
4.000%, VAR LIBOR+3.000%, 02/27/2025		1,046		1,039
				2,925
Telecommunications — 1.2%
Avaya Inc., Tranche B Term Loan, 1st Lien
4.391%, VAR LIBOR+4.250%, 12/15/2024		845		844
Genesis Energy, 1st Lien
4.750%, VAR LIBOR+4.000%, 10/08/2027 (C)		2,604		2,593
iHeartCommunications, Inc. (fka Clear Channel Communications, Inc.), Term Loan
4.750%, VAR LIBOR+4.000%, 05/01/2026		1,103		1,086
Intelsat Jackson Holdings S.A., DIP Facility, 1st Lien
6.500%, VAR LIBOR+5.500%, 07/13/2022		118		120
Intelsat Jackson Holdings S.A., Tranche B-3 Term Loan, 1st Lien
8.000%, VAR Prime Rate by Country+4.750%, 11/27/2023		1,953		1,974
Intelsat Jackson Holdings S.A., Tranche B-4 Term Loan, 1st Lien
8.750%, VAR Prime Rate by Country+5.500%, 01/02/2024		355		359
Iridium Satellite LLC, Initial Term Loan, 1st Lien
4.750%, VAR LIBOR+3.750%, 11/04/2026		3,015		3,014
Lumos Networks, Term Loan B, 1st Lien
5.000%, VAR LIBOR+4.000%, 11/17/2024		372		370
MTN Infrastructure TopCo, Inc., Initial Term Loan, 1st Lien
4.000%, VAR LIBOR+3.000%, 11/15/2024		1,031		1,014

  76   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Zayo Group Holdings, Inc., Initial Dollar Term Loan, 1st Lien
3.146%, VAR LIBOR+3.000%, 03/09/2027 (C)	$	540	$	530
				11,904
Utilities — 0.2%
Edgewater Generation, L.L.C., Term Loan, 1st Lien
3.896%, VAR LIBOR+3.750%, 12/13/2025		599		585
Granite Acquisition, Inc., Term B Loan (First Lien)
4.750%, VAR LIBOR+3.750%, 10/15/2021		1,380		1,377
Traverse Midstream Partners LLC, Advance, 1st Lien
6.500%, VAR LIBOR+5.500%, 09/27/2024 (D)		397		373
				2,335
Total Loan Participations (Cost $289,438) ($ Thousands)				287,888
ASSET-BACKED SECURITIES — 25.7%
Automotive — 4.1%
Ally Auto Receivables Trust, Ser 2019-4, Cl A3
1.840%, 06/17/2024		1,070		1,087
American Credit Acceptance Receivables Trust, Ser 2019-3, Cl A
2.440%, 12/12/2022 (B)		25		25
American Credit Acceptance Receivables Trust, Ser 2020-1, Cl A
1.890%, 04/13/2023 (B)		126		126
American Credit Acceptance Receivables Trust, Ser 2020-3, Cl A
0.620%, 10/13/2023 (B)		217		218
American Credit Acceptance Receivables Trust, Ser 2020-4, Cl A
0.530%, 03/13/2024 (B)		375		375
AmeriCredit Automobile Receivables Trust, Ser 2020-2, Cl A2A
0.600%, 12/18/2023		190		190
AmeriCredit Automobile Receivables Trust, Ser 2020-3, Cl A2
0.420%, 03/18/2024		520		520
ARI Fleet Lease Trust, Ser 2018-A, Cl A2
2.550%, 10/15/2026 (B)		8		8
ARI Fleet Lease Trust, Ser 2020-A, Cl A2
1.770%, 08/15/2028 (B)		155		157

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Avid Automobile Receivables Trust, Ser 2019-1, Cl A
2.620%, 02/15/2024 (B)	$	919	$	928
Avis Budget Rental Car Funding AESOP LLC, Ser 2019-1A, Cl A
3.450%, 03/20/2023 (B)		2,000		2,053
BMW Vehicle Owner Trust, Ser 2020-A, Cl A2
0.390%, 02/27/2023		190		190
Canadian Pacer Auto Receivables Trust, Ser 2020-1A, Cl A2A
1.770%, 11/21/2022 (B)		317		319
CarMax Auto Owner Trust, Ser 2018-2, Cl A3
2.980%, 01/17/2023		2,048		2,073
CarMax Auto Owner Trust, Ser 2020-4, Cl A2
0.310%, 01/16/2024		395		395
CarMax Auto Owner Trust, Ser 2020-4, Cl A3
0.500%, 08/15/2025		1,000		1,003
Carvana Auto Receivables Trust, Ser 2019-4A, Cl A2
2.200%, 07/15/2022 (B)		48		48
Chesapeake Funding II LLC, Ser 2017-2A, Cl A1
1.990%, 05/15/2029 (B)		29		29
Chesapeake Funding II LLC, Ser 2017-4A, Cl A1
2.120%, 11/15/2029 (B)		209		210
Chesapeake Funding II LLC, Ser 2019-2A, Cl A1
1.950%, 09/15/2031 (B)		434		441
CPS Auto Receivables Trust, Ser 2020-A, Cl A
2.090%, 05/15/2023 (B)		120		121
CPS Auto Receivables Trust, Ser 2020-C, Cl A
0.630%, 03/15/2024 (B)		246		246
Credit Acceptance Auto Loan Trust, Ser 2020-1A, Cl A
2.010%, 02/15/2029 (B)		600		614
Drive Auto Receivables Trust, Ser 2019-4, Cl A3
2.160%, 05/15/2023		219		220
Drive Auto Receivables Trust, Ser 2020-1, Cl A3
2.020%, 11/15/2023		200		202
Drive Auto Receivables Trust, Ser 2020-2, Cl A2A
0.850%, 07/17/2023		115		115
DT Auto Owner Trust, Ser 2019-3A, Cl A
2.550%, 08/15/2022 (B)		34		34
DT Auto Owner Trust, Ser 2020-1A, Cl A
1.940%, 09/15/2023 (B)		91		92
DT Auto Owner Trust, Ser 2020-3A, Cl A
0.540%, 04/15/2024 (B)		287		287

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   77

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Enterprise Fleet Financing LLC, Ser 2019-3, Cl A2
2.060%, 05/20/2025 (B)	$	404	$	411
Enterprise Fleet Financing LLC, Ser 2020-2, Cl A1
0.240%, 10/20/2021 (B)		363		363
Exeter Automobile Receivables Trust, Ser 2020-1A, Cl A
2.050%, 06/15/2023 (B)		72		72
Exeter Automobile Receivables Trust, Ser 2020-2A, Cl A
1.130%, 08/15/2023 (B)		1,290		1,293
Exeter Automobile Receivables Trust, Ser 2020-3A, Cl A2
0.460%, 10/17/2022		360		360
Flagship Credit Auto Trust, Ser 2018-3, Cl A
3.070%, 02/15/2023 (B)		32		32
Flagship Credit Auto Trust, Ser 2019-1, Cl A
3.110%, 08/15/2023 (B)		114		116
Flagship Credit Auto Trust, Ser 2019-2, Cl A
2.830%, 10/16/2023 (B)		229		231
Flagship Credit Auto Trust, Ser 2019-3, Cl A
2.330%, 02/15/2024 (B)		221		224
Flagship Credit Auto Trust, Ser 2020-1, Cl A
1.900%, 08/15/2024 (B)		222		225
Flagship Credit Auto Trust, Ser 2020-3, Cl A
0.700%, 04/15/2025 (B)		88		88
Flagship Credit Auto Trust, Ser 2020-4, Cl A
0.530%, 04/15/2025 (B)		575		575
Ford Credit Auto Lease Trust, Ser 2019-A, Cl A4
2.980%, 06/15/2022		150		152
Ford Credit Auto Lease Trust, Ser 2020-A, Cl A2
1.800%, 07/15/2022		172		173
Ford Credit Auto Lease Trust, Ser 2020-B, Cl A2A
0.500%, 12/15/2022		225		225
Ford Credit Auto Owner Trust, Ser 2017-2, Cl A
2.360%, 03/15/2029 (B)		450		465
Ford Credit Auto Owner Trust, Ser 2020-B,Cl A2
0.500%, 02/15/2023		567		568
Ford Credit Auto Owner Trust, Ser 2020-C, Cl A2
0.250%, 10/15/2023		320		320
Foursight Capital Automobile Receivables Trust, Ser 2020-1, Cl A2
1.970%, 09/15/2023 (B)		197		198
GLS Auto Receivables Issuer Trust, Ser 2019-1A, Cl A
3.370%, 01/17/2023 (B)		37		37

Description	Face Amount (Thousands)			Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
GLS Auto Receivables Issuer Trust, Ser 2019-3A, Cl A
2.580%, 07/17/2023 (B)	$	120		$	121
GLS Auto Receivables Issuer Trust, Ser 2019-4A, Cl A
2.470%, 11/15/2023 (B)		121			122
GLS Auto Receivables Issuer Trust, Ser 2020-1A, Cl A
2.170%, 02/15/2024 (B)		164			166
GLS Auto Receivables Issuer Trust, Ser 2020-3A, Cl A
0.690%, 10/16/2023 (B)		144			144
GLS Auto Receivables Trust, Ser 2018-1A, Cl A
2.820%, 07/15/2022 (B)		30			30
GLS Auto Receivables Trust, Ser 2018-3A, Cl A
3.350%, 08/15/2022 (B)		1			1
GM Financial Automobile Leasing Trust, Ser 2020-2, Cl A2A
0.710%, 10/20/2022		136			136
GM Financial Automobile Leasing Trust, Ser 2020-3, Cl A2A
0.350%, 11/21/2022		305			305
GM Financial Consumer Automobile Receivables Trust, Ser 2020-3, Cl A2
0.350%, 07/17/2023		460			460
GM Financial Consumer Automobile Receivables Trust, Ser 2020-4, Cl A2			��
0.260%, 11/16/2023		145			145
Hertz Fleet Lease Funding, Ser 2019-1, Cl A2
2.700%, 01/10/2033 (B)		344			349
Honda Auto Receivables Owner Trust, Ser 2020-2, Cl A2
0.740%, 11/15/2022		78			78
Honda Auto Receivables Owner Trust, Ser 2020-2, Cl A3
0.820%, 07/15/2024		3,000			3,027
Hyundai Auto Lease Securitization Trust, Ser 2020-B, Cl A2
0.360%, 01/17/2023 (B)		335			335
Hyundai Auto Receivables Trust, Ser 2017-A, Cl B
2.380%, 04/17/2023		1,000			1,007
Mercedes-Benz Auto Lease Trust, Ser 2020- A, Cl A2
1.820%, 03/15/2022		76			77
Mercedes-Benz Auto Receivables Trust, Ser 2020-1, Cl A2
0.460%, 03/15/2023		290			290
Nissan Auto Lease Trust, Ser 2020-A, Cl A2A
1.800%, 05/16/2022		239			240
Nissan Auto Lease Trust, Ser 2020-B, Cl A2
0.340%, 12/15/2022		390			390

  78   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Nissan Auto Receivables Owner Trust, Ser 2020-B, Cl A2A
0.470%, 10/17/2022	$	450	$	451
Prestige Auto Receivables Trust, Ser 2020-1A, Cl A2
0.520%, 02/15/2024 (B)		480		480
Santander Consumer Auto Receivables Trust, Ser 2020-AA, Cl A
1.370%, 10/15/2024 (B)		250		253
Santander Consumer Auto Receivables Trust, Ser 2020-BA, Cl A2
0.380%, 02/15/2023 (B)		400		400
Santander Drive Auto Receivables Trust, Ser 2020-2, Cl A2A
0.620%, 05/15/2023		272		272
Santander Drive Auto Receivables Trust, Ser 2020-2, Cl C
1.460%, 09/15/2025		1,000		1,011
Santander Drive Auto Receivables Trust, Ser 2020-3, Cl A2
0.460%, 09/15/2023		245		245
Santander Drive Auto Receivables Trust, Ser 2020-4, Cl A2
0.420%, 09/15/2023		595		595
Santander Retail Auto Lease Trust, Ser 2020- B, Cl A2
0.420%, 11/20/2023 (B)		315		315
Securitized Term Auto Receivables Trust, Ser 2019-1A, Cl A3
2.986%, 02/27/2023 (B)		475		482
Securitized Term Auto Receivables Trust, Ser 2019-CRTA, Cl D
4.572%, 03/25/2026 (B)		781		802
Tesla Auto Lease Trust, Ser 2020-A, Cl A2
0.550%, 05/22/2023 (B)		115		115
Tesla Auto Lease Trust, Ser 2020-A, Cl B
1.180%, 01/22/2024 (B)		1,000		1,012
Tidewater Auto Receivables Trust, Ser 2020-AA, Cl C
1.910%, 09/15/2026 (B)		2,000		1,994
United Auto Credit Securitization Trust, Ser 2020-1, Cl A
0.850%, 05/10/2022 (B)		83		83
Volkswagen Auto Lease Trust, Ser 2020-A, Cl A2
0.270%, 04/20/2023		635		633
Volkswagen Auto Loan Enhanced Trust, Ser 2020-1, Cl A2A
0.930%, 12/20/2022		1,710		1,715
Westlake Automobile Receivables Trust, Ser 2017-2A, Cl D
3.280%, 12/15/2022 (B)		328		329

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Westlake Automobile Receivables Trust, Ser 2019-1A, Cl A2A
3.060%, 05/16/2022 (B)	$	26	$	26
Westlake Automobile Receivables Trust, Ser 2020-2A, Cl A2A
0.930%, 02/15/2024 (B)		588		590
Westlake Automobile Receivables Trust, Ser 2020-3A, Cl A2
0.560%, 05/15/2024 (B)		525		525
Wheels SPV 2 LLC, Ser 2020-1A, Cl A2
0.510%, 08/20/2029 (B)		200		200
World Omni Auto Receivables Trust, Ser 2020-B, Cl A2A
0.550%, 07/17/2023		285		285
World Omni Auto Receivables Trust, Ser 2020-C, Cl A2
0.350%, 12/15/2023		540		540
World Omni Automobile Lease Securitization Trust, Ser 2020-B, Cl A2
0.320%, 09/15/2023		125		125
World Omni Select Auto Trust, Ser 2020-A, Cl A2
0.470%, 06/17/2024		330		330
				39,685
Credit Cards — 0.4%
Capital One Multi-Asset Execution Trust, Ser 2018-A2, Cl A2
0.491%, VAR ICE LIBOR USD 1 Month+0.350%, 03/16/2026		2,000		2,003
Citibank Credit Card Issuance Trust, Ser 2018-A2, Cl A2
0.477%, VAR ICE LIBOR USD 1 Month+0.330%, 01/20/2025		2,000		2,003
Master Credit Card Trust II, Ser 2019-2A, Cl A
0.536%, VAR ICE LIBOR USD 1 Month+0.390%, 01/21/2023 (B)		330		331
Trillium Credit Card Trust II, Ser 2020-1A, Cl A
0.516%, VAR ICE LIBOR USD 1 Month+0.370%, 12/26/2024 (B)		405		405
				4,742
Mortgage Related Securities — 2.6%
ABFC Trust, Ser 2002-NC1, Cl M1
1.170%, VAR ICE LIBOR USD 1 Month+1.020%, 03/25/2032		2,388		2,373
ABFC Trust, Ser 2004-HE1, Cl M1
1.050%, VAR ICE LIBOR USD 1 Month+0.900%, 03/25/2034		965		957

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   79

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
ABFC Trust, Ser 2005-OPT1, Cl M1
0.840%, VAR ICE LIBOR USD 1 Month+0.690%, 07/25/2035	$	901	$	898
ABFC Trust, Ser 2005-WF1, Cl M1
0.690%, VAR ICE LIBOR USD 1 Month+0.540%, 11/25/2034		1,095		1,090
Accredited Mortgage Loan Trust, Ser 2004-4, Cl A1A
0.830%, VAR ICE LIBOR USD 1 Month+0.680%, 01/25/2035		32		32
Accredited Mortgage Loan Trust, Ser 2006-2, Cl M1
0.420%, VAR ICE LIBOR USD 1 Month+0.270%, 09/25/2036		1,230		1,108
ACE Securities Home Equity Loan Trust, Ser 2005-SD1, Cl M2
2.025%, VAR ICE LIBOR USD 1 Month+1.875%, 11/25/2050		1,606		1,604
Aegis Asset-Backed Securities Trust Mortgage Pass-Through Certificates, Ser 2004-3, Cl M1
1.050%, VAR ICE LIBOR USD 1 Month+0.900%, 09/25/2034		1,643		1,638
GMACM Home Equity Loan Trust, Ser 2007-HE2, Cl A2
6.054%, 12/25/2037 (A)		572		593
GMACM Home Equity Loan Trust, Ser 2007-HE2, Cl A3
6.193%, 12/25/2037 (A)		213		222
GSAA Home Equity Trust, Ser 2005-11, Cl 2A2
0.790%, VAR ICE LIBOR USD 1 Month+0.640%, 10/25/2035		1,742		1,772
Home Equity Asset Trust, Ser 2005-5, Cl M2
0.914%, VAR ICE LIBOR USD 1 Month+0.765%, 11/25/2035		92		92
Home Equity Asset Trust, Ser 2005-7, Cl M1
0.600%, VAR ICE LIBOR USD 1 Month+0.450%, 01/25/2036		1,561		1,556
Irwin Home Equity Loan Trust, Ser 2006-1,Cl 2A3
6.270%, 09/25/2035 (B)		931		966
Master Asset-Backed Securities Trust,Ser 2006-NC3, Cl A3
0.250%, VAR ICE LIBOR USD 1 Month+0.100%, 10/25/2036		2,270		1,469
Morgan Stanley Capital I Trust, Ser 2004- HE7, Cl M1
1.050%, VAR ICE LIBOR USD 1 Month+0.900%, 08/25/2034		2,153		2,126
Morgan Stanley Capital I Trust, Ser 2005- HE2, Cl M1
0.750%, VAR ICE LIBOR USD 1 Month+0.600%, 01/25/2035		812		809

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Morgan Stanley Dean Witter Capital I Trust, Ser 2002-AM3, Cl M1
1.575%, VAR ICE LIBOR USD 1 Month+1.425%, 02/25/2033	$	4	$	4
Morgan Stanley Dean Witter Capital I Trust, Ser 2002-HE2, Cl A1
1.010%, VAR ICE LIBOR USD 1 Month+0.860%, 08/25/2032 (B)		1,794		1,787
New Century Home Equity Loan Trust, Ser 2005-4, Cl M2
0.915%, VAR ICE LIBOR USD 1 Month+0.765%, 09/25/2035		609		611
NovaStar Mortgage Funding Trust, Ser 2003-3, Cl A1
0.860%, VAR ICE LIBOR USD 1 Month+0.710%, 12/25/2033		2,082		2,047
NovaStar Mortgage Funding Trust, Ser 2004-4, Cl M5
1.875%, VAR ICE LIBOR USD 1 Month+1.725%, 03/25/2035		1,069		1,076
Option One Mortgage Loan Trust, Ser 2003-4, Cl A1
0.790%, VAR ICE LIBOR USD 1 Month+0.640%, 07/25/2033		–		–
Structured Asset Securities Mortgage Loan Trust, Ser 2005-NC2, Cl M4
0.855%, VAR ICE LIBOR USD 1 Month+0.705%, 05/25/2035		1,251		1,245
				26,075
Other Asset-Backed Securities — 18.6%
321 Henderson Receivables I LLC, Ser 2007-1A, Cl A1
0.341%, VAR ICE LIBOR USD 1 Month+0.200%, 03/15/2042 (B)		1,839		1,747
ACIS CLO, Ser 2017-7A, Cl B
1.964%, VAR ICE LIBOR USD 3 Month+1.750%, 05/01/2027 (B)		1,500		1,494
Affirm Asset Securitization Trust, Ser 2020-Z1, Cl A
3.460%, 10/15/2024 (B)		106		108
Affirm Asset Securitization Trust, Ser 2020-Z2, Cl A
1.900%, 01/15/2025 (B)		275		276
Ajax Mortgage Loan Trust, Ser 2017-B, Cl A
3.163%, 09/25/2056 (A)(B)		370		370
Allegro CLO I, Ser 2017-1A, Cl A2R
1.864%, VAR ICE LIBOR USD 3 Month+1.650%, 01/30/2026 (B)		240		240

  80   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Ameriquest Mortgage Securities Pass-Through Certificates, Ser 2004-R2, Cl A1A
0.840%, VAR ICE LIBOR USD 1 Month+0.690%, 04/25/2034	$	359	$	359
AMMC CLO, Ser 2017-16A, Cl CR
2.579%, VAR ICE LIBOR USD 3 Month+2.350%, 04/14/2029 (B)		1,000		991
Apidos CLO XII, Ser 2018-12A, Cl AR
1.317%, VAR ICE LIBOR USD 3 Month+1.080%, 04/15/2031 (B)		725		718
Ares XLIII CLO, Ser 2017-43A, Cl D
3.977%, VAR ICE LIBOR USD 3 Month+3.740%, 10/15/2029 (B)		700		682
Avant Loans Funding Trust, Ser 2019-B, Cl A
2.720%, 10/15/2026 (B)		96		97
Avery Point IV CLO, Ser 2014-1A, Cl D
3.715%, VAR ICE LIBOR USD 3 Month+3.500%, 04/25/2026 (B)		800		793
Avery Point IV CLO, Ser 2017-1A, Cl AR
1.315%, VAR ICE LIBOR USD 3 Month+1.100%, 04/25/2026 (B)		65		65
Avery Point IV CLO, Ser 2017-1A, Cl CR
2.565%, VAR ICE LIBOR USD 3 Month+2.350%, 04/25/2026 (B)		2,000		1,992
Bayview Opportunity Master Fund IVa Trust, Ser 2017-RT1, Cl A1
3.000%, 03/28/2057 (A)(B)		1,585		1,612
Bayview Opportunity Master Fund IVb Trust, Ser 2017-RT6, Cl A
3.500%, 10/28/2057 (A)(B)		529		543
Bear Stearns Asset Backed Securities Trust, Ser 2005-SD2, Cl 2M2
1.650%, VAR ICE LIBOR USD 1 Month+1.500%, 12/25/2044		1,986		1,976
Black Diamond CLO, Ser 2017-1A, Cl A1A
1.505%, VAR ICE LIBOR USD 3 Month+1.290%, 04/24/2029 (B)		2,000		1,988
BlueMountain CLO, Ser 2017-2A, Cl A1R
1.396%, VAR ICE LIBOR USD 3 Month+1.180%, 10/22/2030 (B)		913		908
BlueMountain CLO, Ser 2018-2A, Cl A
1.331%, VAR ICE LIBOR USD 3 Month+1.110%, 08/15/2031 (B)		3,455		3,428
Bravo Mortgage Asset Trust, Ser 2006-1A, Cl A2
0.390%, VAR ICE LIBOR USD 1 Month+0.240%, 07/25/2036 (B)		216		215
Brazos Student Finance, Ser 2010-1, Cl A1
1.125%, VAR ICE LIBOR USD 3 Month+0.900%, 06/25/2035		1,342		1,334
BRE Grand Islander Timeshare Issuer LLC, Ser 2019-A, Cl A
3.280%, 09/26/2033 (B)		1,369		1,419

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Carlyle Global Market Strategies CLO, Ser 2018-1A, Cl A1R2
1.188%, VAR ICE LIBOR USD 3 Month+0.970%, 04/17/2031 (B)	$	648	$	641
Cent CLO XXIV, Ser 2018-24A, Cl A2R
1.887%, VAR ICE LIBOR USD 3 Month+1.650%, 10/15/2026 (B)		1,000		991
CIFC Funding, Ser 2017-5A, Cl A1
1.398%, VAR ICE LIBOR USD 3 Month+1.180%, 11/16/2030 (B)		1,717		1,708
CIT Mortgage Loan Trust, Ser 2007-1, Cl 1A
1.500%, VAR ICE LIBOR USD 1 Month+1.350%, 10/25/2037 (B)		–		–
Citigroup Mortgage Loan Trust, Ser 2007-WFH4, Cl A2C
1.450%, VAR ICE LIBOR USD 1 Month+1.300%, 07/25/2037		519		517
CNH Equipment Trust, Ser 2019-B, Cl A2
2.550%, 09/15/2022		359		360
CNH Equipment Trust, Ser 2020-A, Cl A2
1.080%, 07/17/2023		135		135
Cole Park CLO, Ser 2018-1A, Cl AR
1.268%, VAR ICE LIBOR USD 3 Month+1.050%, 10/20/2028 (B)		700		699
Columbia Cent CLO, Ser 2018-27A, Cl A1
1.365%, VAR ICE LIBOR USD 3 Month+1.150%, 10/25/2028 (B)		600		597
Conn’s Receivables Funding LLC, Ser 2020-A,Cl A
1.710%, 06/16/2025 (B)		337		338
Consumer Loan Underlying Bond CLUB Credit Trust, Ser 2020-P1, Cl A
2.260%, 03/15/2028 (B)		252		254
CoreVest American Finance Trust, Ser 2018-1, Cl A
3.804%, 06/15/2051 (B)		2,295		2,400
Credit-Based Asset Servicing & Securitization LLC, Ser 2005-CB7, Cl M1
0.765%, VAR ICE LIBOR USD 1 Month+0.615%, 11/25/2035		1,601		1,595
CWABS Revolving Home Equity Loan Trust, Ser 2004-I, Cl A
0.431%, VAR ICE LIBOR USD 1 Month+0.290%, 02/15/2034		1,693		1,680
CWHEQ Revolving Home Equity Loan Resecuritization Trust, Ser 2006-RES, Cl 4L1A
0.421%, VAR ICE LIBOR USD 1 Month+0.280%, 02/15/2034 (B)		731		721
CWHEQ Revolving Home Equity Loan Trust,Ser 2006-I, Cl 2A
0.281%, VAR ICE LIBOR USD 1 Month+0.140%, 01/15/2037		1,366		1,304

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   81

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
DB Master Finance LLC, Ser 2019-1A, Cl A2I
3.787%, 05/20/2049 (B)	$	119	$	122
Dell Equipment Finance Trust, Ser 2018-2, Cl A3
3.370%, 10/22/2023 (B)		627		632
Denali Capital CLO XI, Ser 2018-1A, Cl A2RR
1.868%, VAR ICE LIBOR USD 3 Month+1.650%, 10/20/2028 (B)		1,000		976
Domino’s Pizza Master Issuer LLC, Ser 2017-1A, Cl A2I
1.465%, VAR ICE LIBOR USD 3 Month+1.250%, 07/25/2047 (B)		3,880		3,886
ECMC Group Student Loan Trust, Ser 2020-3A, Cl A1B
1.174%, VAR ICE LIBOR USD 1 Month+1.000%, 01/27/2070 (B)		1,000		1,003
Education Loan Asset-Backed Trust I, Ser 2013-1, Cl A1
0.950%, VAR ICE LIBOR USD 1 Month+0.800%, 06/25/2026 (B)		6		6
Educational Funding of the South, Ser 2011-1, Cl A2
0.865%, VAR ICE LIBOR USD 3 Month+0.650%, 04/25/2035		229		228
Elara HGV Timeshare Issuer, Ser 2017-A, Cl A
2.690%, 03/25/2030 (B)		751		771
Encore Credit Receivables Trust, Ser 2005-3, Cl M3
0.915%, VAR ICE LIBOR USD 1 Month+0.765%, 10/25/2035		1,432		1,430
First Franklin Mortgage Loan Trust, Ser 2006-FFA, Cl A3
0.390%, VAR ICE LIBOR USD 1 Month+0.240%, 09/25/2026		7		7
FirstKey Homes Trust, Ser 2020-SFR1, Cl A
1.339%, 09/17/2025 (B)		689		694
FirstKey Homes Trust, Ser 2020-SFR2, Cl A
1.266%, 10/19/2037 (B)		614		615
Gallatin CLO VIII, Ser 2017-1A, Cl B
1.887%, VAR ICE LIBOR USD 3 Month+1.650%, 07/15/2027 (B)		1,500		1,479
Great American Auto Leasing, Ser 2019-1, Cl A2
2.970%, 06/15/2021 (B)		20		20
GreatAmerica Leasing Receivables Funding LLC, Ser 2020-1, Cl A2
1.760%, 06/15/2022 (B)		369		372
Greenpoint Manufactured Housing, Ser 1999-5, Cl M1A
8.300%, 10/15/2026 (A)		295		303

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Greenpoint Manufactured Housing, Ser 2000-4, Cl A3
2.146%, VAR ICE LIBOR USD 1 Month+2.000%, 08/21/2031	$	2,000	$	1,936
Greenwood Park CLO Ltd., Ser 2018-1A, Cl A2
1.247%, VAR ICE LIBOR USD 3 Month+1.010%, 04/15/2031 (B)		1,367		1,352
GSAMP Trust, Ser 2005-HE6, Cl M1
0.810%, VAR ICE LIBOR USD 1 Month+0.660%, 11/25/2035		36		36
GSAMP Trust, Ser 2005-SEA2, Cl B1
2.025%, VAR ICE LIBOR USD 1 Month+1.875%, 01/25/2045 (B)		1,442		1,444
Home Partners of America Trust, Ser 2017-1, Cl A
0.953%, VAR ICE LIBOR USD 1 Month+0.817%, 07/17/2034 (B)		3,823		3,810
Home Partners of America Trust, Ser 2017-1, Cl B
1.486%, VAR ICE LIBOR USD 1 Month+1.350%, 07/17/2034 (B)		2,250		2,247
Home Partners of America Trust, Ser 2018-1, Cl A
1.037%, VAR ICE LIBOR USD 1 Month+0.900%, 07/17/2037 (B)		1,511		1,514
HPEFS Equipment Trust, Ser 2019-1A, Cl A2
2.190%, 09/20/2029 (B)		76		77
HPEFS Equipment Trust, Ser 2020-1A, Cl A2
1.730%, 02/20/2030 (B)		189		191
HPEFS Equipment Trust, Ser 2020-2A, Cl A2
0.650%, 07/22/2030 (B)		825		827
Invitation Homes Trust, Ser 2017-SFR2, Cl A
0.986%, VAR ICE LIBOR USD 1 Month+0.850%, 12/17/2036 (B)		1,214		1,215
Invitation Homes Trust, Ser 2017-SFR2, Cl B
1.286%, VAR ICE LIBOR USD 1 Month+1.150%, 12/17/2036 (B)		1,000		998
Invitation Homes Trust, Ser 2018-SFR1, Cl A
0.836%, VAR ICE LIBOR USD 1 Month+0.700%, 03/17/2037 (B)		1,753		1,738
Invitation Homes Trust, Ser 2018-SFR1, Cl C
1.386%, VAR ICE LIBOR USD 1 Month+1.250%, 03/17/2037 (B)		2,000		2,008
Invitation Homes Trust, Ser 2018-SFR3, Cl A
1.136%, VAR ICE LIBOR USD 1 Month+1.000%, 07/17/2037 (B)		2,005		2,008
Invitation Homes Trust, Ser 2018-SFR3, Cl C
1.436%, VAR ICE LIBOR USD 1 Month+1.300%, 07/17/2037 (B)		2,000		1,995
Invitation Homes Trust, Ser 2018-SFR4, Cl A
1.236%, VAR ICE LIBOR USD 1 Month+1.100%, 01/17/2038 (B)		692		697

  82   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Iowa State Student Loan Liquidity, Ser 2011-1, Cl A
1.475%, VAR ICE LIBOR USD 3 Month+1.250%, 06/25/2042	$	363	$	364
Kentucky Higher Education Student Loan, Ser 2020-1, Cl A1B
1.223%, VAR ICE LIBOR USD 1 Month+1.050%, 11/25/2050		2,000		2,003
Keycorp Student Loan Trust, Ser 2000-B, Cl A2
0.525%, VAR ICE LIBOR USD 3 Month+0.310%, 07/25/2029		1,080		1,069
KKR CLO, Ser 2018-21, Cl A
1.237%, VAR ICE LIBOR USD 3 Month+1.000%, 04/15/2031 (B)		580		574
Kubota Credit Owner Trust, Ser 2020-2A, Cl A2
0.410%, 06/15/2023 (B)		160		160
LCM XXV, Ser 2017-25A, Cl A
1.428%, VAR ICE LIBOR USD 3 Month+1.210%, 07/20/2030 (B)		3,828		3,806
Long Beach Mortgage Loan Trust, Ser 2004-1, Cl M1
0.900%, VAR ICE LIBOR USD 1 Month+0.750%, 02/25/2034		760		743
Long Beach Mortgage Loan Trust, Ser 2004-1, Cl M2
0.975%, VAR ICE LIBOR USD 1 Month+0.825%, 02/25/2034		2,331		2,326
Madison Park Funding XII, Ser 2017-12A, Cl AR
1.478%, VAR ICE LIBOR USD 3 Month+1.260%, 07/20/2026 (B)		25		25
Madison Park Funding XV, Ser 2017-15A, Cl A2R
1.717%, VAR ICE LIBOR USD 3 Month+1.500%, 01/27/2026 (B)		550		547
Madison Park Funding XXX, Ser 2018-30A, Cl A
0.987%, VAR ICE LIBOR USD 3 Month+0.750%, 04/15/2029 (B)		1,000		990
Magnetite VIII, Ser 2018-8A, Cl AR2
1.217%, VAR ICE LIBOR USD 3 Month+0.980%, 04/15/2031 (B)		780		773
Marlette Funding Trust, Ser 2018-4A, Cl A
3.710%, 12/15/2028 (B)		24		24
Marlette Funding Trust, Ser 2019-1A, Cl A
3.440%, 04/16/2029 (B)		80		81
Marlette Funding Trust, Ser 2019-2A, Cl A
3.130%, 07/16/2029 (B)		123		124
Marlette Funding Trust, Ser 2020-1A, Cl A
2.240%, 03/15/2030 (B)		63		63

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Marlette Funding Trust, Ser 2020-2A, Cl A
1.020%, 09/16/2030 (B)	$	153	$	154
MetLife Securitization Trust, Ser 2017-1A, Cl A
3.000%, 04/25/2055 (A)(B)		269		283
MFA Trust, Ser 2020-NQM1, Cl A1
1.479%, 03/25/2065		1,949		1,960
Michigan Finance Authority, Ser 2015-1, Cl A1
0.897%, VAR ICE LIBOR USD 1 Month+0.750%, 04/29/2030		2,089		2,075
Mid-State Capital Trust, Ser 2004-1, Cl M1
6.497%, 08/15/2037		539		576
Mill City Mortgage Loan Trust, Ser 2017-3, Cl A1
2.750%, 01/25/2061 (A)(B)		358		368
MMAF Equipment Finance LLC, Ser 2019-B, Cl A2
2.070%, 10/12/2022 (B)		135		136
MMAF Equipment Finance LLC, Ser 2020-BA, Cl A2
0.380%, 08/14/2023 (B)		115		115
MP CLO VIII, Ser 2018-2A, Cl BR
1.642%, VAR ICE LIBOR USD 3 Month+1.420%, 10/28/2027 (B)		2,000		1,976
MVW Owner Trust, Ser 2014-1A, Cl A
2.250%, 09/22/2031 (B)		778		780
MVW Owner Trust, Ser 2015-1A, Cl A
2.520%, 12/20/2032 (B)		1,116		1,123
Nationstar HECM Loan Trust, Ser 2019-2A, Cl A
2.272%, 11/26/2029 (A)(B)		81		81
Navient Private Education Refi Loan Trust, Ser 2020-EA, Cl A
1.690%, 05/15/2069 (B)		3,036		3,082
Navient Private Education Refi Loan Trust, Ser 2020-FA, Cl A
1.220%, 07/15/2069 (B)		664		668
Navient Private Education Refi Loan Trust, Ser 2020-GA, Cl A
1.170%, 09/16/2069 (B)		1,199		1,205
Navient Private Education Refi Loan Trust, Ser 2020-HA, Cl A
1.310%, 01/15/2069 (B)		2,000		2,016
Nelnet Student Loan Trust, Ser 2007-1, Cl B1
0.357%, VAR ICE LIBOR USD 3 Month+0.150%, 08/25/2037		51		51
New Hampshire Higher Education Loan, Ser 2020-1, Cl A1B
1.380%, VAR ICE LIBOR USD 1 Month+1.200%, 09/25/2060		1,200		1,213
New Residential Mortgage LLC, Ser 2018-FNT1, Cl B
3.910%, 05/25/2023 (B)		1,340		1,335

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   83

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
New Residential Mortgage LLC, Ser 2018-FNT2, Cl A
3.790%, 07/25/2054 (B)	$	1,661	$	1,649
NRZ Excess Spread-Collateralized Notes,Ser 2018-PLS1, Cl A
3.193%, 01/25/2023 (B)		2,000		2,004
NRZ Excess Spread-Collateralized Notes, Ser 2018-PLS2, Cl A
3.265%, 02/25/2023 (B)		1,559		1,560
OCP CLO, Ser 2017-10A, Cl BR
2.065%, VAR ICE LIBOR USD 3 Month+1.850%, 10/26/2027 (B)		2,000		1,966
OCP CLO, Ser 2017-8A, Cl A1R
1.068%, VAR ICE LIBOR USD 3 Month+0.850%, 04/17/2027 (B)		225		224
OneMain Financial Issuance Trust, Ser 2019-2A, Cl A
3.140%, 10/14/2036 (B)		1,117		1,208
OneMain Financial Issuance Trust, Ser 2020-1A, Cl A
3.840%, 05/14/2032 (B)		500		528
OneMain Financial Issuance Trust, Ser 2020-2A, Cl A
1.750%, 09/14/2035 (B)		1,253		1,272
Oxford Finance Funding LLC, Ser 2020-1A, Cl A2
3.101%, 02/15/2028 (B)		1,500		1,530
OZLM XII, Ser 2018-12A, Cl A1R
1.264%, VAR ICE LIBOR USD 3 Month+1.050%, 04/30/2027 (B)		424		423
Palmer Square Loan Funding, Ser 2018-4A, Cl A1
1.121%, VAR ICE LIBOR USD 3 Month+0.900%, 11/15/2026 (B)		1,072		1,067
PFS Financing, Ser 2020-B, Cl A
1.210%, 06/15/2024 (B)		190		192
PFS Financing, Ser 2020-G, Cl A
0.970%, 02/15/2026 (B)		1,057		1,060
Recette CLO, Ser 2017-1A, Cl DR
2.968%, VAR ICE LIBOR USD 3 Month+2.750%, 10/20/2027 (B)		1,000		1,000
SACO I Trust, Ser 2005-GP1, Cl A1
0.510%, VAR ICE LIBOR USD 1 Month+0.360%, 08/25/2030		122		121
SACO I Trust, Ser 2005-WM3, Cl A1
0.670%, VAR ICE LIBOR USD 1 Month+0.520%, 09/25/2035		113		113
SACO I Trust, Ser 2006-6, Cl A
0.410%, VAR ICE LIBOR USD 1 Month+0.260%, 06/25/2036		377		371

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Saxon Asset Securities Trust, Ser 2006-2, Cl A3C
0.300%, VAR ICE LIBOR USD 1 Month+0.150%, 09/25/2036	$	432	$	430
SCF Equipment Leasing LLC, Ser 2020-1A, Cl A2
0.680%, 10/20/2025 (B)		320		320
Shackleton CLO, Ser 2015-8A, Cl A1R
1.138%, VAR ICE LIBOR USD 3 Month+0.920%, 10/20/2027 (B)		901		896
SMB Private Education Loan Trust, Ser 2020-PTB, Cl A2B
1.000%, VAR ICE LIBOR USD 1 Month+0.850%, 09/15/2054 (B)		2,500		2,472
SoFi Consumer Loan Program Trust, Ser 2019-1, Cl A
3.240%, 02/25/2028 (B)		77		78
SoFi Consumer Loan Program Trust, Ser 2019-3, Cl A
2.900%, 05/25/2028 (B)		192		194
SoFi Consumer Loan Program Trust, Ser 2019-4, Cl A
2.450%, 08/25/2028 (B)		208		210
SoFi Consumer Loan Program Trust, Ser 2020-1, Cl A
2.020%, 01/25/2029 (B)		163		165
SoFi Professional Loan Program Trust, Ser 2020-C, Cl AFX
1.950%, 02/15/2046 (B)		446		456
Sonic Capital LLC, Ser 2018-1A, Cl A2
4.026%, 02/20/2048 (B)		417		432
SpringCastle America Funding LLC, Ser 2020-AA, Cl A
1.970%, 09/25/2037 (B)		3,079		3,100
Starwood Waypoint Homes Trust, Ser 2017-1, Cl A
1.091%, VAR ICE LIBOR USD 1 Month+0.950%, 01/17/2035 (B)		2,386		2,384
Structured Asset Investment Loan Trust, Ser 2003-BC11, Cl A3
1.100%, VAR ICE LIBOR USD 1 Month+0.950%, 10/25/2033		2,865		2,820
Structured Asset Investment Loan Trust, Ser 2003-BC12, Cl 2A
0.870%, VAR ICE LIBOR USD 1 Month+0.720%, 11/25/2033		2,641		2,577
Structured Asset Investment Loan Trust,Ser 2004-8, Cl A8
1.150%, VAR ICE LIBOR USD 1 Month+1.000%, 09/25/2034		3,374		3,351

  84   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Structured Asset Investment Loan Trust, Ser 2004-BNC1, Cl A4
1.090%, VAR ICE LIBOR USD 1 Month+0.940%, 09/25/2034	$	1,077	$	1,058
Structured Asset Securities Mortgage Loan Trust, Ser 2007-BC3, Cl 2A3
0.330%, VAR ICE LIBOR USD 1 Month+0.180%, 05/25/2047		1,986		1,915
Symphony CLO XVIII, Ser 2016-18A, Cl B
2.009%, VAR ICE LIBOR USD 3 Month+1.800%, 01/23/2028 (B)		750		745
TAL Advantage VII LLC, Ser 2020-1A, Cl A
2.050%, 09/20/2045 (B)		3,460		3,467
TCI-Flatiron CLO, Ser 2017-1A, Cl B
1.782%, VAR ICE LIBOR USD 3 Month+1.560%, 11/18/2030 (B)		500		492
Telos CLO, Ser 2017-3A, Cl AR
1.518%, VAR ICE LIBOR USD 3 Month+1.300%, 07/17/2026 (B)		832		831
Textainer Marine Containers VIII, Ser 2020-2A, Cl A
2.100%, 09/20/2045 (B)		918		920
Textainer Marine Containers VIII, Ser 2020-3A, Cl A
2.110%, 09/20/2045 (B)		2,499		2,496
Thacher Park CLO, Ser 2017-1A, Cl AR
1.378%, VAR ICE LIBOR USD 3 Month+1.160%, 10/20/2026 (B)		407		407
Towd Point Mortgage Trust, Ser 2015-2, Cl 2A11
3.000%, 11/25/2057 (A)(B)		103		104
Towd Point Mortgage Trust, Ser 2015-4, Cl A1B
2.750%, 04/25/2055 (A)(B)		22		22
Towd Point Mortgage Trust, Ser 2015-5, Cl A1B
2.750%, 05/25/2055 (A)(B)		35		35
Towd Point Mortgage Trust, Ser 2016-1, Cl A1B
2.750%, 02/25/2055 (A)(B)		31		32
Towd Point Mortgage Trust, Ser 2016-3, Cl A1
2.250%, 04/25/2056 (A)(B)		108		109
Towd Point Mortgage Trust, Ser 2016-4, Cl A1
2.250%, 07/25/2056 (A)(B)		225		229
Towd Point Mortgage Trust, Ser 2017-1, Cl A1
2.750%, 10/25/2056 (A)(B)		403		413
Towd Point Mortgage Trust, Ser 2017-2, Cl A1
2.750%, 04/25/2057 (A)(B)		333		341
Towd Point Mortgage Trust, Ser 2017-4, Cl A1
2.750%, 06/25/2057 (A)(B)		1,519		1,573
Towd Point Mortgage Trust, Ser 2017-5, Cl A1
0.750%, VAR ICE LIBOR USD 1 Month+0.600%, 02/25/2057 (B)		1,801		1,789

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Towd Point Mortgage Trust, Ser 2017-6, Cl A1
2.750%, 10/25/2057 (A)(B)	$	382	$	393
Towd Point Mortgage Trust, Ser 2018-3, Cl A1
3.750%, 05/25/2058 (A)(B)		1,341		1,432
Towd Point Mortgage Trust, Ser 2019-HY1, Cl A1
1.150%, VAR ICE LIBOR USD 1 Month+1.000%, 10/25/2048 (B)		1,115		1,115
Towd Point Mortgage Trust, Ser 2020-MH1, Cl A1
2.250%, 02/25/2060 (A)(B)		2,615		2,669
Treman Park CLO, Ser 2018-1A, Cl ARR
1.288%, VAR ICE LIBOR USD 3 Month+1.070%, 10/20/2028 (B)		550		549
Trestles CLO, Ser 2017-1A, Cl A1A
1.505%, VAR ICE LIBOR USD 3 Month+1.290%, 07/25/2029 (B)		5,000		4,994
Tricon American Homes Trust, Ser 2020-SFR2, Cl A
1.482%, 11/17/2039 (B)		564		565
Tryon Park CLO, Ser 2018-1A, Cl A1SR
1.127%, VAR ICE LIBOR USD 3 Month+0.890%, 04/15/2029 (B)		270		269
Venture XX CLO, Ser 2017-20A, Cl CR
2.137%, VAR ICE LIBOR USD 3 Month+1.900%, 04/15/2027 (B)		750		730
Verizon Owner Trust, Ser 2020-A, Cl A1A
1.850%, 07/22/2024		350		359
Verizon Owner Trust, Ser 2020-B, Cl A
0.470%, 02/20/2025		225		226
Volvo Financial Equipment LLC, Ser 2020-1A,Cl A2
0.370%, 04/17/2023 (B)		135		135
Voya CLO, Ser 2017-3A, Cl A1R
0.935%, VAR ICE LIBOR USD 3 Month+0.720%, 07/25/2026 (B)		501		499
Voya CLO, Ser 2018-3A, Cl A2R
1.618%, VAR ICE LIBOR USD 3 Month+1.400%, 10/18/2031 (B)		818		812
Voya CLO, Ser 2020-2A, Cl A1RR
1.238%, VAR ICE LIBOR USD 3 Month+1.020%, 04/17/2030 (B)		4,376		4,328
VSE VOI Mortgage, Ser 2017-A, Cl A
2.330%, 03/20/2035 (B)		1,109		1,131
Westgate Resorts LLC, Ser 2020-1A, Cl A
2.713%, 03/20/2034 (B)		1,799		1,843
				182,001
Total Asset-Backed Securities (Cost $251,461) ($ Thousands)				252,503

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   85

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS — 5.7%
Communication Services — 0.2%
Arches Buyer
4.250%, 06/01/2028 (B)	$	291	$	292
Cinemark USA
5.125%, 12/15/2022		580		563
Comcast
0.665%, VAR ICE LIBOR USD 3 Month+0.440%, 10/01/2021		700		702
Diamond Sports Group LLC
5.375%, 08/15/2026 (B)		508		394
NBCUniversal Enterprise
0.625%, VAR ICE LIBOR USD 3 Month+0.400%, 04/01/2021 (B)		300		300
				2,251
Consumer Discretionary — 0.4%
American Honda Finance MTN
0.329%, VAR ICE LIBOR USD 3 Month+0.120%, 01/21/2022		325		325
Ford Motor Credit LLC
1.503%, VAR ICE LIBOR USD 3 Month+1.270%, 03/28/2022		500		493
Marriott International
0.876%, VAR ICE LIBOR USD 3 Month+0.650%, 03/08/2021		350		350
0.846%, VAR ICE LIBOR USD 3 Month+0.600%, 12/01/2020		475		475
Nissan Motor Acceptance MTN
1.114%, VAR ICE LIBOR USD 3 Month+0.890%, 01/13/2022 (B)		800		794
Specialty Building Products Holdings LLC
6.375%, 09/30/2026 (B)		1,100		1,144
Volkswagen Group of America Finance LLC
2.500%, 09/24/2021 (B)		200		203
1.154%, VAR ICE LIBOR USD 3 Month+0.940%, 11/12/2021 (B)		300		302
				4,086
Consumer Staples — 0.5%
Altria Group
4.750%, 05/05/2021		525		535
Bausch Health
5.000%, 02/15/2029 (B)		585		590
GEMS MENASA Cayman
7.125%, 07/31/2026 (B)		587		596
Global Medical Response
6.500%, 10/01/2025 (B)		890		917
Howard University
2.801%, 10/01/2023		240		250
2.638%, 10/01/2021		100		101
LifePoint Health
5.375%, 01/15/2029 (B)		306		306

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Sabre Global
7.375%, 09/01/2025 (B)	$	558	$	601
Skandinaviska Enskilda Banken
0.550%, 09/01/2023 (B)		200		200
Viatris
1.125%, 06/22/2022 (B)		250		252
				4,348
Energy — 0.1%
Kinder Morgan Energy Partners
3.500%, 03/01/2021		200		201
Occidental Petroleum
1.163%, VAR ICE LIBOR USD 3 Month+0.950%, 02/08/2021		300		298
Phillips 66
0.833%, VAR ICE LIBOR USD 3 Month+0.600%, 02/26/2021		400		400
				899
Financials — 2.0%
ABN AMRO Bank MTN
0.628%, VAR ICE LIBOR USD 3 Month+0.410%, 01/19/2021 (B)		750		750
Assurant
1.483%, VAR ICE LIBOR USD 3 Month+1.250%, 03/26/2021		97		97
Bank of Montreal MTN
0.766%, VAR United States Secured Overnight Financing Rate+0.680%, 03/10/2023		350		352
BPCE MTN
3.000%, 05/22/2022 (B)		450		467
Canadian Imperial Bank of Commerce
0.884%, VAR United States Secured Overnight Financing Rate+0.800%, 03/17/2023		300		303
Capital One Bank USA
2.014%, VAR United States Secured Overnight Financing Rate+0.616%, 01/27/2023		300		305
Cooperatieve Rabobank UA
1.054%, VAR ICE LIBOR USD 3 Month+0.830%, 01/10/2022		1,000		1,008
Credit Suisse Group Funding Guernsey
3.125%, 12/10/2020		450		450
Credit Suisse NY
0.550%, VAR United States Secured Overnight Financing Rate+0.450%, 02/04/2022		600		601
Danske Bank
3.001%, VAR ICE LIBOR USD 3 Month+1.249%, 09/20/2022 (B)		250		254
2.000%, 09/08/2021 (B)		200		203

  86   SEI Institutional Investments Trust /Semi-Annual Report /November 30,  2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Deutsche Bank NY
4.250%, 02/04/2021	$	300	$	302
1.031%, VAR ICE LIBOR USD 3 Month+0.815%, 01/22/2021		550		550
Goldman Sachs Group
1.325%, VAR ICE LIBOR USD 3 Month+1.110%, 04/26/2022		750		753
HSBC Holdings
4.000%, 03/30/2022		200		209
ING Groep
1.368%, VAR ICE LIBOR USD 3 Month+1.150%, 03/29/2022		700		708
Intercontinental Exchange
0.903%, VAR ICE LIBOR USD 3 Month+0.650%, 06/15/2023		325		326
Marsh & McLennan
3.500%, 12/29/2020		95		95
Metropolitan Life Global Funding I MTN
0.653%, VAR United States Secured Overnight Financing Rate+0.570%, 01/13/2023 (B)		350		352
Mizuho Financial Group
0.837%, VAR ICE LIBOR USD 3 Month+0.630%, 05/25/2024		525		526
Morgan Stanley
1.398%, VAR ICE LIBOR USD 3 Month+1.180%, 01/20/2022		625		626
Morgan Stanley MTN
0.782%, VAR United States Secured Overnight Financing Rate+0.700%, 01/20/2023		400		401
National Australia Bank
1.875%, 12/13/2022		250		258
National Bank of Canada
0.900%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+0.770%, 08/15/2023		250		252
Nationwide Building Society
2.000%, 01/27/2023 (B)		200		206
NFP
7.000%, 05/15/2025 (B)		733		784
NMI Holdings
7.375%, 06/01/2025 (B)		266		294
Pacific Life Global Funding II
0.500%, 09/23/2023 (B)		185		185
PNC Bank
0.530%, VAR ICE LIBOR USD 3 Month+0.325%, 02/24/2023		350		351
Royal Bank of Canada MTN
0.532%, VAR United States Secured Overnight Financing Rate+0.450%, 10/26/2023		225		225

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Santander UK
2.100%, 01/13/2023	$	200	$	207
Standard Chartered
2.744%, VAR ICE LIBOR USD 3 Month+1.200%, 09/10/2022 (B)		345		350
Toronto-Dominion Bank MTN
0.562%, VAR United States Secured Overnight Financing Rate+0.480%, 01/27/2023		250		251
0.534%, VAR United States Secured Overnight Financing Rate+0.450%, 09/28/2023		250		250
UniCredit MTN
6.572%, 01/14/2022 (B)		350		370
United Shore Financial Services LLC
5.500%, 11/15/2025 (B)		515		541
Vista Point
1.763%, 03/25/2065		2,595		2,614
Zions Bancorp
3.350%, 03/04/2022		2,000		2,062
				18,838
Health Care — 0.3%
Bristol-Myers Squibb
0.537%, 11/13/2023		250		250
Cigna
0.896%, VAR ICE LIBOR USD 3 Month+0.650%, 09/17/2021		400		400
CVS Health
0.962%, VAR ICE LIBOR USD 3 Month+0.720%, 03/09/2021		1,540		1,543
Gilead Sciences
0.370%, VAR ICE LIBOR USD 3 Month+0.150%, 09/17/2021		325		325
Royalty Pharma
0.750%, 09/02/2023 (B)		200		201
Stryker
0.600%, 12/01/2023		160		160
Syneos Health
3.625%, 01/15/2029 (B)		324		327
				3,206
Industrials — 1.3%
AerCap Ireland Capital DAC
4.450%, 12/16/2021		2,000		2,060
AerCap Ireland Capital DAC / AerCap Global Aviation Trust
4.500%, 05/15/2021		350		355
Ardagh Packaging Finance
5.250%, 04/30/2025 (B)		573		604
Boeing
2.300%, 08/01/2021		210		212

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   87

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Clark Equipment
5.875%, 06/01/2025 (B)	$	932	$	982
CP Atlas Buyer
7.000%, 12/01/2028 (B)		207		214
DAE Funding LLC
5.250%, 11/15/2021 (B)		325		334
General Electric MTN
5.300%, 02/11/2021		200		202
GFL Environmental
8.500%, 05/01/2027 (B)		990		1,094
Honeywell International
0.483%, 08/19/2022		325		326
Intelligent Packaging Finco
6.000%, 09/15/2028 (B)		1,714		1,822
L3Harris Technologies
1.000%, VAR ICE LIBOR USD 3 Month+0.750%, 03/10/2023		350		353
Mileage Plus Holdings LLC
6.500%, 06/20/2027 (B)		776		842
Otis Worldwide
0.684%, VAR ICE LIBOR USD 3 Month+0.450%, 04/05/2023		360		360
PowerTeam Services LLC
9.033%, 12/04/2025 (B)		700		768
Raytheon Technologies
3.100%, 11/15/2021 (B)		393		400
2.800%, 03/15/2022 (B)		275		283
Roper Technologies
0.450%, 08/15/2022		90		90
SRM Escrow Issuer LLC
6.000%, 11/01/2028 (B)		1,044		1,083
Vertical Holdco GmbH
7.625%, 07/15/2028 (B)		460		493
Vertical US Newco
5.250%, 07/15/2027 (B)		492		516
XPO Logistics
6.250%, 05/01/2025 (B)		380		407
				13,800
Information Technology — 0.3%
Avaya
6.125%, 09/15/2028 (B)		496		523
Diebold Nixdorf
9.375%, 07/15/2025 (B)		1,083		1,188
Hewlett Packard Enterprise
0.954%, VAR ICE LIBOR USD 3 Month+0.720%, 10/05/2021		300		300
Microchip Technology
3.922%, 06/01/2021		465		473

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Tempo Acquisition LLC
5.750%, 06/01/2025 (B)	$	441	$	470
				2,954
Materials — 0.2%
Chemours
5.750%, 11/15/2028 (B)		687		698
LYB International Finance III LLC
1.230%, VAR ICE LIBOR USD 3 Month+1.000%, 10/01/2023		275		275
Nutrition & Biosciences
0.697%, 09/15/2022 (B)		105		106
Owens-Brockway Glass Container
6.625%, 05/13/2027 (B)		291		315
Venator Finance Sarl
9.500%, 07/01/2025 (B)		324		355
				1,749
Utilities — 0.4%
Dominion Energy
2.450%, 01/15/2023 (B)		250		260
0.776%, VAR ICE LIBOR USD 3 Month+0.530%, 09/15/2023		275		275
DTE Energy
0.550%, 11/01/2022		275		276
Duke Energy Progress LLC
0.400%, VAR ICE LIBOR USD 3 Month+0.180%, 02/18/2022		450		450
Edison International
3.125%, 11/15/2022		2,000		2,068
NextEra Energy Capital Holdings
3.300%, 08/15/2022		140		147
Southern Power
0.777%, VAR ICE LIBOR USD 3 Month+0.550%, 12/20/2020 (B)		375		375
				3,851
Total Corporate Obligations (Cost $54,828) ($ Thousands)				55,982
COMMERCIAL PAPER — 1.4%
Australia & New Zealand
0.110%, 12/11/2020 (F)		12,000		12,000
Toronto-Dominion Bank
0.110%, 12/03/2020 (F)		1,500		1,500
Total Commercial Paper (Cost $13,500) ($ Thousands)				13,500

  88   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
U.S. TREASURY OBLIGATIONS — 1.0%
U.S. Treasury Bills
0.160%, 05/20/2021 (F)	$	850	$	850
0.140%, 08/12/2021 (F)		2,300		2,298
0.140%, 10/07/2021 (F)		1,150		1,149
U.S. Treasury Notes
2.875%, 11/15/2021		2,500		2,566
2.375%, 03/15/2022		1,000		1,029
2.000%, 05/31/2024		2,000		2,123
Total U.S. Treasury Obligations (Cost $9,857) ($ Thousands)				10,015
MUNICIPAL BONDS — 0.2%
California — 0.1%
California State, GO Callable 10/01/2021 @ 100
0.933%, 04/01/2047 (G)		925		925
California State, Infrastructure & Economic Development Bank, AMT, RB Callable 07/01/2021 @ 100
0.450%, 01/01/2050 (B)(G)		300		300
University of California, Ser BF, RB
0.455%, 05/15/2022		30		30
				1,255
Illinois — 0.0%
Chicago, Transit Authority, Ser B, RB
1.838%, 12/01/2023		110		111
Nevada — 0.0%
Nevada State, Department of Business & Industry, AMT, RB Callable 07/01/2021 @ 100
0.500%, 01/01/2050 (B)(G)		125		125
Ohio — 0.1%
Buckeye, Tobacco Settlement Financing Authority, RB
1.850%, 06/01/2029		445		450
Texas — 0.0%
Central Texas, Turnpike System, Ser B, RB
1.980%, 08/15/2042 (G)		190		192
City of Houston, Texas Airport System Revenue, Sub-Ser C, RB
0.883%, 07/01/2022		45		45
				237
Total Municipal Bonds (Cost $2,170) ($ Thousands)				2,178

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
U.S. GOVERNMENT AGENCY OBLIGATIONS — 0.1%
FFCB
1.900%, 06/24/2021	$	470	$	475
0.530%, 01/18/2022		500		502
Total U.S. Government Agency Obligations (Cost $974) ($ Thousands)				977
	Number of Warrants
WARRANT — 0.0%
Lion Holdings, Expires 12/30/2027
Strike Price $– *(D)(H)		29,715		–
Total Warrant (Cost $—) ($ Thousands)				–
	Shares
COMMON STOCK — 0.0%
TE Holdcorp *(D)		102,547		–
Total Common Stock (Cost $3,175) ($ Thousands)				–
PREFERRED STOCK — 0.0%
TE Holdcorp *(D)(I)		179,484		–
Total Preferred Stock (Cost $1,427) ($ Thousands)				–
CASH EQUIVALENT — 4.4%
SEI Daily Income Trust, Government Fund, Cl F
0.010%**†		43,348,443		43,348
Total Cash Equivalent (Cost $43,348) ($ Thousands)				43,348

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   89

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Opportunistic Income Fund (Concluded)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
REPURCHASE AGREEMENT — 0.7%
BNP Paribas
0.090%, dated 11/30/20, to be repurchased on 12/01/20, repurchase price $6,900,017 (collateralized by U.S. Government Obligations, ranging in par value $32 - $4,961,207, 2.500% -5.000%, 5/01/2034 - 5/01/2050; total market value $7,038,000) (J)	$	6,900	$	6,900
Total Repurchase Agreement (Cost $6,900) ($ Thousands)				6,900
Total Investments in Securities — 104.4% (Cost $1,033,075) ($ Thousands)			$	1,025,646

A list of the open future contracts held by the Fund at November 30, 2020, is as follows:

Type of Contract	Number of Contracts Long/(Short)		Expiration Date		Notional Amount (Thousands)		Value (Thousands)		Unrealized (Depreciation) (Thousands)
U.S. 10-Year Treasury Note		(53)		Mar-2021	$	(7,310)	$	(7,323)	$	(13)
U.S. 2-Year Treasury Note		(142)		Apr-2021		(31,349)		(31,361)		(12)
U.S. 5-Year Treasury Note		(118)		Apr-2021		(14,854)		(14,872)		(18)
U.S. Long Treasury Bond		(1)		Mar-2021		(174)		(175)		(1)
					$	(53,687)	$	(53,731)	$	(44)

Percentages are based on Net Assets of $982,163 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

† Investment in Affiliated Security (see Note 6).

(A) Variable or floating rate security, the interest rate of which adjusts periodically based on changes in current interest rates and prepayments on the underlying pool of assets.

(B) Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration normally to qualified institutions. On November 30, 2020, the value of these securities amounted to $381,038 ($ Thousands), representing 38.8% of the Net Assets of the Fund.

(C) Unsettled bank loan. Interest rate may not be available.

(D) Level 3 security in accordance with fair value hierarchy.

(E) Interest rate unavailable.

(F) Zero coupon security. The rate shown on the Schedule of Investments is the security’s effective yield at the time of purchase.

(G) Variable or floating rate security, the interest rate of which adjusts periodically based on prevailing interest rates.

(H) Security fair valued using methods determined in good faith by the Valuation Committee of the Board of Trustees. The total market value of such securities as of November 30, 2020 was $- ($

Thousands) and represented 0.0% of the Net Assets of the Fund.

(I) There is currently no rate available.

(J) Tri-Party Repurchase Agreement.

AMT — Alternative Minimum Tax

ARM — Adjustable Rate Mortgage

Cl — Class

CLO — Collateralized Loan Obligation

CMO — Collateralized Mortgage Obligation

DAC — Designated Activity Company

FFCB — Federal Farm Credit Bank

FHLMC — Federal Home Loan Mortgage Corporation

FNMA — Federal National Mortgage Association

FREMF — Freddie Mac Multi-Family

GNMA — Government National Mortgage Association

GO — General Obligation

ICE — Intercontinental Exchange

IO — Interest Only — face amount represents notional amount.

LIBOR— London Interbank Offered Rate

LLC — Limited Liability Company

LP — Limited Partnership Ltd. — Limited

MTN — Medium Term Note

NCUA — National Credit Union Association

RB — Revenue Bond

REIT — Real Estate investment Trust

REMIC — Real Estate Mortgage Investment Conduit Ser — Series

STRIPS — Separately Traded Registered Interest and Principal Securities

USD — United States Dollar

VAR — Variable Rate

  90   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1 ($)		Level 2 ($)		Level 3 ($)(1)		Total ($)
Mortgage-Backed Securities		–		352,355		–		352,355
Loan Participations		–		282,704		5,184		287,888
Asset-Backed Securities		–		252,503		–		252,503
Corporate Obligations		–		55,982		–		55,982
Commercial Paper		–		13,500		–		13,500
U.S. Treasury Obligations		–		10,015		–		10,015
Municipal Bonds		–		2,178		–		2,178
U.S. Government Agency Obligations		–		977		–		977
Warrant		–		–		–		–
Common Stock		–		–		–		–
Preferred Stock		–		–		–		–
Cash Equivalent		43,348		–		–		43,348
Repurchase Agreement		–		6,900		–		6,900
Total Investments in Securities		43,348		977,114		5,184		1,025,646
Other Financial Instruments	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total ($)
Future Contracts*
Unrealized Depreciation		(44)		–		–		(44)
Total Other Financial Instruments		(44)		–		–		(44)

* Future contracts are valued at the unrealized depreciation on the instrument.

The following is a reconciliation of investments in which significant unobservable inputs (Level 3) were used in determining value ($ Thousands):

	Investments in Corporate Obligations			Investments in Loan Participations
Balance as of June 1, 2020	$	676		$	23,123
Accrued discounts/premiums		(1,240	)		6
Realized gain/(loss)		–			236
Change in unrealized appreciation/ (depreciation)		1,240			510
Purchases		–			(26	)
Sales		–			(5,810	)
Net transfer into Level 3		–			373
Net transfer out of Level 3		(676	)		(13,228	)
Ending Balance as of November 30, 2020	$	–		$	5,184
Changes in unrealized gains/(losses) included in earnings related to securities still held at reporting date	$	(1,240	)	$	510

For the period ended November 30, 2020, there were transfers in and out of Level 3. The transfers were due to changes in the availability of observable inputs used to determine fair value.

For more information on valuation inputs, see Note 2 – Significant Accounting Policies in Notes to Financial Statements.

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Daily Income Trust, Government Fund, Cl F	$ 62,317	$ 229,502	$ (248,471)	$ —	$ —	$ 43,348	43,348,443	$ 3	$ —

Amounts designated as “—” are $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   91

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund

^†Percentages are based on total investments. Includes investments held as collateral for securities held on loan (see Note 12).

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES — 33.0%
Agency Mortgage-Backed Obligations — 28.7%
FHLMC
10.000%, 03/17/2026	$	1	$	1
7.500%, 08/01/2030 to 12/01/2036		312		356
7.000%, 05/01/2024 to 03/01/2039		97		110
6.500%, 10/01/2031 to 09/01/2039		643		746
6.000%, 09/01/2021 to 08/01/2038		699		806
5.500%, 02/01/2035 to 12/01/2038		1,769		2,092
5.000%, 08/01/2033 to 03/01/2050		32,423		36,140
4.500%, 11/01/2025 to 06/01/2050		34,969		38,619
4.000%, 01/01/2035 to 10/01/2050		66,667		73,313
3.500%, 03/01/2033 to 05/01/2050		144,143		155,705
3.000%, 03/01/2031 to 08/01/2050		77,296		81,741
2.500%, 10/01/2031 to 09/01/2050		14,755		15,562
2.000%, 10/01/2032 to 09/01/2040		10,138		10,553
FHLMC ARM
4.129%, VAR ICE LIBOR USD 12 Month+2.330%, 05/01/2036		46		50
3.908%, VAR ICE LIBOR USD 12 Month+1.924%, 12/01/2036		52		55
2.376%, VAR US Treas Yield Curve Rate T Note Const Mat 5 Yr+1.286%, 03/01/2047		1,159		1,200
2.147%, VAR ICE LIBOR USD 12 Month+1.595%, 10/01/2036		11		11
FHLMC CMO, Ser 2020-4988, Cl AF
0.499%, VAR ICE LIBOR USD 1 Month+0.350%, 10/15/2037		5,985		5,983

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FHLMC CMO, Ser 2020-5010, Cl JI, IO
2.500%, 09/25/2050	$	1,385	$	172
FHLMC CMO, Ser 2020-5010, Cl IK, IO
2.500%, 09/25/2050		593		69
FHLMC CMO, Ser 2020-5013, Cl IN, IO
2.500%, 09/25/2050		596		77
FHLMC CMO, Ser 2020-5018, Cl MI, IO
2.000%, 10/25/2050		994		125
FHLMC CMO, Ser 2020-5040, Cl IB, IO
2.500%, 11/25/2050		399		46
FHLMC Multiclass Certificates, Ser 2020- RR02, Cl BX, IO
1.666%, 08/27/2028 (A)		2,000		214
FHLMC Multifamily Structured Pass-Through Certificates, Ser 1514, Cl A2
2.859%, 10/25/2034		825		948
FHLMC Multifamily Structured Pass-Through Certificates, Ser K016, Cl X1, IO
1.638%, 10/25/2021 (A)		437		3
FHLMC Multifamily Structured Pass-Through Certificates, Ser K032, Cl X1, IO
0.204%, 05/25/2023 (A)		59,917		154
FHLMC Multifamily Structured Pass-Through Certificates, Ser K047, Cl A2
3.329%, 05/25/2025 (A)		605		674
FHLMC Multifamily Structured Pass-Through Certificates, Ser K091, Cl X1, IO
0.704%, 03/25/2029 (A)		3,938		167
FHLMC Multifamily Structured Pass-Through Certificates, Ser K092, Cl X1, IO
0.852%, 04/25/2029 (A)		9,985		529
FHLMC Multifamily Structured Pass-Through Certificates, Ser K093, Cl X1, IO
1.092%, 05/25/2029 (A)		3,990		277
FHLMC Multifamily Structured Pass-Through Certificates, Ser K094, Cl XAM, IO
1.283%, 06/25/2029 (A)		4,850		436
FHLMC Multifamily Structured Pass-Through Certificates, Ser K094, Cl X1, IO
1.016%, 06/25/2029 (A)		2,997		197
FHLMC Multifamily Structured Pass-Through Certificates, Ser K095, Cl XAM, IO
1.372%, 06/25/2029 (A)		700		68
FHLMC Multifamily Structured Pass-Through Certificates, Ser K095, Cl X1, IO
1.082%, 06/25/2029 (A)		2,395		168
FHLMC Multifamily Structured Pass-Through Certificates, Ser K099, Cl X1, IO
1.006%, 09/25/2029 (A)		1,088		73
FHLMC Multifamily Structured Pass-Through Certificates, Ser K101, Cl X1, IO
0.949%, 10/25/2029 (A)		1,198		77

  92   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FHLMC Multifamily Structured Pass-Through Certificates, Ser K1516, Cl A1
1.238%, 01/25/2035	$	3,214	$	3,169
FHLMC Multifamily Structured Pass-Through Certificates, Ser K157, Cl A3
3.990%, 08/25/2033 (A)		4,400		5,441
FHLMC Multifamily Structured Pass-Through Certificates, Ser K158, Cl A3
3.900%, 10/25/2033 (A)		3,345		4,104
FHLMC Multifamily Structured Pass-Through Certificates, Ser K726, Cl X1, IO
1.024%, 04/25/2024 (A)		12,399		285
FHLMC Multifamily Structured Pass-Through Certificates, Ser K735, Cl X1, IO
1.095%, 05/25/2026 (A)		2,275		106
FHLMC Multifamily Structured Pass-Through Certificates, Ser K736, Cl X1, IO
1.437%, 07/25/2026 (A)		1,999		123
FHLMC Multifamily Structured Pass-Through Certificates, Ser K737, Cl X1, IO
0.751%, 10/25/2026 (A)		6,991		229
FHLMC Multifamily Structured Pass-Through Certificates, Ser KC05, Cl X1, IO
1.342%, 06/25/2027 (A)		1,577		90
FHLMC Multifamily Structured Pass-Through Certificates, Ser KLU1, Cl A4
2.854%, 01/25/2031		1,115		1,241
FHLMC Multifamily Structured Pass-Through Certificates, Ser KSG1, Cl A2
1.503%, 09/25/2030		1,685		1,733
FHLMC Multifamily Structured Pass-Through Certificates, Ser X3FX, Cl A2FX
3.000%, 06/25/2027		2,210		2,380
FHLMC Reference REMIC CMO, Ser 2006-R007, Cl ZA
6.000%, 05/15/2036		876		1,041
FHLMC REMIC CMO, Ser 1999-2174, Cl PN
6.000%, 07/15/2029		11		12
FHLMC REMIC CMO, Ser 2001-2312, Cl Z
6.500%, 05/15/2031		108		121
FHLMC REMIC CMO, Ser 2002-2399, Cl XG
6.500%, 01/15/2032		31		35
FHLMC REMIC CMO, Ser 2003-2671, Cl S
14.500%, 09/15/2033 (A)		41		58
FHLMC REMIC CMO, Ser 2003-2684, Cl ZN
4.000%, 10/15/2033		86		95
FHLMC REMIC CMO, Ser 2004-2733, Cl ME
5.000%, 01/15/2034		206		237
FHLMC REMIC CMO, Ser 2007-3316, Cl JO, PO
0.000%, 05/15/2037 (B)		4		4
FHLMC REMIC CMO, Ser 2008-3451, Cl SB, IO
5.809%, 05/15/2038 (A)		155		26

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FHLMC REMIC CMO, Ser 2009-3546, Cl A
2.346%, 02/15/2039 (A)	$	54	$	56
FHLMC REMIC CMO, Ser 2010-3621, Cl SB, IO
6.089%, 01/15/2040 (A)		86		19
FHLMC REMIC CMO, Ser 2011-3866, Cl SA, IO
5.809%, 05/15/2041 (A)		516		73
FHLMC REMIC CMO, Ser 2012-4010, Cl KM
3.000%, 01/15/2042		566		605
FHLMC REMIC CMO, Ser 2012-4030, Cl HS, IO
6.469%, 04/15/2042 (A)		51		11
FHLMC REMIC CMO, Ser 2012-4102, Cl TC
2.500%, 09/15/2041		2,014		2,099
FHLMC REMIC CMO, Ser 2012-4119, Cl IN, IO
3.500%, 10/15/2032		429		44
FHLMC REMIC CMO, Ser 2013-4161, Cl BA
2.500%, 12/15/2041		4,650		4,831
FHLMC REMIC CMO, Ser 2013-4194, Cl BI, IO
3.500%, 04/15/2043		306		31
FHLMC REMIC CMO, Ser 2013-4205, Cl PA
1.750%, 05/15/2043		1,025		1,058
FHLMC REMIC CMO, Ser 2013-4210, Cl Z
3.000%, 05/15/2043		1,687		1,705
FHLMC REMIC CMO, Ser 2013-4227, Cl VA
3.500%, 10/15/2037		1,300		1,366
FHLMC REMIC CMO, Ser 2014-4368, Cl CA
3.750%, 11/15/2036		541		559
FHLMC REMIC CMO, Ser 2015-4426, Cl QC
1.750%, 07/15/2037		1,817		1,879
FHLMC REMIC CMO, Ser 2015-4479, Cl HA
3.750%, 05/15/2039		1,507		1,565
FHLMC REMIC CMO, Ser 2017-4705, Cl A
4.500%, 09/15/2042		813		838
FHLMC REMIC CMO, Ser 2017-4742, Cl PA
3.000%, 10/15/2047		4,032		4,215
FHLMC REMIC CMO, Ser 2018-4763, Cl CA
3.000%, 09/15/2038		513		554
FHLMC REMIC CMO, Ser 2018-4767, Cl KA
3.000%, 03/15/2048		1,122		1,213
FHLMC REMIC CMO, Ser 2018-4786, Cl DP
4.500%, 07/15/2042		158		159
FHLMC REMIC CMO, Ser 2018-4813, Cl CJ
3.000%, 08/15/2048		948		979
FHLMC REMIC CMO, Ser 2018-4846, Cl PF
0.491%, VAR ICE LIBOR USD 1 Month+0.350%, 12/15/2048		410		412
FHLMC REMIC CMO, Ser 2019-4880, Cl DA
3.000%, 05/15/2050		2,252		2,423
FHLMC STRIPS CMO, Ser 2012-264, Cl 30
3.000%, 07/15/2042		3,612		3,870
FHLMC STRIPS CMO, Ser 2012-271, Cl 30
3.000%, 08/15/2042		1,534		1,640

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   93

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FHLMC STRIPS CMO, Ser 2015-343, Cl F4
0.499%, VAR ICE LIBOR USD 1 Month+0.350%, 10/15/2037	$	1,484	$	1,479
FHLMC STRIPS CMO, Ser 2016-353, Cl S1, IO
5.859%, 12/15/2046 (A)		858		194
FHLMC STRIPS CMO, Ser 2017-356, Cl 300
3.000%, 09/15/2047		4,317		4,556
FNMA
8.000%, 05/01/2023 to 06/01/2031		26		30
7.500%, 06/01/2030 to 11/01/2038		157		180
7.000%, 09/01/2026 to 02/01/2039		907		1,060
6.500%, 12/01/2022 to 10/01/2037		329		369
6.000%, 02/01/2032 to 07/01/2041		2,839		3,361
5.500%, 12/01/2033 to 06/01/2049		11,993		13,964
5.000%, 07/01/2033 to 03/01/2050		71,672		81,223
4.500%, 08/01/2023 to 01/01/2059		119,616		132,851
4.381%, 06/01/2021 (A)		1,336		1,339
4.262%, 11/01/2021 (A)		1,612		1,616
4.200%, 01/01/2029		1,665		1,946
4.000%, 09/01/2033 to 06/01/2057		136,160		148,543
3.980%, 08/01/2021		3,856		3,886
3.820%, 07/01/2027		249		285
3.790%, 12/01/2025		3,185		3,472
3.500%, 07/01/2029 to 03/01/2057		117,825		126,007
3.380%, 05/01/2028		118		126
3.310%, 03/01/2028		1,905		2,119
3.210%, 11/01/2037		4,548		5,246
3.160%, 05/01/2029		324		368
3.080%, 01/01/2028		160		177
3.040%, 06/01/2029		1,000		1,135
3.020%, 06/01/2024 to 05/01/2026		3,400		3,555
3.000%, 05/01/2029 to 09/01/2050		132,932		140,771
2.810%, 04/01/2025		250		270
2.790%, 08/01/2029		600		669
2.698%, 04/01/2023 (A)		133		138
2.500%, 06/01/2028 to 11/01/2050		52,969		56,094
2.455%, 04/01/2040		3,020		3,141
2.320%, 02/01/2032		200		216
2.260%, 04/01/2030		1,087		1,169
2.240%, 10/01/2031		300		321
2.140%, 04/01/2030		200		213
2.000%, 11/01/2035 to 10/01/2040		25,572		26,628
1.950%, 04/01/2032		200		209
1.210%, 11/01/2030		300		299
FNMA ACES, Ser 2014-M3, Cl X2, IO
0.101%, 01/25/2024 (A)		28,875		227
FNMA ACES, Ser 2015-M8, Cl X2, IO
0.227%, 01/25/2025 (A)		75,329		351
FNMA ACES, Ser 2016-M11, Cl AL
2.944%, 07/25/2039		405		412
FNMA ACES, Ser 2017-M7, Cl A2
2.961%, 02/25/2027 (A)		690		775

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FNMA ACES, Ser 2017-M8, Cl A2
3.061%, 05/25/2027 (A)	$	200	$	224
FNMA ACES, Ser 2018-M15, Cl 1A2
3.700%, 01/25/2036		600		712
FNMA ACES, Ser 2019-M27, Cl A2
2.700%, 11/25/2040		400		457
FNMA ACES, Ser 2019-M28, Cl AV
2.232%, 02/25/2027		1,482		1,579
FNMA ACES, Ser 2019-M4, Cl A2
3.610%, 02/25/2031		730		868
FNMA ACES, Ser 2019-M5, Cl A2
3.273%, 02/25/2029		1,260		1,456
FNMA ACES, Ser 2020-M6, Cl A
2.500%, 10/25/2037		193		203
FNMA ARM
3.594%, VAR ICE LIBOR USD 12 Month+1.594%, 12/01/2035		25		25
3.565%, VAR ICE LIBOR USD 12 Month+1.565%, 05/01/2037		3		3
2.761%, VAR ICE LIBOR USD 12 Month+1.580%, 06/01/2045		1,174		1,219
2.678%, VAR ICE LIBOR USD 12 Month+1.585%, 01/01/2046		4,128		4,286
FNMA CMO, Ser 2020-74, Cl EI, IO
2.500%, 10/25/2050		495		67
FNMA CMO, Ser 2020-89, Cl DI, IO
2.500%, 12/25/2050		3,100		373
FNMA Interest STRIPS CMO, Ser 2002-323, Cl 16, IO
7.000%, 01/25/2032		153		24
FNMA Interest STRIPS CMO, Ser 2003-334, Cl 16, IO
6.500%, 02/25/2033		206		41
FNMA Interest STRIPS CMO, Ser 2012-409, Cl C2, IO
3.000%, 04/25/2027		804		43
FNMA Interest STRIPS CMO, Ser 2012-409, Cl C17, IO
4.000%, 11/25/2041		691		93
FNMA Interest STRIPS CMO, Ser 2012-409, Cl C13, IO
3.500%, 11/25/2041		645		57
FNMA Interest STRIPS CMO, Ser 2012-409, Cl C22, IO
4.500%, 11/25/2039		635		97
FNMA Interest STRIPS CMO, Ser 2012-409, Cl C1, IO
3.000%, 11/25/2026		1,069		57
FNMA Interest STRIPS CMO, Ser 2012-411, Cl A3
3.000%, 08/25/2042		2,375		2,488

  94   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FNMA Interest STRIPS CMO, Ser 2012-414,Cl A35
3.500%, 10/25/2042	$	3,315	$	3,552
FNMA REMIC CMO, Ser 1992-143, Cl M
8.000%, 09/25/2022		17		17
FNMA REMIC CMO, Ser 1992-69, Cl Z
8.000%, 05/25/2022		12		13
FNMA REMIC CMO, Ser 1993-149, Cl SH
11.500%, 08/25/2023 (A)		16		18
FNMA REMIC CMO, Ser 1993-99, Cl Z
7.000%, 07/25/2023		76		80
FNMA REMIC CMO, Ser 1994-31, Cl ZC
6.500%, 02/25/2024		61		65
FNMA REMIC CMO, Ser 1994-63, Cl PK
7.000%, 04/25/2024		62		66
FNMA REMIC CMO, Ser 1997-32, Cl PG
6.500%, 04/25/2027		78		87
FNMA REMIC CMO, Ser 1999-11, Cl Z
5.500%, 03/25/2029		97		103
FNMA REMIC CMO, Ser 2001-52, Cl YZ
6.500%, 10/25/2031		15		17
FNMA REMIC CMO, Ser 2003-124, Cl TS
9.800%, 01/25/2034 (A)		8		10
FNMA REMIC CMO, Ser 2005-29, Cl ZA
5.500%, 04/25/2035		293		343
FNMA REMIC CMO, Ser 2005-74, Cl CS
19.607%, 05/25/2035 (A)		57		73
FNMA REMIC CMO, Ser 2006-104, Cl MI, IO
6.600%, 11/25/2036 (A)		535		73
FNMA REMIC CMO, Ser 2006-125, Cl SM, IO
7.050%, 01/25/2037 (A)		396		87
FNMA REMIC CMO, Ser 2006-33, Cl LS
29.474%, 05/25/2036 (A)		58		98
FNMA REMIC CMO, Ser 2006-46, Cl SW
23.649%, 06/25/2036 (A)		44		72
FNMA REMIC CMO, Ser 2006-51, Cl SP, IO
6.500%, 03/25/2036 (A)		67		10
FNMA REMIC CMO, Ser 2007-64, Cl FA
0.620%, VAR ICE LIBOR USD 1 Month+0.470%, 07/25/2037		8		8
FNMA REMIC CMO, Ser 2007-68, Cl SC, IO
6.550%, 07/25/2037 (A)		147		29
FNMA REMIC CMO, Ser 2008-22, Cl SI, IO
6.280%, 03/25/2037 (A)		523		11
FNMA REMIC CMO, Ser 2008-24, Cl NA
6.750%, 06/25/2037		13		15
FNMA REMIC CMO, Ser 2009-103, Cl MB
3.004%, 12/25/2039 (A)		79		82
FNMA REMIC CMO, Ser 2009-86, Cl BO, PO
0.000%, 03/25/2037 (B)		862		819
FNMA REMIC CMO, Ser 2010-123, Cl PM
4.000%, 07/25/2040		2,215		2,362

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FNMA REMIC CMO, Ser 2010-150, Cl SK, IO
6.380%, 01/25/2041 (A)	$	514	$	132
FNMA REMIC CMO, Ser 2010-27, Cl AS, IO
6.330%, 04/25/2040 (A)		598		144
FNMA REMIC CMO, Ser 2011-2, Cl WA
5.852%, 02/25/2051 (A)		81		94
FNMA REMIC CMO, Ser 2011-75, Cl FA
0.700%, VAR ICE LIBOR USD 1 Month+0.550%, 08/25/2041		77		77
FNMA REMIC CMO, Ser 2011-96, Cl SA, IO
6.400%, 10/25/2041 (A)		1,215		255
FNMA REMIC CMO, Ser 2012-133, Cl CS, IO
6.000%, 12/25/2042 (A)		740		146
FNMA REMIC CMO, Ser 2012-134, Cl MS, IO
6.000%, 12/25/2042 (A)		312		62
FNMA REMIC CMO, Ser 2012-151, Cl NX
1.500%, 01/25/2043		1,402		1,449
FNMA REMIC CMO, Ser 2012-28, Cl B
6.500%, 06/25/2039		14		16
FNMA REMIC CMO, Ser 2012-35, Cl SC, IO
6.350%, 04/25/2042 (A)		337		73
FNMA REMIC CMO, Ser 2012-46, Cl BA
6.000%, 05/25/2042		412		483
FNMA REMIC CMO, Ser 2012-70, Cl YS, IO
6.500%, 02/25/2041 (A)		98		7
FNMA REMIC CMO, Ser 2012-74, Cl SA, IO
6.500%, 03/25/2042 (A)		545		107
FNMA REMIC CMO, Ser 2012-74, Cl OA, PO
0.000%, 03/25/2042 (B)		37		35
FNMA REMIC CMO, Ser 2012-75, Cl NS, IO
6.450%, 07/25/2042 (A)		171		38
FNMA REMIC CMO, Ser 2012-75, Cl AO, PO
0.000%, 03/25/2042 (B)		74		70
FNMA REMIC CMO, Ser 2013-101, Cl BO, PO
0.000%, 10/25/2043 (B)		1,065		929
FNMA REMIC CMO, Ser 2013-101, Cl CO, PO
0.000%, 10/25/2043 (B)		2,388		2,082
FNMA REMIC CMO, Ser 2013-11, Cl AP
1.500%, 01/25/2043		3,596		3,677
FNMA REMIC CMO, Ser 2013-124, Cl SB, IO
5.800%, 12/25/2043 (A)		599		118
FNMA REMIC CMO, Ser 2013-26, Cl HI, IO
3.000%, 04/25/2032		482		16
FNMA REMIC CMO, Ser 2013-30, Cl CA
1.500%, 04/25/2043		435		445
FNMA REMIC CMO, Ser 2013-43, Cl BP
1.750%, 05/25/2043		1,464		1,523
FNMA REMIC CMO, Ser 2013-54, Cl BS, IO
6.000%, 06/25/ 2043 (A)		361		80
FNMA REMIC CMO, Ser 2013-9, Cl CB
5.500%, 04/25/2042		1,069		1,235

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   95

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value         ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FNMA REMIC CMO, Ser 2013-9, Cl BC
6.500%, 07/25/2042	$	982	$	1,183
FNMA REMIC CMO, Ser 2014-73, Cl MA
2.500%, 11/25/2044		942		1,003
FNMA REMIC CMO, Ser 2015-84, Cl PA
1.700%, 08/25/2033		4,573		4,730
FNMA REMIC CMO, Ser 2016-37, Cl MJ
3.500%, 08/25/2043		572		595
FNMA REMIC CMO, Ser 2016-48, Cl MA
2.000%, 06/25/2038		4,638		4,847
FNMA REMIC CMO, Ser 2016-57, Cl PC
1.750%, 06/25/2046		6,593		6,861
FNMA REMIC CMO, Ser 2016-60, Cl QS, IO
5.950%, 09/25/2046 (A)		1,149		235
FNMA REMIC CMO, Ser 2017-13, Cl PA
3.000%, 08/25/2046		1,506		1,590
FNMA REMIC CMO, Ser 2017-42, Cl H
3.000%, 11/25/2043		1,096		1,135
FNMA REMIC CMO, Ser 2017-76, Cl SB, IO
5.950%, 10/25/2057 (A)		2,087		447
FNMA REMIC CMO, Ser 2017-85, Cl SC, IO
6.050%, 11/25/2047 (A)		680		136
FNMA REMIC CMO, Ser 2018-14, Cl KC
3.000%, 03/25/2048		2,643		2,847
FNMA REMIC CMO, Ser 2018-15, Cl AB
3.000%, 03/25/2048		596		643
FNMA REMIC CMO, Ser 2018-38, Cl PA
3.500%, 06/25/2047		2,503		2,620
FNMA REMIC CMO, Ser 2018-43, Cl CT
3.000%, 06/25/2048		3,441		3,596
FNMA REMIC CMO, Ser 2018-8, Cl KL
2.500%, 03/25/2047		1,945		2,030
FNMA REMIC CMO, Ser 2018-86, Cl JA
4.000%, 05/25/2047		546		566
FNMA REMIC CMO, Ser 2019-1, Cl AB
3.500%, 02/25/2049		1,759		1,870
FNMA REMIC CMO, Ser 2019-25, Cl PA
3.000%, 05/25/2048		2,821		3,026
FNMA REMIC CMO, Ser 2019-35, Cl A
3.000%, 07/25/2049		1,332		1,400
FNMA REMIC CMO, Ser 2019-45, Cl PA
3.000%, 08/25/2049		1,351		1,421
FNMA REMIC CMO, Ser 2019-52, Cl PA
3.000%, 09/25/2049		524		545
FNMA REMIC CMO, Ser 2019-79, Cl FA
0.650%, VAR ICE LIBOR USD 1
Month+0.500%, 01/25/2050		3,996		4,032
FNMA REMIC CMO, Ser 2020-47, Cl GZ
2.000%, 07/25/2050		706		715
FNMA REMIC CMO, Ser 2020-56, Cl DI, IO
2.500%, 08/25/2050		983		133

Description	Face Amount (Thousands)		Market Value         ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FNMA TBA
5.000%, 12/01/2037	$	4,830	$	5,344
4.000%, 12/14/2039		6,990		7,457
3.500%, 12/01/2040		1,706		1,805
3.000%, 12/25/2028		1,450		1,518
2.500%, 12/01/2027		1,934		2,011
FREMF Mortgage Trust, Ser 2011-K11, Cl B
4.570%, 12/25/2048 (A)(C)		74		74
FREMF Mortgage Trust, Ser 2012-K20, Cl X2A, IO
0.200%, 05/25/2045 (C)		24,305		56
GNMA
7.000%, 04/15/2026 to 10/15/2032		511		561
6.500%, 01/15/2024 to 07/15/2035		1,038		1,172
6.000%, 12/15/2023 to 10/20/2040		3,153		3,723
5.000%, 10/15/2039 to 04/20/2050		34,885		38,561
4.700%, 09/20/2061 (A)		1,047		1,081
4.500%, 01/20/2040 to 09/20/2049		35,353		38,660
4.187%, 01/20/2069 (A)		93		97
4.000%, 06/20/2047 to 07/20/2050		59,185		63,918
3.769%, 04/20/2063 (A)		335		344
3.500%, 06/20/2044 to 05/15/2050		40,107		43,267
3.000%, 09/15/2042 to 09/20/2050		67,099		70,864
GNMA ARM
3.250%, VAR US Treas Yield
Curve Rate T Note Const Mat 1 Yr+1.500%, 07/20/2034		6		6
1.590%, VAR US Treas Yield Curve Rate
T Note Const Mat 1 Yr+1.440%, 01/20/2060		565		575
GNMA CMO, Ser 2003-60, Cl GS
12.182%, 05/16/2033 (A)		9		10
GNMA CMO, Ser 2005-7, Cl JM
16.410%, 05/18/2034 (A)		1		2
GNMA CMO, Ser 2006-16, Cl GS, IO
6.844%, 04/20/2036 (A)		373		78
GNMA CMO, Ser 2007-78, Cl SA, IO
6.389%, 12/16/2037 (A)		2,600		435
GNMA CMO, Ser 2009-106, Cl KS, IO
6.254%, 11/20/2039 (A)		2,953		551
GNMA CMO, Ser 2009-66, Cl XS, IO
6.659%, 07/16/2039 (A)		23		4
GNMA CMO, Ser 2009-66, Cl LC
6.000%, 08/16/2039		1,708		1,963
GNMA CMO, Ser 2009-8, Cl PS, IO
6.159%, 08/16/2038 (A)		21		2
GNMA CMO, Ser 2010-31, Cl GS, IO
6.349%, 03/20/2039 (A)		–		–
GNMA CMO, Ser 2010-4, Cl NS, IO
6.249%, 01/16/2040 (A)		4,264		889
GNMA CMO, Ser 2010-4, Cl SL, IO
6.259%, 01/16/2040 (A)		92		20

  96   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value         ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
GNMA CMO, Ser 2010-59, Cl LB
4.500%, 10/20/2039	$	575	$	611
GNMA CMO, Ser 2010-85, Cl HS, IO
6.504%, 01/20/2040 (A)		181		15
GNMA CMO, Ser 2010-H10, Cl FC
1.156%, VAR ICE LIBOR USD 1
Month+1.000%, 05/20/2060		1,839		1,863
GNMA CMO, Ser 2010-H26, Cl LF
0.490%, VAR ICE LIBOR USD 1
Month+0.350%, 08/20/2058		2,661		2,658
GNMA CMO, Ser 2011-146, Cl EI, IO
5.000%, 11/16/2041		42		8
GNMA CMO, Ser 2011-H09, Cl AF
0.640%, VAR ICE LIBOR USD 1
Month+0.500%, 03/20/2061		761		762
GNMA CMO, Ser 2012-112, IO
0.182%, 02/16/2053 (A)		4,487		39
GNMA CMO, Ser 2012-124, Cl AS, IO
6.059%, 10/16/2042 (A)		543		126
GNMA CMO, Ser 2012-141, Cl WA
4.537%, 11/16/2041 (A)		455		508
GNMA CMO, Ser 2012-142, IO
0.681%, 04/16/2054 (A)		12,841		217
GNMA CMO, Ser 2012-27, IO
0.894%, 04/16/2053 (A)		8,513		196
GNMA CMO, Ser 2012-66, Cl CI, IO
3.500%, 02/20/2038		314		7
GNMA CMO, Ser 2012-98, Cl SA, IO
5.959%, 08/16/2042 (A)		437		95
GNMA CMO, Ser 2012-H07, Cl KI, IO
1.242%, 03/20/2062 (A)		469		14
GNMA CMO, Ser 2013-145, IO
1.180%, 09/16/2044 (A)		160		16
GNMA CMO, Ser 2013-163, IO
1.234%, 02/16/2046 (A)		4,779		214
GNMA CMO, Ser 2013-H01, Cl JA
0.460%, VAR ICE LIBOR USD 1
Month+0.320%, 01/20/2063		763		762
GNMA CMO, Ser 2013-H01, Cl TA
0.640%, VAR ICE LIBOR USD 1
Month+0.500%, 01/20/2063		15		15
GNMA CMO, Ser 2014-186, IO
0.695%, 08/16/2054 (A)		7,906		259
GNMA CMO, Ser 2014-47, Cl IA, IO
0.128%, 02/16/2048 (A)		943		13
GNMA CMO, Ser 2014-50, IO
0.671%, 09/16/2055 (A)		3,718		142
GNMA CMO, Ser 2014-H04, Cl FB
0.790%, VAR ICE LIBOR USD 1
Month+0.650%, 02/20/2064		1,743		1,753
GNMA CMO, Ser 2016-135, Cl SB, IO
5.959%, 10/16/2046 (A)		443		129

Description	Face Amount (Thousands)		Market Value         ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
GNMA CMO, Ser 2016-84, Cl IG, IO
4.500%, 11/16/2045	$	162	$	30
GNMA CMO, Ser 2017-167, Cl BQ
2.500%, 08/20/2044		1,638		1,698
GNMA CMO, Ser 2018-11, Cl PC
2.750%, 12/20/2047		3,401		3,544
GNMA CMO, Ser 2018-H06, Cl PF
0.440%, VAR ICE LIBOR USD 1
Month+0.300%, 02/20/2068		785		783
GNMA CMO, Ser 2018-H07, Cl FD
0.440%, VAR ICE LIBOR USD 1
Month+0.300%, 05/20/2068		1,396		1,392
GNMA CMO, Ser 2019-123, Cl A
3.000%, 10/20/2049		543		559
GNMA CMO, Ser 2019-132, Cl NA
3.500%, 09/20/2049		2,466		2,593
GNMA CMO, Ser 2019-15, Cl GT
3.500%, 02/20/2049		2,779		2,960
GNMA CMO, Ser 2019-31, Cl JC
3.500%, 03/20/2049		1,469		1,552
GNMA CMO, Ser 2019-71, Cl PT
3.000%, 06/20/2049		613		636
GNMA CMO, Ser 2019-90, Cl AB
3.000%, 07/20/2049		750		778
GNMA CMO, Ser 2020-123, Cl NI, IO
2.500%, 08/20/2050		1,295		179
GNMA CMO, Ser 2020-123, Cl IL, IO
2.500%, 08/20/2050		399		54
GNMA CMO, Ser 2020-127, Cl IN, IO
2.500%, 08/20/2050		597		78
GNMA CMO, Ser 2020-129, Cl IE, IO
2.500%, 09/20/2050		496		66
GNMA CMO, Ser 2020-160, Cl IH, IO
2.500%, 10/20/2050		400		56
GNMA CMO, Ser 2020-160, Cl VI, IO
2.500%, 10/20/2050		596		84
GNMA CMO, Ser 2020-160, Cl YI, IO
2.500%, 10/20/2050		1,900		265
GNMA CMO, Ser 2020-47, Cl NI, IO
3.500%, 04/20/2050		387		66
GNMA CMO, Ser 2020-47, Cl MI, IO
3.500%, 04/20/2050		1,161		193
GNMA CMO, Ser 2020-H12, Cl F
0.647%, VAR ICE LIBOR USD 1
Month+0.500%, 07/20/2070		199		200
GNMA CMO, Ser 2020-H13, Cl FA
0.597%, VAR ICE LIBOR USD 1
Month+0.450%, 07/20/2070		797		797
GNMA TBA
2.500%, 05/09/2026 to 01/15/2051		52,300		55,043
2.000%, 04/20/2050 to 01/15/2051		109,825		114,647

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   97

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value         ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
GNMA, Ser 2013-107, Cl AD
2.695%, 11/16/2047 (A)	$	780	$	824
GNMA, Ser 2015-167, Cl OI, IO
4.000%, 04/16/2045		321		46
GNMA, Ser 2016-128, IO
0.897%, 09/16/2056 (A)		9,423		546
GNMA, Ser 2017-135, Cl AG
2.600%, 08/16/2058		752		787
GNMA, Ser 2017-145, IO
0.623%, 04/16/2057 (A)		4,143		198
GNMA, Ser 2017-157, IO
0.567%, 12/16/2059 (A)		3,220		158
GNMA, Ser 2017-190, IO
0.621%, 03/16/2060 (A)		5,755		281
GNMA, Ser 2017-8, IO
0.649%, 08/16/2058 (A)		3,356		166
GNMA, Ser 2019-28, Cl AB
3.150%, 06/16/2060		1,421		1,493
GNMA, Ser 2020-41, IO
0.708%, 07/16/2058 (A)		1,467		74
GNMA, Ser 2020-H09, Cl NF
1.397%, VAR ICE LIBOR USD 1
Month+1.250%, 04/20/2070		374		386
GNMA, Ser 2020-H09, Cl FL
1.297%, VAR ICE LIBOR USD 1
Month+1.150%, 05/20/2070		1,398		1,465
NCUA Guaranteed Notes CMO, Ser 2010-R3, Cl 2A
0.698%, VAR ICE LIBOR USD 1
Month+0.560%, 12/08/2020		178		178
NCUA Guaranteed Notes CMO, Ser 2010-R3, Cl 1A
0.698%, VAR ICE LIBOR USD 1
Month+0.560%, 12/08/2020		194		194
UMBS TBA
4.500%, 12/01/2040		11,214		12,153
4.000%, 11/12/2039		6,990		7,440
3.500%, 12/01/2040		20,953		22,101
3.000%, 12/12/2042		11,795		12,321
2.500%, 12/01/2042 to 01/01/2043		49,452		51,772
2.000%, 12/15/2035 to 02/15/2051		365,482		378,749
1.500%, 12/15/2035 to 02/15/2051		37,028		37,734
				2,348,011
Non-Agency Mortgage-Backed Obligations — 4.3%
American Home Mortgage Investment Trust, Ser 2005-1, Cl 1A2
0.709%, VAR ICE LIBOR USD 1
Month+0.280%, 06/25/2045		2,324		2,282
Angel Oak Mortgage Trust I LLC, Ser 2019-2, Cl A1
3.628%, 03/25/2049 (A)(C)		585		599

Description	Face Amount (Thousands)		Market Value         ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Angel Oak Mortgage Trust, Ser 2020-2, Cl A1A
2.531%, 01/26/2065 (A)(C)	$	2,278	$	2,325
Angel Oak Mortgage Trust, Ser 2020-5, Cl A1
1.373%, 05/25/2065 (A)(C)		786		787
Aventura Mall Trust, Ser 2018-AVM, Cl A
4.249%, 07/05/2040 (A)(C)		750		809
BAMLL Commercial Mortgage Securities Trust, Ser 2018-PARK, Cl A
4.227%, 08/10/2038 (A)(C)		2,640		3,069
Banc of America Alternative Loan Trust, Ser 2006-8, Cl 3A1
4.085%, 11/25/2021 (A)		9		7
Banc of America Alternative Loan Trust, Ser 2007-1, Cl 2A1
5.888%, 04/25/2037 (A)		73		74
Banc of America Funding Trust, Ser 2003-2, Cl 1A1
6.500%, 06/25/2032		6		6
Banc of America Funding Trust, Ser 2004-2, Cl 1CB1
5.750%, 09/20/2034		77		83
Banc of America Funding Trust, Ser 2004-C, Cl 1A1
3.232%, 12/20/2034 (A)		25		25
Banc of America Funding Trust, Ser 2005-B, Cl 2A1
3.608%, 04/20/2035 (A)		968		899
Banc of America Funding Trust, Ser 2006-G, Cl 2A4
0.727%, VAR ICE LIBOR USD 1
Month+0.580%, 07/20/2036		1,158		1,168
Banc of America Funding Trust, Ser 2015-R2, Cl 9A1
0.365%, VAR ICE LIBOR USD 1
Month+0.215%, 03/27/2036 (C)		659		659
BANK, Ser 2017-BNK7, Cl A5
3.435%, 09/15/2060		1,170		1,326
BANK, Ser 2019-BN19, Cl A3
3.183%, 08/15/2061		385		435
BANK, Ser 2019-BN23, Cl A3
2.920%, 12/15/2052		165		183
BBCMS Mortgage Trust, Ser 2020-C6, Cl A2
2.690%, 02/15/2053		1,205		1,268
BBCMS Trust, Ser 2015-SRCH, Cl A1
3.312%, 08/10/2035 (C)		835		878
BBCMS Trust, Ser 2018-CBM, Cl A
1.141%, VAR ICE LIBOR USD 1
Month+1.000%, 07/15/2037 (C)		2,705		2,597
BCAP LLC Trust, Ser 2009-RR5, Cl 8A1
5.500%, 11/26/2034 (A)(C)		15		15

  98   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value         ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Bear Stearns Adjustable Rate Mortgage Trust, Ser 2004-2, Cl 14A
3.651%, 05/25/2034 (A)	$	20	$	20
Bear Stearns Commercial Mortgage Securities Trust, Ser 2005-PWR8, Cl X1, IO
0.716%, 06/11/2041 (A)(C)		4		–
Benchmark Mortgage Trust, Ser 2018-B1, Cl ASB
3.602%, 01/15/2051 (A)		263		294
Benchmark Mortgage Trust, Ser 2020-B20, Cl A5
2.034%, 10/15/2053		3,483		3,619
Benchmark Mortgage Trust, Ser B21, Cl A5
1.978%, 12/15/2053		1,745		1,800
BFLD, Ser 2019-DPLO, Cl A
1.231%, VAR ICE LIBOR USD 1
Month+1.090%, 10/15/2034 (C)		1,600		1,568
Bunker Hill Loan Depositary Trust, Ser 2019-1, Cl A1
3.613%, 10/26/2048 (C)		849		884
Bunker Hill Loan Depositary Trust, Ser 2019-2, Cl A1
2.879%, 07/25/2049 (C)		1,509		1,551
Bunker Hill Loan Depositary Trust, Ser 2019-3, Cl A1
2.724%, 11/25/2059 (C)		1,683		1,729
BWAY Mortgage Trust, Ser 2015-1740, Cl A
2.917%, 01/10/2035 (C)		2,420		2,459
BX Commercial Mortgage Trust, Ser 2019- XL, Cl A
1.061%, VAR ICE LIBOR USD 1
Month+0.920%, 10/15/2036 (C)		1,751		1,751
BX Commercial Mortgage Trust, Ser 2020- FOX, Cl A
1.141%, VAR ICE LIBOR USD 1
Month+1.000%, 11/15/2032 (C)		4,320		4,327
BX Trust, Ser 2019-MMP, Cl A
1.141%, VAR ICE LIBOR USD 1
Month+1.000%, 08/15/2036 (C)		520		517
BX Trust, Ser 2019-OC11, Cl A
3.202%, 12/09/2041 (C)		995		1,062
CALI Mortgage Trust, Ser 2019-101C, Cl A
3.957%, 03/10/2029		1,905		2,188
CAMB Commercial Mortgage Trust, Ser 2019- LIFE, Cl A
1.211%, VAR ICE LIBOR USD 1
Month+1.070%, 12/15/2037 (C)		1,715		1,714
CD Commercial Mortgage Trust, Ser 2006- CD2, Cl X, IO
0.023%, 01/15/2046 (A)(C)		276		–
CD Commercial Mortgage Trust, Ser 2007- CD4, Cl XC, IO
1.379%, 12/11/2049 (A)(C)		24		–

Description	Face Amount (Thousands)		Market Value         ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
CD Commercial Mortgage Trust, Ser 2017- CD3, Cl A4
3.631%, 02/10/2050	$	1,240	$	1,400
CD Commercial Mortgage Trust, Ser 2017- CD4, Cl ASB
3.317%, 05/10/2050		734		800
CD Commercial Mortgage Trust, Ser 2017-CD6, Cl ASB
3.332%, 11/13/2050		1,764		1,942
Century Plaza Towers, Ser 2019-CPT, Cl A
2.865%, 11/13/2039 (C)		1,865		2,031
CFCRE Commercial Mortgage Trust, Ser 2017-C8, Cl ASB
3.367%, 06/15/2050		763		830
CFCRE Commercial Mortgage Trust, Ser 2017-C8, Cl A1
1.965%, 06/15/2050		54		54
Chase Mortgage Finance Trust, Ser 2007-A1, Cl 2A1
3.160%, 02/25/2037 (A)		26		26
Chase Mortgage Finance Trust, Ser 2007-A1, Cl 9A1
3.715%, 02/25/2037 (A)		22		22
Chase Mortgage Finance Trust, Ser 2007-A2, Cl 1A1
3.496%, 06/25/2035 (A)		46		44
Chevy Chase Funding Mortgage-Backed Certificates, Ser 2003-4X, Cl A2
0.930%, VAR ICE LIBOR USD 1
Month+0.780%, 10/25/2034		1,582		1,556
Citigroup Commercial Mortgage Trust, Ser 2014-GC25, Cl AS
4.017%, 10/10/2047		880		960
Citigroup Commercial Mortgage Trust, Ser 2016-P5, Cl A1
1.410%, 10/10/2049		54		54
Citigroup Commercial Mortgage Trust, Ser 2019-GC41, Cl A5
2.869%, 08/10/2056		4,120		4,547
Citigroup Global Markets Mortgage Securities VII, Ser 2003-HYB1, Cl A
2.595%, 09/25/2033 (A)		43		43
Citigroup Mortgage Loan Trust, Ser 2004- HYB1, Cl A41
2.921%, 02/25/2034 (A)		5		5
Citigroup Mortgage Loan Trust, Ser 2004- UST1, Cl A6
2.634%, 08/25/2034 (A)		10		10
Citigroup Mortgage Loan Trust, Ser 2009-10, Cl 1A1
2.801%, 09/25/2033 (A)(C)		63		63
COLT Mortgage Loan Trust, Ser 2019-1, Cl A1
3.705%, 03/25/2049 (A)(C)		458		463

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   99

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value         ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
COLT Mortgage Loan Trust, Ser 2019-2, Cl A1
3.337%, 05/25/2049 (A)(C)	$	882	$	888
COLT Mortgage Loan Trust, Ser 2019-4, Cl A1
2.579%, 11/25/2049 (A)(C)		1,277		1,293
COLT Mortgage Loan Trust, Ser 2020-2, Cl A1
1.853%, 03/25/2065 (A)(C)		1,416		1,434
COMM Mortgage Trust, Ser 2013-CR12, Cl AM
4.300%, 10/10/2046		220		229
COMM Mortgage Trust, Ser 2013-CR12, Cl C
5.241%, 10/10/2046 (A)		90		89
COMM Mortgage Trust, Ser 2013-CR12, Cl B
4.762%, 10/10/2046 (A)		190		192
COMM Mortgage Trust, Ser 2013-CR6, Cl A4
3.101%, 03/10/2046		2,879		2,981
COMM Mortgage Trust, Ser 2013-LC13, Cl B
5.009%, 08/10/2046 (A)(C)		1,150		1,208
COMM Mortgage Trust, Ser 2013-LC6, Cl AM
3.282%, 01/10/2046		885		920
COMM Mortgage Trust, Ser 2014-CR14, Cl B
4.767%, 02/10/2047 (A)		350		381
COMM Mortgage Trust, Ser 2014-CR15, Cl A2
2.928%, 02/10/2047		35		35
COMM Mortgage Trust, Ser 2014-UBS2, Cl XA, IO
1.317%, 03/10/2047 (A)		12,445		370
COMM Mortgage Trust, Ser 2014-UBS3, Cl AM
4.012%, 06/10/2047		510		553
COMM Mortgage Trust, Ser 2014-UBS4, Cl A4
3.420%, 08/10/2047		1,530		1,622
COMM Mortgage Trust, Ser 2015CR26, Cl C
4.629%, 10/10/2048 (A)		165		173
COMM Mortgage Trust, Ser 2015-DC1, Cl A2
2.870%, 02/10/2048		17		18
COMM Mortgage Trust, Ser 2015-LC19, Cl XA, IO
1.261%, 02/10/2048 (A)		16,119		623
COMM Mortgage Trust, Ser 2015-LC21, Cl A4
3.708%, 07/10/2048		614		680
COMM Mortgage Trust, Ser 2017-PANW, Cl A
3.244%, 10/10/2029 (C)		1,780		1,863
COMM Mortgage Trust, Ser 2020-CBM, Cl A2
2.896%, 02/10/2037 (C)		2,230		2,221
COMM Mortgage Trust, Ser 2020-CX, Cl A
2.173%, 11/10/2046 (C)		3,290		3,425
Core Mortgage Trust, Ser 2019-CORE, Cl A
1.021%, VAR ICE LIBOR USD 1
Month+0.880%, 12/15/2031 (C)		1,380		1,374
Countrywide Alternative Loan Trust, Ser 2004-27CB, Cl A1
6.000%, 12/25/2034		487		489

Description	Face Amount (Thousands)		Market Value         ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Countrywide Alternative Loan Trust, Ser 2004-J6, PO
0.000%, 11/25/2031 (B)	$	25	$	24
Countrywide Alternative Loan Trust, Ser 2004-J6, Cl 2A1
6.500%, 11/25/2031		204		213
Countrywide Home Loan Mortgage Pass- Through Trust, Ser 2004-14, Cl 4A1
2.662%, 08/25/2034 (A)		108		103
Countrywide Home Loan Mortgage Pass- Through Trust, Ser 2005-20, Cl A7
5.250%, 12/25/2027		139		120
Credit Suisse Commercial Mortgage Securities, Ser 2019-SKLZ, Cl A
1.391%, VAR ICE LIBOR USD 1
Month+1.250%, 01/15/2034 (C)		3,660		3,547
Credit Suisse Mortgage Capital Certificates, Ser 2019-ICE4, Cl A
1.121%, VAR ICE LIBOR USD 1
Month+0.980%, 05/15/2036 (C)		7,100		7,102
Credit Suisse Mortgage Trust, Ser 2019- NQM1, Cl A3
3.064%, 10/25/2059 (C)		3,622		3,711
CSAIL Commercial Mortgage Trust, Ser 2015- C3, Cl A2
3.033%, 08/15/2048		106		106
CSAIL Commercial Mortgage Trust, Ser 2015- C3, Cl A3
3.447%, 08/15/2048		975		1,047
CSAIL Commercial Mortgage Trust, Ser 2015- C4, Cl A4
3.808%, 11/15/2048		695		778
CSAIL Commercial Mortgage Trust, Ser 2020- C19, Cl AS
2.971%, 03/15/2053		1,060		1,140
CSAIL Commercial Mortgage Trust, Ser 2020- C19, Cl C
3.735%, 03/15/2053 (A)		900		884
CSFB Mortgage-Backed Pass-Through Certificates, Ser 2003-27, Cl 5A3
5.250%, 11/25/2033		32		33
CSFB Mortgage-Backed Pass-Through Certificates, Ser 2003-29, Cl 5A1
7.000%, 12/25/2033		57		59
CSMC Trust, Ser 2014-USA, Cl B
4.185%, 09/15/2037 (C)		3,900		3,559
CSMC Trust, Ser 2014-USA, Cl A2
3.953%, 09/15/2037 (C)		3,530		3,601
CSMC Trust, Ser 2015-5R, Cl 1A1
1.803%, 09/27/2046 (A)(C)		1,976		1,968
CSMC Trust, Ser 2018-J1, Cl A2
3.500%, 02/25/2048 (A)(C)		8,254		8,481

  100   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
CSMC Trust, Ser 2018-RPL9, Cl A
3.850%, 09/25/2057 (A)(C)	$	5,574	$	6,113
CSMC Trust, Ser 2019-AFC1, Cl A1
2.573%, 07/25/2049 (C)		3,106		3,176
CSMC Trust, Ser 2020-FACT, Cl A
1.491%, VAR ICE LIBOR USD 1 Month+1.350%, 10/15/2037 (C)		4,280		4,286
DBCCRE Mortgage Trust, Ser 2014-ARCP, Cl C
5.099%, 01/10/2034 (A)(C)		560		588
DBCCRE Mortgage Trust, Ser 2014-ARCP, Cl A
4.238%, 01/10/2034 (C)		2,450		2,604
DBJPM Mortgage Trust, Ser 2016-C1, Cl B
4.195%, 05/10/2049 (A)		1,780		1,857
DBJPM Mortgage Trust, Ser 2017-C6, Cl ASB
3.121%, 06/10/2050		433		469
DBJPM Mortgage Trust, Ser 2020-C9, Cl A5
1.926%, 09/15/2053		341		351
DC Office Trust, Ser 2019-MTC, Cl A
2.965%, 09/15/2045 (C)		1,995		2,185
DSLA Mortgage Loan Trust, Ser 2004-AR2, Cl A2B
0.950%, VAR ICE LIBOR USD 1 Month+0.800%, 11/19/2044		477		440
EverBank Mortgage Loan Trust, Ser 2018-1, Cl A22
3.500%, 02/25/2048 (A)(C)		1,890		1,950
FHLMC STACR REMIC Trust, Ser 2020-DNA5, Cl M1
1.388%, VAR SOFR30A+1.300%, 10/25/2050 (C)		1,830		1,833
FHLMC Structured Agency Credit Risk Debt Notes, Ser 2014-DN1, Cl M2
2.350%, VAR ICE LIBOR USD 1 Month+2.200%, 02/25/2024		106		106
First Horizon Alternative Mortgage Securities Trust, Ser 2004-AA3, Cl A1
2.479%, 09/25/2034 (A)		48		47
Flagstar Mortgage Trust, Ser 2018-2, Cl A4
3.500%, 04/25/2048 (A)(C)		3,053		3,095
FNMA Connecticut Avenue Securities, Ser 2016-C02, Cl 1M2
6.150%, VAR ICE LIBOR USD 1 Month+6.000%, 09/25/2028		2,208		2,332
FNMA Connecticut Avenue Securities, Ser 2017-C01, Cl 1ED1
1.400%, VAR ICE LIBOR USD 1 Month+1.250%, 07/25/2029		2,275		2,261
FWDSecuritization Trust, Ser 2019-INV1, Cl A1
2.810%, 06/25/2049 (A)(C)		1,614		1,653
GCAT LLC, Ser 2019-NQM1, Cl A1
2.985%, 02/25/2059 (C)		542		552
Grace Trust, Ser 2020-GRCE, Cl A
2.347%, 12/10/2040 (C)		4,175		4,374

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
GS Mortgage Securities Trust, Ser 2006-GG8, Cl X, IO
1.270%, 11/10/2039 (A)(C)	$	814	$	1
GS Mortgage Securities Trust, Ser 2010-C1, Cl A2
4.592%, 08/10/2043 (C)		586		586
GS Mortgage Securities Trust, Ser 2012-GC6, Cl A3
3.482%, 01/10/2045		2,007		2,042
GS Mortgage Securities Trust, Ser 2012-GC6, Cl C
5.839%, 01/10/2045 (A)(C)		1,473		1,375
GS Mortgage Securities Trust, Ser 2012-GCJ7, Cl AAB
2.935%, 05/10/2045		4		4
GS Mortgage Securities Trust, Ser 2013-GC16, Cl B
5.161%, 11/10/2046 (A)		390		411
GS Mortgage Securities Trust, Ser 2014-GC18, Cl A4
4.074%, 01/10/2047		2,005		2,162
GS Mortgage Securities Trust, Ser 2014-GC18, Cl A3
3.801%, 01/10/2047		606		628
GS Mortgage Securities Trust, Ser 2015-GC32, Cl XA, IO
0.886%, 07/10/2048 (A)		33,914		980
GS Mortgage Securities Trust, Ser 2015-GC34, Cl A4
3.506%, 10/10/2048		1,144		1,261
GS Mortgage Securities Trust, Ser 2017-GS8, Cl A4
3.469%, 11/10/2050		1,698		1,923
GS Mortgage Securities Trust, Ser 2017-SLP, Cl C
3.924%, 10/10/2032 (C)		4,610		4,584
GS Mortgage Securities Trust, Ser 2018-SRP5, Cl B
4.481%, 06/09/2021		3,770		3,148
GS Mortgage Securities Trust, Ser 2018-SRP5, Cl A
3.281%, 06/09/2021		3,770		3,163
GS Mortgage-Backed Securities Trust, Ser 2018-RPL1, Cl A1A
3.750%, 10/25/2057 (C)		6,141		6,538
GSMPS Mortgage Loan Trust, Ser 1998-1, Cl A
8.000%, 09/19/2027 (A)(C)		1		1
GSMPS Mortgage Loan Trust, Ser 2005-RP3, Cl 1AS, IO
4.252%, 09/25/2035 (A)(C)		192		26
GSR Mortgage Loan Trust, Ser 2004-8F, Cl 2A3
6.000%, 09/25/2034		53		54

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   101

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
GSR Mortgage Loan Trust, Ser 2007-1F, Cl 2A4
5.500%, 01/25/2037	$	13	$	15
Hudson Yards Mortgage Trust, Ser 2019- 30HY, Cl A
3.228%, 07/10/2039 (C)		1,900		2,134
Hudson Yards Mortgage Trust, Ser 2019- 55HY, Cl A
3.041%, 12/10/2041 (A)(C)		1,995		2,204
Impac CMB Trust, Ser 2005-4, Cl 2A1
0.750%, VAR ICE LIBOR USD 1 Month+0.600%, 05/25/2035		93		89
Impac Funding, Ser 2010-1, Cl A1
5.314%, 01/25/2051 (C)		2,091		2,260
Impac Secured Assets Trust, Ser 2006-2, Cl 2A1
0.500%, VAR ICE LIBOR USD 1 Month+0.350%, 08/25/2036		246		246
Indymac Index Mortgage Loan Trust, Ser 2004-AR7, Cl A2
1.010%, VAR ICE LIBOR USD 1 Month+0.860%, 09/25/2034		13		13
Indymac Index Mortgage Loan Trust, Ser 2004-AR8, Cl 2A2A
0.950%, VAR ICE LIBOR USD 1 Month+0.800%, 11/25/2034		22		21
JPMBB Commercial Mortgage Securities Trust, Ser 2013-C12, Cl ASB
3.157%, 07/15/2045		197		200
JPMBB Commercial Mortgage Securities Trust, Ser 2013-C17, Cl B
5.051%, 01/15/2047 (A)		230		246
JPMBB Commercial Mortgage Securities Trust, Ser 2014-C22, Cl C
4.705%, 09/15/2047 (A)		750		658
JPMBB Commercial Mortgage Securities Trust, Ser 2014-C23, Cl A4
3.670%, 09/15/2047		844		906
JPMBB Commercial Mortgage Securities Trust, Ser 2015-C28, Cl A3
2.912%, 10/15/2048		3,443		3,621
JPMBB Commercial Mortgage Securities Trust, Ser 2015-C29, Cl A4
3.611%, 05/15/2048		921		1,017
JPMCC Commercial Mortgage Securities Trust, Ser 2017-JP6, Cl ASB
3.283%, 07/15/2050		813		886
JPMCC Commercial Mortgage Securities Trust, Ser 2019-BOLT, Cl A
1.291%, VAR ICE LIBOR USD 1 Month+1.150%, 07/15/2034 (C)		1,670		1,592

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
JPMDB Commercial Mortgage Securities Trust, Ser 2017-C5, Cl B
4.009%, 03/15/2050 (A)	$	1,740	$	1,865
JPMDB Commercial Mortgage Securities Trust, Ser 2017-C5, Cl A3
3.597%, 03/15/2050		550		575
JPMDB Commercial Mortgage Securities Trust, Ser 2017-C5, Cl ASB
3.492%, 03/15/2050		291		317
JPMDB Commercial Mortgage Securities Trust, Ser 2018-C8, Cl ASB
4.145%, 06/15/2051		1,000		1,149
JPMorgan Chase Commercial Mortgage Securities Trust, Ser 2006-CB15, Cl X1, IO
0.393%, 06/12/2043 (A)		2,102		2
JPMorgan Chase Commercial Mortgage Securities Trust, Ser 2016-JP2, Cl A4
2.822%, 08/15/2049		1,400		1,518
JPMorgan Chase Commercial Mortgage Securities Trust, Ser 2018-BCON, Cl B
3.881%, 01/05/2031 (A)(C)		2,415		2,455
JPMorgan Chase Commercial Mortgage Securities Trust, Ser 2018-PHH, Cl A
2.410%, VAR ICE LIBOR USD 1 Month+0.910%, 06/15/2035 (C)		2,031		1,921
JPMorgan Chase Commercial Mortgage Securities Trust, Ser 2019-OSB, Cl A
3.397%, 06/05/2039 (C)		2,000		2,262
JPMorgan Mortgage Trust, Ser 2004-A3, Cl SF3
2.728%, 06/25/2034 (A)		255		249
JPMorgan Mortgage Trust, Ser 2005-A1, Cl 3A4
3.286%, 02/25/2035 (A)		77		75
JPMorgan Mortgage Trust, Ser 2005-A2, Cl 5A2
2.785%, 04/25/2035 (A)		17		18
JPMorgan Mortgage Trust, Ser 2006-A2, Cl 4A1
3.075%, 08/25/2034 (A)		109		112
JPMorgan Mortgage Trust, Ser 2006-A2, Cl 5A3
2.531%, 11/25/2033 (A)		110		113
JPMorgan Mortgage Trust, Ser 2017-5, Cl A2
3.125%, 10/26/2048 (A)(C)		3,308		3,430
JPMorgan Mortgage Trust, Ser 2018-3, Cl A1
3.500%, 09/25/2048 (A)(C)		1,749		1,798
JPMorgan Mortgage Trust, Ser 2018-4, Cl A1
3.500%, 10/25/2048 (A)(C)		1,386		1,424
JPMorgan Mortgage Trust, Ser 2018-5, Cl A1
3.500%, 10/25/2048 (A)(C)		1,596		1,638

  102   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
LB-UBS Commercial Mortgage Trust, Ser 2006-C1, Cl XCL, IO
0.386%, 02/15/2041 (A)(C)	$	957	$	–
Manhattan West, Ser 2020-1MW, Cl A
2.130%, 09/10/2039 (C)		2,300		2,386
MASTR Adjustable Rate Mortgages Trust, Ser 2004-13, Cl 3A7A
3.191%, 11/21/2034 (A)		1,252		1,267
MASTR Adjustable Rate Mortgages Trust, Ser 2004-5, Cl 3A1
4.125%, 06/25/2034 (A)		7		7
MASTR Alternative Loans Trust, Ser 2004-4, Cl 1A1
5.500%, 05/25/2034		353		366
MASTR Alternative Loans Trust, Ser 2006-3, Cl 1A3
6.250%, 07/25/2036		220		184
MASTR Reperforming Loan Trust, Ser 2005-1, Cl 1A1
6.000%, 08/25/2034 (C)		1,349		1,045
MASTR Reperforming Loan Trust, Ser 2005-2, Cl 1A1F
0.500%, VAR ICE LIBOR USD 1 Month+0.350%, 05/25/2035 (C)		246		134
MASTR Resecuritization Trust, Ser 2005-PO, Cl 3, PO
0.000%, 05/28/2035 (B)(C)		10		9
MASTR Seasoned Securitization Trust, Ser 2004-1, Cl 4A1
2.693%, 10/25/2032 (A)		3		3
MASTR Seasoned Securitization Trust, Ser 2005-1, Cl 4A1
2.625%, 10/25/2032 (A)		24		25
Mello Warehouse Securitization Trust, Ser 2020-1, Cl A
1.050%, VAR ICE LIBOR USD 1 Month+0.900%, 10/25/2053 (C)		1,715		1,718
Merrill Lynch Mortgage Investors Trust, Ser 2003-A4, Cl 2A
3.321%, 07/25/2033 (A)		36		36
Merrill Lynch Mortgage Investors Trust, Ser 2004-1, Cl 2A1
2.634%, 12/25/2034 (A)		87		87
Merrill Lynch Mortgage Investors Trust, Ser 2004-A1, Cl 2A1
3.024%, 02/25/2034 (A)		33		33
Merrill Lynch Mortgage Investors Trust, Ser 2004-A1, Cl 4A
4.000%, 02/25/2034 (A)		40		40
Merrill Lynch Mortgage Investors Trust, Ser 2004-A4, Cl A2
3.193%, 08/25/2034 (A)		49		50

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Merrill Lynch Mortgage Investors Trust, Ser 2004-D, Cl A2
1.034%, VAR ICE LIBOR USD 6 Month+0.720%, 09/25/2029	$	74	$	71
Merrill Lynch Mortgage Investors Trust, Ser 2006-1, Cl 1A
2.648%, 02/25/2036 (A)		37		37
MKT Mortgage Trust, Ser 2020-525M, Cl A
2.694%, 02/12/2040 (C)		3,000		3,177
ML-CFC Commercial Mortgage Trust, Ser 2006-4, Cl XC, IO
0.741%, 12/12/2049 (A)(C)		199		–
Morgan Stanley Bank of America Merrill Lynch Trust, Ser 2015-C20, Cl A4
3.249%, 02/15/2048		262		283
Morgan Stanley Capital I Trust, Ser 2007-HQ11, Cl X, IO
0.365%, 02/12/2044 (A)(C)		200		–
Morgan Stanley Capital I Trust, Ser 2007-T27, Cl AJ
6.215%, 06/11/2042 (A)		2,581		2,584
Morgan Stanley Capital I Trust, Ser 2011-C1, Cl C
5.795%, 09/15/2047 (A)(C)		1,007		1,006
Morgan Stanley Capital I Trust, Ser 2016-BNK2, Cl XA, IO
1.181%, 11/15/2049 (A)		15,697		685
Morgan Stanley Capital I Trust, Ser 2019-BPR, Cl A
1.541%, VAR ICE LIBOR USD 1 Month+1.400%, 05/15/2036 (C)		3,030		2,910
Morgan Stanley Capital I Trust, Ser 2020-L4, Cl ASB
2.624%, 02/15/2053		3,930		4,261
Morgan Stanley Mortgage Loan Trust, Ser 2004-3, Cl 4A
5.625%, 04/25/2034 (A)		109		117
Mortgage Loan Resecuritization Trust, Ser 2009-RS1, Cl A85
0.489%, VAR ICE LIBOR USD 1 Month+0.340%, 04/16/2036 (C)		3,931		3,500
MSBAM Commercial Mortgage Securities Trust, Ser 2012-CKSV, Cl A2
3.277%, 10/15/2030 (C)		150		139
MSCG Trust, Ser 2015-ALDR, Cl A2
3.577%, 06/07/2035 (A)(C)		3,115		3,063
Natixis Commercial Mortgage Securities Trust, Ser 2020-2PAC, Cl A
2.966%, 12/15/2038 (C)		2,085		2,180
New Residential Mortgage Loan Trust, Ser 2015-2A, Cl A1
3.750%, 08/25/2055 (A)(C)		1,951		2,078

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   103

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
New Residential Mortgage Loan Trust, Ser 2017-4A, Cl A1
4.000%, 05/25/2057 (A)(C)	$	3,955	$	4,290
New Residential Mortgage Loan Trust, Ser 2019-4A, Cl A1B
3.500%, 12/25/2058 (A)(C)		2,991		3,155
New Residential Mortgage Loan Trust, Ser 2019-6A, Cl A1B
3.500%, 09/25/2059 (A)(C)		3,513		3,711
New Residential Mortgage Loan Trust, Ser 2019-NQM2, Cl A1
3.600%, 04/25/2049 (A)(C)		662		672
New Residential Mortgage Loan Trust, Ser 2019-NQM4, Cl A1
2.492%, 09/25/2059 (A)(C)		1,194		1,216
New York Mortgage Trust, Ser 2006-1, Cl 2A2
3.688%, 05/25/2036 (A)		85		77
Nomura Resecuritization Trust, Ser 2015-5R, Cl 2A1
3.253%, 03/26/2035 (A)(C)		375		376
OBX Trust, Ser 2019-EXP1, Cl 1A3
4.000%, 01/25/2059 (A)(C)		462		480
OBX Trust, Ser 2019-INV1, Cl A8
4.000%, 11/25/2048 (A)(C)		435		436
OBX Trust, Ser 2020-EXP1, Cl 2A1A
0.900%, VAR ICE LIBOR USD 1 Month+0.750%, 02/25/2060 (C)		1,960		1,989
OBX Trust, Ser 2020-EXP3, Cl 2A1A
1.050%, VAR ICE LIBOR USD 1 Month+0.900%, 01/25/2060 (C)		1,592		1,595
One Bryant Park Trust, Ser 2019-OBP, Cl A
2.516%, 09/15/2054 (C)		2,490		2,648
Opteum Mortgage Acceptance Pass-Through Certificates, Ser 2005-1, Cl M6
1.455%, VAR ICE LIBOR USD 1 Month+1.305%, 02/25/2035		2,158		2,179
Prime Mortgage Trust, Ser 2004-CL1, Cl 1A1
6.000%, 02/25/2034		38		41
Prime Mortgage Trust, Ser 2004-CL1, Cl 1, PO
0.000%, 02/25/2034 (B)		9		7
RALI Trust, Ser 2005-QO2, Cl A1
2.103%, VAR 12 Month Treas Avg+1.360%, 09/25/2045		307		292
RALI Trust, Ser 2005-QO5, Cl A1
1.743%, VAR 12 Month Treas Avg+1.000%, 01/25/2046		441		401
RAMP Trust, Ser 2004-SL1, Cl A7
7.000%, 11/25/2031		33		35
RAMP Trust, Ser 2005-SL1, Cl A5
6.500%, 05/25/2032		5		5
RBS Commercial Funding Trust, Ser 2013-GSP, Cl A
3.961%, 01/15/2032 (A)(C)		670		697

Description	��Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Residential Asset Securitization Trust, Ser 2004-IP2, Cl 2A1
3.232%, 12/25/2034 (A)	$	237	$	235
Residential Mortgage Loan Trust, Ser 2020-2, Cl A1
1.654%, 05/25/2060 (A)(C)		5,357		5,402
Rosslyn Portfolio Trust, Ser 2017-ROSS, Cl A
1.939%, VAR ICE LIBOR USD 1 Month+0.950%, 06/15/2033 (C)		1,143		1,142
Sequoia Mortgage Trust, Ser 2004-12, Cl A3
0.745%, VAR ICE LIBOR USD 6 Month+0.320%, 01/20/2035		122		115
SFAVE Commercial Mortgage Securities Trust, Ser 2015-5AVE, Cl A2B
4.144%, 01/05/2043 (A)(C)		115		111
SG Residential Mortgage Trust, Ser 2019-3, Cl A1
2.703%, 09/25/2059 (A)(C)		1,085		1,100
Starwood Mortgage Residential Trust, Ser 2019-INV1, Cl A1
2.610%, 09/27/2049 (A)(C)		1,329		1,352
Starwood Mortgage Residential Trust, Ser 2020-1, Cl A1
2.275%, 02/25/2050 (A)(C)		2,240		2,288
Starwood Mortgage Residential Trust, Ser 2020-3, Cl A1
1.486%, 04/25/2065 (A)(C)		2,047		2,059
Structured Adjustable Rate Mortgage Loan Trust, Ser 2005-19XS, Cl 1A1
0.470%, VAR ICE LIBOR USD 1 Month+0.320%, 10/25/2035		1,118		1,079
Structured Asset Mortgage Investments II Trust, Ser 2004-AR5, Cl 1A1
0.810%, VAR ICE LIBOR USD 1 Month+0.660%, 10/19/2034		79		79
Structured Asset Mortgage Investments II Trust, Ser 2005-AR1, Cl A1
0.630%, VAR ICE LIBOR USD 1 Month+0.480%, 04/19/2035		1,311		1,307
Structured Asset Securities, Ser 2003-31A, Cl 2A7
2.508%, 10/25/2033 (A)		1,423		1,430
Structured Asset Securities, Ser 2003-37A, Cl 2A
2.501%, 12/25/2033 (A)		38		38
Thornburg Mortgage Securities Trust, Ser 2003-4, Cl A1
0.790%, VAR ICE LIBOR USD 1 Month+0.640%, 09/25/2043		139		139
UBS Commercial Mortgage Trust, Ser 2018-C11, Cl B
4.713%, 06/15/2051 (A)		1,750		1,861

  104   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
Verus Securitization Trust, Ser 2019-1, Cl A1
3.836%, 02/25/2059 (A)(C)	$	464	$	467
Verus Securitization Trust, Ser 2019-2, Cl A1
3.211%, 05/25/2059 (A)(C)		1,678		1,699
Verus Securitization Trust, Ser 2019-3, Cl A1
2.784%, 07/25/2059 (C)		2,446		2,500
Verus Securitization Trust, Ser 2019-4, Cl A1
2.642%, 11/25/2059 (C)		3,323		3,399
Verus Securitization Trust, Ser 2019-INV1, Cl A1
3.402%, 12/25/2059 (A)(C)		900		926
Verus Securitization Trust, Ser 2019-INV2, Cl A1
2.913%, 07/25/2059 (A)(C)		1,304		1,338
Verus Securitization Trust, Ser 2019-INV3, Cl A1
2.692%, 11/25/2059 (A)(C)		2,490		2,555
Verus Securitization Trust, Ser 2020-2, Cl A1
2.226%, 05/25/2060 (A)(C)		3,134		3,165
Verus Securitization Trust, Ser 2020-5, Cl A1
1.218%, 05/25/2065 (C)		611		611
Visio Trust, Ser 2019-1, Cl A1
3.572%, 06/25/2054 (A)(C)		686		695
Visio Trust, Ser 2020-1R, Cl A1
1.312%, 11/25/2055 (C)		1,619		1,619
VNDO Mortgage Trust, Ser 2012-6AVE, Cl A
2.996%, 11/15/2030 (C)		100		103
VNDO Mortgage Trust, Ser 2016-350P, Cl A
3.805%, 01/10/2035 (C)		1,210		1,318
WaMu Mortgage Pass-Through Certificates, Ser 2003-AR10, Cl A7
2.570%, 10/25/2033 (A)		62		62
WaMu Mortgage Pass-Through Certificates, Ser 2003-AR6, Cl A1
3.114%, 06/25/2033 (A)		57		58
WaMu Mortgage Pass-Through Certificates, Ser 2003-AR7, Cl A7
2.713%, 08/25/2033 (A)		51		51
WaMu Mortgage Pass-Through Certificates, Ser 2003-AR9, Cl 1A6
2.801%, 09/25/2033 (A)		125		125
WaMu Mortgage Pass-Through Certificates, Ser 2003-S4, Cl 2A10
17.050%, 06/25/2033 (A)		15		19
WaMu Mortgage Pass-Through Certificates, Ser 2003-S9, Cl A8
5.250%, 10/25/2033		201		207
WaMu Mortgage Pass-Through Certificates, Ser 2004-AR3, Cl A2
3.650%, 06/25/2034 (A)		41		42
WaMu Mortgage Pass-Through Certificates, Ser 2004-AR4, Cl A6
2.960%, 06/25/2034 (A)		3,711		3,743

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
WaMu Mortgage Pass-Through Certificates, Ser 2004-AR7, Cl A6
2.872%, 07/25/2034 (A)	$	4,254	$	4,314
WaMu Mortgage Pass-Through Certificates, Ser 2005-AR15, Cl A1A1
0.410%, VAR ICE LIBOR USD 1 Month+0.260%, 11/25/2045		8,420		8,247
WaMu Mortgage Pass-Through Certificates, Ser 2005-AR19, Cl A1A1
0.690%, VAR ICE LIBOR USD 1 Month+0.540%, 12/25/2045		5,286		5,255
WaMu Mortgage Pass-Through Certificates, Ser 2006-AR1, CI 1A1B
1.813%, VAR 12 Month Treas Avg+1.070%, 01/25/2046		1,301		737
WaMu Mortgage Pass-Through Certificates, Ser 2006-AR14, Cl 1A4
2.643%, 11/25/2036 (A)		94		93
WaMu Mortgage Pass-Through Certificates, Ser 2006-AR17, Cl 2A
2.029%, VAR Cost of Funds 11th District of San Fran+1.500%, 12/25/2046		212		200
WaMu Mortgage Pass-Through Certificates, Ser 2006-AR17, Cl 1A1B
1.693%, VAR 12 Month Treas Avg+0.810%, 12/25/2046		127		84
Washington Mutual Alternative Mortgage Pass-Through Certificates, Ser 2005-3, Cl CX, IO
5.500%, 05/25/2035		175		30
Washington Mutual MSC Mortgage Pass-Through Certificates, Ser 2003-MS2, Cl 1A1
5.750%, 02/25/2033		7		7
Washington Mutual MSC Mortgage Pass-Through Certificates, Ser 2003-MS8, Cl 1P, PO
0.000%, 05/25/2033 (B)		14		13
Washington Mutual MSC Mortgage Pass-Through Certificates, Ser 2003-MS9, Cl 2P, PO
0.000%, 04/25/2033 (B)		37		36
Wells Fargo Commercial Mortgage Trust, Ser 2012-LC5, Cl B
4.142%, 10/15/2045		1,220		1,264
Wells Fargo Mortgage-Backed Securities Trust, Ser 2005-AR14, Cl A1
3.093%, 08/25/2035 (A)		38		38
WFRBS Commercial Mortgage Trust, Ser 2012-C7, Cl XA, IO
1.463%, 06/15/2045 (A)(C)		2,521		31

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   105

SCHEDULE OF INVESTMENTS (Unaudited)

November 30. 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
WFRBS Commercial Mortgage Trust, Ser 2013-C12, Cl C
4.460%, 03/15/2048 (A)	$	490	$	495
WFRBS Commercial Mortgage Trust, Ser 2013-C12, Cl XA, IO
1.333%, 03/15/2048 (A)(C)		8,671		179
WFRBS Commercial Mortgage Trust, Ser 2013-C15, Cl A4
4.153%, 08/15/2046 (A)		150		162
WFRBS Commercial Mortgage Trust, Ser 2013-C17, Cl A4
4.023%, 12/15/2046		120		130
WFRBS Commercial Mortgage Trust, Ser 2014-C19, Cl A3
3.660%, 03/15/2047		371		375
WFRBS Commercial Mortgage Trust, Ser 2014-C19, Cl B
4.723%, 03/15/2047 (A)		210		227
WFRBS Commercial Mortgage Trust, Ser 2014-C19, Cl XA, IO
1.182%, 03/15/2047 (A)		4,282		102
WFRBS Commercial Mortgage Trust, Ser 2014-C21, Cl B
4.213%, 08/15/2047 (A)		2,180		2,254
WFRBS Commercial Mortgage Trust, Ser 2014-C21, Cl XA, IO
1.185%, 08/15/2047 (A)		12,433		368
WFRBS Commercial Mortgage Trust, Ser 2014-C22, Cl B
4.371%, 09/15/2057 (A)		775		831
WFRBS Commercial Mortgage Trust, Ser 2014-C23, Cl XA, IO
0.710%, 10/15/2057 (A)		4,586		82
WFRBS Commercial Mortgage Trust, Ser 2014-C24, Cl AS
3.931%, 11/15/2047		1,330		1,358
WinWater Mortgage Loan Trust, Ser 2015-5, Cl A5
3.500%, 08/20/2045 (A)(C)		279		279
				354,965
Total Mortgage-Backed Securities (Cost $2,644,419) ($ Thousands)				2,702,976
CORPORATE OBLIGATIONS — 32.1%
Communication Services — 3.1%
Activision Blizzard
2.500%, 09/15/2050		1,167		1,126
Alphabet
2.250%, 08/15/2060		953		941
2.050%, 08/15/2050		630		611

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
1.100%, 08/15/2030	$	400	$	397
0.800%, 08/15/2027		350		349
0.450%, 08/15/2025		180		180
AT&T
6.500%, 09/01/2037		2,770		3,904
5.350%, 09/01/2040		80		105
5.250%, 03/01/2037		3,910		5,075
4.850%, 03/01/2039		414		519
4.800%, 06/15/2044		7,125		8,950
4.750%, 05/15/2046		2,585		3,206
4.500%, 03/09/2048		1,395		1,705
4.350%, 03/01/2029		515		615
4.350%, 06/15/2045		1,082		1,276
4.300%, 02/15/2030		70		84
3.850%, 06/01/2060		712		754
3.650%, 09/15/2059 (C)		1,006		1,019
3.550%, 09/15/2055 (C)		1,987		2,036
3.500%, 06/01/2041		712		773
3.500%, 09/15/2053 (C)		5,082		5,185
3.300%, 02/01/2052		3,059		3,053
3.100%, 02/01/2043		3,117		3,204
3.000%, 06/30/2022		1,644		1,705
2.750%, 06/01/2031		2,142		2,277
2.300%, 06/01/2027		4,752		5,048
2.250%, 02/01/2032		1,627		1,641
1.650%, 02/01/2028		5,506		5,590
Charter Communications Operating LLC / Charter Communications Operating Capital
6.484%, 10/23/2045		110		157
6.384%, 10/23/2035		170		237
5.750%, 04/01/2048		570		753
5.375%, 04/01/2038		1,800		2,269
5.375%, 05/01/2047		250		317
5.050%, 03/30/2029		2,060		2,494
4.908%, 07/23/2025		2,469		2,859
4.800%, 03/01/2050		1,793		2,141
4.464%, 07/23/2022		635		671
4.200%, 03/15/2028		980		1,127
3.750%, 02/15/2028		681		763
Comcast
7.050%, 03/15/2033		50		77
4.700%, 10/15/2048		250		355
4.600%, 10/15/2038		1,809		2,394
4.400%, 08/15/2035		3,055		3,919
4.250%, 10/15/2030		1,010		1,247
4.250%, 01/15/2033		360		450
4.200%, 08/15/2034		570		716
4.150%, 10/15/2028		4,291		5,164
4.000%, 03/01/2048		110		140
3.969%, 11/01/2047		120		152
3.950%, 10/15/2025		1,579		1,810

  106   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.750%, 04/01/2040	$	1,727	$	2,098
3.700%, 04/15/2024		1,100		1,212
3.600%, 03/01/2024		340		374
3.450%, 02/01/2050		570		676
3.400%, 04/01/2030		3,655		4,226
3.400%, 07/15/2046		60		70
3.300%, 04/01/2027		310		350
3.250%, 11/01/2039		250		286
3.150%, 03/01/2026		800		892
3.100%, 04/01/2025		714		785
2.800%, 01/15/2051		422		445
2.450%, 08/15/2052		1,612		1,585
1.950%, 01/15/2031		955		984
1.500%, 02/15/2031		5,810		5,785
Comcast Cable Communications Holdings
9.455%, 11/15/2022		240		283
Comcast Cable Holdings LLC
10.125%, 04/15/2022		190		214
Cox Communications
4.800%, 02/01/2035 (C)		1,665		2,096
3.250%, 12/15/2022 (C)		1,010		1,064
Fox
5.476%, 01/25/2039		270		375
4.709%, 01/25/2029		240		290
3.500%, 04/08/2030		1,125		1,280
NBCUniversal Media LLC
5.950%, 04/01/2041		375		576
Rogers Communications
4.100%, 10/01/2023		133		145
Sky
3.750%, 09/16/2024 (C)		2,045		2,277
Sprint Capital
8.750%, 03/15/2032		200		307
Sprint Spectrum LLC
5.152%, 03/20/2028 (C)		7,425		8,608
4.738%, 03/20/2025 (C)		3,630		3,911
3.360%, 09/20/2021 (C)		3,356		3,392
Telefonica Emisiones
5.462%, 02/16/2021		69		70
4.103%, 03/08/2027		150		172
Tencent Holdings MTN
3.595%, 01/19/2028 (C)		2,370		2,609
Time Warner Cable LLC
7.300%, 07/01/2038		100		147
6.750%, 06/15/2039		170		242
6.550%, 05/01/2037		498		689
5.875%, 11/15/2040		210		272
5.500%, 09/01/2041		4,882		6,155
Time Warner Entertainment
8.375%, 07/15/2033		1,380		2,152
T-Mobile USA
4.375%, 04/15/2040 (C)		2,770		3,383

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.875%, 04/15/2030 (C)	$	3,360	$	3,855
3.750%, 04/15/2027 (C)		2,332		2,633
3.500%, 04/15/2025 (C)		2,829		3,121
3.300%, 02/15/2051 (C)		210		220
3.000%, 02/15/2041 (C)		791		817
2.550%, 02/15/2031 (C)		2,700		2,813
2.250%, 11/15/2031 (C)		790		801
2.050%, 02/15/2028 (C)		3,763		3,866
1.500%, 02/15/2026 (C)		1,777		1,808
Verizon Communications
5.500%, 03/16/2047		100		148
5.250%, 03/16/2037		1,100		1,526
4.862%, 08/21/2046		270		372
4.522%, 09/15/2048		2,538		3,415
4.500%, 08/10/2033		470		599
4.400%, 11/01/2034		5,373		6,792
4.329%, 09/21/2028		3,074		3,732
4.272%, 01/15/2036		285		358
4.125%, 03/16/2027		330		391
4.125%, 08/15/2046		430		542
4.016%, 12/03/2029		2,139		2,552
4.000%, 03/22/2050		1,330		1,664
3.850%, 11/01/2042		1,750		2,117
3.500%, 11/01/2024		1,557		1,719
3.376%, 02/15/2025		967		1,074
3.150%, 03/22/2030		580		653
3.000%, 03/22/2027		889		988
3.000%, 11/20/2060		1,356		1,429
2.875%, 11/20/2050		2,320		2,423
2.650%, 11/20/2040		4,893		5,049
2.625%, 08/15/2026		1,200		1,312
1.750%, 01/20/2031		5,591		5,656
0.850%, 11/20/2025		220		221
ViacomCBS
6.875%, 04/30/2036		1,175		1,677
5.900%, 10/15/2040		840		1,109
5.850%, 09/01/2043		466		638
4.950%, 05/19/2050		24		31
4.750%, 05/15/2025		2,914		3,376
4.600%, 01/15/2045		125		147
4.375%, 03/15/2043		193		224
4.200%, 05/19/2032		2,100		2,490
3.875%, 04/01/2024		230		251
3.700%, 08/15/2024		1,505		1,648
Vodafone Group
5.250%, 05/30/2048		2,370		3,244
4.875%, 06/19/2049		3,011		3,944
4.375%, 05/30/2028		1,380		1,657
4.250%, 09/17/2050		2,006		2,456
Walt Disney
8.875%, 04/26/2023		150		179
6.650%, 11/15/2037		260		405

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   107

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
6.400%, 12/15/2035	$	69	$	106
6.200%, 12/15/2034		265		400
4.700%, 03/23/2050		1,035		1,442
4.625%, 03/23/2040		1,680		2,221
3.800%, 05/13/2060		507		627
3.600%, 01/13/2051		3,665		4,354
3.500%, 05/13/2040		813		947
2.650%, 01/13/2031		1,990		2,168
				252,424
Consumer Discretionary — 2.0%
Advance Auto Parts
3.900%, 04/15/2030		2,851		3,277
1.750%, 10/01/2027		1,388		1,401
Alimentation Couche-Tard
3.550%, 07/26/2027 (C)		2,200		2,466
Amazon.com
4.950%, 12/05/2044		600		886
4.800%, 12/05/2034		187		259
4.250%, 08/22/2057		160		228
4.050%, 08/22/2047		570		764
3.875%, 08/22/2037		1,780		2,254
3.150%, 08/22/2027		160		182
2.700%, 06/03/2060		709		780
2.500%, 06/03/2050		1,659		1,754
1.500%, 06/03/2030		1,020		1,042
1.200%, 06/03/2027		1,090		1,111
0.800%, 06/03/2025		880		892
American Honda Finance MTN
1.000%, 09/10/2025		4,200		4,238
AutoZone
2.500%, 04/15/2021		44		44
BMW US Capital LLC
4.150%, 04/09/2030 (C)		1,460		1,767
3.800%, 04/06/2023 (C)		4,495		4,839
1.850%, 09/15/2021 (C)		180		182
BorgWarner
2.650%, 07/01/2027		1,481		1,579
Daimler Finance North America LLC
3.350%, 05/04/2021 (C)		1,740		1,761
2.700%, 06/14/2024 (C)		990		1,056
1.121%, VAR ICE LIBOR USD 3 Month+0.900%, 02/15/2022 (C)		2,000		2,013
Dollar General
3.250%, 04/15/2023		70		74
Ford Motor Credit LLC
5.875%, 08/02/2021		1,570		1,607
5.750%, 02/01/2021		590		593
5.085%, 01/07/2021		2,000		2,005
4.271%, 01/09/2027		1,985		2,055
3.813%, 10/12/2021		925		936
3.339%, 03/28/2022		3,990		4,015

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.336%, 03/18/2021	$	500	$	501
3.096%, 05/04/2023		200		201
1.503%, VAR ICE LIBOR USD 3 Month+1.270%, 03/28/2022		2,200		2,170
1.104%, VAR ICE LIBOR USD 3 Month+0.880%, 10/12/2021		3,020		2,970
1.044%, VAR ICE LIBOR USD 3 Month+0.810%, 04/05/2021		2,510		2,497
General Motors
6.250%, 10/02/2043		940		1,269
5.400%, 04/01/2048		1,339		1,691
5.150%, 04/01/2038		150		179
4.875%, 10/02/2023		2,230		2,465
General Motors Financial
5.200%, 03/20/2023		1,514		1,660
4.375%, 09/25/2021		2,985		3,070
4.350%, 01/17/2027		180		205
4.200%, 11/06/2021		375		387
3.550%, 04/09/2021		2,000		2,020
3.450%, 04/10/2022		1,950		2,010
3.200%, 07/06/2021		835		845
3.150%, 06/30/2022		3,095		3,198
2.750%, 06/20/2025		2,220		2,347
2.700%, 08/20/2027		3,108		3,280
1.700%, 08/18/2023		2,203		2,251
Genuine Parts
1.875%, 11/01/2030		1,235		1,226
Harley-Davidson Financial Services
3.350%, 06/08/2025 (C)		1,367		1,468
Home Depot
3.900%, 12/06/2028		80		96
3.900%, 06/15/2047		100		127
3.350%, 04/15/2050		2,886		3,423
3.300%, 04/15/2040		817		967
3.125%, 12/15/2049		1,896		2,174
2.950%, 06/15/2029		378		428
2.700%, 04/15/2030		3,604		4,005
2.500%, 04/15/2027		430		470
Hyundai Capital America
2.375%, 10/15/2027 (C)		1,038		1,071
1.800%, 10/15/2025 (C)		1,038		1,048
1.250%, 09/18/2023 (C)		1,038		1,045
Kohl’s
5.550%, 07/17/2045		610		598
Las Vegas Sands Corp
3.200%, 08/08/2024		1,480		1,547
2.900%, 06/25/2025		140		144
Lowe’s
5.000%, 04/15/2040		2,025		2,739
4.500%, 04/15/2030		320		396
4.000%, 04/15/2025		722		821
3.000%, 10/15/2050		420		451

  108   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
2.500%, 04/15/2026	$	260	$	281
1.700%, 10/15/2030		1,794		1,803
Marriott International Inc/MD
5.750%, 05/01/2025		1,230		1,424
4.625%, 06/15/2030		263		304
McDonald’s MTN
4.875%, 12/09/2045		670		915
4.200%, 04/01/2050		800		1,030
3.800%, 04/01/2028		1,220		1,425
3.700%, 01/30/2026		2,085		2,366
3.625%, 09/01/2049		355		417
3.600%, 07/01/2030		460		540
3.500%, 03/01/2027		180		205
3.500%, 07/01/2027		510		584
3.300%, 07/01/2025		480		534
2.125%, 03/01/2030		610		642
1.450%, 09/01/2025		1,367		1,416
Newell Brands
4.700%, 04/01/2026		560		603
4.350%, 04/01/2023		376		396
NIKE
3.375%, 03/27/2050		1,332		1,608
3.250%, 03/27/2040		330		387
2.850%, 03/27/2030		1,296		1,466
2.750%, 03/27/2027		1,296		1,439
2.400%, 03/27/2025		1,385		1,488
Nissan Motor
4.810%, 09/17/2030 (C)		777		854
4.345%, 09/17/2027 (C)		1,746		1,879
3.522%, 09/17/2025 (C)		632		660
O’Reilly Automotive
4.200%, 04/01/2030		692		831
1.750%, 03/15/2031		2,162		2,152
QVC
4.850%, 04/01/2024		735		774
Ralph Lauren
2.950%, 06/15/2030		2,243		2,377
1.700%, 06/15/2022		1,157		1,180
Sands China
5.125%, 08/08/2025		810		890
4.600%, 08/08/2023		700		749
Starbucks
4.450%, 08/15/2049		745		969
3.500%, 11/15/2050		3,515		4,032
3.350%, 03/12/2050		927		1,016
1.300%, 05/07/2022		847		858
Target
2.250%, 04/15/2025		710		758
TJX
3.750%, 04/15/2027		4,905		5,682
3.500%, 04/15/2025		460		512

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Toyota Motor Credit MTN
2.900%, 03/30/2023	$	4,170	$	4,411
0.500%, 08/14/2023		970		973
Tractor Supply
1.750%, 11/01/2030		840		842
Volkswagen Group of America Finance LLC
2.900%, 05/13/2022 (C)		3,135		3,236
1.250%, 11/24/2025 (C)		2,520		2,523
0.875%, 11/22/2023 (C)		5,190		5,201
				170,152
Consumer Staples — 3.2%
Adani Ports & Special Economic Zone
4.200%, 08/04/2027 (C)		1,207		1,286
Advocate Health & Hospitals
2.211%, 06/15/2030		2,835		2,961
Aetna
3.875%, 08/15/2047		888		1,069
2.800%, 06/15/2023		3,648		3,835
Altria Group
5.950%, 02/14/2049		280		399
5.800%, 02/14/2039		1,065		1,409
4.800%, 02/14/2029		1,200		1,437
4.750%, 05/05/2021		490		499
4.450%, 05/06/2050		602		710
4.400%, 02/14/2026		2,985		3,458
3.875%, 09/16/2046		582		627
3.800%, 02/14/2024		400		437
3.490%, 02/14/2022		360		374
2.350%, 05/06/2025		470		498
Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide
4.700%, 02/01/2036		2,594		3,309
3.650%, 02/01/2026		1,978		2,236
Anheuser-Busch InBev Worldwide
5.550%, 01/23/2049		1,600		2,303
5.450%, 01/23/2039		2,180		2,969
4.900%, 02/01/2046		8,716		11,389
4.750%, 01/23/2029		1,540		1,892
4.600%, 04/15/2048		2,836		3,600
4.500%, 06/01/2050		1,850		2,320
4.375%, 04/15/2038		1,364		1,689
4.350%, 06/01/2040		970		1,204
4.150%, 01/23/2025		1,714		1,947
4.000%, 04/13/2028		360		422
3.750%, 07/15/2042		271		310
3.500%, 06/01/2030		380		440
Bacardi
5.300%, 05/15/2048 (C)		850		1,147
5.150%, 05/15/2038 (C)		572		720
4.700%, 05/15/2028 (C)		2,807		3,249

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   109

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
BAT Capital
4.906%, 04/02/2030	$	365	$	439
4.700%, 04/02/2027		1,426		1,670
4.540%, 08/15/2047		4,805		5,428
3.984%, 09/25/2050		1,035		1,087
3.557%, 08/15/2027		4,712		5,238
3.215%, 09/06/2026		2,435		2,656
2.726%, 03/25/2031		4,101		4,211
2.259%, 03/25/2028		73		75
BAT International Finance
1.668%, 03/25/2026		3,723		3,791
BayCare Health System
3.831%, 11/15/2050		2,765		3,425
Bayer US Finance II LLC
4.875%, 06/25/2048 (C)		5,825		7,472
4.700%, 07/15/2064 (C)		400		463
4.400%, 07/15/2044 (C)		1,250		1,449
4.375%, 12/15/2028 (C)		3,750		4,406
4.250%, 12/15/2025 (C)		1,325		1,517
Bayer US Finance LLC
3.375%, 10/08/2024 (C)		3,255		3,546
Bon Secours Mercy Health
3.464%, 06/01/2030		1,480		1,688
Bunge Finance
3.750%, 09/25/2027		1,257		1,401
3.250%, 08/15/2026		1,445		1,587
1.630%, 08/17/2025		1,770		1,807
Cargill
1.375%, 07/23/2023 (C)		690		709
Coca-Cola
3.375%, 03/25/2027		330		379
2.950%, 03/25/2025		320		352
2.875%, 10/27/2025		185		206
2.600%, 06/01/2050		560		593
2.500%, 06/01/2040		310		335
2.500%, 03/15/2051		1,540		1,601
1.450%, 06/01/2027		2,510		2,585
CommonSpirit Health
4.187%, 10/01/2049		1,205		1,335
3.347%, 10/01/2029		1,025		1,104
2.782%, 10/01/2030		750		774
Constellation Brands
4.400%, 11/15/2025		873		1,015
3.700%, 12/06/2026		203		233
3.200%, 02/15/2023		325		343
Costco Wholesale
1.750%, 04/20/2032		1,019		1,054
1.600%, 04/20/2030		7,568		7,760
1.375%, 06/20/2027		1,220		1,253
CVS Pass-Through Trust
6.036%, 12/10/2028		1,459		1,661
5.926%, 01/10/2034 (C)		149		178

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
5.880%, 01/10/2028	$	93	$	106
5.789%, 01/10/2026 (C)		710		775
Danone
2.947%, 11/02/2026 (C)		450		497
2.589%, 11/02/2023 (C)		1,580		1,664
2.077%, 11/02/2021 (C)		1,030		1,045
Diageo Investment
2.875%, 05/11/2022		980		1,016
DP World MTN
5.625%, 09/25/2048 (C)		2,790		3,398
Element Fleet Management
3.850%, 06/15/2025 (C)(D)		1,367		1,461
General Mills
2.875%, 04/15/2030		479		533
Health Care Service, A Mutual Legal Reserve
2.200%, 06/01/2030 (C)		1,535		1,600
1.500%, 06/01/2025 (C)		1,380		1,416
Hershey
0.900%, 06/01/2025		210		213
Hutama Karya Persero MTN
3.750%, 05/11/2030 (C)		760		844
Kaiser Foundation Hospitals
4.150%, 05/01/2047		70		91
Keurig Dr Pepper
4.417%, 05/25/2025		380		438
3.800%, 05/01/2050		696		832
3.430%, 06/15/2027		1,015		1,157
Kimberly-Clark
3.100%, 03/26/2030		200		231
Kraft Heinz Foods
5.000%, 07/15/2035		445		525
5.000%, 06/04/2042		4,795		5,495
4.875%, 10/01/2049 (C)		4,975		5,611
4.375%, 06/01/2046		4,385		4,683
3.950%, 07/15/2025		76		84
3.000%, 06/01/2026		630		658
Kroger
5.400%, 01/15/2049		1,760		2,559
3.950%, 01/15/2050		260		318
Land O’ Lakes
6.000%, 11/15/2022 (C)		1,890		2,005
Leland Stanford Junior University
1.289%, 06/01/2027		273		280
Mars
1.625%, 07/16/2032 (C)		1,721		1,713
Molson Coors Beverage
3.500%, 05/01/2022		220		229
Mondelez International
2.125%, 04/13/2023		240		249
1.875%, 10/15/2032		1,250		1,275
1.500%, 05/04/2025		1,070		1,107

  110   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Mondelez International Holdings Netherlands BV
2.125%, 09/19/2022 (C)	$	450	$	464
2.000%, 10/28/2021 (C)		6,425		6,513
Nestle Holdings
3.500%, 09/24/2025 (C)		800		900
3.350%, 09/24/2023 (C)		1,055		1,139
Partners Healthcare System
3.342%, 07/01/2060		1,380		1,533
3.192%, 07/01/2049		245		261
PepsiCo
3.875%, 03/19/2060		200		267
3.625%, 03/19/2050		110		138
3.600%, 03/01/2024		150		164
2.875%, 10/15/2049		250		280
2.625%, 03/19/2027		80		88
2.250%, 03/19/2025		80		85
1.625%, 05/01/2030		670		690
0.750%, 05/01/2023		820		829
Philip Morris International
2.900%, 11/15/2021		550		564
2.875%, 05/01/2024		3,585		3,852
2.500%, 08/22/2022		1,530		1,589
2.500%, 11/02/2022		1,250		1,301
2.100%, 05/01/2030		460		476
1.125%, 05/01/2023		1,655		1,687
Procter & Gamble
3.100%, 08/15/2023		140		151
3.000%, 03/25/2030		5,130		5,942
2.800%, 03/25/2027		130		145
Reckitt Benckiser Treasury Services
2.750%, 06/26/2024 (C)		3,675		3,931
Reynolds American
8.125%, 05/01/2040		1,060		1,553
6.150%, 09/15/2043		480		628
5.850%, 08/15/2045		4,055		5,189
RWJ Barnabas Health
3.949%, 07/01/2046		2,445		2,794
Shire Acquisitions Investments Ireland
2.875%, 09/23/2023		4,747		5,036
Smith & Nephew
2.032%, 10/14/2030		1,245		1,269
Sysco
6.600%, 04/01/2050		350		543
Takeda Pharmaceutical
4.400%, 11/26/2023		4,109		4,559
3.175%, 07/09/2050		2,522		2,701
2.050%, 03/31/2030		2,451		2,498
Trustees of the University of Pennsylvania
3.610%, 02/15/2119		43		47
Walgreens Boots Alliance
4.800%, 11/18/2044		1,430		1,644

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.450%, 06/01/2026	$	690	$	765
3.300%, 11/18/2021		888		908
Walmart
4.050%, 06/29/2048		15		21
3.950%, 06/28/2038		855		1,110
3.700%, 06/26/2028		1,560		1,842
3.550%, 06/26/2025		230		260
3.400%, 06/26/2023		305		328
3.300%, 04/22/2024		175		190
3.050%, 07/08/2026		1,695		1,904
Yale University
1.482%, 04/15/2030		1,020		1,033
0.873%, 04/15/2025		1,190		1,208
				252,098
Energy — 3.7%
Aker BP
4.000%, 01/15/2031 (C)		944		954
2.875%, 01/15/2026 (C)		1,832		1,835
Apache
5.100%, 09/01/2040		110		114
4.750%, 04/15/2043		420		419
4.375%, 10/15/2028		990		1,010
4.250%, 01/15/2030		20		20
4.250%, 01/15/2044		1,130		1,085
3.250%, 04/15/2022		45		45
BG Energy Capital
4.000%, 10/15/2021 (C)		2,775		2,859
BP Capital Markets
3.561%, 11/01/2021		110		113
3.535%, 11/04/2024		150		166
3.506%, 03/17/2025		340		379
BP Capital Markets America
3.796%, 09/21/2025		90		102
3.790%, 02/06/2024		150		164
3.633%, 04/06/2030		3,390		3,953
3.543%, 04/06/2027		1,670		1,876
3.245%, 05/06/2022		950		989
3.216%, 11/28/2023		1,630		1,750
3.194%, 04/06/2025		3,648		4,006
3.119%, 05/04/2026		400		442
3.000%, 02/24/2050		2,300		2,393
2.937%, 04/06/2023		60		63
2.772%, 11/10/2050		1,633		1,628
1.749%, 08/10/2030		1,361		1,372
Cameron LNG LLC
3.302%, 01/15/2035 (C)		1,110		1,250
2.902%, 07/15/2031 (C)		2,020		2,218
Canadian Natural Resources
6.450%, 06/30/2033		200		252
3.850%, 06/01/2027		644		712

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   111

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Chevron
3.191%, 06/24/2023	$	95	$	101
3.078%, 05/11/2050		950		1,059
2.978%, 05/11/2040		650		721
2.954%, 05/16/2026		1,100		1,218
2.355%, 12/05/2022		290		301
1.995%, 05/11/2027		1,280		1,356
1.554%, 05/11/2025		830		862
Chevron USA
1.018%, 08/12/2027		2,045		2,048
Cimarex Energy
4.375%, 06/01/2024		80		86
4.375%, 03/15/2029		800		897
3.900%, 05/15/2027		1,670		1,829
CNOOC Finance 2013
3.000%, 05/09/2023		253		265
CNOOC Finance 2015 USA LLC
4.375%, 05/02/2028		1,510		1,746
3.500%, 05/05/2025		2,900		3,135
Concho Resources
4.300%, 08/15/2028		1,130		1,344
3.750%, 10/01/2027		1,385		1,575
2.400%, 02/15/2031		851		890
ConocoPhillips
6.950%, 04/15/2029		995		1,387
4.150%, 11/15/2034		753		892
Continental Resources/Oklahoma
4.900%, 06/01/2044 (D)		340		317
4.500%, 04/15/2023		480		492
4.375%, 01/15/2028 (D)		810		808
3.800%, 06/01/2024		770		778
Devon Energy
7.875%, 09/30/2031		1,230		1,647
5.850%, 12/15/2025		1,000		1,156
5.600%, 07/15/2041		1,047		1,223
5.000%, 06/15/2045		1,453		1,641
4.750%, 05/15/2042		157		170
Diamondback Energy
5.375%, 05/31/2025		200		208
3.500%, 12/01/2029		976		1,021
3.250%, 12/01/2026		1,319		1,396
2.875%, 12/01/2024		280		292
Ecopetrol
5.875%, 05/28/2045		5,653		6,720
4.125%, 01/16/2025		167		181
Enbridge
3.125%, 11/15/2029		1,444		1,566
2.500%, 01/15/2025		3,157		3,326
Energy Transfer Operating
8.250%, 11/15/2029		3,042		4,015
6.250%, 04/15/2049		460		537
6.050%, 06/01/2041		311		346

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
5.500%, 06/01/2027	$	344	$	396
5.300%, 04/15/2047		570		607
5.250%, 04/15/2029		2,085		2,363
5.150%, 03/15/2045		1,604		1,663
5.000%, 05/15/2050		1,505		1,583
4.950%, 06/15/2028		410		459
4.750%, 01/15/2026		474		527
4.500%, 04/15/2024		217		234
4.250%, 03/15/2023		976		1,027
4.200%, 04/15/2027		507		550
4.050%, 03/15/2025		2,409		2,589
3.750%, 05/15/2030		2,340		2,421
3.600%, 02/01/2023		170		177
2.900%, 05/15/2025		1,392		1,448
Energy Transfer Partners LP / Regency Energy Finance
4.500%, 11/01/2023		321		346
Eni Spa
4.000%, 09/12/2023 (C)		3,600		3,917
Enterprise Products Operating LLC
7.550%, 04/15/2038		60		89
6.125%, 10/15/2039		145		196
4.850%, 03/15/2044		60		73
4.800%, 02/01/2049		100		126
4.200%, 01/31/2050		2,790		3,249
4.150%, 10/16/2028		1,580		1,867
4.050%, 02/15/2022		14		15
3.950%, 01/31/2060		949		1,028
3.700%, 01/31/2051		1,053		1,145
3.125%, 07/31/2029		350		388
2.800%, 01/31/2030		1,800		1,942
EOG Resources
4.950%, 04/15/2050		1,730		2,375
4.375%, 04/15/2030		860		1,049
4.150%, 01/15/2026		1,030		1,192
3.900%, 04/01/2035		590		688
EQT
3.900%, 10/01/2027		575		570
Equinor
3.250%, 11/18/2049		490		543
3.000%, 04/06/2027		2,845		3,159
2.875%, 04/06/2025		5,195		5,646
1.750%, 01/22/2026		838		876
Exxon Mobil
4.327%, 03/19/2050 (D)		3,500		4,521
4.227%, 03/19/2040		1,380		1,706
4.114%, 03/01/2046		910		1,117
3.482%, 03/19/2030		1,990		2,306
3.043%, 03/01/2026		1,140		1,261
1.571%, 04/15/2023		130		134
Exxon Mobil Corp
2.992%, 03/19/2025		10,020		10,934

  112   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Galaxy Pipeline Assets Bidco
2.625%, 03/31/2036 (C)	$	964	$	997
1.750%, 09/30/2027 (C)		3,719		3,740
Gray Oak Pipeline LLC
2.600%, 10/15/2025 (C)		715		726
Halliburton
3.800%, 11/15/2025		66		73
Hess
6.000%, 01/15/2040		1,600		1,946
5.600%, 02/15/2041		2,000		2,351
HollyFrontier
2.625%, 10/01/2023		721		727
KazMunayGas National JSC
6.375%, 10/24/2048 (C)		470		668
5.750%, 04/19/2047 (C)		1,390		1,833
5.375%, 04/24/2030 (C)		1,520		1,864
Kinder Morgan
5.550%, 06/01/2045		270		342
5.200%, 03/01/2048		1,070		1,315
5.050%, 02/15/2046		260		311
4.300%, 06/01/2025		1,105		1,257
4.300%, 03/01/2028		590		686
Kinder Morgan Energy Partners
5.500%, 03/01/2044		715		886
5.400%, 09/01/2044		40		49
5.000%, 03/01/2043		50		58
3.500%, 03/01/2021		300		301
Marathon Oil
6.800%, 03/15/2032		250		296
5.200%, 06/01/2045		348		379
4.400%, 07/15/2027		1,309		1,428
MPLX
5.500%, 02/15/2049		580		725
4.800%, 02/15/2029		120		141
4.700%, 04/15/2048		1,410		1,585
4.500%, 04/15/2038		810		898
4.000%, 03/15/2028		350		395
2.650%, 08/15/2030		1,429		1,447
1.750%, 03/01/2026		1,063		1,077
Noble Energy
5.250%, 11/15/2043		150		208
5.050%, 11/15/2044		186		254
4.950%, 08/15/2047		330		456
3.850%, 01/15/2028		990		1,147
Occidental Petroleum
7.875%, 09/15/2031		140		149
7.500%, 05/01/2031		240		252
6.950%, 07/01/2024		3,107		3,278
5.550%, 03/15/2026		2,180		2,164
4.625%, 06/15/2045		400		332
4.500%, 07/15/2044		1,000		825
4.400%, 04/15/2046		200		168

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.200%, 03/15/2048	$	390	$	314
4.100%, 02/15/2047		1,040		816
3.400%, 04/15/2026		100		90
3.200%, 08/15/2026		1,740		1,540
3.125%, 02/15/2022		810		808
3.000%, 02/15/2027		510		446
2.900%, 08/15/2024		1,260		1,175
2.700%, 08/15/2022		700		690
2.700%, 02/15/2023		150		144
Oleoducto Central
4.000%, 07/14/2027 (C)		884		955
Pertamina Persero
6.000%, 05/03/2042 (C)		1,220		1,555
Petrobras Global Finance
6.850%, 06/05/2115		1,090		1,282
6.250%, 03/17/2024		1,930		2,198
Petroleos del Peru
4.750%, 06/19/2032 (C)		4,690		5,347
Petroleos Mexicanos
7.690%, 01/23/2050		1,840		1,698
6.950%, 01/28/2060		210		180
6.625%, 06/15/2035		2,202		2,028
6.500%, 03/13/2027		1,640		1,646
5.625%, 01/23/2046		1,650		1,319
2.460%, 12/15/2025		1,722		1,797
2.378%, 04/15/2025		783		817
Petroleos Mexicanos MTN
6.875%, 08/04/2026		90		93
6.750%, 09/21/2047		4,865		4,184
Phillips
66 1.300%, 02/15/2026		925		932
Pioneer Natural Resources
1.900%, 08/15/2030		1,783		1,754
Plains All American Pipeline/PAA Finance
4.900%, 02/15/2045		288		290
4.650%, 10/15/2025		2,300		2,518
3.550%, 12/15/2029		1,494		1,532
Rockies Express Pipeline LLC
6.875%, 04/15/2040 (C)		1,270		1,346
4.950%, 07/15/2029 (C)		3,655		3,682
Ruby Pipeline
7.750%, 04/01/2022 (C)(D)		1,886		1,773
Sabine Pass Liquefaction LLC
5.750%, 05/15/2024		2,230		2,539
5.625%, 03/01/2025		1,500		1,734
5.000%, 03/15/2027		2,235		2,588
Saudi Arabian Oil
2.250%, 11/24/2030 (C)		1,063		1,078
1.625%, 11/24/2025 (C)		1,903		1,938
1.250%, 11/24/2023 (C)		840		849
Schlumberger Finance Canada
1.400%, 09/17/2025		850		868

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   113

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Schlumberger Holdings
4.000%, 12/21/2025 (C)	$	660	$	741
3.900%, 05/17/2028 (C)		857		954
Schlumberger Investment
3.650%, 12/01/2023		100		108
Shell International Finance BV
6.375%, 12/15/2038		660		1,024
4.550%, 08/12/2043		490		647
4.375%, 05/11/2045		990		1,277
4.125%, 05/11/2035		2,605		3,254
4.000%, 05/10/2046		170		211
3.750%, 09/12/2046		100		119
3.250%, 04/06/2050		930		1,049
2.750%, 04/06/2030		660		730
Sinopec Group Overseas Development 2014
4.375%, 04/10/2024 (C)		1,020		1,117
Spectra Energy Partners
3.500%, 03/15/2025		1,025		1,119
3.375%, 10/15/2026		140		155
Suncor Energy
3.100%, 05/15/2025		1,415		1,540
Sunoco Logistics Partners Operations
5.400%, 10/01/2047		1,000		1,073
5.350%, 05/15/2045		1,265		1,323
5.300%, 04/01/2044		60		63
4.250%, 04/01/2024		436		467
4.000%, 10/01/2027		1,150		1,237
3.900%, 07/15/2026		250		268
3.450%, 01/15/2023		165		171
Tengizchevroil Finance International
2.625%, 08/15/2025 (C)		1,089		1,126
Tennessee Gas Pipeline LLC
8.375%, 06/15/2032		2,200		3,126
2.900%, 03/01/2030 (C)		2,770		2,923
Total Capital International
3.127%, 05/29/2050		1,043		1,144
TransCanada PipeLines
4.625%, 03/01/2034		2,125		2,537
Transcontinental Gas Pipe Line LLC
7.850%, 02/01/2026		1,390		1,805
3.950%, 05/15/2050 (C)		1,130		1,251
3.250%, 05/15/2030 (C)		704		780
Valero Energy
1.200%, 03/15/2024		2,726		2,730
Western Midstream Operating
4.350%, 02/01/2025		330		329
2.074%, VAR ICE LIBOR USD 3 Month+1.850%, 01/13/2023		220		213
Williams
8.750%, 03/15/2032		1,284		1,849
7.875%, 09/01/2021		130		137
7.750%, 06/15/2031		339		455

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
7.500%, 01/15/2031	$	9	$	12
5.100%, 09/15/2045		100		121
3.900%, 01/15/2025		1,972		2,178
3.750%, 06/15/2027		410		462
3.600%, 03/15/2022		124		128
				286,453
Financials — 8.8%
Aegon
0.871%, VAR USD ICE Swap 11:00 NY 10 Yr+0.100%(E)		2,180		1,790
Affiliated Managers Group
3.300%, 06/15/2030		2,130		2,320
Ally Financial
5.750%, 11/20/2025		2,396		2,799
5.125%, 09/30/2024		2,202		2,526
1.450%, 10/02/2023		4,003		4,081
American Express
4.200%, 11/06/2025		250		290
4.050%, 12/03/2042		70		89
3.700%, 08/03/2023		1,305		1,417
3.400%, 02/27/2023		285		303
2.500%, 08/01/2022		3,890		4,023
2.500%, 07/30/2024		3,000		3,194
American Express Credit MTN
0.932%, VAR ICE LIBOR USD 3 Month+0.700%, 03/03/2022		2,560		2,579
American Financial Group
5.250%, 04/02/2030		1,717		2,074
American International Group
6.250%, VAR ICE LIBOR USD 3 Month+2.056%, 03/15/2037		2,578		2,891
4.750%, 04/01/2048		1,578		2,135
4.500%, 07/16/2044		890		1,144
4.200%, 04/01/2028		1,001		1,192
3.900%, 04/01/2026		1,300		1,485
3.400%, 06/30/2030		1,503		1,711
2.500%, 06/30/2025		410		440
Andrew W Mellon Foundation
0.947%, 08/01/2027		812		811
Apollo Management Holdings
5.000%, 03/15/2048 (C)		1,450		1,789
4.400%, 05/27/2026 (C)		1,015		1,180
Arch Capital Group
3.635%, 06/30/2050		884		1,043
Ares Capital
3.875%, 01/15/2026		1,247		1,310
Athene Global Funding
3.000%, 07/01/2022 (C)		1,105		1,141
2.950%, 11/12/2026 (C)		3,910		4,149
Athene Holding
6.150%, 04/03/2030		1,047		1,305

  114   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.125%, 01/12/2028	$	1,140	$	1,264
3.500%, 01/15/2031		502		531
Aviation Capital Group LLC
5.500%, 12/15/2024 (C)		1,774		1,899
Avolon Holdings Funding
5.250%, 05/15/2024 (C)		185		197
5.125%, 10/01/2023 (C)		195		205
3.950%, 07/01/2024 (C)		535		549
2.875%, 02/15/2025 (C)		1,420		1,388
Banco Bilbao Vizcaya Argentaria
1.125%, 09/18/2025		1,400		1,405
Banco Nacional de Comercio Exterior SNC
3.800%, VAR US Treas Yield Curve Rate T Note Const Mat 5 Yr+3.000%, 08/11/2026 (C)		1,390		1,388
Banco Santander
3.848%, 04/12/2023		1,200		1,287
3.490%, 05/28/2030		600		670
2.749%, 12/03/2030		1,600		1,600
2.746%, 05/28/2025		3,400		3,619
1.344%, VAR ICE LIBOR USD 3 Month+1.120%, 04/12/2023		400		403
Bank of America
3.419%, VAR ICE LIBOR USD 3 Month+1.040%, 12/20/2028		5,899		6,643
3.366%, VAR ICE LIBOR USD 3 Month+0.810%, 01/23/2026		1,660		1,821
3.004%, VAR ICE LIBOR USD 3 Month+0.790%, 12/20/2023		3,732		3,919
2.592%, VAR United States Secured Overnight Financing Rate+2.150%, 04/29/2031		2,653		2,823
Bank of America MTN
5.000%, 01/21/2044		1,800		2,573
4.450%, 03/03/2026		5,035		5,879
4.330%, VAR ICE LIBOR USD 3 Month+1.520%, 03/15/2050		1,305		1,727
4.271%, VAR ICE LIBOR USD 3 Month+1.310%, 07/23/2029		625		744
4.250%, 10/22/2026		130		152
4.200%, 08/26/2024		2,720		3,045
4.183%, 11/25/2027		1,888		2,182
4.125%, 01/22/2024		223		247
4.083%, VAR ICE LIBOR USD 3 Month+3.150%, 03/20/2051		5,390		6,870
4.000%, 04/01/2024		2,110		2,338
4.000%, 01/22/2025		2,815		3,156
3.970%, VAR ICE LIBOR USD 3 Month+1.070%, 03/05/2029		1,780		2,071
3.864%, VAR ICE LIBOR USD 3 Month+0.940%, 07/23/2024		1,225		1,329
3.593%, VAR ICE LIBOR USD 3 Month+1.370%, 07/21/2028		710		804

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.550%, VAR ICE LIBOR USD 3 Month+0.780%, 03/05/2024	$	1,310	$	1,395
3.500%, 04/19/2026		2,575		2,914
3.300%, 01/11/2023		3,643		3,863
3.194%, VAR ICE LIBOR USD 3 Month+1.180%, 07/23/2030		1,170		1,307
3.093%, VAR ICE LIBOR USD 3 Month+1.090%, 10/01/2025		3,680		3,979
2.884%, VAR ICE LIBOR USD 3 Month+1.190%, 10/22/2030		1,480		1,620
2.625%, 04/19/2021		70		71
2.496%, VAR ICE LIBOR USD 3 Month+0.990%, 02/13/2031		1,874		1,977
2.456%, VAR ICE LIBOR USD 3 Month+0.870%, 10/22/2025		4,090		4,334
2.015%, VAR ICE LIBOR USD 3 Month+0.640%, 02/13/2026		339		354
1.922%, VAR United States Secured Overnight Financing Rate+1.370%, 10/24/2031		1,115		1,125
1.898%, VAR United States Secured Overnight Financing Rate+1.530%, 07/23/2031		2,730		2,746
1.389%, VAR ICE LIBOR USD 3 Month+1.180%, 10/21/2022		165		166
1.319%, VAR United States Secured Overnight Financing Rate+1.150%, 06/19/2026		4,570		4,628
1.197%, VAR United States Secured Overnight Financing Rate+1.010%, 10/24/2026		3,436		3,462
0.981%, VAR United States Secured Overnight Financing Rate+0.910%, 09/25/2025		3,007		3,027
0.810%, VAR United States Secured Overnight Financing Rate+0.740%, 10/24/2024		3,569		3,583
Bank of Montreal MTN
2.550%, 11/06/2022		200		208
1.850%, 05/01/2025		1,360		1,425
Bank of New York Mellon
3.550%, 09/23/2021		144		147
Bank of New York Mellon MTN
3.650%, 02/04/2024		150		164
3.442%, VAR ICE LIBOR USD 3 Month+1.069%, 02/07/2028		1,920		2,201
3.250%, 09/11/2024		270		296
3.250%, 05/16/2027		270		305
1.600%, 04/24/2025		410		427
Bank of Nova Scotia
4.900%, VAR US Treas Yield Curve Rate T Note Const Mat 5 Yr+4.551%(E)		1,140		1,222

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   115

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
2.000%, 11/15/2022	$	2,095	$	2,164
1.300%, 06/11/2025		760		777
Barclays
5.088%, VAR ICE LIBOR USD 3 Month+3.054%, 06/20/2030		2,245		2,647
3.684%, 01/10/2023		1,220		1,259
Barclays MTN
4.972%, VAR ICE LIBOR USD 3 Month+1.902%, 05/16/2029		1,070		1,283
4.338%, VAR ICE LIBOR USD 3 Month+1.356%, 05/16/2024		1,285		1,387
Barclays Bank
1.700%, 05/12/2022		2,860		2,911
BBVA USA
3.875%, 04/10/2025		910		1,011
Berkshire Hathaway
3.750%, 08/15/2021 (D)		488		500
Berkshire Hathaway Finance
4.250%, 01/15/2049		1,260		1,707
4.200%, 08/15/2048		805		1,081
Blackstone
3.625%, 01/15/2026 (C)		1,255		1,284
BNP Paribas
5.198%, VAR ICE LIBOR USD 3 Month+2.567%, 01/10/2030 (C)		1,220		1,517
4.705%, VAR ICE LIBOR USD 3 Month+2.235%, 01/10/2025 (C)		1,450		1,610
4.400%, 08/14/2028 (C)		1,420		1,682
3.375%, 01/09/2025 (C)		420		458
2.219%, VAR United States Secured Overnight Financing Rate+2.074%, 06/09/2026 (C)		950		989
BNP Paribas MTN
4.375%, VAR USD Swap Semi 30/360 5 Yr Curr+1.483%, 03/01/2033 (C)		380		432
BPCE
5.150%, 07/21/2024 (C)		1,550		1,756
Brighthouse Financial
4.700%, 06/22/2047		751		777
Brookfield Finance
4.350%, 04/15/2030		1,746		2,112
Canadian Imperial Bank of Commerce
0.950%, 06/23/2023		750		759
0.950%, 10/23/2025 (D)		1,750		1,762
Chubb INA Holdings
3.350%, 05/03/2026		420		475
Citadel
4.875%, 01/15/2027 (C)		1,240		1,350
Citibank
0.824%, VAR ICE LIBOR USD 3 Month+0.600%, 05/20/2022		4,745		4,754
Citigroup
8.125%, 07/15/2039		1,871		3,391

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
5.500%, 09/13/2025	$	1,370	$	1,649
5.316%, VAR United States Secured Overnight Financing Rate+4.548%, 03/26/2041		1,260		1,786
5.300%, 05/06/2044		255		360
4.750%, 05/18/2046		150		201
4.650%, 07/30/2045		1,140		1,550
4.650%, 07/23/2048		795		1,105
4.600%, 03/09/2026		2,785		3,253
4.500%, 01/14/2022		50		52
4.450%, 09/29/2027		1,380		1,619
4.412%, VAR United States Secured Overnight Financing Rate+3.914%, 03/31/2031		2,020		2,434
4.400%, 06/10/2025		2,040		2,336
4.300%, 11/20/2026		590		683
4.125%, 07/25/2028		260		303
3.887%, VAR ICE LIBOR USD 3 Month+1.563%, 01/10/2028		545		622
3.875%, 10/25/2023		1,340		1,472
3.700%, 01/12/2026		625		707
3.500%, 05/15/2023		930		996
3.352%, VAR ICE LIBOR USD 3 Month+0.897%, 04/24/2025		3,600		3,899
3.200%, 10/21/2026		3,504		3,892
3.142%, VAR ICE LIBOR USD 3 Month+0.722%, 01/24/2023		780		803
3.106%, VAR United States Secured Overnight Financing Rate+2.750%, 04/08/2026		560		608
2.572%, VAR United States Secured Overnight Financing Rate+2.107%, 06/03/2031		8,390		8,914
1.678%, VAR United States Secured Overnight Financing Rate+1.667%, 05/15/2024		800		821
0.776%, VAR United States Secured Overnight Financing Rate+0.686%, 10/30/2024		2,296		2,303
CME Group
3.000%, 09/15/2022		400		419
Cooperatieve Rabobank UA
4.625%, 12/01/2023		2,060		2,293
4.375%, 08/04/2025		1,580		1,806
Cooperatieve Rabobank UA MTN
3.875%, 02/08/2022		300		313
1.339%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+1.000%, 06/24/2026 (C)		570		579
Credit Agricole SA/London MTN
1.907%, VAR United States Secured Overnight Financing Rate+1.676%, 06/16/2026 (C)		630		650

  116   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Credit Suisse AG/New York NY
2.950%, 04/09/2025	$	790	$	865
1.000%, 05/05/2023		4,510		4,571
Credit Suisse AG/New York NY MTN
3.625%, 09/09/2024		1,360		1,511
Credit Suisse Group
4.207%, VAR ICE LIBOR USD 3 Month+1.240%, 06/12/2024 (C)		1,295		1,404
4.194%, VAR United States Secured Overnight Financing Rate+3.730%, 04/01/2031 (C)		4,517		5,317
2.997%, VAR ICE LIBOR USD 3 Month+1.200%, 12/14/2023 (C)		1,203		1,257
2.593%, VAR United States Secured Overnight Financing Rate+1.560%, 09/11/2025 (C)		473		499
2.193%, VAR United States Secured Overnight Financing Rate+2.044%, 06/05/2026 (C)		2,517		2,620
Credit Suisse Group Funding Guernsey
3.800%, 06/09/2023		1,084		1,167
Danske Bank
5.375%, 01/12/2024 (C)		940		1,059
5.000%, 01/12/2022 (C)		2,677		2,802
3.244%, VAR ICE LIBOR USD 3 Month+1.591%, 12/20/2025 (C)		4,342		4,640
3.001%, VAR ICE LIBOR USD 3 Month+1.249%, 09/20/2022 (C)		3,817		3,882
1.226%, 06/22/2024 (C)		550		557
1.171%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+1.030%, 12/08/2023 (C)		2,714		2,725
Deutsche Bank NY
2.222%, VAR United States Secured Overnight Financing Rate+2.159%, 09/18/2024		1,375		1,403
2.129%, VAR United States Secured Overnight Financing Rate+1.870%, 11/24/2026		2,061		2,086
Equitable Holdings
3.900%, 04/20/2023		1,400		1,511
Farmers Exchange Capital
7.200%, 07/15/2048 (C)		1,788		2,364
Farmers Exchange Capital II
6.151%, VAR ICE LIBOR USD 3 Month+3.744%, 11/01/2053 (C)		4,120		5,252
Fidelity & Guaranty Life Holdings
5.500%, 05/01/2025 (C)		682		788
Fidelity National Financial
3.400%, 06/15/2030		860		948
Fifth Third Bank
2.875%, 10/01/2021		1,870		1,906

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Franklin Resources
1.600%, 10/30/2030	$	1,616	$	1,596
Goldman Sachs Capital II
4.000%, VAR ICE LIBOR USD 3 Month+0.768%(E)		595		570
Goldman Sachs Group
6.750%, 10/01/2037		2,762		4,232
6.250%, 02/01/2041		1,290		2,033
5.250%, 07/27/2021		3,660		3,778
5.150%, 05/22/2045		1,870		2,624
4.750%, 10/21/2045		780		1,091
4.250%, 10/21/2025		1,090		1,252
4.223%, VAR ICE LIBOR USD 3 Month+1.301%, 05/01/2029		500		594
3.800%, 03/15/2030		5,120		5,997
3.750%, 05/22/2025		500		559
3.750%, 02/25/2026		1,445		1,640
3.691%, VAR ICE LIBOR USD 3 Month+1.510%, 06/05/2028		640		734
3.625%, 01/22/2023		508		542
3.500%, 01/23/2025		150		165
3.500%, 04/01/2025		3,470		3,841
3.500%, 11/16/2026		3,382		3,792
3.272%, VAR ICE LIBOR USD 3 Month+1.201%, 09/29/2025		3,770		4,111
3.200%, 02/23/2023		670		709
2.908%, VAR ICE LIBOR USD 3 Month+1.053%, 06/05/2023		410		425
1.325%, VAR ICE LIBOR USD 3 Month+1.110%, 04/26/2022		225		226
0.627%, VAR United States Secured Overnight Financing Rate+0.538%, 11/17/2023		5,552		5,566
Goldman Sachs Group MTN
4.800%, 07/08/2044		260		362
2.905%, VAR ICE LIBOR USD 3 Month+0.990%, 07/24/2023		1,060		1,102
Golub Capital BDC
3.375%, 04/15/2024		3,439		3,462
Guardian Life Global Funding
1.100%, 06/23/2025 (C)		1,330		1,345
HSBC Bank PLC
7.650%, 05/01/2025		796		990
4.750%, 01/19/2021 (C)		250		251
HSBC Bank USA
7.000%, 01/15/2039		510		801
HSBC Holdings
4.950%, 03/31/2030		785		978
4.583%, VAR ICE LIBOR USD 3 Month+1.535%, 06/19/2029		4,685		5,525
4.300%, 03/08/2026		5,405		6,206
4.250%, 03/14/2024		1,190		1,305
4.250%, 08/18/2025		1,290		1,453

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   117

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.041%, VAR ICE LIBOR USD 3 Month+1.546%, 03/13/2028	$	830	$	943
3.973%, VAR ICE LIBOR USD 3 Month+1.610%, 05/22/2030		1,720		1,982
3.262%, VAR ICE LIBOR USD 3 Month+1.055%, 03/13/2023		155		160
2.633%, VAR ICE LIBOR USD 3 Month+1.140%, 11/07/2025		755		796
2.099%, VAR United States Secured Overnight Financing Rate+1.929%, 06/04/2026		200		206
2.013%, VAR United States Secured Overnight Financing Rate+1.732%, 09/22/2028		6,723		6,832
1.645%, VAR United States Secured Overnight Financing Rate+1.538%, 04/18/2026		3,299		3,347
1.589%, VAR United States Secured Overnight Financing Rate+1.290%, 05/24/2027		6,215		6,267
ING Bank
5.800%, 09/25/2023 (C)		202		228
Intercontinental Exchange
2.650%, 09/15/2040		499		519
1.850%, 09/15/2032		1,427		1,441
Intesa Sanpaolo
3.375%, 01/12/2023 (C)		490		512
3.125%, 07/14/2022 (C)		1,420		1,469
Intesa Sanpaolo MTN
5.710%, 01/15/2026 (C)		1,260		1,430
5.017%, 06/26/2024 (C)		870		950
JPMorgan Chase
8.750%, 09/01/2030		1,725		2,558
6.400%, 05/15/2038		385		609
4.950%, 06/01/2045		300		428
4.452%, VAR ICE LIBOR USD 3 Month+1.330%, 12/05/2029		740		898
4.250%, 10/01/2027		2,590		3,053
4.203%, VAR ICE LIBOR USD 3 Month+1.260%, 07/23/2029		940		1,118
4.125%, 12/15/2026		2,420		2,830
4.032%, VAR ICE LIBOR USD 3 Month+1.460%, 07/24/2048		725		932
4.023%, VAR ICE LIBOR USD 3 Month+1.000%, 12/05/2024		6,275		6,909
3.900%, 07/15/2025		1,635		1,851
3.897%, VAR ICE LIBOR USD 3 Month+1.220%, 01/23/2049		245		312
3.882%, VAR ICE LIBOR USD 3 Month+1.360%, 07/24/2038		215		262
3.875%, 09/10/2024		440		491
3.797%, VAR ICE LIBOR USD 3 Month+0.890%, 07/23/2024		2,010		2,179

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.625%, 05/13/2024	$	1,490	$	1,643
3.625%, 12/01/2027		1,000		1,134
3.200%, 06/15/2026		740		827
3.109%, VAR United States Secured Overnight Financing Rate+2.440%, 04/22/2051		210		235
2.972%, 01/15/2023		165		170
2.956%, VAR United States Secured Overnight Financing Rate+2.515%, 05/13/2031		3,245		3,543
2.739%, VAR United States Secured Overnight Financing Rate+1.510%, 10/15/2030		370		401
2.700%, 05/18/2023		1,310		1,379
2.522%, VAR United States Secured Overnight Financing Rate+2.040%, 04/22/2031		1,060		1,138
2.301%, VAR United States Secured Overnight Financing Rate+1.160%, 10/15/2025		3,120		3,299
2.182%, VAR United States Secured Overnight Financing Rate+1.890%, 06/01/2028		2,044		2,148
2.083%, VAR United States Secured Overnight Financing Rate+1.850%, 04/22/2026		1,280		1,343
2.005%, VAR United States Secured Overnight Financing Rate+1.585%, 03/13/2026		75		78
1.764%, VAR United States Secured Overnight Financing Rate+1.105%, 11/19/2031		2,043		2,053
1.514%, VAR United States Secured Overnight Financing Rate+1.455%, 06/01/2024		2,130		2,182
1.045%, VAR United States Secured Overnight Financing Rate+0.800%, 11/19/2026		4,085		4,108
0.760%, VAR ICE LIBOR USD 3 Month+0.550%, 02/01/2027		2,740		2,548
KKR Group Finance II LLC
5.500%, 02/01/2043 (C)		120		160
KKR Group Finance III LLC
5.125%, 06/01/2044 (C)		1,005		1,290
Landwirtschaftliche Rentenbank
0.500%, 05/27/2025 (D)		4,087		4,096
Lehman Brothers Holdings
6.500%, 12/31/2049 (F)		4,040		–
Lehman Brothers Holdings MTN
6.750%, 12/31/2049 (F)		10,370		–

  118   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Lehman Brothers Holdings Capital Trust VII MTN
5.857%, VAR ICE LIBOR USD 3 Month+0.840%(E)(F)	$	20,630	$	–
Lloyds Bank
3.500%, 05/14/2025		100		111
Lloyds Banking Group
4.375%, 03/22/2028		1,180		1,400
4.050%, 08/16/2023		530		578
3.900%, 03/12/2024		2,530		2,772
3.100%, 07/06/2021		2,610		2,653
2.907%, VAR ICE LIBOR USD 3 Month+0.810%, 11/07/2023		2,545		2,657
Macquarie Bank
3.624%, 06/03/2030 (C)		765		830
MassMutual Global Funding II
2.500%, 10/17/2022 (C)		261		272
2.250%, 07/01/2022 (C)		2,640		2,722
MassMutual Global Funding II MTN
0.850%, 06/09/2023 (C)		2,220		2,245
Mercury General
4.400%, 03/15/2027		1,720		1,888
MetLife
6.400%, 12/15/2036		1,400		1,789
Metropolitan Life Global Funding I
3.450%, 12/18/2026 (C)		2,865		3,276
0.900%, 06/08/2023 (C)		1,540		1,560
Morgan Stanley
3.737%, VAR ICE LIBOR USD 3 Month+0.847%, 04/24/2024		1,810		1,946
3.625%, 01/20/2027		1,801		2,058
Morgan Stanley MTN
5.500%, 07/28/2021		200		207
4.431%, VAR ICE LIBOR USD 3 Month+1.628%, 01/23/2030		725		884
4.350%, 09/08/2026		235		276
4.100%, 05/22/2023		2,290		2,480
4.000%, 07/23/2025		2,956		3,380
3.875%, 04/29/2024		4,325		4,782
3.772%, VAR ICE LIBOR USD 3 Month+1.140%, 01/24/2029		280		324
3.700%, 10/23/2024		370		411
3.622%, VAR United States Secured Overnight Financing Rate+3.120%, 04/01/2031		4,771		5,559
3.591%, VAR ICE LIBOR USD 3 Month+1.340%, 07/22/2028		270		307
3.125%, 07/27/2026		525		586
2.720%, VAR United States Secured Overnight Financing Rate+1.152%, 07/22/2025		2,085		2,229

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
2.699%, VAR United States Secured Overnight Financing Rate+1.143%, 01/22/2031	$	890	$	967
2.188%, VAR United States Secured Overnight Financing Rate+1.990%, 04/28/2026		2,360		2,489
1.794%, VAR United States Secured Overnight Financing Rate+1.034%, 02/13/2032		4,090		4,122
0.864%, VAR United States Secured Overnight Financing Rate+0.745%, 10/21/2025		2,403		2,414
0.560%, VAR United States Secured Overnight Financing Rate+0.466%, 11/10/2023		2,386		2,388
National Australia Bank MTN
2.332%, 08/21/2030 (C)		1,898		1,922
National Securities Clearing
1.500%, 04/23/2025 (C)		6,290		6,513
1.200%, 04/23/2023 (C)		620		632
Nationwide Building Society
4.363%, VAR ICE LIBOR USD 3 Month+1.392%, 08/01/2024 (C)		3,490		3,791
3.766%, VAR ICE LIBOR USD 3 Month+1.064%, 03/08/2024 (C)		1,250		1,328
Nationwide Financial Services
5.375%, 03/25/2021 (C)		150		152
3.900%, 11/30/2049 (C)		1,603		1,750
Nationwide Mutual Insurance
4.350%, 04/30/2050 (C)		858		1,005
2.540%, VAR ICE LIBOR USD 3 Month+2.290%, 12/15/2024 (C)		4,407		4,402
Natwest Group
4.519%, VAR ICE LIBOR USD 3 Month+1.550%, 06/25/2024		820		892
3.875%, 09/12/2023		1,340		1,452
3.754%, VAR US Treas Yield Curve Rate T Note Const Mat 5 Yr+2.100%, 11/01/2029		1,022		1,081
3.073%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+2.550%, 05/22/2028		1,028		1,106
2.359%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+2.150%, 05/22/2024		567		588
New York Life Global Funding
2.875%, 04/10/2024 (C)		2,155		2,316
0.950%, 06/24/2025 (C)		550		557
New York Life Insurance
6.750%, 11/15/2039 (C)		765		1,179
3.750%, 05/15/2050 (C)		1,300		1,550
Nomura Holdings
3.103%, 01/16/2030		2,186		2,379

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   119

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
2.679%, 07/16/2030	$	992	$	1,050
2.648%, 01/16/2025		2,049		2,177
Nordea Bank ABP
4.875%, 05/13/2021 (C)		1,730		1,764
1.000%, 06/09/2023 (C)		1,370		1,389
Northern Trust
2.375%, 08/02/2022		300		311
Northwestern Mutual Life Insurance
3.625%, 09/30/2059 (C)		2,550		2,935
Ohio National Financial Services
5.550%, 01/24/2030 (C)		1,155		1,159
Park Aerospace Holdings
5.500%, 02/15/2024 (C)		850		908
4.500%, 03/15/2023 (C)		4,470		4,657
PNC Financial Services Group
3.500%, 01/23/2024		255		277
Principal Life Global Funding II
1.250%, 06/23/2025 (C)		270		276
Raymond James Financial
4.950%, 07/15/2046		1,525		2,095
Royal Bank of Canada
0.438%, 06/29/2085 (B)		860		679
Royal Bank of Canada MTN
3.200%, 04/30/2021		760		769
2.250%, 11/01/2024		170		181
1.600%, 04/17/2023		1,170		1,203
1.150%, 06/10/2025		730		744
Santander Holdings USA
4.500%, 07/17/2025		148		165
4.400%, 07/13/2027		771		874
3.450%, 06/02/2025		4,015		4,347
3.400%, 01/18/2023		489		514
3.244%, 10/05/2026		1,529		1,652
Santander UK Group Holdings
5.625%, 09/15/2045 (C)		210		287
4.796%, VAR ICE LIBOR USD 3 Month+1.570%, 11/15/2024		4,580		5,085
1.532%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+1.250%, 08/21/2026		4,370		4,400
Scentre Group Trust 1
4.375%, 05/28/2030 (C)		1,135		1,293
3.625%, 01/28/2026 (C)		2,190		2,377
Societe Generale
0.335%, VAR ICE LIBOR USD 6 Month+0.075%(E)		860		757
Societe Generale MTN
3.653%, VAR US Treas Yield Curve Rate T Note Const Mat 5 Yr+3.000%, 07/08/2035 (C)		876		921
2.625%, 01/22/2025 (C)		1,345		1,415

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Standard Chartered
5.700%, 03/26/2044 (C)	$	427	$	565
5.200%, 01/26/2024 (C)		410		450
State Street
3.300%, 12/16/2024		310		344
3.152%, VAR United States Secured Overnight Financing Rate+2.650%, 03/30/2031		1,500		1,721
Swedbank
1.300%, 06/02/2023 (C)		930		948
Teachers Insurance & Annuity Association of America
6.850%, 12/16/2039 (C)		148		229
4.900%, 09/15/2044 (C)		600		804
4.270%, 05/15/2047 (C)		175		216
3.300%, 05/15/2050��(C)		4,055		4,425
Toronto-Dominion Bank MTN
3.250%, 06/11/2021		930		945
1.900%, 12/01/2022		770		794
1.150%, 06/12/2025		730		746
0.750%, 06/12/2023		1,430		1,442
Travelers
4.600%, 08/01/2043		50		69
Truist Bank
3.800%, 10/30/2026		250		288
2.450%, 08/01/2022		250		259
Truist Financial MTN
2.750%, 04/01/2022		375		386
2.200%, 03/16/2023		5,475		5,688
Trust Fibra Uno
6.390%, 01/15/2050 (C)		588		649
4.869%, 01/15/2030 (C)		831		918
UBS Group
4.253%, 03/23/2028 (C)		1,940		2,268
4.125%, 09/24/2025 (C)		1,010		1,155
3.491%, 05/23/2023 (C)		1,710		1,781
2.859%, VAR ICE LIBOR USD 3 Month+0.954%, 08/15/2023 (C)		240		249
1.364%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+1.080%, 01/30/2027 (C)		2,091		2,113
UBS/London
1.750%, 04/21/2022 (C)		1,310		1,335
US Bancorp
2.400%, 07/30/2024		3,710		3,945
1.450%, 05/12/2025		1,610		1,662
US Bancorp MTN
3.600%, 09/11/2024		160		177
2.950%, 07/15/2022		497		517
US Bank North America/Cincinnatti, Ohio
3.150%, 04/26/2021		750		757

  120   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
USAA Capital
1.500%, 05/01/2023 (C)	$	150	$	154
Validus Holdings
8.875%, 01/26/2040		1,460		2,411
Wachovia Capital Trust III
5.570%, VAR ICE LIBOR USD 3 Month+0.930%(E)		4,442		4,493
WEA Finance LLC / Westfield UK & Europe Finance
3.750%, 09/17/2024 (C)		1,370		1,435
Wells Fargo
7.950%, 11/15/2029		925		1,244
5.950%, 12/15/2036		520		694
5.606%, 01/15/2044		700		1,003
5.375%, 11/02/2043		220		311
4.480%, 01/16/2024		392		434
3.069%, 01/24/2023		1,340		1,379
3.068%, VAR United States Secured Overnight Financing Rate+2.530%, 04/30/2041		5,960		6,492
3.000%, 10/23/2026		1,640		1,806
2.188%, VAR United States Secured Overnight Financing Rate+2.000%, 04/30/2026		3,865		4,046
Wells Fargo MTN
5.013%, VAR ICE LIBOR USD 3 Month+4.240%, 04/04/2051		13,775		19,672
4.900%, 11/17/2045		1,310		1,752
4.750%, 12/07/2046		2,365		3,147
4.650%, 11/04/2044		560		722
4.600%, 04/01/2021		500		507
4.478%, VAR ICE LIBOR USD 3 Month+3.770%, 04/04/2031		5,855		7,135
4.400%, 06/14/2046		220		279
4.300%, 07/22/2027		1,180		1,377
4.150%, 01/24/2029		1,450		1,718
3.750%, 01/24/2024		360		391
3.584%, VAR ICE LIBOR USD 3 Month+1.310%, 05/22/2028		2,075		2,346
3.500%, 03/08/2022		250		260
3.450%, 02/13/2023		685		727
3.196%, VAR ICE LIBOR USD 3 Month+1.170%, 06/17/2027		3,675		4,057
2.879%, VAR ICE LIBOR USD 3 Month+1.170%, 10/30/2030		3,925		4,267
2.572%, VAR ICE LIBOR USD 3 Month+1.000%, 02/11/2031		415		441
2.406%, VAR ICE LIBOR USD 3 Month+0.825%, 10/30/2025		2,570		2,710
2.393%, VAR United States Secured Overnight Financing Rate+2.100%, 06/02/2028		2,410		2,543

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Westpac Banking
2.963%, 11/16/2040	$	411	$	443
2.668%, VAR US Treas Yield Curve Rate T Note Const Mat 5 Yr+1.750%, 11/15/2035		2,545		2,631
				724,116
Health Care — 2.9%
Abbott Laboratories
4.900%, 11/30/2046		840		1,255
4.750%, 11/30/2036		440		606
3.750%, 11/30/2026		1,245		1,451
1.150%, 01/30/2028		600		608
AbbVie
5.000%, 12/15/2021		173		179
4.875%, 11/14/2048		1,100		1,498
4.500%, 05/14/2035		845		1,074
4.450%, 05/14/2046		659		836
4.400%, 11/06/2042		2,350		2,956
4.300%, 05/14/2036		483		598
4.250%, 11/14/2028		1,295		1,564
4.250%, 11/21/2049		9,570		12,091
4.050%, 11/21/2039		1,690		2,052
3.800%, 03/15/2025		4,538		5,070
3.750%, 11/14/2023		339		370
3.600%, 05/14/2025		1,605		1,786
3.450%, 03/15/2022		470		486
3.200%, 05/14/2026		145		161
3.200%, 11/21/2029		5,061		5,723
2.950%, 11/21/2026		1,276		1,411
2.900%, 11/06/2022		2,488		2,601
2.600%, 11/21/2024		4,419		4,730
2.300%, 11/21/2022		4,991		5,167
Amgen
5.150%, 11/15/2041		316		439
4.663%, 06/15/2051		389		526
3.625%, 05/22/2024		220		241
3.150%, 02/21/2040		1,006		1,090
2.770%, 09/01/2053 (C)		438		433
Anthem
4.625%, 05/15/2042		219		288
3.700%, 08/15/2021		290		294
3.650%, 12/01/2027		330		379
3.500%, 08/15/2024		1,950		2,137
3.350%, 12/01/2024		1,190		1,310
3.300%, 01/15/2023		133		141
3.125%, 05/15/2022		740		769
2.950%, 12/01/2022		560		587
2.250%, 05/15/2030		1,767		1,857
AstraZeneca
3.500%, 08/17/2023		1,735		1,872
0.700%, 04/08/2026		1,383		1,379

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   121

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Baxalta
3.600%, 06/23/2022	$	870	$	906
Baxter International
3.950%, 04/01/2030 (C)		890		1,066
Becton Dickinson
4.685%, 12/15/2044		469		607
3.734%, 12/15/2024		1,630		1,800
3.363%, 06/06/2024		1,170		1,266
2.823%, 05/20/2030		1,000		1,094
Biogen
5.200%, 09/15/2045		250		334
3.625%, 09/15/2022		815		861
Bristol-Myers Squibb
5.000%, 08/15/2045		130		189
4.350%, 11/15/2047		319		434
4.250%, 10/26/2049		542		734
3.900%, 02/20/2028		1,032		1,223
3.875%, 08/15/2025		1,200		1,368
3.550%, 08/15/2022		550		580
3.450%, 11/15/2027		961		1,106
3.400%, 07/26/2029		1,686		1,970
3.200%, 06/15/2026		1,170		1,314
2.900%, 07/26/2024		3,170		3,416
2.600%, 05/16/2022		830		858
2.550%, 11/13/2050		1,641		1,695
2.350%, 11/13/2040		535		551
2.250%, 08/15/2021		660		669
1.450%, 11/13/2030		2,497		2,507
1.125%, 11/13/2027		2,140		2,152
0.750%, 11/13/2025		1,427		1,429
Centene
3.000%, 10/15/2030		8,506		8,953
Cigna
4.900%, 12/15/2048		1,000		1,378
4.375%, 10/15/2028		1,454		1,750
4.125%, 11/15/2025		585		673
3.875%, 10/15/2047		2,185		2,622
3.750%, 07/15/2023		1,347		1,458
3.400%, 09/17/2021		2,048		2,097
3.400%, 03/01/2027		1,034		1,162
3.400%, 03/15/2050		250		282
3.250%, 04/15/2025		1,000		1,098
2.400%, 03/15/2030		800		851
CommonSpirit Health
4.350%, 11/01/2042		885		1,027
CVS Health
5.125%, 07/20/2045		170		229
5.050%, 03/25/2048		9,523		12,846
4.780%, 03/25/2038		513		651
4.300%, 03/25/2028		7,809		9,176
4.250%, 04/01/2050		10		13
4.125%, 04/01/2040		240		286

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.100%, 03/25/2025	$	155	$	176
3.875%, 07/20/2025		929		1,048
3.750%, 04/01/2030		1,835		2,127
3.700%, 03/09/2023		830		888
3.625%, 04/01/2027		1,975		2,244
3.375%, 08/12/2024		95		103
3.000%, 08/15/2026		719		790
2.750%, 12/01/2022		230		239
2.700%, 08/21/2040		496		501
1.750%, 08/21/2030		349		348
1.300%, 08/21/2027		1,575		1,579
Danaher
3.350%, 09/15/2025		667		742
2.600%, 10/01/2050		852		896
DH Europe Finance II Sarl
3.400%, 11/15/2049		13		16
2.600%, 11/15/2029		1,977		2,183
2.200%, 11/15/2024		1,825		1,936
2.050%, 11/15/2022		1,065		1,100
Eli Lilly
2.500%, 09/15/2060		681		688
2.250%, 05/15/2050		1,011		985
Gilead Sciences
4.750%, 03/01/2046		40		53
3.700%, 04/01/2024		1,540		1,682
3.650%, 03/01/2026		890		1,009
2.800%, 10/01/2050		506		505
2.600%, 10/01/2040		818		831
1.650%, 10/01/2030		1,085		1,082
1.200%, 10/01/2027		1,085		1,090
GlaxoSmithKline Capital
3.000%, 06/01/2024		670		723
2.850%, 05/08/2022		50		52
HCA
5.250%, 04/15/2025		750		875
5.250%, 06/15/2049		3,259		4,313
5.125%, 06/15/2039		1,608		2,069
5.000%, 03/15/2024		2,635		2,964
Humana
4.950%, 10/01/2044		200		271
4.800%, 03/15/2047		50		68
4.500%, 04/01/2025		120		138
3.950%, 03/15/2027		860		990
3.850%, 10/01/2024		2,530		2,801
3.150%, 12/01/2022		190		199
Johnson & Johnson
3.700%, 03/01/2046		970		1,249
2.450%, 09/01/2060		2,424		2,545
2.100%, 09/01/2040		238		242
0.950%, 09/01/2027		990		994
0.550%, 09/01/2025		490		491

  122   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Medtronic
4.625%, 03/15/2045	$	123	$	175
Merck
3.700%, 02/10/2045		463		583
2.450%, 06/24/2050		484		502
2.350%, 06/24/2040		484		506
1.450%, 06/24/2030		4,280		4,352
0.750%, 02/24/2026		840		841
Perrigo Finance
4.900%, 12/15/2044		574		646
3.150%, 06/15/2030		1,184		1,254
Pfizer
4.000%, 12/15/2036		1,050		1,340
2.800%, 03/11/2022		640		660
2.700%, 05/28/2050		2,870		3,059
2.625%, 04/01/2030		2,390		2,658
1.700%, 05/28/2030		680		702
0.800%, 05/28/2025		1,050		1,061
Regeneron Pharmaceuticals
2.800%, 09/15/2050		825		806
1.750%, 09/15/2030		2,723		2,679
Royalty Pharma
3.550%, 09/02/2050 (C)		901		927
2.200%, 09/02/2030 (C)		1,430		1,447
1.750%, 09/02/2027 (C)		1,350		1,371
1.200%, 09/02/2025 (C)		1,325		1,336
0.750%, 09/02/2023 (C)		1,995		2,004
Stryker
2.900%, 06/15/2050		1,001		1,067
1.950%, 06/15/2030		629		651
1.150%, 06/15/2025		1,428		1,452
Teva Pharmaceutical Finance
3.650%, 11/10/2021		184		185
Thermo Fisher Scientific
4.497%, 03/25/2030		2,957		3,715
UnitedHealth Group
6.625%, 11/15/2037		200		323
5.800%, 03/15/2036		560		829
4.625%, 07/15/2035		940		1,275
4.450%, 12/15/2048		140		195
4.250%, 06/15/2048		180		244
3.875%, 12/15/2028		250		302
3.875%, 08/15/2059		934		1,232
3.750%, 07/15/2025		330		376
3.750%, 10/15/2047		573		721
3.700%, 12/15/2025		719		823
3.700%, 08/15/2049		140		177
3.500%, 06/15/2023		230		248
3.500%, 08/15/2039		227		270
3.375%, 11/15/2021		400		408
3.125%, 05/15/2060		90		104
2.900%, 05/15/2050		660		735

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
2.875%, 12/15/2021	$	450	$	462
2.875%, 03/15/2023		150		159
2.750%, 05/15/2040		2,125		2,329
2.375%, 10/15/2022		100		104
2.000%, 05/15/2030		1,280		1,360
1.250%, 01/15/2026		260		267
Utah Acquisition Sub
3.950%, 06/15/2026		1,115		1,272
Viatris
4.000%, 06/22/2050 (C)		1,455		1,660
2.300%, 06/22/2027 (C)		420		443
Wyeth LLC
6.450%, 02/01/2024		365		432
5.950%, 04/01/2037		320		482
Zimmer Biomet Holdings
3.550%, 04/01/2025		225		248
				243,980
Industrials — 2.5%
3M
3.700%, 04/15/2050		1,370		1,714
3.250%, 08/26/2049		460		533
3.050%, 04/15/2030		511		584
2.375%, 08/26/2029		2,320		2,528
AerCap Ireland Capital DAC / AerCap Global Aviation Trust
6.500%, 07/15/2025		1,337		1,546
5.000%, 10/01/2021		2,025		2,090
4.875%, 01/16/2024		635		685
4.625%, 07/01/2022		289		303
4.125%, 07/03/2023		1,935		2,049
3.950%, 02/01/2022		341		350
3.650%, 07/21/2027		1,120		1,159
3.500%, 05/26/2022		3,366		3,462
3.150%, 02/15/2024		1,379		1,424
Air Lease
3.500%, 01/15/2022		1,000		1,028
3.375%, 07/01/2025		490		517
3.250%, 03/01/2025		525		551
Air Lease MTN
2.300%, 02/01/2025		605		614
American Airlines Pass-Through Trust, Ser 2011-1, Cl A
5.250%, 01/31/2021		29		29
American Airlines Pass-Through Trust, Ser 2015-1, Cl A
3.375%, 05/01/2027		98		84
BAE Systems
4.750%, 10/11/2021 (C)		2,455		2,543
Boeing
7.250%, 06/15/2025		107		129
5.930%, 05/01/2060		700		947

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   123

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
5.805%, 05/01/2050	$	2,578	$	3,409
5.705%, 05/01/2040		910		1,151
5.150%, 05/01/2030		1,240		1,462
5.040%, 05/01/2027		355		407
4.875%, 05/01/2025		2,290		2,555
4.508%, 05/01/2023		2,225		2,380
3.750%, 02/01/2050		1,136		1,143
3.625%, 02/01/2031		1,818		1,932
3.250%, 02/01/2028		1,444		1,509
3.250%, 02/01/2035		1,480		1,455
3.200%, 03/01/2029		720		738
3.100%, 05/01/2026		230		239
2.800%, 03/01/2027		280		283
2.700%, 02/01/2027		1,165		1,175
Burlington Northern Santa Fe LLC
7.290%, 06/01/2036		200		318
4.550%, 09/01/2044		1,220		1,703
4.100%, 06/01/2021		449		453
3.650%, 09/01/2025		140		159
3.050%, 09/01/2022		300		312
3.050%, 02/15/2051		476		550
Canadian Pacific Railway
6.125%, 09/15/2115		34		55
Carrier Global
3.577%, 04/05/2050 (C)		340		384
3.377%, 04/05/2040 (C)		360		397
2.722%, 02/15/2030 (C)		570		607
2.700%, 02/15/2031 (C)		340		363
Caterpillar
4.300%, 05/15/2044		50		67
Caterpillar Financial Services MTN
2.850%, 05/17/2024		370		399
CCL Industries
3.050%, 06/01/2030 (C)		1,530		1,665
Cintas No. 2
3.700%, 04/01/2027		590		679
2.900%, 04/01/2022		610		630
CNH Industrial Capital LLC
1.875%, 01/15/2026		1,890		1,935
Continental Airlines Pass-Through Trust, Ser 2007-1, Cl A
5.983%, 04/19/2022		4,111		4,106
Continental Airlines Pass-Through Trust, Ser 2007-1, Cl B
6.903%, 04/19/2022		10		10
Continental Airlines Pass-Through Trust, Ser 2010-1, Cl A
4.750%, 01/12/2021		63		63
Continental Airlines Pass-Through Trust, Ser 2012-2, Cl A
4.000%, 10/29/2024		49		48

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
CoStar Group
2.800%, 07/15/2030 (C)	$	1,485	$	1,557
Crowley Conro LLC
4.181%, 08/15/2043		846		1,021
CSX
4.750%, 11/15/2048		461		643
4.300%, 03/01/2048		82		108
Deere
3.750%, 04/15/2050		2,538		3,304
3.100%, 04/15/2030		160		184
2.750%, 04/15/2025		1,391		1,514
Delta Air Lines
4.750%, 10/20/2028 (C)		2,702		2,907
4.500%, 10/20/2025 (C)		3,477		3,670
Delta Air Lines Pass-Through Trust, Ser 2020-1, Cl AA
2.000%, 06/10/2028		3,000		2,972
Eaton
7.625%, 04/01/2024		325		388
4.150%, 11/02/2042		530		667
4.000%, 11/02/2032		99		121
2.750%, 11/02/2022		1,740		1,819
Equifax
3.950%, 06/15/2023		3,015		3,258
2.600%, 12/15/2025		445		482
GE Capital Funding LLC
4.400%, 05/15/2030 (C)		3,612		4,161
3.450%, 05/15/2025 (C)		805		875
GE Capital International Funding Unlimited
4.418%, 11/15/2035		14,077		16,228
General Dynamics
4.250%, 04/01/2040		1,915		2,517
4.250%, 04/01/2050		2,380		3,295
General Electric
4.350%, 05/01/2050		942		1,111
4.250%, 05/01/2040		1,420		1,616
3.625%, 05/01/2030		2,844		3,190
3.450%, 05/01/2027		2,134		2,348
General Electric MTN
6.875%, 01/10/2039		1,546		2,185
6.750%, 03/15/2032		190		259
5.875%, 01/14/2038		1,221		1,582
3.450%, 05/15/2024		140		152
3.100%, 01/09/2023		233		245
0.701%, VAR ICE LIBOR USD 3 Month+0.480%, 08/15/2036		3,035		2,116
Honeywell International
1.950%, 06/01/2030		2,035		2,153
1.350%, 06/01/2025		510		526
IHS Markit
5.000%, 11/01/2022 (C)		2,000		2,145
4.750%, 02/15/2025 (C)		1,000		1,149

  124   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.750%, 08/01/2028	$	1,000	$	1,208
ILFC E-Capital Trust II
3.230%, 12/21/2065 (B) (C)		1,200		746
JetBlue Pass-Through Trust, Ser 2019-1, Cl AA
2.750%, 05/15/2032		159		159
John Deere Capital MTN
2.150%, 09/08/2022		145		150
1.750%, 03/09/2027		942		992
1.200%, 04/06/2023		1,571		1,605
0.550%, 07/05/2022		2,040		2,050
L3Harris Technologies
5.054%, 04/27/2045		480		665
4.950%, 02/15/2021		537		538
4.854%, 04/27/2035		210		277
Lockheed Martin
3.550%, 01/15/2026		1,440		1,631
3.100%, 01/15/2023		110		116
Northrop Grumman
5.250%, 05/01/2050		3,645		5,500
5.150%, 05/01/2040		1,038		1,447
4.030%, 10/15/2047		1,486		1,888
3.850%, 04/15/2045		350		428
3.250%, 08/01/2023		1,944		2,098
3.250%, 01/15/2028		1,683		1,899
2.930%, 01/15/2025		2,114		2,296
2.550%, 10/15/2022		3,249		3,377
Otis Worldwide
3.112%, 02/15/2040		1,185		1,299
2.565%, 02/15/2030		660		709
2.056%, 04/05/2025		340		358
Parker-Hannifin
2.700%, 06/14/2024		830		890
Penske Truck Leasing/PTL Finance
3.950%, 03/10/2025 (C)		225		251
Raytheon Technologies
5.400%, 05/01/2035		640		880
4.500%, 06/01/2042		560		741
4.450%, 11/16/2038		895		1,149
4.125%, 11/16/2028		480		573
3.950%, 08/16/2025		1,761		2,013
3.650%, 08/16/2023		136		147
3.150%, 12/15/2024 (C)		320		345
3.125%, 07/01/2050		1,290		1,454
2.250%, 07/01/2030		680		720
Republic Services
4.750%, 05/15/2023		215		235
2.500%, 08/15/2024		2,035		2,169
1.750%, 02/15/2032		1,427		1,438
1.450%, 02/15/2031		3,670		3,612
Roper Technologies
1.000%, 09/15/2025		940		946

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Southwest Airlines
5.125%, 06/15/2027	$	2,140	$	2,490
4.750%, 05/04/2023		1,426		1,547
Union Pacific
3.950%, 09/10/2028		1,555		1,842
3.839%, 03/20/2060		1,460		1,799
3.750%, 07/15/2025		530		599
3.750%, 02/05/2070		912		1,088
3.250%, 02/05/2050		4,212		4,834
3.150%, 03/01/2024		566		611
2.973%, 09/16/2062 (C)		175		186
2.950%, 03/01/2022		1,182		1,221
2.400%, 02/05/2030		1,306		1,415
2.150%, 02/05/2027		1,325		1,406
United Parcel Service
5.300%, 04/01/2050		870		1,338
5.200%, 04/01/2040		525		752
2.350%, 05/16/2022		235		241
US Airways Pass-Through Trust, Ser 2012-1, Cl A
5.900%, 10/01/2024		28		27
US Airways Pass-Through Trust, Ser 2012-2, Cl A
4.625%, 06/03/2025		2,942		2,452
Waste Management 4.150%, 07/15/2049		440		583
3.900%, 03/01/2035		39		48
3.500%, 05/15/2024		845		921
2.500%, 11/15/2050		340		344
				206,821
Information Technology — 2.0%
Adobe
2.300%, 02/01/2030		2,210		2,402
Apple
4.650%, 02/23/2046		2,460		3,550
4.375%, 05/13/2045		820		1,138
4.250%, 02/09/2047		481		662
3.850%, 05/04/2043		375		483
3.450%, 05/06/2024		350		385
2.750%, 01/13/2025		675		731
2.650%, 05/11/2050		1,643		1,764
2.550%, 08/20/2060		1,565		1,616
2.450%, 08/04/2026		2,560		2,787
2.400%, 05/03/2023		95		100
2.150%, 02/09/2022		90		92
1.125%, 05/11/2025		1,720		1,757
Applied Materials
1.750%, 06/01/2030		2,030		2,114
Avnet
4.875%, 12/01/2022		1,570		1,688

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   125

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Broadcom
4.700%, 04/15/2025	$	3,350	$	3,835
4.250%, 04/15/2026		1,144		1,307
4.150%, 11/15/2030		3,630		4,216
3.875%, 01/15/2027		1,616		1,815
3.150%, 11/15/2025		7,798		8,473
3.125%, 10/15/2022		1,000		1,047
2.250%, 11/15/2023		1,110		1,159
Corning
5.450%, 11/15/2079		1,685		2,316
Dell International LLC / EMC
6.100%, 07/15/2027 (C)		679		835
5.300%, 10/01/2029 (C)		682		824
4.900%, 10/01/2026 (C)		339		398
Fiserv
3.500%, 07/01/2029		330		378
3.200%, 07/01/2026		1,144		1,283
Flex
4.875%, 05/12/2030		1,783		2,121
Hewlett Packard Enterprise
4.650%, 10/01/2024		3,955		4,486
HP
2.200%, 06/17/2025		2,142		2,264
Intel
4.950%, 03/25/2060		20		30
4.750%, 03/25/2050		5,100		7,215
4.600%, 03/25/2040		817		1,099
4.100%, 05/19/2046		885		1,145
3.734%, 12/08/2047		119		146
3.300%, 10/01/2021		75		77
3.250%, 11/15/2049		1,510		1,740
3.100%, 07/29/2022		75		78
International Business Machines
4.150%, 05/15/2039		167		214
3.300%, 05/15/2026		387		437
3.000%, 05/15/2024		2,340		2,534
KLA
3.300%, 03/01/2050		908		1,021
Lam Research
3.800%, 03/15/2025		150		168
Marvell Technology Group
4.200%, 06/22/2023		1,800		1,946
Mastercard
3.850%, 03/26/2050		2,850		3,723
3.375%, 04/01/2024		720		791
3.350%, 03/26/2030		1,340		1,574
Micron Technology
2.497%, 04/24/2023		2,766		2,886
Microsoft
4.100%, 02/06/2037		917		1,205
3.950%, 08/08/2056		281		387
3.700%, 08/08/2046		620		798

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.500%, 02/12/2035	$	460	$	573
3.450%, 08/08/2036		1,648		2,041
3.300%, 02/06/2027		1,570		1,793
2.875%, 02/06/2024		970		1,041
2.700%, 02/12/2025		360		391
2.675%, 06/01/2060		835		918
2.525%, 06/01/2050		240		258
2.400%, 08/08/2026		2,510		2,737
2.375%, 02/12/2022		50		51
2.375%, 05/01/2023		50		52
NVIDIA
3.700%, 04/01/2060		680		877
3.500%, 04/01/2040		990		1,201
3.500%, 04/01/2050		5,362		6,530
2.850%, 04/01/2030		3,516		3,940
NXP BV/ NXP Funding LLC/ NXP USA
4.300%, 06/18/2029 (C)		892		1,048
3.875%, 06/18/2026 (C)		2,717		3,078
3.150%, 05/01/2027 (C)		1,149		1,254
2.700%, 05/01/2025 (C)		430		462
Oracle
4.300%, 07/08/2034		285		364
4.000%, 11/15/2047		1,025		1,255
3.900%, 05/15/2035		3,620		4,449
3.850%, 04/01/2060		1,124		1,387
3.800%, 11/15/2037		481		576
3.600%, 04/01/2040		1,815		2,115
2.950%, 11/15/2024		1,147		1,245
2.950%, 05/15/2025		695		759
2.950%, 04/01/2030		1,815		2,035
2.800%, 04/01/2027		2,037		2,243
2.625%, 02/15/2023		884		925
PayPal Holdings
2.300%, 06/01/2030		5,500		5,909
1.650%, 06/01/2025		3,217		3,345
1.350%, 06/01/2023		2,461		2,522
QUALCOMM
1.650%, 05/20/2032 (C)		119		120
1.300%, 05/20/2028 (C)		1,795		1,802
salesforce.com
3.250%, 04/11/2023		740		789
Texas Instruments
4.150%, 05/15/2048		1,250		1,725
1.750%, 05/04/2030		440		454
1.375%, 03/12/2025		844		872
TSMC Global
1.375%, 09/28/2030 (C)		4,320		4,224
1.000%, 09/28/2027 (C)		630		625
0.750%, 09/28/2025 (C)		480		477
Visa
4.300%, 12/14/2045		810		1,117
3.150%, 12/14/2025		660		737

  126   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
2.200%, 12/14/2020	$	480	$	480
1.900%, 04/15/2027		1,580		1,672
				159,708
Materials — 0.8%
Air Liquide Finance
2.250%, 09/27/2023 (C)		1,215		1,271
Amcor Finance USA
4.500%, 05/15/2028		865		1,026
3.625%, 04/28/2026		2,000		2,236
Anglo American Capital
4.000%, 09/11/2027 (C)		280		316
3.625%, 09/11/2024 (C)		1,810		1,968
ArcelorMittal
3.600%, 07/16/2024		1,540		1,638
Barrick Gold
5.250%, 04/01/2042		740		1,027
Barrick North America Finance LLC
5.700%, 05/30/2041		883		1,272
BHP Billiton Finance USA
5.000%, 09/30/2043		40		58
2.875%, 02/24/2022		79		81
Dow Chemical
4.800%, 05/15/2049		925		1,204
4.375%, 11/15/2042		341		417
3.600%, 11/15/2050		723		805
2.100%, 11/15/2030		2,044		2,093
DuPont de Nemours Inc
4.493%, 11/15/2025		3,605		4,212
Equate Petrochemical MTN
4.250%, 11/03/2026 (C)		1,640		1,788
Glencore Funding LLC
4.125%, 05/30/2023 (C)		50		54
4.125%, 03/12/2024 (C)		70		76
4.000%, 03/27/2027 (C)		1,610		1,804
Industrias Penoles
4.150%, 09/12/2029 (C)		1,830		2,045
International Flavors & Fragrances
5.000%, 09/26/2048 (D)		2,365		3,156
LYB International Finance III LLC
3.625%, 04/01/2051		626		677
3.375%, 10/01/2040		445		469
2.250%, 10/01/2030		342		349
1.250%, 10/01/2025		797		805
Nacional del Cobre de Chile
4.250%, 07/17/2042 (C)		1,790		2,071
3.625%, 08/01/2027 (C)		2,770		3,073
Newcrest Finance Pty
3.250%, 05/13/2030 (C)		1,140		1,256
Newmont
2.250%, 10/01/2030		4,531		4,752

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Nucor
2.700%, 06/01/2030 (D)	$	912	$	990
2.000%, 06/01/2025		711		747
Nutrien
5.000%, 04/01/2049		1,032		1,432
Nutrition & Biosciences
3.468%, 12/01/2050 (C)		1,980		2,163
2.300%, 11/01/2030 (C)		1,081		1,112
1.230%, 10/01/2025 (C)		6,305		6,385
OCP
4.500%, 10/22/2025 (C)		1,860		2,000
Reliance Steel & Aluminum
2.150%, 08/15/2030		1,459		1,489
1.300%, 08/15/2025		561		567
Southern Copper
5.250%, 11/08/2042		4,400		5,818
Suzano Austria GmbH
6.000%, 01/15/2029		2,540		3,028
Syngenta Finance
3.933%, 04/23/2021 (C)		370		374
Teck Resources
6.250%, 07/15/2041		836		1,040
5.200%, 03/01/2042		522		584
Vale Overseas
6.875%, 11/21/2036		1,595		2,261
6.250%, 08/10/2026		2,140		2,637
WestRock RKT LLC
4.000%, 03/01/2023		330		350
				74,976
Real Estate — 0.9%
Agree
2.900%, 10/01/2030		496		520
American Campus Communities Operating Partnership
3.750%, 04/15/2023		2,255		2,379
American Tower
1.875%, 10/15/2030		3,215		3,247
AvalonBay Communities MTN
4.350%, 04/15/2048		235		302
2.450%, 01/15/2031		2,490		2,664
Boston Properties
3.800%, 02/01/2024		2,000		2,174
3.400%, 06/21/2029		1,510		1,665
2.900%, 03/15/2030		125		133
Camden Property Trust
2.800%, 05/15/2030		925		1,017
CC Holdings GS V LLC
3.849%, 04/15/2023		580		623
Crown Castle International
4.000%, 03/01/2027		332		379
3.300%, 07/01/2030		569		636

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   127

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
CyrusOne/CyrusOne Finance
2.900%, 11/15/2024	$	1,985	$	2,113
Equinix
2.950%, 09/15/2051		1,620		1,672
2.900%, 11/18/2026		1,878		2,048
2.625%, 11/18/2024		900		959
ERP Operating
4.625%, 12/15/2021		200		207
Federal Realty Investment Trust
3.950%, 01/15/2024		1,058		1,150
GLP Capital/GLP Financing II
5.750%, 06/01/2028		1,250		1,459
5.375%, 04/15/2026		1,555		1,758
5.300%, 01/15/2029		2,449		2,811
5.250%, 06/01/2025		1,250		1,384
4.000%, 01/15/2030		1,212		1,299
4.000%, 01/15/2031		330		357
Healthcare Trust of America Holdings
3.500%, 08/01/2026		1,010		1,139
Healthpeak Properties
3.875%, 08/15/2024		4,926		5,454
2.875%, 01/15/2031		470		504
Highwoods Realty
2.600%, 02/01/2031		590		595
Kimco Realty
1.900%, 03/01/2028		709		713
Life Storage
3.875%, 12/15/2027		935		1,057
Mid-America Apartments
4.300%, 10/15/2023		685		748
4.000%, 11/15/2025		818		925
3.950%, 03/15/2029		670		784
3.750%, 06/15/2024		1,563		1,694
3.600%, 06/01/2027		99		112
1.700%, 02/15/2031		628		624
Piedmont Operating Partnership
4.450%, 03/15/2024		125		133
Prologis
3.000%, 04/15/2050		255		283
Realty Income
3.250%, 01/15/2031		1,524		1,722
Regency Centers
2.950%, 09/15/2029		1,453		1,525
Sabra Health Care
3.900%, 10/15/2029		1,335		1,382
Simon Property Group
3.800%, 07/15/2050		1,540		1,660
2.450%, 09/13/2029		1,915		1,959
2.000%, 09/13/2024		750		779
SL Green Realty
4.500%, 12/01/2022		500		525

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Spirit Realty
4.450%, 09/15/2026	$	81	$	91
4.000%, 07/15/2029		386		428
3.400%, 01/15/2030		805		856
3.200%, 02/15/2031		1,582		1,655
STORE Capital
4.625%, 03/15/2029		852		974
4.500%, 03/15/2028		2,514		2,827
2.750%, 11/18/2030		1,180		1,192
Ventas Realty
3.000%, 01/15/2030		1,500		1,596
VEREIT Operating Partnership
3.400%, 01/15/2028		709		768
2.850%, 12/15/2032		500		512
2.200%, 06/15/2028		714		719
Welltower
4.500%, 01/15/2024		183		202
				69,093
Utilities — 2.2%
AES
1.375%, 01/15/2026 (C)		1,438		1,450
Alabama Power
3.700%, 12/01/2047		2,745		3,363
Alabama Power Capital Trust V
3.325%, VAR ICE LIBOR USD 3 Month+3.100%, 10/01/2042		100		100
Appalachian Power
4.500%, 03/01/2049		60		77
4.450%, 06/01/2045		1,600		2,048
Berkshire Hathaway Energy
2.850%, 05/15/2051 (C)		2,430		2,560
Black Hills
3.875%, 10/15/2049		600		688
3.050%, 10/15/2029		818		894
Boston Gas
4.487%, 02/15/2042 (C)		140		178
CenterPoint Energy
3.600%, 11/01/2021		1,095		1,127
2.950%, 03/01/2030		569		623
2.500%, 09/01/2022		135		140
2.500%, 09/01/2024		1,455		1,545
CenterPoint Energy Houston Electric LLC
2.900%, 07/01/2050		461		502
CenterPoint Energy Resources
4.100%, 09/01/2047		653		800
Comision Federal de Electricidad
4.875%, 01/15/2024 (C)		300		330
4.750%, 02/23/2027 (C)		1,410		1,588
Commonwealth Edison
3.400%, 09/01/2021		140		142

  128   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Consolidated Edison of New York
4.650%, 12/01/2048	$	2,000	$	2,699
4.450%, 03/15/2044		2,375		3,032
3.950%, 04/01/2050		210		261
3.350%, 04/01/2030		260		300
Consumers Energy
2.500%, 05/01/2060		565		570
Delmarva Power & Light
3.500%, 11/15/2023		170		184
Dominion Energy
3.071%, 08/15/2024		1,800		1,947
2.000%, 08/15/2021		940		949
DTE Electric
2.950%, 03/01/2050		1,476		1,648
DTE Energy
3.800%, 03/15/2027		1,346		1,535
2.950%, 03/01/2030		895		979
2.529%, 10/01/2024		1,955		2,081
1.050%, 06/01/2025		4,591		4,633
Duke Energy
3.550%, 09/15/2021		952		968
3.150%, 08/15/2027		850		948
2.400%, 08/15/2022		1,380		1,424
1.800%, 09/01/2021		1,408		1,421
0.900%, 09/15/2025		1,955		1,964
Duke Energy Carolinas LLC
4.250%, 12/15/2041		1,000		1,274
4.000%, 09/30/2042		1,512		1,863
Duke Energy Florida LLC
3.850%, 11/15/2042		720		859
3.200%, 01/15/2027		1,600		1,799
Duke Energy Indiana LLC
2.750%, 04/01/2050		605		644
Duke Energy Progress LLC
4.150%, 12/01/2044		250		318
2.800%, 05/15/2022		215		222
2.500%, 08/15/2050		815		825
Enel Finance International
4.625%, 09/14/2025 (C)		2,420		2,824
Entergy Arkansas LLC
2.650%, 06/15/2051		2,677		2,785
Entergy Texas
3.450%, 12/01/2027		1,625		1,780
1.750%, 03/15/2031		902		905
Evergy
5.292%, 06/15/2022		1,216		1,289
2.900%, 09/15/2029		887		964
2.450%, 09/15/2024		1,248		1,321
Evergy Kansas Central
3.450%, 04/15/2050		1,452		1,702
Evergy Metro
5.300%, 10/01/2041		250		339

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
2.250%, 06/01/2030	$	871	$	926
Evergy Missouri West
8.270%, 11/15/2021		2,894		3,091
Eversource Energy
2.900%, 10/01/2024		3,730		4,027
Exelon
5.625%, 06/15/2035		1,720		2,340
4.700%, 04/15/2050		1,291		1,747
3.950%, 06/15/2025		1,395		1,579
FEL Energy VI Sarl
5.750%, 12/01/2040 (C)		694		730
FirstEnergy
7.375%, 11/15/2031		4,905		6,741
4.250%, 03/15/2023		2,040		2,155
3.900%, 07/15/2027		1,310		1,447
1.600%, 01/15/2026		300		293
Florida Power & Light
3.950%, 03/01/2048		120		159
3.250%, 06/01/2024		455		491
Interstate Power & Light
3.500%, 09/30/2049		511		576
ITC Holdings
4.050%, 07/01/2023		2,075		2,231
2.700%, 11/15/2022		1,345		1,399
KeySpan Gas East
2.742%, 08/15/2026 (C)		1,175		1,290
Metropolitan Edison
4.300%, 01/15/2029 (C)		1,493		1,711
4.000%, 04/15/2025 (C)		1,000		1,088
3.500%, 03/15/2023 (C)		5,050		5,268
MidAmerican Energy
4.800%, 09/15/2043		1,500		2,037
3.650%, 04/15/2029		1,330		1,592
3.650%, 08/01/2048		709		870
Mississippi Power
4.250%, 03/15/2042		985		1,204
3.950%, 03/30/2028		1,640		1,892
Monongahela Power
5.400%, 12/15/2043 (C)		2,000		2,767
NextEra Energy Capital Holdings
2.750%, 05/01/2025		1,148		1,244
2.403%, 09/01/2021		70		71
2.250%, 06/01/2030		1,088		1,139
NiSource 5.800%, 02/01/2042		471		660
NRG Energy
2.000%, 12/02/2025 (C)		925		939
Oncor Electric Delivery LLC
2.750%, 05/15/2030		1,950		2,179
Pacific Gas and Electric
4.550%, 07/01/2030		1,489		1,700
4.500%, 07/01/2040		339		381

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   129

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.950%, 12/01/2047	$	1,092	$	1,143
3.500%, 08/01/2050		220		222
3.300%, 12/01/2027		2,422		2,571
3.300%, 08/01/2040		538		541
3.150%, 01/01/2026		287		303
2.500%, 02/01/2031		4,639		4,666
2.100%, 08/01/2027		3,614		3,634
1.750%, 06/16/2022		4,600		4,607
PECO Energy
4.150%, 10/01/2044		1,985		2,552
Pennsylvania Electric
3.250%, 03/15/2028 (C)		565		610
Perusahaan Listrik Negara MTN
6.150%, 05/21/2048 (C)		2,090		2,775
5.450%, 05/21/2028 (C)		1,030		1,236
4.125%, 05/15/2027 (C)		1,990		2,201
PPL Capital Funding
5.000%, 03/15/2044		543		710
4.125%, 04/15/2030		1,735		2,050
3.400%, 06/01/2023		192		204
3.100%, 05/15/2026		1,623		1,804
Progress Energy
6.000%, 12/01/2039		200		284
Public Service Electric and Gas MTN
3.700%, 05/01/2028		3,090		3,611
2.700%, 05/01/2050		1,483		1,577
2.050%, 08/01/2050		272		253
Public Service of New Hampshire
3.500%, 11/01/2023		960		1,038
Sempra Energy
2.900%, 02/01/2023		1,240		1,300
Southern California Edison
4.650%, 10/01/2043		320		399
4.125%, 03/01/2048		749		915
2.850%, 08/01/2029		679		735
Southern California Gas
2.550%, 02/01/2030		1,840		1,985
Southern Gas Capital
5.875%, 03/15/2041		430		611
3.250%, 06/15/2026		1,550		1,720
1.750%, 01/15/2031		1,362		1,374
Southwestern Electric Power
2.750%, 10/01/2026		1,000		1,080
Southwestern Public Service
3.750%, 06/15/2049		2,000		2,395
Trans-Allegheny Interstate Line
3.850%, 06/01/2025 (C)		468		510
Virginia Electric & Power
4.650%, 08/15/2043		1,205		1,649
3.450%, 02/15/2024		150		162
2.950%, 01/15/2022		1,720		1,759

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Vistra Operations LLC
4.300%, 07/15/2029 (C)	$	2,725	$	3,041
WEC Energy Group
1.375%, 10/15/2027		1,494		1,503
				185,105
Total Corporate Obligations (Cost $2,388,891) ($ Thousands)				2,624,926
U.S. TREASURY OBLIGATIONS — 27.6%
U.S. Treasury Bills
0.180%, 12/03/2020 (B)		16,360		16,360
0.175%, 12/10/2020 (B)		9,160		9,160
0.110%, 04/29/2021 (B)		26,400		26,390
0.101%, 04/01/2021 (B)		11,370		11,366
0.100%, 01/05/2021 (B)		3,710		3,710
0.098%, 01/21/2021 (B)		33,975		33,971
0.097%, 03/18/2021 (B)		1,180		1,180
0.095%, 01/28/2021 (B)		1,345		1,345
0.090%, 02/18/2021 (B)		21,190		21,186
0.090%, 05/04/2021 (B)		25,670		25,660
0.087%, 12/15/2020 (B)		9,750		9,750
0.083%, 12/08/2020 (B)		103,280		103,279
0.072%, 01/19/2021 (B)		10,935		10,934
0.061%, 01/07/2021 (B)		7,120		7,119
0.060%, 12/17/2020 (B)		13,910		13,909
0.059%, 12/22/2020 (B)		8,525		8,525
U.S. Treasury Bonds
2.875%, 05/15/2043		17,966		23,029
2.500%, 02/15/2045		5,172		6,252
2.000%, 02/15/2050		7,650		8,442
1.625%, 11/15/2050		118,730		120,270
1.375%, 11/15/2040		60,952		61,066
1.375%, 08/15/2050		89,185		84,921
1.250%, 05/15/2050		142,258		131,255
1.125%, 05/15/2040		50,637		48,730
1.125%, 08/15/2040		39,185		37,605
U.S. Treasury Inflation-Protected Securities
2.125%, 02/15/2040		3,203		4,934
2.125%, 02/15/2041		1,545		2,407
1.375%, 02/15/2044		4,255		6,097
1.000%, 02/15/2046		3,691		5,006
1.000%, 02/15/2048		8,834		12,240
1.000%, 02/15/2049		6,454		9,045
0.750%, 02/15/2042		2,442		3,089
0.750%, 02/15/2045		1,868		2,395
0.250%, 02/15/2050		3,895		4,618
0.125%, 07/15/2030		9,242		10,237
U.S. Treasury Notes
3.125%, 05/15/2021		9,121		9,248
2.250%, 04/30/2021		9,759		9,847

  130   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
U.S. TREASURY OBLIGATIONS (continued)
2.125%, 05/15/2022	$	908	$	934
1.375%, 01/31/2021		32,740		32,807
1.375%, 05/31/2021		37,156		37,397
0.875%, 11/15/2030		108,324		108,680
0.625%, 11/30/2027		71,540		71,607
0.500%, 06/30/2027		17,260		17,186
0.500%, 08/31/2027		13,830		13,752
0.500%, 10/31/2027		11,252		11,169
0.375%, 11/30/2025		195,923		196,076
0.250%, 06/15/2023		6,483		6,496
0.250%, 11/15/2023		79,626		79,782
0.250%, 05/31/2025		40		40
0.250%, 06/30/2025		480		478
0.250%, 08/31/2025		8,719		8,683
0.250%, 09/30/2025		12,381		12,323
0.250%, 10/31/2025		171,280		170,424
0.125%, 05/31/2022		6,424		6,423
0.125%, 06/30/2022		7,705		7,704
0.125%, 07/31/2022		13,977		13,973
0.125%, 08/31/2022		50,732		50,718
0.125%, 09/30/2022		253,150		253,071
0.125%, 10/31/2022		100,666		100,627
0.125%, 11/30/2022		86,433		86,392
0.125%, 09/15/2023		36,488		36,434
0.125%, 10/15/2023		29,482		29,434
Total U.S. Treasury Obligations (Cost $2,249,014) ($ Thousands)				2,257,187
ASSET-BACKED SECURITIES — 8.1%
Automotive — 1.4%
Ally Auto Receivables Trust, Ser 2018-1, Cl A3
2.350%, 06/15/2022		173		173
Ally Auto Receivables Trust, Ser 2019-3, Cl A4
1.960%, 12/16/2024		1,440		1,488
Ally Auto Receivables Trust, Ser 2019-4, Cl A3
1.840%, 06/17/2024		420		427
AmeriCredit Automobile Receivables Trust, Ser 2020-1, Cl A2A
1.100%, 03/20/2023		327		328
AmeriCredit Automobile Receivables Trust, Ser 2020-2, Cl A2A
0.600%, 12/18/2023		3,349		3,355
AmeriCredit Automobile Receivables Trust, Ser 2020-3, Cl A2
0.420%, 03/18/2024		2,140		2,141
AmeriCredit Automobile Receivables Trust, Ser 2020-3, Cl A3
0.530%, 06/18/2025		1,909		1,912

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Avis Budget Rental Car Funding AESOP LLC, Ser 2017-1A, Cl A
3.070%, 09/20/2023 (C)	$	610	$	626
Avis Budget Rental Car Funding AESOP LLC, Ser 2019-3A, Cl A
2.360%, 03/20/2026 (C)		1,317		1,356
Avis Budget Rental Car Funding AESOP LLC, Ser 2020-1A, Cl A
2.330%, 08/20/2026 (C)		3,290		3,380
Avis Budget Rental Car Funding AESOP LLC, Ser 2020-2A, Cl A
2.020%, 02/20/2027 (C)		6,745		6,836
Bank of The West Auto Trust, Ser 2019-1, Cl A2
2.400%, 10/17/2022 (C)		346		347
Chase Auto Credit Linked Notes, Ser 2020-2, Cl B
0.840%, 02/25/2028 (C)		2,010		2,011
Chesapeake Funding II LLC, Ser 2017-4A, Cl A1
2.120%, 11/15/2029 (C)		709		713
Chesapeake Funding II LLC, Ser 2018-1A, Cl B
3.450%, 04/15/2030 (C)		2,380		2,443
Chesapeake Funding II LLC, Ser 2019-1A, Cl A1
2.940%, 04/15/2031 (C)		1,741		1,775
Chesapeake Funding II LLC, Ser 2020-1A, Cl A1
0.870%, 08/16/2032 (C)		4,347		4,355
Chesapeake Funding II LLC, Ser 2020-1A, Cl B
1.240%, 08/16/2032 (C)		1,830		1,839
Drive Auto Receivables Trust, Ser 2019-3, Cl A3
2.490%, 06/15/2023		1,598		1,604
Drive Auto Receivables Trust, Ser 2020-1, Cl A2
1.990%, 12/15/2022		556		558
Drive Auto Receivables Trust, Ser 2020-2, Cl A2A
0.850%, 07/17/2023		773		775
Enterprise Fleet Financing LLC, Ser 2019-1, Cl A2
2.980%, 10/20/2024 (C)		633		644
Exeter Automobile Receivables Trust, Ser 2019-4A, Cl A
2.180%, 01/17/2023 (C)		325		326
Exeter Automobile Receivables Trust, Ser 2020-2A, Cl A
1.130%, 08/15/2023 (C)		2,776		2,783
Ford Credit Auto Lease Trust, Ser 2020-B, Cl A3
0.620%, 08/15/2023		3,832		3,847

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   131

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Ford Credit Auto Owner Trust, Ser 2017-B, Cl A4
1.870%, 09/15/2022	$	423	$	425
Ford Credit Auto Owner Trust, Ser 2018-1, Cl A
3.190%, 07/15/2031 (C)		5,715		6,266
Ford Credit Auto Owner Trust, Ser 2018-2, Cl A
3.470%, 01/15/2030 (C)		3,776		4,055
Ford Credit Auto Owner Trust, Ser 2018-A, Cl A3
3.030%, 11/15/2022		250		252
Ford Credit Auto Owner Trust, Ser 2019-REV1, Cl A
3.520%, 07/15/2030 (C)		4,099		4,472
Ford Credit Auto Owner Trust, Ser 2020-2, Cl A
1.060%, 04/15/2033 (C)		5,112		5,138
Ford Credit Auto Owner Trust, Ser 2020-A, Cl A3
1.040%, 08/15/2024		1,757		1,777
Ford Credit Auto Owner Trust, Ser 2020-C, Cl A3
0.410%, 07/15/2025		1,873		1,875
Ford Credit Auto Owner Trust, Ser 2020-C, Cl A4
0.510%, 08/15/2026		1,341		1,346
Ford Credit Auto Owner Trust, Ser 2020-REV1, Cl A
2.040%, 08/15/2031 (C)		4,882		5,132
Ford Credit Floorplan Master Owner Trust A, Ser 2018-4, Cl A
4.060%, 11/15/2030		2,740		3,232
GM Financial Automobile Leasing Trust, Ser 2020-2, Cl A2A
0.710%, 10/20/2022		233		234
GM Financial Automobile Leasing Trust, Ser 2020-2, Cl A4
1.010%, 07/22/2024		392		397
GM Financial Consumer Automobile Receivables Trust, Ser 2020-1, Cl A2
1.830%, 01/17/2023		445		448
Hertz Fleet Lease Funding, Ser 2019-1, Cl D
3.440%, 01/10/2033 (C)		2,900		2,782
Honda Auto Receivables Owner Trust, Ser 2019-3, Cl A4
1.850%, 08/15/2025		1,160		1,195
Hyundai Auto Receivables Trust, Ser 2019-B, Cl A3
1.940%, 02/15/2024		370		377
Hyundai Auto Receivables Trust, Ser 2020-A, Cl A1
1.198%, 05/17/2021		31		31

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Hyundai Auto Receivables Trust, Ser 2020-B, Cl A2
0.380%, 03/15/2023	$	2,725	$	2,727
JPMorgan Chase Bank, Ser 2020-1, Cl B
0.991%, 01/25/2028 (C)		1,225		1,228
Prestige Auto Receivables Trust, Ser 2018-1A, Cl A3
3.290%, 09/15/2022 (C)		77		77
Prestige Auto Receivables Trust, Ser 2020-1A, Cl A2
0.520%, 02/15/2024 (C)		1,255		1,255
Santander Drive Auto Receivables Trust, Ser 2020-1, Cl A3
2.030%, 02/15/2024		765		776
Santander Drive Auto Receivables Trust, Ser 2020-2, Cl A2A
0.620%, 05/15/2023		4,652		4,656
Santander Drive Auto Receivables Trust, Ser 2020-3, Cl A2
0.460%, 09/15/2023		3,280		3,280
Santander Drive Auto Receivables Trust, Ser 2020-3, Cl A3
0.520%, 07/15/2024		1,411		1,414
Santander Drive Auto Receivables Trust, Ser 2020-4, Cl A2
0.420%, 09/15/2023		1,260		1,260
Santander Drive Auto Receivables Trust, Ser 2020-4, Cl A3
0.480%, 07/15/2024		1,310		1,311
Santander Revolving Auto Loan Trust, Ser 2019-A, Cl A
2.510%, 01/26/2032 (C)		4,109		4,373
Tesla Auto Lease Trust, Ser 2020-A, Cl A2
0.550%, 05/22/2023 (C)		2,825		2,830
Tidewater Auto Receivables Trust, Ser 2020-AA, Cl A2
1.390%, 08/15/2024 (C)		898		904
Toyota Auto Receivables Owner Trust, Ser 2019-D, Cl A2
1.920%, 07/15/2022		276		277
Toyota Auto Receivables Owner Trust, Ser 2019-D, Cl A3
1.920%, 01/16/2024		530		541
Toyota Auto Receivables Owner Trust, Ser 2020-A, Cl A2
1.670%, 11/15/2022		297		299
Wheels SPV 2 LLC, Ser 2020-1A, Cl A2
0.510%, 08/20/2029 (C)		2,460		2,463
				115,147

  132   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Credit Cards — 0.3%
Capital One Multi-Asset Execution Trust, Ser 2016-A2, Cl A2
0.771%, VAR ICE LIBOR USD 1 Month+0.630%, 02/15/2024	$	2,927	$	2,933
Capital One Multi-Asset Execution Trust, Ser 2016-A7, Cl A7
0.651%, VAR ICE LIBOR USD 1 Month+0.510%, 09/16/2024		1,758		1,766
Capital One Multi-Asset Execution Trust, Ser 2017-A5, Cl A5
0.721%, VAR ICE LIBOR USD 1 Month+0.580%, 07/15/2027		1,070		1,074
Citibank Credit Card Issuance Trust, Ser 2017-A5, Cl A5
0.766%, VAR ICE LIBOR USD 1 Month+0.620%, 04/22/2026		3,325		3,354
Citibank Credit Card Issuance Trust, Ser 2017-A6, Cl A6
0.911%, VAR ICE LIBOR USD 1 Month+0.770%, 05/14/2029		7,790		7,771
Discover Card Execution Note Trust, Ser 2017-A5, Cl A5
0.741%, VAR ICE LIBOR USD 1 Month+0.600%, 12/15/2026		2,895		2,909
Discover Card Execution Note Trust, Ser 2018-A2, Cl A2
0.471%, VAR ICE LIBOR USD 1 Month+0.330%, 08/15/2025		5,360		5,367
				25,174
Mortgage Related Securities — 0.3%
Aames Mortgage Trust, Ser 2002-1, Cl A3
7.396%, 06/25/2032		24		24
ABFC Trust, Ser 2005-AQ1, Cl A4
4.622%, 01/25/2034		47		47
Accredited Mortgage Loan Trust, Ser 2005-3, Cl M3
0.630%, VAR ICE LIBOR USD 1 Month+0.480%, 09/25/2035		7,222		7,116
Centex Home Equity Loan Trust, Ser 2005-A, Cl M1
0.870%, VAR ICE LIBOR USD 1 Month+0.720%, 01/25/2035		3,832		3,773
Centex Home Equity Loan Trust, Ser 2006-A, Cl AV4
0.400%, VAR ICE LIBOR USD 1 Month+0.250%, 06/25/2036		4		4
Delta Funding Home Equity Loan Trust, Ser 1999-3, Cl A1A
0.961%, VAR ICE LIBOR USD 1 Month+0.820%, 09/15/2029		210		205

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
GSAMP Trust, Ser 2006-HE2, Cl A3
0.669%, VAR ICE LIBOR USD 1 Month+0.260%, 03/25/2046	$	628	$	628
Master Asset-Backed Securities Trust, Ser 2006-WMC3, Cl A4
0.310%, VAR ICE LIBOR USD 1 Month+0.160%, 08/25/2036		795		369
Morgan Stanley Asset-Backed Securities Capital I Trust, Ser 2005-WMC3, Cl M4
1.080%, VAR ICE LIBOR USD 1 Month+0.930%, 03/25/2035		1,262		1,289
Morgan Stanley Mortgage Loan Trust, Ser 2007-3XS, Cl 2A3S
5.858%, 01/25/2047		15		8
RASC Trust, Ser 2005-KS9, Cl M5
1.095%, VAR ICE LIBOR USD 1 Month+0.945%, 10/25/2035		8,000		7,877
Soundview Home Loan Trust, Ser 2006-OPT3, Cl 2A3
0.320%, VAR ICE LIBOR USD 1 Month+0.170%, 06/25/2036		557		551
Structured Asset Securities Pass-Through Certificates, Ser 2002-AL1, Cl A2
3.450%, 02/25/2032		47		45
Wells Fargo Home Equity Asset-Backed Securities Trust, Ser 2004-2, Cl A33
1.150%, VAR ICE LIBOR USD 1 Month+1.000%, 10/25/2034		3,403		3,343
				25,279
Non-Agency Mortgage-Backed Obligations — 0.0%
Citicorp Residential Mortgage Trust, Ser 2007-1, Cl A5
5.165%, 03/25/2037		906		935
Other Asset-Backed Securities — 6.1%
AccessLex Institute, Ser 2007-A, Cl A3
0.507%, VAR ICE LIBOR USD 3 Month+0.300%, 05/25/2036		3,089		2,994
ACIS CLO, Ser 2014-4A, Cl A
1.634%, VAR ICE LIBOR USD 3 Month+1.420%, 05/01/2026 (C)		10		10
ACIS CLO, Ser 2015-6A, Cl A1
1.804%, VAR ICE LIBOR USD 3 Month+1.590%, 05/01/2027 (C)		176		176
AGL Core CLO VIII, Ser 2020-8A, Cl A1
1.718%, VAR ICE LIBOR USD 3 Month+1.500%, 10/20/2031 (C)		1,110		1,109
Aimco CLO XI, Ser 2020-11A, Cl A1
1.605%, VAR ICE LIBOR USD 3 Month+1.380%, 10/15/2031 (C)		5,500		5,500

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   133

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Allegro CLO V, Ser 2017-1A, Cl A
1.470%, VAR ICE LIBOR USD 3 Month+1.240%, 10/16/2030 (C)	$	3,100	$	3,093
American Tower Trust I, Ser 2013-13, Cl 2A
3.070%, 03/15/2048 (C)		700		714
AMMC CLO IX, Ser 2019-19A, Cl AR
1.377%, VAR ICE LIBOR USD 3 Month+1.140%, 10/16/2028 (C)		2,400		2,392
AMMC CLO XII, Ser 2017-12A, Cl AR
1.406%, VAR ICE LIBOR USD 3 Month+1.200%, 11/10/2030 (C)		750		747
AMMC CLO XXIII, Ser 2020-23A, Cl A1L
1.635%, VAR ICE LIBOR USD 3 Month+1.400%, 10/17/2031 (C)		640		640
Antares CLO, Ser 2020-1A, Cl A1
2.113%, VAR ICE LIBOR USD 3 Month+1.900%, 10/23/2031 (C)		2,500		2,512
Apex Credit CLO, Ser 2017-1A, Cl A1
1.685%, VAR ICE LIBOR USD 3 Month+1.470%, 04/24/2029 (C)		783		784
Apidos CLO XXI, Ser 2018-21A, Cl A1R
1.148%, VAR ICE LIBOR USD 3 Month+0.930%, 07/18/2027 (C)		1,141		1,139
Applebee’s Funding LLC / IHOP Funding LLC, Ser 2019-1A, Cl A2I
4.194%, 06/07/2049 (C)		2,000		1,954
ARES LII CLO, Ser 2019-52A, Cl B
2.066%, VAR ICE LIBOR USD 3 Month+1.850%, 04/22/2031 (C)		750		751
ARES XLVII CLO, Ser 2018-47A, Cl A1
1.157%, VAR ICE LIBOR USD 3 Month+0.920%, 04/15/2030 (C)		1,040		1,029
Balboa Bay Loan Funding, Ser 2020-1A, Cl A
0.000%, 01/20/2032 (A)(C)(G)		2,610		2,610
Barings CLO, Ser 2017-IA, Cl AR
1.018%, VAR ICE LIBOR USD 3 Month+0.800%, 01/20/2028 (C)		3,579		3,561
BCC Funding XVI LLC, Ser 2019-1A, Cl A2
2.460%, 08/20/2024 (C)		3,411		3,459
BlueMountain CLO, Ser 2016-1A, Cl A1R
1.554%, VAR ICE LIBOR USD 3 Month+1.330%, 04/13/2027 (C)		309		308
BlueMountain CLO, Ser 2018-2A, Cl AR2
1.274%, VAR ICE LIBOR USD 3 Month+1.050%, 11/20/2028 (C)		1,000		994
Brazos Education Loan Authority, Ser 2012-1, Cl A1
0.850%, VAR ICE LIBOR USD 1 Month+0.700%, 12/26/2035		1,466		1,453
Brazos Higher Education Authority, Ser 2010-1, Cl A2
1.407%, VAR ICE LIBOR USD 3 Month+1.200%, 02/25/2035		4,835		4,869

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Brazos Higher Education Authority, Ser 2011-1, Cl A2
1.007%, VAR ICE LIBOR USD 3 Month+0.800%, 02/25/2030	$	502	$	504
Brazos Higher Education Authority, Ser 2011-2, Cl A3
1.215%, VAR ICE LIBOR USD 3 Month+1.000%, 10/27/2036		3,520		3,515
Canyon CLO, Ser 2020-2A, Cl A
1.660%, VAR ICE LIBOR USD 3 Month+1.450%, 10/15/2031 (C)		1,500		1,498
Carlyle Global Market Strategies CLO, Ser 2018-3RA, Cl A1A
1.267%, VAR ICE LIBOR USD 3 Month+1.050%, 07/27/2031 (C)		863		857
Catskill Park CLO, Ser 2017-1A, Cl A2
1.918%, VAR ICE LIBOR USD 3 Month+1.700%, 04/20/2029 (C)		1,500		1,496
CBAM, Ser 2017-1A, Cl A1
1.468%, VAR ICE LIBOR USD 3 Month+1.250%, 07/20/2030 (C)		750		749
Cedar Funding V CLO, Ser 2020-5A, Cl AFRR
1.937%, 07/17/2031 (C)		1,580		1,577
Cerberus Loan Funding XXVIII, Ser 2020-1A, Cl A
2.058%, VAR ICE LIBOR USD 3 Month+1.850%, 10/15/2031 (C)		700		702
Chase Funding Trust, Ser 2003-6, Cl 1A5
4.996%, 11/25/2034		156		164
Chase Funding Trust, Ser 2003-6, Cl 1A7
4.996%, 11/25/2034		155		163
CIT Education Loan Trust, Ser 2007-1, Cl A
0.315%, VAR ICE LIBOR USD 3 Month+0.090%, 03/25/2042 (C)		1,622		1,557
Citicorp Residential Mortgage Trust, Ser 2006-2, Cl A5
5.217%, 09/25/2036		3,141		3,216
College Ave Student Loans LLC, Ser 2018-A, Cl A2
4.130%, 12/26/2047 (C)		659		696
College Ave Student Loans LLC, Ser 2019-A, Cl A2
3.280%, 12/28/2048 (C)		4,928		5,129
College Avenue Student Loans LLC, Ser 2017-A, Cl A1
1.800%, VAR ICE LIBOR USD 1 Month+1.650%, 11/26/2046 (C)		1,002		1,012
Columbia Cent CLO XXIX, Ser 2020-29A, Cl A1N
1.919%, VAR ICE LIBOR USD 3 Month+1.700%, 07/20/2031 (C)		1,030		1,034
COOF Securitization Trust, Ser 2014-1, Cl A, IO
2.801%, 06/25/2040 (A)(C)		241		22

  134   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Countrywide Asset-Backed Certificates Trust, Ser 2004-6, Cl 1A1
0.690%, VAR ICE LIBOR USD 1 Month+0.540%, 12/25/2034	$	2,611	$	2,505
Countrywide Asset-Backed Certificates Trust, Ser 2007-13, Cl 2A1
1.050%, VAR ICE LIBOR USD 1 Month+0.900%, 10/25/2047		304		297
Countrywide Asset-Backed Certificates, Ser 2006-15, Cl A3
4.540%, 10/25/2046 (A)		26		26
Countrywide Asset-Backed Certificates, Ser 2006-SD3, Cl A1
0.810%, VAR ICE LIBOR USD 1 Month+0.660%, 07/25/2036 (C)		68		65
Countrywide Home Equity Loan Revolving Home Equity Loan Trust, Ser 2007-A, Cl A
0.261%, VAR ICE LIBOR USD 1 Month+0.120%, 04/15/2037		2,248		2,143
Countrywide Revolving Home Equity Loan Trust, Ser 2004-K, Cl 2A
0.441%, VAR ICE LIBOR USD 1 Month+0.300%, 02/15/2034		25		25
Credit-Based Asset Servicing & Securitization LLC, Ser 2003-CB3, Cl AF1
3.379%, 12/25/2032		31		32
Credit-Based Asset Servicing & Securitization LLC, Ser 2006-CB2, Cl AF2
3.179%, 12/25/2036		385		378
CSMC Trust, Ser 2017-RPL1, Cl A1
2.750%, 07/25/2057 (A)(C)		7,245		7,604
CVP CLO, Ser 2018-2A, Cl A
1.408%, VAR ICE LIBOR USD 3 Month+1.190%, 01/20/2031 (C)		1,500		1,498
Denali Capital CLO X LLC, Ser 2017-1A, Cl A1LR
1.265%, VAR ICE LIBOR USD 3 Month+1.050%, 10/26/2027 (C)		1,061		1,058
Dryden LXXV CLO, Ser 2019-75A, Cl AR
1.437%, VAR ICE LIBOR USD 3 Month+1.200%, 07/15/2030 (C)		1,260		1,255
Dryden XXV Senior Loan Fund, Ser 2017-25A, Cl ARR
1.137%, VAR ICE LIBOR USD 3 Month+0.900%, 10/15/2027 (C)		841		839
Dryden XXVI Senior Loan Fund, Ser 2018-26A, Cl AR
1.137%, VAR ICE LIBOR USD 3 Month+0.900%, 04/15/2029 (C)		4,120		4,097
Educational Funding of the South, Ser 2011-1, Cl A2
0.865%, VAR ICE LIBOR USD 3 Month+0.650%, 04/25/2035		947		943

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
EFS Volunteer No. 3 LLC, Ser 2012-1, Cl A3
1.150%, VAR ICE LIBOR USD 1 Month+1.000%, 04/25/2033 (C)	$	3,315	$	3,302
Elmwood CLO II, Ser 2019-2A, Cl A
1.668%, VAR ICE LIBOR USD 3 Month+1.450%, 04/20/2031 (C)		3,100		3,096
FNMA Grantor Trust, Ser 2017-T1, Cl A
2.898%, 06/25/2027		299		329
Ford Credit Floorplan Master Owner Trust A, Ser 2020-1, Cl A1
0.700%, 09/15/2025		5,188		5,213
Ford Credit Floorplan Master Owner Trust A, Ser 2020-2, Cl A
1.060%, 09/15/2027		7,311		7,389
Global SC Finance II SRL, Ser 2014-1A, Cl A2
3.090%, 07/17/2029 (C)		1,010		1,012
GMF Floorplan Owner Revolving Trust, Ser 2020-2, Cl A
0.690%, 10/15/2025 (C)		1,599		1,601
Golub Capital Partners CLO, Ser 2019-45A, Cl A
1.938%, VAR ICE LIBOR USD 3 Month+1.720%, 10/20/2031 (C)		1,500		1,496
Halcyon Loan Advisors Funding, Ser 2018-2A, Cl AR
1.295%, VAR ICE LIBOR USD 3 Month+1.080%, 07/25/2027 (C)		504		502
Halsey Point CLO I, Ser 2019-1A, Cl A1A1
1.568%, VAR ICE LIBOR USD 3 Month+1.350%, 01/20/2033 (C)		590		590
HalseyPoint CLO III, Ser 2020-3A, Cl A1A
1.629%, VAR ICE LIBOR USD 3 Month+1.450%, 11/30/2032 (C)		700		700
Higher Education Funding I, Ser 2014-1, Cl A
1.257%, VAR ICE LIBOR USD 3 Month+1.050%, 05/25/2034 (C)		2,525		2,538
Hildene Community Funding CDO, Ser 2020-1A, Cl AR
3.250%, 11/01/2035 (C)		910		910
Hilton Grand Vacations Trust, Ser 2020-AA, Cl A
2.740%, 02/25/2039 (C)		1,458		1,518
Home Partners of America Trust, Ser 2019-2, Cl A
2.703%, 10/19/2039 (C)		3,706		3,894
HPEFS Equipment Trust, Ser 2020-2A, Cl A2
0.650%, 07/22/2030 (C)		4,750		4,759
HSI Asset Securitization Trust, Ser 2006-OPT1, Cl 2A4
0.450%, VAR ICE LIBOR USD 1 Month+0.300%, 12/25/2035		215		215

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   135

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
HSI Asset Securitization Trust, Ser 2006-OPT3, Cl 3A3
0.330%, VAR ICE LIBOR USD 1 Month+0.180%, 02/25/2036	$	286	$	285
Jamestown CLO IV, Ser 2017-4A, Cl A2R
1.587%, VAR ICE LIBOR USD 3 Month+1.350%, 07/15/2026 (C)		1,000		994
JFIN CLO, Ser 2017-2A, Cl A1AR
1.388%, VAR ICE LIBOR USD 3 Month+1.170%, 07/20/2026 (C)		146		146
JGWPT XXX LLC, Ser 2013-3A, Cl A
4.080%, 01/17/2073 (C)		1,453		1,665
JGWPT XXXII LLC, Ser 2014-2A, Cl A
3.610%, 01/17/2073 (C)		1,964		2,198
John Deere Owner Trust, Ser 2018-B, Cl A3
3.080%, 11/15/2022		906		916
John Deere Owner Trust, Ser 2020-B, Cl A2
0.410%, 03/15/2023		1,415		1,416
KGS-Alpha SBA COOF Trust, Ser 2012-A, Cl A, IO
0.542%, 08/25/2038 (A)(C)		1,185		25
KGS-Alpha SBA COOF Trust, Ser 2014-2, Cl A, IO
2.203%, 04/25/2040 (A)(C)		213		18
KKR CLO XVI, Ser 2019-16, Cl A1R
1.468%, VAR ICE LIBOR USD 3 Month+1.250%, 01/20/2029 (C)		1,640		1,638
KKR CLO XVI, Ser 2019-16, Cl A2R
2.018%, VAR ICE LIBOR USD 3 Month+1.800%, 01/20/2029 (C)		730		725
KKR CLO XXXII, Ser 2020-32A, Cl A1
1.938%, VAR ICE LIBOR USD 3 Month+1.320%, 01/15/2032 (C)		900		900
LCM Loan Income Fund I Income Note Issuer, Ser 2018-27A, Cl A1
1.310%, VAR ICE LIBOR USD 3 Month+1.080%, 07/16/2031 (C)		925		917
LCM XIII, Ser 2019-13A, Cl ARR
1.358%, VAR ICE LIBOR USD 3 Month+1.140%, 07/19/2027 (C)		2,485		2,482
LCM XVIII, Ser 2019-19A, Cl AR
1.477%, VAR ICE LIBOR USD 3 Month+1.240%, 07/15/2027 (C)		387		387
LCM XXI, Ser 2018-21A, Cl AR
1.098%, VAR ICE LIBOR USD 3 Month+0.880%, 04/20/2028 (C)		1,950		1,944
LCM XXIV, Ser 2017-24A, Cl A
1.528%, VAR ICE LIBOR USD 3 Month+1.310%, 03/20/2030 (C)		1,500		1,496
Magnetite XIV-R, Ser 2018-14RA, Cl A2
3.939%, 10/18/2031 (C)		2,910		2,890

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Magnetite XXVIII, Ser 2020-28A, Cl A
1.487%, VAR ICE LIBOR USD 3 Month+1.270%, 10/25/2031 (C)	$	3,300	$	3,296
Marathon CLO XIII, Ser 2019-1A, Cl A1BL
2.237%, VAR ICE LIBOR USD 3 Month+2.000%, 04/15/2032 (C)		1,000		999
MF1, Ser 2020-FL4, Cl A
1.851%, VAR ICE LIBOR USD 1 Month+1.700%, 11/15/2035 (C)		1,830		1,832
Mid-State Capital Trust, Ser 2004-1, Cl A
6.005%, 08/15/2037		172		183
Mid-State Capital Trust, Ser 2006-1, Cl A
5.787%, 10/15/2040 (C)		3,164		3,416
Mid-State Trust XI, Ser 2003-11, Cl A1
4.864%, 07/15/2038		1,498		1,600
Mill City Mortgage Trust, Ser 2015-2, Cl A2
3.000%, 09/25/2057 (A)(C)		998		1,009
MMAF Equipment Finance LLC, Ser 2020-BA, Cl A2
0.380%, 08/14/2023 (C)		1,215		1,215
MMAF Equipment Finance LLC, Ser 2020-BA, Cl A3
0.490%, 08/14/2025 (C)		2,285		2,284
MVW LLC, Ser 2019-2A, Cl A
2.220%, 10/20/2038 (C)		156		160
MVW LLC, Ser 2020-1A, Cl A
1.740%, 10/20/2037 (C)		1,696		1,726
Myers Park CLO, Ser 2018-1A, Cl B1
1.818%, VAR ICE LIBOR USD 3 Month+1.600%, 10/20/2030 (C)		890		888
Navient Private Education Loan Trust, Ser 2016-AA, Cl A2B
2.291%, VAR ICE LIBOR USD 1 Month+2.150%, 12/15/2045 (C)		667		682
Navient Private Education Loan Trust, Ser 2018-BA, Cl A2A
3.610%, 12/15/2059 (C)		656		684
Navient Private Education Refi Loan Trust, Ser 2018-A, Cl A2
3.190%, 02/18/2042 (C)		547		558
Navient Private Education Refi Loan Trust, Ser 2018-CA, Cl A2
3.520%, 06/16/2042 (C)		429		437
Navient Private Education Refi Loan Trust, Ser 2018-DA, Cl A2A
4.000%, 12/15/2059 (C)		3,150		3,331
Navient Private Education Refi Loan Trust, Ser 2019-A, Cl A2A
3.420%, 01/15/2043 (C)		3,533		3,695
Navient Private Education Refi Loan Trust, Ser 2019-CA, Cl A2
3.130%, 02/15/2068 (C)		2,096		2,154

  136   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Navient Private Education Refi Loan Trust, Ser 2019-D, Cl A2A
3.010%, 12/15/2059 (C)	$	3,368	$	3,541
Navient Private Education Refi Loan Trust, Ser 2019-D, Cl A2B
1.191%, VAR ICE LIBOR USD 1 Month+1.050%, 12/15/2059 (C)		1,601		1,605
Navient Private Education Refi Loan Trust, Ser 2019-FA, Cl A2
2.600%, 08/15/2068 (C)		7,017		7,245
Navient Private Education Refi Loan Trust, Ser 2019-GA, Cl A
2.400%, 10/15/2068 (C)		2,591		2,653
Navient Private Education Refi Loan Trust, Ser 2020-A, Cl A2A
2.460%, 11/15/2068 (C)		2,606		2,714
Navient Private Education Refi Loan Trust, Ser 2020-A, Cl A2B
1.041%, VAR ICE LIBOR USD 1 Month+0.900%, 11/15/2068 (C)		1,634		1,627
Navient Private Education Refi Loan Trust, Ser 2020-BA, Cl A1
1.800%, 01/15/2069 (C)		365		366
Navient Private Education Refi Loan Trust, Ser 2020-BA, Cl A2
2.120%, 01/15/2069 (C)		1,473		1,512
Navient Private Education Refi Loan Trust, Ser 2020-DA, Cl A
1.690%, 05/15/2069 (C)		2,374		2,415
Navient Private Education Refi Loan Trust, Ser 2020-EA, Cl A
1.690%, 05/15/2069 (C)		2,765		2,807
Navient Private Education Refi Loan Trust, Ser 2020-FA, Cl A
1.220%, 07/15/2069 (C)		1,385		1,393
Navient Private Education Refi Loan Trust, Ser 2020-GA, Cl A
1.170%, 09/16/2069 (C)		5,294		5,324
Navient Private Education Refi Loan Trust, Ser 2020-HA, Cl A
1.310%, 01/15/2069 (C)		7,565		7,624
Navient Student Loan Trust, Ser 2014-1, Cl A3
0.660%, VAR ICE LIBOR USD 1 Month+0.510%, 06/25/2031		3,566		3,470
Navient Student Loan Trust, Ser 2014-3, Cl A
0.770%, VAR ICE LIBOR USD 1 Month+0.620%, 03/25/2083		4,044		3,995
Navient Student Loan Trust, Ser 2014-4, Cl A
0.770%, VAR ICE LIBOR USD 1 Month+0.620%, 03/25/2083		2,775		2,703

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Navient Student Loan Trust, Ser 2016-3A, Cl A2
1.000%, VAR ICE LIBOR USD 1 Month+0.850%, 06/25/2065 (C)	$	43	$	43
Navient Student Loan Trust, Ser 2017-3A, Cl A3
1.200%, VAR ICE LIBOR USD 1 Month+1.050%, 07/26/2066 (C)		6,630		6,660
Navient Student Loan Trust, Ser 2018-EA, Cl A2
4.000%, 12/15/2059 (C)		1,694		1,755
Navient Student Loan Trust, Ser 2019-BA, Cl A2A
3.390%, 12/15/2059 (C)		2,612		2,740
Navient Student Loan Trust, Ser 2020-2A, Cl A1A
1.320%, 08/26/2069 (C)		4,678		4,678
Navient Student Loan Trust, Ser 2020-2A, Cl A1B
1.046%, VAR ICE LIBOR USD 1 Month+0.900%, 08/26/2069 (C)		1,913		1,919
Nelnet Student Loan Trust, Ser 2004-3, Cl A5
0.395%, VAR ICE LIBOR USD 3 Month+0.180%, 10/27/2036		1,034		1,016
Nelnet Student Loan Trust, Ser 2004-4, Cl A5
0.375%, VAR ICE LIBOR USD 3 Month+0.160%, 01/25/2037		2,037		1,999
Nelnet Student Loan Trust, Ser 2005-1, Cl A5
0.325%, VAR ICE LIBOR USD 3 Month+0.110%, 10/25/2033		6,686		6,489
Nelnet Student Loan Trust, Ser 2005-2, Cl A5
0.325%, VAR ICE LIBOR USD 3 Month+0.100%, 03/23/2037		5,914		5,731
Nelnet Student Loan Trust, Ser 2005-3, Cl A5
0.345%, VAR ICE LIBOR USD 3 Month+0.120%, 12/24/2035		5,140		5,048
Nelnet Student Loan Trust, Ser 2005-4, Cl A4
0.405%, VAR ICE LIBOR USD 3 Month+0.180%, 03/22/2032		781		736
Nelnet Student Loan Trust, Ser 2007-1, Cl A4
0.317%, VAR ICE LIBOR USD 3 Month+0.110%, 08/27/2036		3,390		3,231
Nelnet Student Loan Trust, Ser 2014-4A, Cl A2
1.100%, VAR ICE LIBOR USD 1 Month+0.950%, 11/25/2048 (C)		3,735		3,741
New Hampshire Higher Education Loan, Ser 2020-1, Cl A1A
1.550%, 09/25/2060		6,105		6,168
Newcastle Mortgage Securities Trust, Ser 2007-1, Cl 1A1
0.340%, VAR ICE LIBOR USD 1 Month+0.190%, 04/25/2037		10,375		9,963

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   137

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Northstar Education Finance, Ser 2007-1, Cl A2
0.972%, VAR ICE LIBOR USD 3 Month+0.750%, 01/29/2046	$	32	$	32
Ocean Trails CLO IX, Ser 2020-9A, Cl A1
2.153%, VAR ICE LIBOR USD 3 Month+1.870%, 10/15/2029 (C)		3,000		3,007
Octagon Investment Partners L, Ser 2020-4A, Cl A1
1.470%, VAR ICE LIBOR USD 3 Month+1.300%, 10/15/2033 (C)		3,235		3,236
Octagon Investment Partners XLV, Ser 2019-1A, Cl A
1.567%, VAR ICE LIBOR USD 3 Month+1.330%, 10/15/2032 (C)		1,500		1,499
OHA Credit Funding VII, Ser 2020-7A, Cl A
1.475%, VAR ICE LIBOR USD 3 Month+1.250%, 10/19/2032 (C)		760		760
Orange Lake Timeshare Trust, Ser 2018-A, Cl A
3.100%, 11/08/2030 (C)		299		306
Orange Lake Timeshare Trust, Ser 2019-A, Cl A
3.060%, 04/09/2038 (C)		1,646		1,708
Owl Rock CLO III, Ser 2020-3A, Cl A1L
2.018%, VAR ICE LIBOR USD 3 Month+1.800%, 04/20/2032 (C)		1,620		1,605
Parallel, Ser 2020-1A, Cl A1
1.983%, VAR ICE LIBOR USD 3 Month+1.825%, 07/20/2031 (C)		1,500		1,505
Parliament Funding II, Ser 2020-1A, Cl A
2.764%, VAR ICE LIBOR USD 3 Month+2.450%, 08/12/2030 (C)		1,525		1,529
PFS Financing, Ser 2018-F, Cl A
3.520%, 10/15/2023 (C)		1,100		1,130
RASC Trust, Ser 2006-KS2, Cl M2
0.735%, VAR ICE LIBOR USD 1 Month+0.585%, 03/25/2036		3,625		3,585
RASC Trust, Ser 2007-RZ1, Cl A3
0.400%, VAR ICE LIBOR USD 1 Month+0.250%, 02/25/2037		10,124		9,905
Recette CLO, Ser 2017-1A, Cl AR
1.138%, VAR ICE LIBOR USD 3 Month+0.920%, 10/20/2027 (C)		459		457
Rockford Tower CLO, Ser 2019-2A, Cl A
1.554%, VAR ICE LIBOR USD 3 Month+1.330%, 08/20/2032 (C)		5,000		4,996
RR III, Ser 2018-3A, Cl A1R2
1.327%, VAR ICE LIBOR USD 3 Month+1.090%, 01/15/2030 (C)		1,100		1,092
SBA Small Business Investment, Ser 2018-10B, Cl 1
3.548%, 09/10/2028		2,248		2,401

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
SBA Small Business Investment, Ser 2019-10A, Cl 1
3.113%, 03/10/2029	$	1,080	$	1,150
Seven Sticks CLO, Ser 2018-1A, Cl A1R
1.287%, VAR ICE LIBOR USD 3 Month+1.050%, 07/15/2028 (C)		676		673
Silver Rock CLO I, Ser 2020-1A, Cl A
1.847%, VAR ICE LIBOR USD 3 Month+1.650%, 10/20/2031 (C)		2,350		2,347
SLC Student Loan Trust, Ser 2008-1, Cl A4A
1.850%, VAR ICE LIBOR USD 3 Month+1.600%, 12/15/2032		1,080		1,096
SLM Student Loan Trust, Ser 2003-1, Cl A5C
1.000%, VAR ICE LIBOR USD 3 Month+0.750%, 12/15/2032 (C)		1,065		1,012
SLM Student Loan Trust, Ser 2003-4, Cl A5D
1.000%, VAR ICE LIBOR USD 3 Month+0.750%, 03/15/2033 (C)		967		922
SLM Student Loan Trust, Ser 2003-7A, Cl A5A
1.450%, VAR ICE LIBOR USD 3 Month+1.200%, 12/15/2033 (C)		3,516		3,445
SLM Student Loan Trust, Ser 2006-8, Cl A6
0.375%, VAR ICE LIBOR USD 3 Month+0.160%, 01/25/2041		4,250		4,006
SLM Student Loan Trust, Ser 2007-2, Cl A4
0.275%, VAR ICE LIBOR USD 3 Month+0.060%, 07/25/2022		2,188		2,094
SLM Student Loan Trust, Ser 2008-2, Cl B
1.415%, VAR ICE LIBOR USD 3 Month+1.200%, 01/25/2083		1,155		1,025
SLM Student Loan Trust, Ser 2008-3, Cl B
1.415%, VAR ICE LIBOR USD 3 Month+1.200%, 04/26/2083		1,155		1,054
SLM Student Loan Trust, Ser 2008-4, Cl B
2.065%, VAR ICE LIBOR USD 3 Month+1.850%, 04/25/2073		1,155		1,053
SLM Student Loan Trust, Ser 2008-5, Cl B
2.065%, VAR ICE LIBOR USD 3 Month+1.850%, 07/25/2073		1,155		1,106
SLM Student Loan Trust, Ser 2008-6, Cl A4
1.315%, VAR ICE LIBOR USD 3 Month+1.100%, 07/25/2023		4,798		4,724
SLM Student Loan Trust, Ser 2008-6, Cl B
2.065%, VAR ICE LIBOR USD 3 Month+1.850%, 07/26/2083		1,155		1,093
SLM Student Loan Trust, Ser 2008-7, Cl B
2.065%, VAR ICE LIBOR USD 3 Month+1.850%, 07/26/2083		1,155		1,117
SLM Student Loan Trust, Ser 2008-8, Cl B
2.465%, VAR ICE LIBOR USD 3 Month+2.250%, 10/25/2075		1,155		1,136

  138   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
SLM Student Loan Trust, Ser 2008-9, Cl A
1.715%, VAR ICE LIBOR USD 3 Month+1.500%, 04/25/2023	$	3,322	$	3,313
SLM Student Loan Trust, Ser 2008-9, Cl B
2.465%, VAR ICE LIBOR USD 3 Month+2.250%, 10/25/2083		1,155		1,141
SLM Student Loan Trust, Ser 2010-1, Cl A
0.550%, VAR ICE LIBOR USD 1 Month+0.400%, 03/25/2025		131		127
SLM Student Loan Trust, Ser 2011-2, Cl A2
1.350%, VAR ICE LIBOR USD 1 Month+1.200%, 10/25/2034		495		502
SLM Student Loan Trust, Ser 2012-1, Cl A3
1.100%, VAR ICE LIBOR USD 1 Month+0.950%, 09/25/2028		3,488		3,371
SLM Student Loan Trust, Ser 2012-2, Cl A
0.850%, VAR ICE LIBOR USD 1 Month+0.700%, 01/25/2029		3,035		2,879
SLM Student Loan Trust, Ser 2012-6, Cl A3
0.900%, VAR ICE LIBOR USD 1 Month+0.750%, 05/26/2026		638		618
SLM Student Loan Trust, Ser 2014-3A, Cl A6A
0.765%, VAR ICE LIBOR USD 3 Month+0.550%, 10/25/2064 (C)		7,720		7,582
SMB Private Education Loan Trust, Ser 2016-A, Cl A2A
2.700%, 05/15/2031 (C)		1,884		1,931
SMB Private Education Loan Trust, Ser 2016-B, Cl A2A
2.430%, 02/17/2032 (C)		921		941
SMB Private Education Loan Trust, Ser 2016-B, Cl A2B
1.591%, VAR ICE LIBOR USD 1 Month+1.450%, 02/17/2032 (C)		2,895		2,916
SMB Private Education Loan Trust, Ser 2016-C, Cl A2B
1.241%, VAR ICE LIBOR USD 1 Month+1.100%, 09/15/2034 (C)		1,007		1,008
SMB Private Education Loan Trust, Ser 2018-C, Cl A2A
3.630%, 11/15/2035 (C)		1,193		1,265
SMB Private Education Loan Trust, Ser 2019-A, Cl A2A
3.440%, 07/15/2036 (C)		5,742		6,056
SMB Private Education Loan Trust, Ser 2020-BA, Cl A1A
1.290%, 07/15/2053 (C)		3,863		3,874
SMB Private Education Loan Trust, Ser 2020-PTA, Cl A2A
1.600%, 09/15/2054 (C)		3,490		3,516
SMB Private Education Loan Trust, Ser 2020-PTB, Cl A2A
1.600%, 09/15/2054 (C)		9,101		9,148

Description	Face Amount (Thousands)		Market Value   ($ Thousands)
ASSET-BACKED SECURITIES (continued)
SoFi Consumer Loan Program LLC, Ser 2017-4, Cl A
2.500%, 05/26/2026 (C)	$	111	$	111
SoFi Consumer Loan Program LLC, Ser 2017-6, Cl A2
2.820%, 11/25/2026 (C)		86		86
SoFi Consumer Loan Program Trust, Ser 2018-1, Cl A2
3.140%, 02/25/2027 (C)		885		889
SoFi Consumer Loan Program Trust, Ser 2019-4, Cl A
2.450%, 08/25/2028 (C)		1,844		1,864
SoFi Professional Loan Program LLC, Ser 2016-A, Cl A2
2.760%, 12/26/2036 (C)		535		543
SoFi Professional Loan Program LLC, Ser 2016-D, Cl A1
1.100%, VAR ICE LIBOR USD 1 Month+0.950%, 01/25/2039 (C)		82		83
SoFi Professional Loan Program LLC, Ser 2016-E, Cl A1
1.000%, VAR ICE LIBOR USD 1 Month+0.850%, 07/25/2039 (C)		154		154
SoFi Professional Loan Program LLC, Ser 2017-A, Cl A1
0.850%, VAR ICE LIBOR USD 1 Month+0.700%, 03/26/2040 (C)		180		180
SoFi Professional Loan Program LLC, Ser 2017-D, Cl A2FX
2.650%, 09/25/2040 (C)		142		146
SoFi Professional Loan Program LLC, Ser 2017-E, Cl A1
0.650%, VAR ICE LIBOR USD 1 Month+0.500%, 11/26/2040 (C)		100		100
SoFi Professional Loan Program LLC, Ser 2017-E, Cl A2B
2.720%, 11/26/2040 (C)		951		966
SoFi Professional Loan Program LLC, Ser 2018-A, Cl A2B
2.950%, 02/25/2042 (C)		949		970
SoFi Professional Loan Program Trust, Ser 2018-B, Cl A2FX
3.340%, 08/25/2047 (C)		2,949		3,034
SoFi Professional Loan Program Trust, Ser 2020-A, Cl A2FX
2.540%, 05/15/2046 (C)		4,293		4,434
SoFi Professional Loan Program Trust, Ser 2020-C, Cl AFX
1.950%, 02/15/2046 (C)		3,871		3,952
South Carolina Student Loan, Ser 2015-A, Cl A
1.650%, VAR ICE LIBOR USD 1 Month+1.500%, 01/25/2036		1,845		1,850

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   139

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Stack Infrastructure Issuer LLC, Ser 2020-1A, Cl A2
1.893%, 08/25/2045 (C)	$	2,480	$	2,506
Structured Asset Investment Loan Trust, Ser 2004-8, Cl A2
0.700%, VAR ICE LIBOR USD 1 Month+0.550%, 09/25/2034		3,243		3,122
Structured Asset Securities Mortgage Loan Trust, Ser 2006-BC5, Cl A4
0.320%, VAR ICE LIBOR USD 1 Month+0.170%, 12/25/2036		4,937		4,821
Symphony CLO XIX, Ser 2018-19A, Cl A
1.190%, VAR ICE LIBOR USD 3 Month+0.960%, 04/16/2031 (C)		3,135		3,094
TCI-Flatiron CLO, Ser 2019-1A, Cl AR
1.438%, VAR ICE LIBOR USD 3 Month+1.220%, 07/17/2028 (C)		500		499
TCI-Symphony CLO, Ser 2018-1A, Cl BR
1.874%, VAR ICE LIBOR USD 3 Month+1.650%, 10/13/2029 (C)		1,500		1,482
Towd Point Mortgage Trust, Ser 2015-5,Cl A1B
2.750%, 05/25/2055 (A)(C)		371		374
Towd Point Mortgage Trust, Ser 2018-2, Cl A1
3.250%, 03/25/2058 (A)(C)		1,183		1,235
Towd Point Mortgage Trust, Ser 2019-4, Cl A1
2.900%, 10/25/2059 (A)(C)		2,481		2,606
Towd Point Mortgage Trust, Ser 2019-MH1, Cl A1
3.000%, 11/25/2058 (A)(C)		1,136		1,164
Towd Point Mortgage Trust, Ser 2020-3, Cl A1
3.088%, 02/25/2063 (A)(C)		3,560		3,706
Tralee CLO III, Ser 2017-3A, Cl AR
1.248%, VAR ICE LIBOR USD 3 Month+1.030%, 10/20/2027 (C)		769		768
Tralee CLO V, Ser 2018-5A, Cl B
1.918%, VAR ICE LIBOR USD 3 Month+1.700%, 10/20/2028 (C)		990		978
Tralee CLO VI, Ser 2019-6A, Cl AS
1.515%, VAR ICE LIBOR USD 3 Month+1.300%, 10/25/2032 (C)		1,760		1,758
Triton Container Finance VIII LLC, Ser 2020-1A, Cl A
2.110%, 09/20/2045 (C)		1,607		1,614
U.S. Small Business Administration, Ser 2019-20D, Cl 1
2.980%, 04/01/2039		584		634
U.S. Small Business Administration, Ser 2019-25G, Cl 1
2.690%, 07/01/2044		589		636
Venture XXXII CLO, Ser 2018-32A, Cl A2A
1.288%, VAR ICE LIBOR USD 3 Month+1.070%, 07/18/2031 (C)		900		894

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Verizon Owner Trust, Ser 2019-C, Cl A1A
1.940%, 04/22/2024	$	4,029	$	4,118
Verizon Owner Trust, Ser 2020-A, Cl A1A
1.850%, 07/22/2024		3,894		3,989
Verizon Owner Trust, Ser 2020-C, Cl A
0.410%, 04/21/2025		1,512		1,513
Voya CLO, Ser 2017-2A, Cl A2A
1.947%, VAR ICE LIBOR USD 3 Month+1.710%, 06/07/2030 (C)		1,000		994
Voya CLO, Ser 2018-3A, Cl A1A
1.387%, VAR ICE LIBOR USD 3 Month+1.150%, 10/15/2031 (C)		2,810		2,804
Voya CLO, Ser 2018-3A, Cl A1R
1.408%, VAR ICE LIBOR USD 3 Month+1.190%, 10/18/2031 (C)		750		749
Wellfleet CLO, Ser 2020-2A, Cl A
2.054%, VAR ICE LIBOR USD 3 Month+1.850%, 07/15/2031 (C)		1,020		1,023
Wells Fargo Home Equity Asset-Backed Securities Trust, Ser 2006-2, Cl M2
0.440%, VAR ICE LIBOR USD 1 Month+0.290%, 07/25/2036		10,500		10,037
Whitebox CLO II, Ser 2020-2A, Cl A1
1.992%, VAR ICE LIBOR USD 3 Month+1.750%, 10/24/2031 (C)		1,710		1,708
Zais CLO II, Ser 2017-2A, Cl A1BR
2.920%, 07/25/2026 (C)		117		117
Zais CLO V, Ser 2016-2A, Cl A1
1.767%, VAR ICE LIBOR USD 3 Month+1.530%, 10/15/2028 (C)		976		975
Zais CLO XIII, Ser 2019-13A, Cl A1A
1.727%, VAR ICE LIBOR USD 3 Month+1.490%, 07/15/2032 (C)		1,302		1,301
Zais CLO XVI, Ser 2020-16A, Cl A2
2.590%, VAR ICE LIBOR USD 3 Month+2.300%, 10/20/2031 (C)		2,775		2,774
				493,969
Total Asset-Backed Securities (Cost $652,848) ($ Thousands)				660,504
SOVEREIGN DEBT — 1.8%
Abu Dhabi Government International Bond
3.875%, 04/16/2050 (C)		1,010		1,253
2.500%, 10/11/2022 (C)		4,020		4,163
2.500%, 04/16/2025 (C)		3,681		3,929
1.700%, 03/02/2031 (C)		440		440
Asian Development Bank MTN
0.625%, 04/07/2022		2,566		2,581
Bermuda Government International Bond
3.375%, 08/20/2050 (C)		777		823

  140   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
SOVEREIGN DEBT (continued)
China Government Bond
3.310%, 11/30/2025	CNY	5,000	$	783
Colombia Government International Bond
5.625%, 02/26/2044	$	2,570		3,272
5.200%, 05/15/2049		3,300		4,154
5.000%, 06/15/2045		1,840		2,212
3.125%, 04/15/2031		1,010		1,060
Export-Import Bank of India
3.375%, 08/05/2026 (C)		1,410		1,515
Indonesia Government International Bond
5.875%, 01/15/2024 (C)		1,264		1,454
5.250%, 01/08/2047 (C)		1,210		1,630
5.125%, 01/15/2045 (C)		2,040		2,660
4.875%, 05/05/2021		500		508
4.750%, 07/18/2047 (C)		400		507
4.450%, 04/15/2070		1,025		1,266
3.850%, 07/18/2027 (C)		1,610		1,835
3.750%, 04/25/2022		500		520
Inter-American Development Bank MTN
0.875%, 04/03/2025		2,633		2,683
Israel Government AID Bond
5.500%, 09/18/2033		1,000		1,472
4.120%, 11/01/2024 (B)		1,000		972
3.487%, 02/15/2025 (B)		1,000		968
3.425%, 08/15/2025 (B)		1,000		965
Israel Government International Bond
4.500%, 04/03/2120		477		631
3.875%, 07/03/2050		400		478
3.375%, 01/15/2050		748		826
2.750%, 07/03/2030		720		795
Japan Bank for International Cooperation
1.750%, 10/17/2024		1,894		1,982
Kazakhstan Government International Bond
4.875%, 10/14/2044 (C)		2,480		3,351
Kuwait International Government Bond
3.500%, 03/20/2027 (C)		1,810		2,059
Mexico Government International Bond
6.050%, 01/11/2040		4,408		5,764
4.750%, 03/08/2044		5,026		5,786
4.600%, 02/10/2048		608		691
4.500%, 04/22/2029		2,944		3,396
4.350%, 01/15/2047 (D)		716		789
4.000%, 10/02/2023 (D)		810		880
3.900%, 04/27/2025		1,640		1,816
3.771%, 05/24/2061		622		621
3.600%, 01/30/2025		3,190		3,485
2.659%, 05/24/2031		6,061		6,067
Panama Government International Bond
6.700%, 01/26/2036		1,830		2,688
4.500%, 05/15/2047		2,430		3,074
4.500%, 04/01/2056		830		1,054
4.300%, 04/29/2053		950		1,185

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
SOVEREIGN DEBT (continued)
3.160%, 01/23/2030	$	110	$	121
2.252%, 09/29/2032		870		882
Paraguay Government International Bond
5.400%, 03/30/2050 (C)		1,023		1,276
4.950%, 04/28/2031 (C)		833		987
Peruvian Government International Bond
6.550%, 03/14/2037		2,280		3,397
5.625%, 11/18/2050		2,400		3,666
3.230%, 07/28/2121		272		268
2.780%, 12/01/2060		564		558
2.392%, 01/23/2026		1,791		1,885
1.862%, 12/01/2032		1,020		1,012
Poland Government International Bond
4.000%, 01/22/2024		7,630		8,466
Qatar Government International Bond
4.817%, 03/14/2049 (C)		2,970		4,110
4.000%, 03/14/2029 (C)		1,380		1,629
3.875%, 04/23/2023		2,870		3,081
Russian Foreign Bond - Eurobond
5.625%, 04/04/2042		7,000		9,562
Saudi Government International Bond MTN
2.875%, 03/04/2023 (C)		530		554
Svensk Exportkredit MTN
0.750%, 04/06/2023		3,407		3,442
Uruguay Government International Bond
5.100%, 06/18/2050		2,630		3,613
4.375%, 01/23/2031		3,280		3,961
Total Sovereign Debt (Cost $125,256) ($ Thousands)				143,513
MUNICIPAL BONDS — 0.6%
California — 0.2%
Los Angeles, Community College District, Build America Project, GO
6.750%, 08/01/2049		725		1,299
Los Angeles, Community College District, GO Callable 08/01/2030 @ 100
2.106%, 08/01/2032		2,165		2,231
Los Angeles, Department of Airports, Ser D, RB Callable 05/15/2030 @ 100
4.000%, 05/15/2048		945		1,117
Los Angeles, Unified School District, Ser C, GO Callable 07/01/2030 @ 100
4.000%, 07/01/2033		670		833
Regents of the University of California, Ser N, RB Callable 11/15/2059 @ 100
3.256%, 05/15/2060		5,165		5,597

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   141

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MUNICIPAL BONDS (continued)
San Francisco City & County, Airport Commission, San Francisco International Airport, Ser A, AMT, RB Callable 05/01/2029 @ 100
5.000%, 05/01/2049	$	990	$	1,214
				12,291
Florida — 0.0%
County of Miami-Dade, Aviation Revenue, Ser A, AMT, RB Callable 10/01/2029 @ 100
5.000%, 10/01/2049		920		1,111
Greater Orlando, Aviation Authority, Ser A, AMT, RB Callable 10/01/2029 @ 100
4.000%, 10/01/2049		980		1,113
				2,224
Georgia — 0.1%
Georgia State, Municipal Electric Authority, Build America Project, RB
7.055%, 04/01/2057		161		231
6.637%, 04/01/2057		2,353		3,530
				3,761
Massachusetts — 0.1%
Massachusetts State, Ser C, GO Callable 03/01/2030 @ 100
3.000%, 03/01/2049		3,250		3,539
Missouri — 0.0%
Missouri State, Health and Education Facilities, RB Callable 11/15/2049 @ 100
3.229%, 05/15/2050		650		748
Missouri State, Health and Education Facilities, RB Callable 02/15/2057 @ 100
3.652%, 08/15/2057		885		1,113
				1,861
Nevada — 0.0%
Clark County, Airport System Revenue, Build America Project, Ser C, RB
6.820%, 07/01/2045		1,170		1,932
New York — 0.2%
New York & New Jersey, Port Authority, RB
4.458%, 10/01/2062		1,600		2,084
New York City, Build America Project, Ser F-1, GO Callable 12/01/2020 @ 100
6.646%, 12/01/2031		2,000		2,000

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MUNICIPAL BONDS (continued)
New York City, Transitional Finance Authority Future Tax Secured Revenue, Ser D-3, RB Callable 11/01/2030 @ 100
2.400%, 11/01/2032	$	1,085	$	1,094
New York City, Transitional Finance Authority Future Tax Secured Revenue, Sub-Ser S, RB Callable 11/01/2030 @ 100
4.000%, 05/01/2043		900		1,068
New York City, Water & Sewer System, Ser GG, RB Callable 06/15/2030 @ 100
4.000%, 06/15/2050		500		591
New York City, Water & Sewer System, Sub-Ser, RB Callable 12/15/2030 @ 100
5.000%, 06/15/2050		860		1,124
New York State, Dormitory Authority, Ser A, RB Callable 07/01/2030 @ 100
4.000%, 07/01/2050		1,945		2,225
New York State, Dormitory Authority, Ser A, RB Callable 09/15/2030 @ 100
4.000%, 03/15/2044		2,845		3,353
New York State, Environmental Facilities, Ser B, RB Callable 06/15/2029 @ 100
4.000%, 06/15/2037		1,420		1,721
New York State, Transportation Authority, Ser C2, RB
5.175%, 11/15/2049		1,685		1,889
				17,149
Ohio — 0.0%
Ohio State University, Build America Project, Ser A, RB
4.800%, 06/01/2111		689		993
Oregon — 0.0%
Oregon State, GO
5.762%, 06/01/2023		1,340		1,456
Texas — 0.0%
North Texas, Tollway Authority, Build America Project, RB
6.718%, 01/01/2049		1,154		1,999
University of Texas System, Ser B, RB Callable 02/15/2049 @ 100
2.439%, 08/15/2049		585		597
				2,596

  142   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MUNICIPAL BONDS (continued)
Virginia — 0.0%
University of Virginia, RB Callable 03/01/2050 @ 100
2.256%, 09/01/2050	$	1,595	$	1,578
Virginia State, Housing Development Authority, Ser 2006-C, Cl CTFS, RB
6.000%, 06/25/2034		106		112
				1,690
Total Municipal Bonds (Cost $43,885) ($ Thousands)				49,492
U.S. GOVERNMENT AGENCY OBLIGATIONS — 0.4%
FHLB DN
0.098%, 01/29/2021 (B)		2,670		2,670
FHLMC
2.375%, 01/13/2022		565		579
1.449%, 07/15/2031 (B)		600		515
1.434%, 07/15/2032 (B)		1,280		1,078
1.304%, 03/15/2031 (B)		4,615		3,992
FNMA
2.625%, 09/06/2024		510		555
2.000%, 01/05/2022		70		71
1.353%, 11/15/2030 (B)		445		389
0.500%, 06/17/2025		7,405		7,431
FNMA DN
0.160%, 01/15/2021 (B)		10,000		9,999
Resolution Funding Interest STRIP
1.322%, 01/15/2030 (B)		1,930		1,718
Resolution Funding Principal STRIP
1.357%, 01/15/2030 (B)		960		854
1.304%, 04/15/2030 (B)		2,570		2,281
Tennessee Valley Authority
0.750%, 05/15/2025		1,895		1,918
Tennessee Valley Authority Principal STRIP, PO
0.000%, 11/01/2025 (B)		1,000		959
Total U.S. Government Agency Obligations (Cost $34,683) ($ Thousands)				35,009

Description	Shares			Market Value     ($ Thousands)
AFFILIATED PARTNERSHIP — 0.1%
SEI Liquidity Fund, L.P.
0.070% **†(H)		9,927,271		$	9,931
Total Affiliated Partnership (Cost $9,929) ($ Thousands)					9,931
CASH EQUIVALENT — 5.6%
SEI Daily Income Trust, Government Fund, Cl F
0.010%**†		454,913,219			454,913
Total Cash Equivalent (Cost $454,913) ($ Thousands)					454,913
Total Investments in Securities — 109.3% (Cost $8,603,838) ($ Thousands)				$	8,938,451
		Contracts
PURCHASED OPTIONS* — 0.0%
Total Purchased Options (I) (Cost $317) ($ Thousands)		3,296		$	133
WRITTEN OPTIONS* — 0.0%
Total Written Options (I) (Premiums Received $355) ($ Thousands)		(1,368	)	$	(233	)

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   143

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Concluded)

A list of the exchange traded option contracts held by the Fund at November 30, 2020 is as follows:

Description	Number of Contracts			Notional  Amount (Thousands)††			Exercise Price		Expiration Date		Value (Thousands)
PURCHASED OPTIONS — 0.0%
Put Options
December 2020, U.S. 10 Year Future Option*		840		$	80		$	137.25		12/19/2020	$	13
March 2022, Euro Future Option*		1,616			158			99.63		3/19/2022		81
					238							94
Call Options
December 2020, U.S. 10 Year Future Option*		840			80			138.75		12/19/2020		39
Total Purchased Options				$	318						$	133
WRITTEN OPTIONS — (0.0)%
Put Options
December 2020, U.S. Treasury Future Option*		(280	)	$	(83	)		138.00		12/19/2020	$	(39	)
March 2022, Euro Future Option*		(808	)		(180	)		99.75		3/19/2022		(106	)
					(263	)						(145	)
Call Options
December 2020, U.S. Treasury Future Option*		(280	)		(92	)		138.00		12/19/2020		(88	)
					(92	)						(88	)
Total Written Options				$	(355	)					$	(233	)

A list of the open futures contracts held by the Fund at November 30, 2020 is as follows:

Type of Contract	Number of Contracts Long (Short)			Expiration Date		Notional Amount (Thousands)			Value (Thousands)			Unrealized Appreciation (Depreciation) (Thousands)
90-Day Euro$		(1,112	)		Dec-2021	$	(275,639	)	$	(277,333	)	$	(1,694	)
90-Day Euro$		(1,102	)		Mar-2021		(274,721	)		(274,921	)		(200	)
Euro-Bund		(221	)		Dec-2020		(45,580	)		(46,329	)		(673	)
Euro-Bund		(142)			Mar-2021		(30,167	)		(30,167	)		32
U.S. 2-Year Treasury Note		(269)			Apr-2021		(59,385	)		(59,409	)		(24	)
U.S. 5-Year Treasury Note		86			Apr-2021		10,826			10,839			13
U.S. 5-Year Treasury Note		(1,631	)		Apr-2021		(205,287	)		(205,557	)		(270	)
U.S. 10-Year Treasury Note		1,382			Mar-2021		190,689			190,954			265
U.S. Long Treasury Bond		829			Mar-2021		144,526			144,997			471
U.S. Long Treasury Bond		(442	)		Mar-2021		(76,842	)		(77,309	)		(467	)
U.S. Ultra Long Treasury Bond		212			Mar-2021		45,917			45,798			(119	)
U.S. Ultra Long Treasury Bond		580			Mar-2021		124,773			125,298			525
Ultra 10-Year U.S. Treasury Note		(620	)		Mar-2021		(97,291	)		(97,418	)		(127	)
						$	(548,181	)	$	(550,557	)	$	(2,268	)

  144   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

A list of the open forward foreign currency contracts held by the Fund at November 30, 2020 is as follows:

Counterparty	Settlement Date			Currency to Deliver (Thousands)			Currency to Receive (Thousands)		Unrealized Appreciation     (Depreciation) (Thousands)
BNP Paribas		01/19/21	EUR		3,150	USD		3,722	$	(52)
BNP Paribas		01/19/21	CNH		9,709	USD		1,435		(36)
Citigroup		01/19/21	EUR		2,790	USD		3,293		(49)
Citigroup		01/19/21	USD		3,702	AUD		5,148		92
Citigroup		01/19/21	USD		8,529	BRL		48,360		444
Citigroup		01/19/21	USD		14,785	CAD		19,600		348
Goldman Sachs		01/19/21	GBP		1,568	USD		2,029		(65)
Goldman Sachs		01/19/21	EUR		3,998	USD		4,723		(66)
Goldman Sachs		01/19/21	USD		4,354	BRL		24,767		241
									$	857

A list of the open centrally cleared swap agreements held by the Fund at November 30, 2020 is as follows:

Credit Default Swaps
Reference Entity/ Obligation	Buy/Sell Protection		(Pays)/ Receives Rate		Payment Frequency		Termination Date		Notional Amount (Thousands)			Value     (Thousands)		Upfront Payments/ Receipts (Thousands)			Net Unrealized Appreciation (Depreciation) (Thousands)
CDX.NA.IG.3406		Sell		1.00%		Quarterly		06/20/2025		(229,898	)	$	3,960	$	(495	)	$	4,455
CDX.NA.IG.3506		Sell		1.00%		Quarterly		12/20/2025		(23,967	)		303		568			(265	)
												$	4,263	$	73		$	4,190

Interest Rate Swaps
Fund Pays	Fund Receives		Payment Frequency		Termination Date		Currency		Notional Amount (Thousands)		Value (Thousands)			Upfront Payments/ Receipts (Thousands)		Net Unrealized Appreciation (Depreciation) (Thousands)
USD-LIBOR-BBA		0.19%		Semi-Annually		06/15/2022		USD		64,527	$	(36	)	$	–	$	(36	)
0.56%		USD-SOFTRATE		Annually		07/20/2045		USD		7,490		750			95		655
USD-SOFRRATE		0.74%		Annually		08/19/2045		USD		4,960		298			–		298
0.80%		USD-LIBOR-BBA		Quarterly		11/15/2045		USD		21,290		2,154			445		1,709
1.20%		USD - LIBOR -BBA		Quarterly		02/15/2047		USD		4,144		60			23		37
1.23%		USD - LIBOR -BBA		Quarterly		02/15/2047		USD		1,991		17			1		16
1.00%		USD-LIBOR-BBA		Quarterly		02/15/2047		USD		11,120		679			133		546
0.90%		3-MONTH USD - LIBOR		Quarterly		03/17/2050		USD		6,235		592			7		585
1.20%		US LIBOR BBA		Quarterly		10/07/2050		USD		8,946		164			45		119
											$	4,678		$	749	$	3  ,929

Percentages are based on Net Assets of $8,179,101 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

^†  Investment in Affiliated Security (see Note 6).

^††  Represents cost.

(A) Zero coupon security. The rate shown on the Schedule of Investments is the security’s effective yield at the time of purchase.

(B) Variable or floating rate security, the interest rate of which adjusts periodically based on changes in current interest rates and prepayments on the underlying pool of assets.

(C) Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration normally to qualified institutions. On November 30, 2020, the value of these securities amounted to $1,109,914 ($ Thousands), representing 13.6% of the Net Assets of the Fund.

(D) Certain securities or partial positions of certain securities are on loan at November 30, 2020 (see Note 12). The total market value of securities on loan at November 30, 2020 was $9,808 ($ Thousands).

(E) Perpetual security with no stated maturity date.

(F) Security is in default on interest payment.

(G) Interest rate is unavailable.

(H) This security was purchased with cash collateral held from securities on loan (see Note 12). The total market value of such securities as of November 30, 2020 was $9,931 ($ Thousands). (I) Refer to table below for details on Options Contracts.

ACES — Alternative Credit Enhancement Securities

AID — Agency for International Development

ARM — Adjustable Rate Mortgage AUD — Australian Dollar

BRL — Brazilian Real

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   145

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Core Fixed Income Fund (Concluded)

CAD — Canadian Dollar

Cl — Class

CLO — Collateralized Loan Obligation

CMO — Collateralized Mortgage Obligation

CNH — Chinese Yuan Offshore

CNY — Chinese Yuan Offshore

DAC — Designated Activity Company

DN — Discount Note

EUR — Euro

FHLB — Federal Home Loan Bank

FHLMC — Federal Home Loan Mortgage Corporation

FNMA — Federal National Mortgage Association

FREMF— Freddie Mac Multi-Family

GBP — British Pound Sterling

GNMA — Government National Mortgage Association

GO — General Obligation

ICE— Intercontinental Exchange

IO — Interest Only — face amount represents notional amount.

JSC — Joint-Stock Company

LIBOR— London Interbank Offered Rate

LLC — Limited Liability Company

L.P. — Limited Partnership

MTN — Medium Term Note

NCUA — National Credit Union Association

PLC — Public Limited Company

PO — Principal Only

RB — Revenue Bond

REMIC — Real Estate Mortgage Investment Conduit

Ser — Series

STRIPS — Separately Traded Registered Interest and Principal Securities TBA — To Be Announced

UMBS — Uniform Mortgage Backed Securities

USD — United States Dollar

VAR — Variable Rate

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands)

Investments in Securities	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total ($)
Mortgage-Backed Securities		–		2,702,976		–		2,702,976
Corporate Obligations		–		2,624,926		–		2,624,926
U.S. Treasury Obligations		–		2,257,187		–		2,257,187
Asset-Backed Securities		–		660,504		–		660,504
Sovereign Debt		–		143,513		–		143,513
Municipal Bonds		–		49,492		–		49,492
U.S. Government Agency Obligations		–		35,009		–		35,009
Affiliated Partnership		–		9,931		–		9,931
Cash Equivalent		454,913		–		–		454,913
Total Investments in Securities		454,913		8,483,538		–		8,938,451

Other Financial Instruments	Level 1 ($)		Level 2 ($)		Level 3 ($)		Total ($)
Purchased Options		133		–		–		133
Written Options		(233)		–		–		(233)
Futures Contracts*
Unrealized Appreciation		1,306		–		–		1,306
Unrealized Depreciation		(3,574)		–		–		(3,574)
Forwards Contracts*
Unrealized Appreciation		–		1,125		–		1,125
Unrealized Depreciation		–		(268)		–		(268)
Centrally Cleared Swaps
Credit Default Swaps*
Unrealized Appreciation		–		4,455		–		4,455
Unrealized Depreciation		–		(265)		–		(265)
Interest Rate Swaps*
Unrealized Appreciation		–		3,965		–		3,965
Unrealized Depreciation		–		(36)		–		(36)
Total Other Financial Instruments		(2,368)		8,976		–		6,608

* Futures contracts, forward contracts and swap contracts are valued at the unrealized appreciation (depreciation) on the instrument.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 – Significant Accounting Policies in Notes to Financial Statements.

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020	Purchases at Cost	Proceeds from   Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/ (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Liquidity Fund, L.P.	$ —	$ 46,490	$ (36,556)	$(5)	$2	$ 9,931	9,927,271	$ 1	$—
SEI Daily Income Trust, Government Fund, Cl F	360,500	3,205,105	(3,110,692)	—	—	454,913	454,913,219	40	—
Totals	$ 360,500	$ 3,251,595	$ (3,147,248)	$(5)	$2	$ 464,844		$ 41	$—

Amounts designated as “—” are $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  146   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund

Sector Weightings^†:

^†Percentages are based on total investments.

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS — 76.1%
Communication Services — 13.3%
Altice Financing
7.500%, 05/15/2026 (A)	$	2,020	$	2,131
5.000%, 01/15/2028 (A)		5,351		5,485
Altice France
8.125%, 02/01/2027 (A)		1,647		1,816
7.375%, 05/01/2026 (A)		5,421		5,692
Altice France Holding
10.500%, 05/15/2027 (A)		1,135		1,279
6.000%, 02/15/2028 (A)		5,758		5,844
AMC Entertainment Holdings
12.000%, 06/15/2026 (A)		169		44
10.500%, 04/24/2026 (A)		61		46
6.125%, 05/15/2027		680		112
5.750%, 06/15/2025		370		61
ANGI Group LLC
3.875%, 08/15/2028 (A)		3,539		3,499
Arches Buyer
6.125%, 12/01/2028 (A)		1,626		1,669
4.250%, 06/01/2028 (A)		188		188
Belo
7.250%, 09/15/2027		442		504
CCO Holdings LLC
5.750%, 02/15/2026 (A)		4,545		4,710
5.500%, 05/01/2026 (A)		5,140		5,353
5.125%, 05/01/2027 (A)		2,896		3,047
5.000%, 02/01/2028 (A)		6,240		6,575
4.750%, 03/01/2030 (A)		600		637
4.500%, 08/15/2030 (A)		740		780
4.250%, 02/01/2031 (A)		6,791		7,045

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
CenturyLink
7.500%, 04/01/2024	$	1,480	$	1,658
6.875%, 01/15/2028		638		732
5.625%, 04/01/2025		325		349
5.125%, 12/15/2026 (A)		4,261		4,458
4.500%, 01/15/2029 (A)		1,315		1,340
4.000%, 02/15/2027 (A)		1,131		1,169
Cincinnati Bell
8.000%, 10/15/2025 (A)		2,391		2,560
7.000%, 07/15/2024 (A)		455		470
Cinemark USA
8.750%, 05/01/2025 (A)		191		206
Clear Channel International BV
6.625%, 08/01/2025 (A)		2,307		2,405
Clear Channel Worldwide Holdings
9.250%, 02/15/2024		4,125		4,120
5.125%, 08/15/2027 (A)		2,930		2,959
Consolidated Communications
6.500%, 10/01/2028 (A)		3,958		4,290
CSC Holdings LLC
7.500%, 04/01/2028 (A)		2,140		2,386
6.500%, 02/01/2029 (A)		695		777
5.750%, 01/15/2030 (A)		3,039		3,290
5.500%, 05/15/2026 (A)		2,400		2,496
4.625%, 12/01/2030 (A)		2,981		3,052
3.375%, 02/15/2031 (A)		1,404		1,365
Cumulus Media New Holdings
6.750%, 07/01/2026 (A)		7,511		7,323
Diamond Sports Group LLC
6.625%, 08/15/2027 (A)		4,245		2,434
5.375%, 08/15/2026 (A)		9,170		7,107
Digicel
6.750%, 03/01/2023 (A)		1,730		1,107
Digicel Group 0.5
10.000%, 04/01/2024		588		466
Digicel Holdings Bermuda
8.750%, 05/25/2024 (A)		1,363		1,387
DISH DBS
7.750%, 07/01/2026		2,360		2,693
7.375%, 07/01/2028		3,192		3,463
5.875%, 11/15/2024		4,621		4,915
5.000%, 03/15/2023		2,935		3,052
DKT Finance ApS
9.375%, 06/17/2023 (A)		2,964		3,053
Entercom Media
7.250%, 11/01/2024 (A)		6,372		6,117
6.500%, 05/01/2027 (A)		375		361
Frontier Communications
11.000%, 09/15/2025 (B)		1,520		747
10.500%, 09/15/2022 (B)		1,655		815
7.125%, 01/15/2023 (B)		1,595		738
6.875%, 01/15/2025 (B)		4,255		1,968

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   147

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
6.750%, 05/01/2029 (A)	$	803	$	831
5.875%, 10/15/2027 (A)		367		386
5.000%, 05/01/2028 (A)		1,874		1,902
GCI LLC
4.750%, 10/15/2028 (A)		482		507
Getty Images
9.750%, 03/01/2027 (A)		2,935		3,067
Gray Television
7.000%, 05/15/2027 (A)		2,388		2,633
4.750%, 10/15/2030 (A)		1,034		1,047
iHeartCommunications (C)
8.375%, 05/01/2027		4,835		5,129
6.375%, 05/01/2026		156		166
5.250%, 08/15/2027 (A)		2,652		2,718
4.750%, 01/15/2028 (A)		1,347		1,360
Intelsat Jackson Holdings
9.750%, 07/15/2025 (A)(B)		4,037		2,866
8.500%, 10/15/2024 (A)(B)		3,082		2,173
5.500%, 08/01/2023 (B)		910		612
Intelsat Luxembourg
8.125%, 06/01/2023 (B)		1,010		44
LCPR Senior Secured Financing DAC
6.750%, 10/15/2027 (A)		5,916		6,431
Level 3 Financing
5.375%, 01/15/2024		550		554
5.375%, 05/01/2025		5,216		5,355
4.625%, 09/15/2027 (A)		2,269		2,361
4.250%, 07/01/2028 (A)		965		996
3.625%, 01/15/2029 (A)		4,396		4,401
Live Nation Entertainment
6.500%, 05/15/2027 (A)		373		413
5.625%, 03/15/2026 (A)		466		471
4.875%, 11/01/2024 (A)		4,520		4,486
4.750%, 10/15/2027 (A)		1,818		1,793
McGraw-Hill Global Education Holdings LLC
7.875%, 05/15/2024 (A)		3,545		3,165
Meredith
6.875%, 02/01/2026		850		845
Midcontinent Communications
5.375%, 08/15/2027 (A)		1,042		1,090
MYT Holding LLC
7.500%, 09/25/2025 (A)		422		423
Netflix
5.875%, 11/15/2028		863		1,042
5.375%, 11/15/2029 (A)		275		328
4.875%, 04/15/2028		1,862		2,132
4.875%, 06/15/2030 (A)		2,657		3,076
Nexstar Broadcasting
5.625%, 07/15/2027 (A)		7,352		7,839
4.750%, 11/01/2028 (A)		2,510		2,583
Photo Holdings Merger Sub
8.500%, 10/01/2026 (A)		905		910

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Radiate Holdco LLC
6.500%, 09/15/2028 (A)	$	882	$	937
4.500%, 09/15/2026 (A)		882		917
Sable International Finance
5.750%, 09/07/2027 (A)		3,388		3,612
Salem Media Group
6.750%, 06/01/2024 (A)		5,855		5,123
Scripps Escrow
5.875%, 07/15/2027 (A)		1,114		1,122
Sinclair Television Group
5.625%, 08/01/2024 (A)		750		764
5.500%, 03/01/2030 (A)		820		821
5.125%, 02/15/2027 (A)		4,180		4,107
4.125%, 12/01/2030 (A)		5,875		5,882
Sirius XM Radio
5.500%, 07/01/2029 (A)		1,675		1,838
5.375%, 07/15/2026 (A)		2,988		3,108
5.000%, 08/01/2027 (A)		1,971		2,075
4.625%, 07/15/2024 (A)		560		580
4.125%, 07/01/2030 (A)		3,992		4,177
SoftBank Group
6.000%, VAR USD ICE Swap 11:00 NY 5 Yr+4.226%(D)		950		925
5.125%, 09/19/2027		799		833
Sprint
7.875%, 09/15/2023		2,793		3,221
7.625%, 02/15/2025		7,815		9,358
7.625%, 03/01/2026		2,559		3,182
7.250%, 09/15/2021		2,180		2,270
7.125%, 06/15/2024		1,605		1,868
Sprint Capital
8.750%, 03/15/2032		3,233		4,965
TEGNA
4.750%, 03/15/2026 (A)		112		119
4.625%, 03/15/2028 (A)		2,684		2,741
Telecom Italia
5.303%, 05/30/2024 (A)		520		565
Telecom Italia Capital
6.375%, 11/15/2033		424		507
6.000%, 09/30/2034		2,199		2,601
Telenet Finance Luxembourg Notes Sar
5.500%, 03/01/2028 (A)		3,600		3,854
Telesat Canada
6.500%, 10/15/2027 (A)		7,629		7,858
4.875%, 06/01/2027 (A)		1,793		1,824
Terrier Media Buyer
8.875%, 12/15/2027 (A)		7,757		8,378
T-Mobile USA
6.500%, 01/15/2026		2,195		2,280
4.750%, 02/01/2028		4,835		5,186
4.375%, 04/15/2040 (A)		88		107
3.500%, 04/15/2025 (A)		159		175

  148   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Townsquare Media
6.500%, 04/01/2023 (A)	$	2,029	$	1,968
Trilogy International Partners LLC
8.875%, 05/01/2022 (A)		1,295		1,224
TripAdvisor
7.000%, 07/15/2025 (A)		34		37
U.S. Cellular
6.700%, 12/15/2033		2,575		3,373
Univision Communications
9.500%, 05/01/2025 (A)		2,480		2,747
6.625%, 06/01/2027 (A)		1,395		1,489
Urban One
8.750%, 12/15/2022 (A)		9,726		9,410
Videotron
5.375%, 06/15/2024 (A)		730		811
5.125%, 04/15/2027 (A)		955		1,011
Virgin Media Finance
5.000%, 07/15/2030 (A)		779		818
Virgin Media Secured Finance
5.500%, 05/15/2029 (A)		1,983		2,152
4.500%, 08/15/2030 (A)		757		795
Virgin Media Vendor Financing Notes IV DAC
5.000%, 07/15/2028 (A)		2,543		2,619
Windstream Escrow LLC
7.750%, 08/15/2028 (A)		6,193		6,270
WMG Acquisition
3.000%, 02/15/2031 (A)		749		730
Zayo Group Holdings
6.125%, 03/01/2028 (A)		865		911
4.000%, 03/01/2027 (A)		1,731		1,722
				356,447
Consumer Discretionary — 12.9%
1011778 BC ULC / New Red Finance Inc
4.375%, 01/15/2028 (A)		898		927
4.000%, 10/15/2030 (A)		2,530		2,521
3.500%, 02/15/2029 (A)		163		163
Abercrombie & Fitch Management
8.750%, 07/15/2025 (A)		1,437		1,563
Adelphia Communications (Escrow Security)
10.250%, 06/15/2011 (B)(E)		125		1
7.875%, 01/15/2009 (B)(E)		250		–
7.750%, 05/01/2009 (B)(E)		75		–
Adelphia Communications (Escrow Security), Ser B
9.500%, 02/15/2004 (B)(E)		25		–
Adient Global Holdings, Ltd
. 4.875%, 08/15/2026 (A)		690		696
Adient US LLC
9.000%, 04/15/2025 (A)		227		253
7.000%, 05/15/2026 (A)		540		585

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
American Axle & Manufacturing
6.875%, 07/01/2028	$	1,584	$	1,679
6.500%, 04/01/2027		1,760		1,839
6.250%, 04/01/2025		720		745
6.250%, 03/15/2026		660		675
American Builders & Contractors Supply
4.000%, 01/15/2028 (A)		2,730		2,832
American Greetings
8.750%, 04/15/2025 (A)		5,700		5,500
Aramark Services
5.000%, 02/01/2028 (A)		745		783
Asbury Automotive Group
4.750%, 03/01/2030		475		500
4.500%, 03/01/2028		2,711		2,806
Ashton Woods USA LLC
6.625%, 01/15/2028 (A)		4,021		4,152
Aventine (Escrow Security)
0.000%, 10/15/2049 (B)(E)(F)		2,600		–
Bally’s
6.750%, 06/01/2027 (A)		2,070		2,163
BorgWarner
5.000%, 10/01/2025 (A)		362		424
Boyd Gaming
8.625%, 06/01/2025 (A)		753		837
6.000%, 08/15/2026		530		552
Boyne USA
7.250%, 05/01/2025 (A)		370		390
Brinker International
3.875%, 05/15/2023		995		985
Brookfield Residential Properties
4.875%, 02/15/2030 (A)		1,081		1,068
Burlington Coat Factory Warehouse
6.250%, 04/15/2025 (A)		894		950
Caesars Entertainment
8.125%, 07/01/2027 (A)		1,400		1,540
6.250%, 07/01/2025 (A)		3,149		3,352
Caesars Resort Collection LLC
5.250%, 10/15/2025 (A)		4,475		4,475
Carnival
11.500%, 04/01/2023 (A)		5,093		5,800
10.500%, 02/01/2026 (A)		1,254		1,483
9.875%, 08/01/2027 (A)		585		686
Carvana
5.625%, 10/01/2025 (A)		3,295		3,311
CD&R Smokey Buyer
6.750%, 07/15/2025 (A)		332		356
Cedar Fair
5.500%, 05/01/2025 (A)		285		299
5.375%, 06/01/2024		2,145		2,156
5.250%, 07/15/2029		110		113
Cengage Learning
9.500%, 06/15/2024 (A)		5,695		5,282

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   149

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Century Communities
6.750%, 06/01/2027	$	624	$	669
5.875%, 07/15/2025		1,771		1,847
Cirsa Finance International Sarl
7.875%, 12/20/2023 (A)		2,124		2,113
Claire’s Stores Inc (Escrow Security)
9.000%, 03/15/2019 (B)		1,480		–
Clarios Global
8.500%, 05/15/2027 (A)		5,746		6,184
6.750%, 05/15/2025 (A)		2,200		2,366
6.250%, 05/15/2026 (A)		2,270		2,412
Constellation Merger Sub
8.500%, 09/15/2025 (A)		853		744
Cooper-Standard Automotive
13.000%, 06/01/2024 (A)		520		589
5.625%, 11/15/2026 (A)		1,485		1,198
Core & Main
6.125%, 08/15/2025 (A)		2,772		2,841
Core & Main Holdings
8.625%cash/9.375% PIK, 09/15/2024 (A)		2,640		2,703
CSC Holdings LLC
5.875%, 09/15/2022		152		162
Dana
5.625%, 06/15/2028		704		759
5.375%, 11/15/2027		958		1,019
Dana Financing Luxembourg Sarl
6.500%, 06/01/2026 (A)		1,245		1,303
Diamond Resorts International
10.750%, 09/01/2024 (A)		3,020		2,892
eG Global Finance
8.500%, 10/30/2025 (A)		842		907
6.750%, 02/07/2025 (A)		4,175		4,321
Enterprise Development Authority
12.000%, 07/15/2024 (A)		2,271		2,544
ESH Hospitality
4.625%, 10/01/2027 (A)		1,225		1,246
Expedia Group Inc
7.000%, 05/01/2025 (A)		169		185
6.250%, 05/01/2025 (A)		282		322
Ferrellgas
10.000%, 04/15/2025 (A)		559		616
Fontainebleau Las Vegas
11.000%, 06/15/2015 (A)(B)		3,481		–
Ford Motor
9.625%, 04/22/2030		745		1,037
9.000%, 04/22/2025		2,176		2,644
8.500%, 04/21/2023		5,080		5,694
Ford Motor Credit LLC
5.596%, 01/07/2022		1,101		1,133
5.584%, 03/18/2024		105		113
5.125%, 06/16/2025		970		1,047

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
5.113%, 05/03/2029	$	2,625	$	2,841
4.687%, 06/09/2025		1,245		1,323
4.542%, 08/01/2026		1,481		1,553
4.271%, 01/09/2027		485		502
4.140%, 02/15/2023		395		405
4.134%, 08/04/2025		1,600		1,656
4.125%, 08/17/2027		3,294		3,405
4.063%, 11/01/2024		1,577		1,640
4.000%, 11/13/2030		403		406
3.815%, 11/02/2027		3,425		3,450
3.813%, 10/12/2021		930		941
3.810%, 01/09/2024		225		230
3.375%, 11/13/2025		332		335
3.370%, 11/17/2023		794		804
3.350%, 11/01/2022		265		269
3.096%, 05/04/2023		448		451
3.087%, 01/09/2023		57		57
2.979%, 08/03/2022		1,105		1,109
1.104%, VAR ICE LIBOR USD 3 Month+0.880%, 10/12/2021		1,380		1,357
Ford Motor Credit LLC MTN
4.389%, 01/08/2026		210		218
Gap
8.875%, 05/15/2027 (A)		130		151
8.625%, 05/15/2025 (A)		2,725		3,028
8.375%, 05/15/2023 (A)		455		515
General Motors Co
6.800%, 10/01/2027		139		179
6.125%, 10/01/2025		277		334
G-III Apparel Group
7.875%, 08/15/2025 (A)		3,340		3,607
Golden Nugget
6.750%, 10/15/2024 (A)		1,195		1,168
Group 1 Automotive
4.000%, 08/15/2028 (A)		44		45
GrubHub Holdings
5.500%, 07/01/2027 (A)		1,600		1,676
Guitar Center
13.000%cash/8.000% PIK, 04/15/2022 (A)(B)		14,901		7,152
13.000%, 04/15/2022 (A)(B)(E)		175		65
10.000%, 05/15/2022 (A)(B)(E)		95		95
Guitar Center Escrow Issuer
9.500%, 10/15/2021 (A)(B)		775		760
Hanesbrands
4.875%, 05/15/2026 (A)		370		398
4.625%, 05/15/2024 (A)		3,861		4,059
Hillman Group
6.375%, 07/15/2022 (A)		5,241		5,201
Hilton Domestic Operating
5.750%, 05/01/2028 (A)		171		184
5.375%, 05/01/2025 (A)		114		121

  150   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
5.125%, 05/01/2026	$	3,574	$	3,696
4.875%, 01/15/2030		470		507
4.000%, 05/01/2031 (A)		102		107
3.750%, 05/01/2029 (A)		171		176
Hilton Worldwide Finance LLC
4.875%, 04/01/2027		148		154
4.625%, 04/01/2025		187		191
Houghton Mifflin Harcourt Publishers
9.000%, 02/15/2025 (A)		5,295		5,242
Hyatt Hotels
5.750%, 04/23/2030		135		161
5.375%, 04/23/2025		135		151
IHO Verwaltungs GmbH
6.375%cash/7.125% PIK, 05/15/2029 (A)		835		893
6.000%cash/6.750% PIK, 05/15/2027 (A)		850		895
Inn of the Mountain Gods Resort & Casino
9.250%cash/0% PIK, 11/30/2020 (B)(E)		4,084		4,063
International Game Technology
6.500%, 02/15/2025 (A)		635		700
6.250%, 01/15/2027 (A)		4,233		4,709
5.250%, 01/15/2029 (A)		200		212
IRB Holding
7.000%, 06/15/2025 (A)		1,108		1,205
6.750%, 02/15/2026 (A)		7,755		8,026
Ken Garff Automotive LLC
4.875%, 09/15/2028 (A)		442		449
L Brands
9.375%, 07/01/2025 (A)		108		132
7.600%, 07/15/2037		60		62
7.500%, 06/15/2029		542		598
6.875%, 07/01/2025 (A)		332		359
6.875%, 11/01/2035		75		82
6.750%, 07/01/2036		2,607		2,822
6.625%, 10/01/2030 (A)		2,383		2,610
Liberty Interactive LLC
8.250%, 02/01/2030		6,294		6,892
Lions Gate Capital Holdings LLC
6.375%, 02/01/2024 (A)		3,615		3,715
Lithia Motors
4.625%, 12/15/2027 (A)		2,350		2,497
4.375%, 01/15/2031 (A)		348		369
Macy’s
8.375%, 06/15/2025 (A)		4,962		5,408
Marriott International Inc/MD
5.750%, 05/01/2025		175		203
4.625%, 06/15/2030		202		233
Marriott Ownership Resorts
6.500%, 09/15/2026		920		966
6.125%, 09/15/2025 (A)		381		405

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Mattamy Group
4.625%, 03/01/2030 (A)	$	2,872	$	3,008
Mattel
6.750%, 12/31/2025 (A)		1,920		2,019
5.875%, 12/15/2027 (A)		300		331
Melco Resorts Finance
5.250%, 04/26/2026		1,360		1,409
MGM Resorts International
6.750%, 05/01/2025		4,519		4,855
6.000%, 03/15/2023		2,515		2,690
5.750%, 06/15/2025		1,411		1,526
5.500%, 04/15/2027		2,250		2,412
Millennium (Escrow Security)
7.625%, 11/15/2026 (B)(E)		200		–
NCL
12.250%, 05/15/2024 (A)		1,880		2,230
Neiman Marcus Group
0.000%, 10/15/2021		2,835		638
Newell Brands
5.875%, 04/01/2036		130		156
4.875%, 06/01/2025		75		83
4.700%, 04/01/2026		3,150		3,394
Nordstrom
8.750%, 05/15/2025 (A)		420		470
4.375%, 04/01/2030		130		125
Peninsula Pacific Entertainment LLC
8.500%, 11/15/2027 (A)		4,244		4,515
Penn National Gaming
5.625%, 01/15/2027 (A)		2,043		2,125
PetSmart
8.875%, 06/01/2025 (A)		370		373
7.125%, 03/15/2023 (A)		5,375		5,308
5.875%, 06/01/2025 (A)		875		888
PM General Purchaser LLC
9.500%, 10/01/2028 (A)		373		407
QVC
4.750%, 02/15/2027		867		895
4.450%, 02/15/2025		1,640		1,716
4.375%, 09/01/2028		442		452
Royal Caribbean Cruises
9.125%, 06/15/2023 (A)		1,222		1,323
5.250%, 11/15/2022		1,378		1,357
Royal Caribbean Cruises Ltd
11.500%, 06/01/2025 (A)		733		861
10.875%, 06/01/2023 (A)		4,251		4,809
Scientific Games International
8.625%, 07/01/2025 (A)		1,965		2,122
8.250%, 03/15/2026 (A)		2,306		2,473
7.250%, 11/15/2029 (A)		745		791
7.000%, 05/15/2028 (A)		1,355		1,411
SeaWorld Parks & Entertainment
9.500%, 08/01/2025 (A)		3,015		3,271

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   151

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Service International
7.500%, 04/01/2027	$	867	$	1,049
5.125%, 06/01/2029		82		91
4.625%, 12/15/2027		970		1,028
3.375%, 08/15/2030		278		285
Shea Homes
4.750%, 02/15/2028 (A)		1,081		1,119
4.750%, 04/01/2029 (A)		1,323		1,376
Silversea Cruise Finance
7.250%, 02/01/2025 (A)		2,772		2,843
Six Flags Entertainment
5.500%, 04/15/2027 (A)		110		111
4.875%, 07/31/2024 (A)		6,452		6,428
Six Flags Theme Parks
7.000%, 07/01/2025 (A)		1,287		1,395
Specialty Building Products Holdings LLC
6.375%, 09/30/2026 (A)		1,600		1,664
Speedway Motorsports LLC
4.875%, 11/01/2027 (A)		1,360		1,340
SRS Distribution
8.250%, 07/01/2026 (A)		2,249		2,384
Staples
10.750%, 04/15/2027 (A)		2,230		2,096
7.500%, 04/15/2026 (A)		2,659		2,676
Stars Group Holdings BV
7.000%, 07/15/2026 (A)		405		428
Station Casinos LLC
5.000%, 10/01/2025 (A)		1,148		1,157
4.500%, 02/15/2028 (A)		4,040		3,979
Sugarhouse HSP Gaming Prop Mezz LP
5.875%, 05/15/2025 (A)		5,505		5,367
Tempur Sealy International
5.625%, 10/15/2023		480		488
5.500%, 06/15/2026		825		859
Tenneco
7.875%, 01/15/2029 (A)		242		267
5.375%, 12/15/2024		415		376
5.000%, 07/15/2026		1,987		1,787
Vail Resorts
6.250%, 05/15/2025 (A)		224		240
Vista Outdoor
5.875%, 10/01/2023		1,605		1,617
White Capital Buyer LLC
6.875%, 10/15/2028 (A)		188		200
William Carter
5.625%, 03/15/2027 (A)		340		358
Wolverine Escrow LLC
13.125%, 11/15/2027 (A)		375		274
9.000%, 11/15/2026 (A)		970		815
Wolverine World Wide
6.375%, 05/15/2025 (A)		901		955

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
WW International
8.625%, 12/01/2025 (A)	$	2,605	$	2,719
Wynn Las Vegas LLC
5.500%, 03/01/2025 (A)		2,166		2,209
5.250%, 05/15/2027 (A)		635		641
4.250%, 05/30/2023 (A)		245		246
Wynn Resorts Finance LLC
7.750%, 04/15/2025 (A)		2,825		3,047
5.125%, 10/01/2029 (A)		514		523
Yum! Brands
7.750%, 04/01/2025 (A)		180		199
6.875%, 11/15/2037		1,840		2,318
5.350%, 11/01/2043		180		200
3.625%, 03/15/2031		1,266		1,266
				345,495
Consumer Staples — 6.7%
AHP Health Partners
9.750%, 07/15/2026 (A)		2,655		2,907
Albertsons
5.875%, 02/15/2028 (A)		623		673
5.750%, 03/15/2025		489		504
4.875%, 02/15/2030 (A)		285		312
4.625%, 01/15/2027 (A)		3,427		3,613
3.500%, 02/15/2023 (A)		200		205
3.500%, 03/15/2029 (A)		792		790
3.250%, 03/15/2026 (A)		792		800
Allied Universal Holdco LLC
9.750%, 07/15/2027 (A)		1,151		1,277
6.625%, 07/15/2026 (A)		1,564		1,681
Ashtead Capital
4.375%, 08/15/2027 (A)		385		405
B&G Foods
5.250%, 04/01/2025		1,170		1,214
Bausch Health
9.000%, 12/15/2025 (A)		3,430		3,769
7.250%, 05/30/2029 (A)		295		326
7.000%, 03/15/2024 (A)		885		912
7.000%, 01/15/2028 (A)		1,460		1,577
6.250%, 02/15/2029 (A)		6,429		6,815
6.125%, 04/15/2025 (A)		3,911		4,025
5.250%, 01/30/2030 (A)		5,598		5,718
5.250%, 02/15/2031 (A)		3,081		3,116
5.000%, 01/30/2028 (A)		1,771		1,771
5.000%, 02/15/2029 (A)		879		887
Bausch Health Americas
9.250%, 04/01/2026 (A)		365		405
8.500%, 01/31/2027 (A)		1,291		1,420
Capitol Investment Merger Sub 2 LLC
10.000%, 08/01/2024 (A)		5,510		5,868
Central Garden & Pet
5.125%, 02/01/2028		1,515		1,612

  152   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.125%, 10/15/2030	$	1,655	$	1,743
Chobani LLC
7.500%, 04/15/2025 (A)		4,102		4,287
4.625%, 11/15/2028 (A)		2,090		2,158
Clearwater Seafoods
6.875%, 05/01/2025 (A)		2,106		2,201
Coty Inc
6.500%, 04/15/2026 (A)		375		366
Dole Food
7.250%, 06/15/2025 (A)		1,761		1,783
Edgewell Personal Care
5.500%, 06/01/2028 (A)		1,257		1,351
Energizer Holdings
7.750%, 01/15/2027 (A)		2,011		2,192
4.750%, 06/15/2028 (A)		536		561
4.375%, 03/31/2029 (A)		1,831		1,868
Envision Healthcare
8.750%, 10/15/2026 (A)		1,585		940
Fresh Market
9.750%, 05/01/2023 (A)		1,764		1,729
GEMS MENASA Cayman
7.125%, 07/31/2026 (A)		1,543		1,566
Global Medical Response
6.500%, 10/01/2025 (A)		1,937		1,995
High Ridge Brands
8.875%, 03/15/2025 (A)(B)		800		23
JBS Investments II GmbH
7.000%, 01/15/2026 (A)		2,225		2,396
JBS USA LUX
5.750%, 06/15/2025 (A)		135		139
5.500%, 01/15/2030 (A)		2,347		2,638
Kraft Heinz Foods
5.000%, 07/15/2035		6,092		7,184
4.375%, 06/01/2046		1,793		1,915
4.250%, 03/01/2031 (A)		1,126		1,251
3.000%, 06/01/2026		3,236		3,377
Lamb Weston Holdings
4.875%, 11/01/2026 (A)		575		598
4.875%, 05/15/2028 (A)		218		242
4.625%, 11/01/2024 (A)		2,515		2,616
Legacy LifePoint Health LLC
6.750%, 04/15/2025 (A)		612		653
4.375%, 02/15/2027 (A)		8,326		8,368
LifePoint Health
5.375%, 01/15/2029 (A)		1,143		1,143
MPH Acquisition Holdings LLC
5.750%, 11/01/2028 (A)		1,378		1,350
New Albertsons
8.700%, 05/01/2030		2,229		2,797
Ortho-Clinical Diagnostics
7.375%, 06/01/2025 (A)		1,300		1,391
7.250%, 02/01/2028 (A)		4,064		4,328

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
P&L Development LLC
7.750%, 11/15/2025 (A)	$	1,160	$	1,224
Performance Food Group
6.875%, 05/01/2025 (A)		80		86
5.500%, 10/15/2027 (A)		565		601
Pilgrim’s Pride
5.875%, 09/30/2027 (A)		2,885		3,101
Post Holdings
5.750%, 03/01/2027 (A)		1,792		1,886
5.625%, 01/15/2028 (A)		1,725		1,835
5.500%, 12/15/2029 (A)		857		930
4.625%, 04/15/2030 (A)		234		244
Prime Security Services Borrower LLC
5.750%, 04/15/2026 (A)		1,663		1,804
3.375%, 08/31/2027 (A)		955		943
Primo Water Holdings
5.500%, 04/01/2025 (A)		3,509		3,627
Radiology Partners
9.250%, 02/01/2028 (A)		2,079		2,266
Rite Aid
8.000%, 11/15/2026 (A)		3,945		4,004
7.700%, 02/15/2027		1,620		1,353
7.500%, 07/01/2025 (A)		526		535
Sabre Global
9.250%, 04/15/2025 (A)		697		815
7.375%, 09/01/2025 (A)		999		1,076
5.250%, 11/15/2023 (A)		2,042		2,055
Sigma Holdco BV
7.875%, 05/15/2026 (A)		5,433		5,433
Simmons Foods
5.750%, 11/01/2024 (A)		3,225		3,298
Spectrum Brands
5.750%, 07/15/2025		745		769
5.500%, 07/15/2030 (A)		1,303		1,420
5.000%, 10/01/2029 (A)		155		167
Surgery Center Holdings
6.750%, 07/01/2025 (A)		1,404		1,425
Team Health Holdings
6.375%, 02/01/2025 (A)		3,760		2,897
TreeHouse Foods
6.000%, 02/15/2024 (A)		1,095		1,119
4.000%, 09/01/2028		65		66
US Foods
6.250%, 04/15/2025 (A)		889		946
5.875%, 06/15/2024 (A)		1,545		1,566
Vector Group
10.500%, 11/01/2026 (A)		6,015		6,451
Verscend Escrow
9.750%, 08/15/2026 (A)		1,782		1,936

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   153

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
West Street Merger Sub
6.375%, 09/01/2025 (A)	$	1,730	$	1,775
				177,404
Energy — 9.6%
Antero Midstream Partners
7.875%, 05/15/2026 (A)		1,473		1,477
5.750%, 03/01/2027 (A)		2,186		1,992
5.750%, 01/15/2028 (A)		502		452
5.375%, 09/15/2024		1,540		1,440
Antero Resources
5.625%, 06/01/2023		1,020		913
5.125%, 12/01/2022		2,965		2,802
Apache
5.100%, 09/01/2040		2,350		2,428
4.875%, 11/15/2027		1,807		1,887
4.625%, 11/15/2025		737		766
4.375%, 10/15/2028		451		460
Archrock Partners
6.250%, 04/01/2028 (A)		2,858		2,947
Ascent Resources Utica Holdings LLC
9.000%, 11/01/2027 (A)		1,106		1,167
7.000%, 11/01/2026 (A)		1,220		1,147
Baytex Energy
8.750%, 04/01/2027 (A)		600		282
Blue Racer Midstream LLC
6.625%, 07/15/2026 (A)		250		235
6.125%, 11/15/2022 (A)		4,147		4,147
Buckeye Partners
4.500%, 03/01/2028 (A)		350		350
4.125%, 03/01/2025 (A)		350		349
4.125%, 12/01/2027		480		475
Callon Petroleum
8.250%, 07/15/2025		330		130
6.250%, 04/15/2023		445		212
Cenovus Energy
5.375%, 07/15/2025		612		673
Cheniere Corpus Christi Holdings LLC
5.875%, 03/31/2025		850		975
Cheniere Energy
4.625%, 10/15/2028 (A)		1,682		1,745
Cheniere Energy Partners
5.625%, 10/01/2026		3,937		4,109
4.500%, 10/01/2029		10,089		10,513
Chesapeake Energy
11.500%, 01/01/2025 (A)(B)		1,373		206
7.500%, 10/01/2026 (B)		4,075		245
7.000%, 10/01/2024 (B)		1,790		107
Citgo Holding
9.250%, 08/01/2024 (A)		2,250		2,008
CITGO Petroleum
6.250%, 08/15/2022 (A)		3,184		3,108

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
CNX Midstream Partners
6.500%, 03/15/2026 (A)	$	3,785	$	3,842
CNX Resources
7.250%, 03/14/2027 (A)		4,585		4,847
6.000%, 01/15/2029 (A)		1,842		1,860
Comstock Resources
9.750%, 08/15/2026		3,640		3,849
7.500%, 05/15/2025 (A)		914		912
Continental Resources
5.750%, 01/15/2031 (A)		1,014		1,088
Crestwood Midstream Partners
6.250%, 04/01/2023		690		693
5.750%, 04/01/2025		2,905		2,883
5.625%, 05/01/2027 (A)		435		418
CVR Energy
5.750%, 02/15/2028 (A)		1,350		1,131
5.250%, 02/15/2025 (A)		297		261
DCP Midstream Operating
8.125%, 08/16/2030		1,990		2,408
5.625%, 07/15/2027		750		812
5.375%, 07/15/2025		268		289
5.125%, 05/15/2029		896		950
Delek Logistics Partners
6.750%, 05/15/2025		1,462		1,345
Devon Energy
7.950%, 04/15/2032		1,327		1,767
Encana, Ser 2004, 110178
6.500%, 08/15/2034		105		113
Endeavor Energy Resources
6.625%, 07/15/2025 (A)		232		247
Energy Transfer
5.500%, 06/01/2027		2,863		2,928
EnLink Midstream LLC
5.375%, 06/01/2029		7,436		7,046
EnLink Midstream Partners
4.850%, 07/15/2026		140		131
4.400%, 04/01/2024		620		598
4.150%, 06/01/2025		445		409
Enviva Partners
6.500%, 01/15/2026 (A)		4,247		4,538
EP Energy (Escrow)
0.000%, 05/01/2021		1,728		–
0.000%, 06/15/2023		1,185		–
0.000%, 02/15/2025		1,159		–
EQM Midstream Partners
6.500%, 07/01/2027 (A)		1,116		1,230
6.000%, 07/01/2025 (A)		1,445		1,539
EQT
8.750%, 02/01/2030		939		1,186
7.875%, 02/01/2025		4,042		4,628
3.900%, 10/01/2027		230		228

  154   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Equities
5.000%, 01/15/2029	$	162	$	171
Exterran Energy Solutions
8.125%, 05/01/2025		3,815		3,110
Extraction Oil & Gas
7.375%, 05/15/2024 (A)(B)		6,623		1,590
5.625%, 02/01/2026 (A)(B)		4,400		1,100
Genesis Energy
7.750%, 02/01/2028		373		343
6.500%, 10/01/2025		1,476		1,358
6.250%, 05/15/2026		70		64
Great Western Petroleum LLC
9.000%, 09/30/2021 (A)		2,974		1,695
Gulfport Energy
6.375%, 05/15/2025 (B)		311		188
6.375%, 01/15/2026 (B)		780		470
6.000%, 10/15/2024 (B)		470		283
Hess Midstream Operations
5.625%, 02/15/2026 (A)		3,732		3,853
Hilcorp Energy I
6.250%, 11/01/2028 (A)		1,366		1,352
5.750%, 10/01/2025 (A)		2,626		2,567
5.000%, 12/01/2024 (A)		2,490		2,428
Holly Energy Partners
5.000%, 02/01/2028 (A)		295		290
Jupiter Resources
13.000%, 01/31/2024 (E)		676		608
Laredo Petroleum
10.125%, 01/15/2028		2,688		1,799
9.500%, 01/15/2025		5,155		3,505
Marathon Oil
6.600%, 10/01/2037		1,183		1,400
MEG Energy
7.125%, 02/01/2027 (A)		2,851		2,794
7.000%, 03/31/2024 (A)		262		263
6.500%, 01/15/2025 (A)		608		620
Moss Creek Resources Holdings
10.500%, 05/15/2027 (A)		574		399
7.500%, 01/15/2026 (A)		919		625
Motiva Enterprises
6.850%, 01/15/2040 (A)		1,713		2,035
Nabors Industries
7.250%, 01/15/2026 (A)		245		137
5.750%, 02/01/2025		680		249
New Fortress Energy
6.750%, 09/15/2025 (A)		983		1,044
NGL Energy Partners
7.500%, 11/01/2023		890		449
6.125%, 03/01/2025		4,839		1,996
Noble Holding International
8.950%, 04/01/2045 (B)		3,100		15
7.750%, 01/15/2024 (B)		2,751		14

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Northern Oil and Gas
8.500%cash/9.500% PIK, 05/15/2023	$	1,655	$	1,394
NRG Energy
12.000%, 09/25/2025 (E)		1,101		1,156
NuStar Logistics
6.375%, 10/01/2030		1,092		1,185
6.000%, 06/01/2026		360		379
5.750%, 10/01/2025		1,092		1,149
5.625%, 04/28/2027		80		82
Occidental Petroleum
8.875%, 07/15/2030		1,856		2,095
8.500%, 07/15/2027		1,900		2,109
8.000%, 07/15/2025		1,072		1,176
6.625%, 09/01/2030		2,310		2,413
6.450%, 09/15/2036		1,425		1,393
6.375%, 09/01/2028		1,966		2,004
5.875%, 09/01/2025		1,176		1,188
5.550%, 03/15/2026		2,855		2,834
4.625%, 06/15/2045		1,875		1,556
4.500%, 07/15/2044		406		335
4.400%, 04/15/2046		155		131
3.500%, 08/15/2029		355		311
3.400%, 04/15/2026		1,277		1,156
3.200%, 08/15/2026		4,728		4,184
3.125%, 02/15/2022		2,594		2,587
2.900%, 08/15/2024		1,089		1,016
2.700%, 08/15/2022		12,979		12,788
2.700%, 02/15/2023		1,843		1,775
Ovintiv
8.125%, 09/15/2030		170		196
Parkland
5.875%, 07/15/2027 (A)		1,970		2,118
Parsley Energy LLC
5.375%, 01/15/2025 (A)		310		319
5.250%, 08/15/2025 (A)		505		524
PBF Holding LLC
9.250%, 05/15/2025 (A)		170		169
6.000%, 02/15/2028 (A)		325		171
PDC Energy
5.750%, 05/15/2026		3,255		3,239
Peabody Energy
6.375%, 03/31/2025 (A)		1,094		274
Precision Drilling
7.750%, 12/15/2023		645		519
7.125%, 01/15/2026 (A)		325		215
QEP Resources
5.625%, 03/01/2026		1,151		823
Range Resources
4.875%, 05/15/2025		1,142		1,060
Seventy Seven Energy (Escrow Security)
6.500%, 07/15/2022 (B)(E)		395		–

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   155

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Seventy Seven Operating LLC (Escrow Security)
6.625%, 11/15/2019 (B)(E)	$	2,787	$	–
Shelf Drilling Holdings
8.250%, 02/15/2025 (A)		1,365		478
SM Energy
6.625%, 01/15/2027		458		257
6.125%, 11/15/2022		520		463
5.625%, 06/01/2025		405		235
5.000%, 01/15/2024		2,328		1,560
Southwestern Energy
7.750%, 10/01/2027		1,320		1,393
7.500%, 04/01/2026		2,879		2,999
6.450%, 01/23/2025		858		875
Summit Midstream Holdings LLC
5.750%, 04/15/2025		490		309
5.500%, 08/15/2022		2,848		2,328
Sunoco
5.875%, 03/15/2028		2,791		2,986
5.500%, 02/15/2026		2,500		2,592
4.500%, 05/15/2029 (A)		902		930
Tallgrass Energy Partners
7.500%, 10/01/2025 (A)		875		901
6.000%, 03/01/2027 (A)		3,175		3,131
5.500%, 09/15/2024 (A)		185		183
5.500%, 01/15/2028 (A)		115		110
Targa Resources Partners
6.875%, 01/15/2029		516		578
6.500%, 07/15/2027		6,409		6,938
5.875%, 04/15/2026		685		721
5.000%, 01/15/2028		3,156		3,290
4.875%, 02/01/2031 (A)		397		422
4.250%, 11/15/2023		350		352
TerraForm Power Operating LLC
4.750%, 01/15/2030 (A)		225		244
4.250%, 01/31/2023 (A)		3,153		3,256
Transocean
11.500%, 01/30/2027 (A)		1,334		680
8.000%, 02/01/2027 (A)		2,645		979
7.500%, 04/15/2031		1,580		442
Transocean Guardian
5.875%, 01/15/2024 (A)		2,455		1,939
Transocean Pontus
6.125%, 08/01/2025 (A)		3,611		3,372
USA Compression Partners
6.875%, 04/01/2026		3,315		3,430
6.875%, 09/01/2027		2,600		2,723
Valaris
5.850%, 01/15/2044 (B)		3,185		191
5.400%, 12/01/2042 (B)		545		33
4.875%, 06/01/2022 (B)		790		50

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Vine Oil & Gas
9.750%, 04/15/2023 (A)	$	4,234	$	3,408
Western Midstream Operating
5.300%, 02/01/2030		331		354
4.350%, 02/01/2025		2,304		2,299
3.950%, 06/01/2025		405		403
2.074%, VAR ICE LIBOR USD 3 Month+1.850%, 01/13/2023		500		484
WPX Energy
8.250%, 08/01/2023		566		645
5.875%, 06/15/2028		198		213
5.750%, 06/01/2026		356		375
5.250%, 10/15/2027		1,375		1,451
				259,762
Financials — 5.9%
Acrisure LLC
8.125%, 02/15/2024 (A)		3,492		3,667
Advisor Group Holdings
10.750%, 08/01/2027 (A)		2,666		2,876
Air Methods
8.000%, 05/15/2025 (A)		5,061		4,226
Alliant Holdings Intermediate LLC
6.750%, 10/15/2027 (A)		2,257		2,415
Ally Financial
5.750%, 11/20/2025		650		759
AmWINS Group
7.750%, 07/01/2026 (A)		891		962
AssuredPartners
7.000%, 08/15/2025 (A)		3,245		3,350
Athene Holding
6.150%, 04/03/2030		1,749		2,181
Bank of America
6.100%, VAR ICE LIBOR USD 3 Month+3.898%(D)		887		985
5.875%, VAR ICE LIBOR USD 3 Month+2.931%(D)		1,301		1,457
Barclays
7.750%, VAR USD Swap Semi 30/360 5 Yr Curr+4.842%(D)		2,760		2,967
6.125%, VAR US Treas Yield Curve Rate T Note Const Mat 5 Yr+5.867%(D)		1,250		1,344
BGC Partners
3.750%, 10/01/2024		2,265		2,322
Brookfield Property
5.750%, 05/15/2026 (A)		6,941		6,386
Citigroup
5.950%, VAR ICE LIBOR USD 3 Month+3.905%(D)		85		92
5.000%, VAR United States Secured Overnight Financing Rate+3.813%(D)		5,285		5,528

  156   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Credit Agricole
6.875%, VAR USD Swap Semi 30/360 5 Yr Curr+4.319%(A)(D)	$	963	$	1,065
Donnelley Financial Solutions
8.250%, 10/15/2024		935		993
Freedom Mortgage
8.250%, 04/15/2025 (A)		7,685		7,896
8.125%, 11/15/2024 (A)		3,492		3,597
7.625%, 05/01/2026 (A)		360		367
FS Energy & Power Fund
7.500%, 08/15/2023 (A)		1,950		1,843
Genworth Holdings
4.900%, 08/15/2023		442		425
Genworth Mortgage Holdings
6.500%, 08/15/2025 (A)		1,824		1,943
HAT Holdings I LLC
6.000%, 04/15/2025 (A)		2,299		2,454
3.750%, 09/15/2030 (A)		623		637
HUB International
7.000%, 05/01/2026 (A)		1,603		1,673
Hunt
6.250%, 02/15/2026 (A)		1,767		1,787
Intesa Sanpaolo MTN
5.710%, 01/15/2026 (A)		1,685		1,912
Issuer LLC
6.250%, 03/01/2028 (A)		1,299		1,306
Jefferies Finance LLC
6.250%, 06/03/2026 (A)		1,388		1,462
JPMorgan Chase
5.000%, VAR United States Secured Overnight Financing Rate+3.380%(D)		1,299		1,364
4.000%, VAR United States Secured Overnight Financing Rate+2.745%(D)		2,633		2,631
Ladder Capital Finance Holdings LLLP
5.250%, 03/15/2022 (A)		3,157		3,149
5.250%, 10/01/2025 (A)		345		332
4.250%, 02/01/2027 (A)		3,517		3,249
LD Holdings Group LLC
6.500%, 11/01/2025 (A)		3,873		4,076
Lloyds Banking Group
7.500%, VAR USD Swap Semi 30/360 5 Yr Curr+4.760%(D)		3,250		3,583
LPL Holdings
4.625%, 11/15/2027 (A)		3,627		3,718
MGM Growth Properties Operating Partnership
5.750%, 02/01/2027		357		398
5.625%, 05/01/2024		1,335		1,432
4.625%, 06/15/2025 (A)		411		434
4.500%, 09/01/2026		2,214		2,336
4.500%, 01/15/2028		175		182

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.875%, 02/15/2029 (A)	$	396	$	400
Morgan Stanley
5.875%, VAR ICE LIBOR USD 3 Month+4.435%(D)		1,298		1,444
5.300%, VAR ICE LIBOR USD 3 Month+3.160%(D)		872		903
Nationstar Mortgage Holdings
9.125%, 07/15/2026 (A)		2,985		3,205
6.000%, 01/15/2027 (A)		2,312		2,397
5.500%, 08/15/2028 (A)		3,865		3,981
Navient
7.250%, 09/25/2023		792		863
5.000%, 03/15/2027		1,097		1,086
Navient MTN
5.625%, 08/01/2033		500		469
New Residential Investment
6.250%, 10/15/2025 (A)		5,937		5,818
NFP
7.000%, 05/15/2025 (A)		450		482
6.875%, 08/15/2028 (A)		2,186		2,290
NMI Holdings
7.375%, 06/01/2025 (A)		925		1,024
OneMain Finance
7.125%, 03/15/2026		3,980		4,581
6.875%, 03/15/2025		35		40
6.625%, 01/15/2028		500		576
5.375%, 11/15/2029		1,858		2,025
PennyMac Financial Services
5.375%, 10/15/2025 (A)		1,565		1,635
PRA Group
7.375%, 09/01/2025 (A)		2,400		2,576
Quicken Loans LLC
5.250%, 01/15/2028 (A)		1,166		1,233
3.875%, 03/01/2031 (A)		1,025		1,038
3.625%, 03/01/2029 (A)		1,025		1,019
Radian Group
4.875%, 03/15/2027		882		939
4.500%, 10/01/2024		1,508		1,568
Saracen Development LLC
11.000%cash/3.000% PIK, 10/15/2025 (A)(E)		3,707		4,242
SLM
4.200%, 10/29/2025		996		1,043
Starwood Property Trust
5.500%, 11/01/2023 (A)		2,170		2,192
4.750%, 03/15/2025		2,256		2,316
Trilogy
10.000%, 01/31/2024		58		59
United Shore Financial Services LLC
5.500%, 11/15/2025 (A)		3,032		3,188

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   157

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Voya Financial
4.700%, VAR ICE LIBOR USD 3 Month+2.084%, 01/23/2048	$	1,183	$	1,210
WeWork
7.875%, 05/01/2025 (A)		4,935		3,405
				157,008
Health Care — 4.1%
Acadia Healthcare
5.625%, 02/15/2023		2,826		2,840
5.500%, 07/01/2028 (A)		1,201		1,278
5.000%, 04/15/2029 (A)		232		244
AMN Healthcare
4.625%, 10/01/2027 (A)		2,262		2,364
Avantor Funding
4.625%, 07/15/2028 (A)		483		508
Bausch Health
5.875%, 05/15/2023 (A)		9		9
Catalent Pharma Solutions
5.000%, 07/15/2027 (A)		726		764
Centene
5.375%, 06/01/2026 (A)		730		767
4.625%, 12/15/2029		1,290		1,414
4.250%, 12/15/2027		4,088		4,320
3.375%, 02/15/2030		300		314
3.000%, 10/15/2030		2,638		2,777
CHS
8.625%, 01/15/2024 (A)		740		770
6.250%, 03/31/2023		55		56
DaVita
4.625%, 06/01/2030 (A)		310		326
3.750%, 02/15/2031 (A)		5,249		5,229
Emergent BioSolutions
3.875%, 08/15/2028 (A)		4,063		4,109
Encompass Health
4.750%, 02/01/2030		2,257		2,402
4.625%, 04/01/2031		242		258
4.500%, 02/01/2028		2,762		2,890
Endo DAC
9.500%, 07/31/2027 (A)		1,968		2,166
6.000%, 02/01/2025 (A)		1,058		751
6.000%, 06/30/2028 (A)		3,182		2,514
Endo Finance LLC
5.750%, 01/15/2022 (A)		1,738		1,686
HCA
5.875%, 02/15/2026		7,520		8,657
5.875%, 02/01/2029		2,467		2,949
5.625%, 09/01/2028		445		522
5.375%, 02/01/2025		6,926		7,754
3.500%, 09/01/2030		2,748		2,845
Hill-Rom Holdings
5.000%, 02/15/2025 (A)		1,214		1,250

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.375%, 09/15/2027 (A)	$	1,411	$	1,471
Hologic
3.250%, 02/15/2029 (A)		417		424
Horizon Therapeutics USA
5.500%, 08/01/2027 (A)		1,305		1,378
IQVIA
5.000%, 10/15/2026 (A)		1,440		1,507
Jaguar Holding II
5.000%, 06/15/2028 (A)		150		160
4.625%, 06/15/2025 (A)		152		159
Mallinckrodt International Finance
5.625%, 10/15/2023 (A)(B)		850		264
5.500%, 04/15/2025 (A)(B)		595		184
MEDNAX
6.250%, 01/15/2027 (A)		1,570		1,680
Molina Healthcare
4.375%, 06/15/2028 (A)		1,960		2,058
3.875%, 11/15/2030 (A)		382		403
Par Pharmaceutical
7.500%, 04/01/2027 (A)		3,405		3,677
Prestige Brands
6.375%, 03/01/2024 (A)		735		753
5.125%, 01/15/2028 (A)		185		196
Providence Service
5.875%, 11/15/2025 (A)		1,390		1,475
Select Medical
6.250%, 08/15/2026 (A)		1,336		1,426
Syneos Health
3.625%, 01/15/2029 (A)		1,105		1,113
Tenet Healthcare
7.500%, 04/01/2025 (A)		404		442
7.000%, 08/01/2025		1,520		1,570
6.875%, 11/15/2031		335		347
6.750%, 06/15/2023		830		893
6.250%, 02/01/2027 (A)		2,873		3,009
6.125%, 10/01/2028 (A)		5,886		5,982
5.125%, 05/01/2025		2,762		2,789
5.125%, 11/01/2027 (A)		815		850
4.875%, 01/01/2026 (A)		2,367		2,438
4.625%, 07/15/2024		2,095		2,132
4.625%, 09/01/2024 (A)		45		47
4.625%, 06/15/2028 (A)		3,543		3,658
Varex Imaging
7.875%, 10/15/2027 (A)		2,370		2,430
				109,648
Industrials — 9.4%
ACCO Brands
5.250%, 12/15/2024 (A)		740		758
ADT Security
4.875%, 07/15/2032 (A)		2,573		2,689

  158   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Allison Transmission
5.875%, 06/01/2029 (A)	$	355	$	396
4.750%, 10/01/2027 (A)		2,184		2,311
3.750%, 01/30/2031 (A)		332		335
Altera Infrastructure
8.500%, 07/15/2023 (A)		1,612		1,335
American Airlines
11.750%, 07/15/2025 (A)		602		666
American Airlines Group
5.000%, 06/01/2022 (A)		2,212		1,830
3.750%, 03/01/2025 (A)		876		582
American Woodmark
4.875%, 03/15/2026 (A)		815		833
ARD Finance
6.500%cash/0% PIK, 06/30/2027 (A)		3,812		4,017
Ardagh Packaging Finance
6.000%, 02/15/2025 (A)		698		721
5.250%, 04/30/2025 (A)		2,581		2,720
5.250%, 08/15/2027 (A)		830		866
4.125%, 08/15/2026 (A)		900		934
ASGN
4.625%, 05/15/2028 (A)		1,796		1,868
Avis Budget Car Rental LLC
10.500%, 05/15/2025 (A)		785		916
6.375%, 04/01/2024 (A)		2,205		2,249
5.250%, 03/15/2025 (A)		470		466
Beacon Roofing Supply
4.875%, 11/01/2025 (A)		1,358		1,376
Boeing
5.805%, 05/01/2050		1,769		2,339
5.150%, 05/01/2030		3,538		4,171
3.625%, 02/01/2031		428		455
3.250%, 02/01/2028		456		477
Bombardier
8.750%, 12/01/2021 (A)		1,114		1,142
7.875%, 04/15/2027 (A)		2,070		1,765
7.500%, 12/01/2024 (A)		4,323		3,871
7.500%, 03/15/2025 (A)		1,475		1,272
6.000%, 10/15/2022 (A)		5,342		5,076
Brink’s
5.500%, 07/15/2025 (A)		365		390
Builders FirstSource
5.000%, 03/01/2030 (A)		1,297		1,398
BWAY Holding Co
7.250%, 04/15/2025 (A)		3,627		3,640
5.500%, 04/15/2024 (A)		940		952
BWX Technologies
5.375%, 07/15/2026 (A)		3,152		3,274
4.125%, 06/30/2028 (A)		607		632
Cargo Aircraft Management
4.750%, 02/01/2028 (A)		2,861		2,965

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Cenveo (Escrow Security)
8.500%, 09/15/2022 (E)	$	10,375	$	9
Clark Equipment
5.875%, 06/01/2025 (A)		2,471		2,604
Clean Harbors
4.875%, 07/15/2027 (A)		2,979		3,155
CP Atlas Buyer
7.000%, 12/01/2028 (A)		2,023		2,094
Delta Air Lines
7.375%, 01/15/2026		1,816		2,042
7.000%, 05/01/2025 (A)		4,499		5,140
4.750%, 10/20/2028 (A)		3,199		3,442
4.500%, 10/20/2025 (A)		3,806		4,018
EnerSys
4.375%, 12/15/2027 (A)		892		945
EnPro Industries
5.750%, 10/15/2026		569		609
Flex Acquisition
7.875%, 07/15/2026 (A)		1,448		1,524
Fortress Transportation & Infrastructure Investors LLC
9.750%, 08/01/2027 (A)		1,500		1,702
6.750%, 03/15/2022 (A)		2,000		2,014
6.500%, 10/01/2025 (A)		950		969
GFL Environmental
8.500%, 05/01/2027 (A)		337		372
5.125%, 12/15/2026 (A)		2,069		2,183
4.000%, 08/01/2028 (A)		202		201
3.750%, 08/01/2025 (A)		1,219		1,243
Graham Packaging
7.125%, 08/15/2028 (A)		132		141
Granite US Holdings
11.000%, 10/01/2027 (A)		2,715		2,986
Griffon
5.750%, 03/01/2028		690		731
H&E Equipment Services
5.625%, 09/01/2025		3,514		3,673
3.875%, 12/15/2028 (A)		3,200		3,200
Harsco
5.750%, 07/31/2027 (A)		766		810
Herc Holdings
5.500%, 07/15/2027 (A)		3,370		3,551
Hertz
7.625%, 06/01/2022 (A)(B)		285		274
7.125%, 08/01/2026 (A)(B)		715		324
6.000%, 01/15/2028 (A)(B)		520		231
5.500%, 10/15/2024 (A)(B)		1,573		696
Howmet Aerospace
6.875%, 05/01/2025		195		227
5.900%, 02/01/2027		1,185		1,376
Icahn Enterprises
4.750%, 09/15/2024		4,455		4,589

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   159

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
James Hardie International Finance DAC
5.000%, 01/15/2028 (A)	$	2,268	$	2,398
4.750%, 01/15/2025 (A)		340		348
JELD-WEN
6.250%, 05/15/2025 (A)		235		253
4.875%, 12/15/2027 (A)		170		179
4.625%, 12/15/2025 (A)		560		571
Korn Ferry
4.625%, 12/15/2027 (A)		3,609		3,775
LABL Escrow Issuer LLC
10.500%, 07/15/2027 (A)		480		532
6.750%, 07/15/2026 (A)		640		683
Masonite International
5.750%, 09/15/2026 (A)		57		60
5.375%, 02/01/2028 (A)		2,144		2,281
MasTec
4.500%, 08/15/2028 (A)		550		575
Maxim Crane Works Holdings Capital LLC
10.125%, 08/01/2024 (A)		1,905		1,943
Mileage Plus Holdings LLC
6.500%, 06/20/2027 (A)		3,612		3,916
Moog
4.250%, 12/15/2027 (A)		2,212		2,279
New Enterprise Stone & Lime
6.250%, 03/15/2026 (A)		2,185		2,253
Nielsen Finance LLC
5.875%, 10/01/2030 (A)		661		726
5.625%, 10/01/2028 (A)		661		705
5.000%, 04/15/2022 (A)		420		420
Nielsen Luxembourg
5.000%, 02/01/2025 (A)		1,363		1,402
PGT Innovations
6.750%, 08/01/2026 (A)		510		544
PowerTeam Services LLC
9.033%, 12/04/2025 (A)		1,217		1,336
RBS Global
4.875%, 12/15/2025 (A)		2,212		2,256
Remington Arms
0.000%, 12/31/2049 (E)		1,885		–
Reynolds Group Issuer
4.000%, 10/15/2027 (A)		1,739		1,768
Rolls-Royce
5.750%, 10/15/2027 (A)		3,429		3,678
Sensata Technologies
5.625%, 11/01/2024 (A)		200		224
5.000%, 10/01/2025 (A)		1,442		1,601
4.375%, 02/15/2030 (A)		3,389		3,626
3.750%, 02/15/2031 (A)		1,734		1,760
Sensata Technologies UK Financing
6.250%, 02/15/2026 (A)		1,895		1,966
Signature Aviation US Holdings
4.000%, 03/01/2028 (A)		5,632		5,641

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Spirit AeroSystems
7.500%, 04/15/2025 (A)	$	440	$	471
5.500%, 01/15/2025 (A)		835		887
3.950%, 06/15/2023		2,296		2,216
1.050%, VAR ICE LIBOR USD 3 Month+0.800%, 06/15/2021		2,577		2,505
Spirit Loyalty Cayman
8.000%, 09/20/2025 (A)		2,841		3,159
SPX FLOW
5.875%, 08/15/2026 (A)		470		491
SRM Escrow Issuer LLC
6.000%, 11/01/2028 (A)		1,461		1,516
Standard Industries
4.750%, 01/15/2028 (A)		1,295		1,365
3.375%, 01/15/2031 (A)		208		209
Stericycle
3.875%, 01/15/2029 (A)		1,158		1,204
Stevens Holding
6.125%, 10/01/2026 (A)		370		401
Summit Materials LLC
5.250%, 01/15/2029 (A)		2,152		2,243
5.125%, 06/01/2025 (A)		2,218		2,251
Terex
5.625%, 02/01/2025 (A)		905		929
Tervita
11.000%, 12/01/2025 (A)		3,893		4,040
TransDigm
8.000%, 12/15/2025 (A)		827		903
6.250%, 03/15/2026 (A)		6,649		7,048
5.500%, 11/15/2027		3,161		3,262
Trident Merger Sub
6.625%, 11/01/2025 (A)		2,914		2,914
Trident TPI Holdings
9.250%, 08/01/2024 (A)		2,099		2,235
TriMas
4.875%, 10/15/2025 (A)		375		383
Triumph Group
8.875%, 06/01/2024 (A)		620		684
7.750%, 08/15/2025		2,765		2,406
6.250%, 09/15/2024 (A)		510		495
5.250%, 06/01/2022		1,165		1,072
Trivium Packaging Finance BV
8.500%, 08/15/2027 (A)		664		719
5.500%, 08/15/2026 (A)		976		1,022
Tutor Perini
6.875%, 05/01/2025 (A)		8,173		8,194
Uber Technologies
7.500%, 05/15/2025 (A)		903		964
United Airlines Holdings
4.875%, 01/15/2025		1,840		1,773
4.250%, 10/01/2022		1,104		1,104

  160   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
United Rentals North America
5.875%, 09/15/2026	$	565	$	597
5.500%, 05/15/2027		1,095		1,178
3.875%, 02/15/2031		399		417
Univar Solutions USA
5.125%, 12/01/2027 (A)		449		474
Vertical Holdco GmbH
7.625%, 07/15/2028 (A)		200		214
Wabash National
5.500%, 10/01/2025 (A)		760		775
Weekley Homes LLC
4.875%, 09/15/2028 (A)		132		138
Welbilt
9.500%, 02/15/2024		3,080		3,165
WESCO Distribution
7.250%, 06/15/2028 (A)		556		625
7.125%, 06/15/2025 (A)		556		605
Western Global Airlines LLC
10.375%, 08/15/2025 (A)		1,635		1,803
XPO Logistics
6.750%, 08/15/2024 (A)		3,070		3,253
6.500%, 06/15/2022 (A)		582		583
6.250%, 05/01/2025 (A)		275		295
6.125%, 09/01/2023 (A)		150		153
				241,801
Information Technology — 3.0%
ACI Worldwide
5.750%, 08/15/2026 (A)		667		708
Alliance Data Systems
7.000%, 01/15/2026 (A)		2,000		2,040
4.750%, 12/15/2024 (A)		2,426		2,326
ams
7.000%, 07/31/2025 (A)		2,218		2,451
Ascend Learning LLC
6.875%, 08/01/2025 (A)		928		956
Avaya
6.125%, 09/15/2028 (A)		5,437		5,736
Black Knight InfoServ LLC
3.625%, 09/01/2028 (A)		726		737
Booz Allen Hamilton
3.875%, 09/01/2028 (A)		371		383
BY Crown Parent LLC
4.250%, 01/31/2026 (A)		1,957		2,011
CDK Global
5.250%, 05/15/2029 (A)		313		343
CDW LLC
4.250%, 04/01/2028		420		438
3.250%, 02/15/2029		270		271
Change Healthcare Holdings LLC
5.750%, 03/01/2025 (A)		1,344		1,366

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
CommScope
7.125%, 07/01/2028 (A)	$	225	$	240
CommScope Finance LLC
8.250%, 03/01/2027 (A)		3,378		3,640
6.000%, 03/01/2026 (A)		970		1,023
CommScope Technologies LLC
6.000%, 06/15/2025 (A)		5,685		5,825
Dell International LLC
6.200%, 07/15/2030 (A)		135		172
Dell International LLC / EMC
6.100%, 07/15/2027 (A)		135		166
5.300%, 10/01/2029 (A)		865		1,046
Diebold Nixdorf
9.375%, 07/15/2025 (A)		1,631		1,790
Entegris
4.625%, 02/10/2026 (A)		895		922
4.375%, 04/15/2028 (A)		1,052		1,112
Gartner
4.500%, 07/01/2028 (A)		80		84
3.750%, 10/01/2030 (A)		188		196
Go Daddy Operating LLC
5.250%, 12/01/2027 (A)		2,784		2,930
Hughes Satellite Systems
5.250%, 08/01/2026		1,613		1,780
Microchip Technology
4.250%, 09/01/2025 (A)		212		222
Monitronics International (Escrow Security)
9.125%, 04/01/2020 (B)(E)		10,706		–
MTS Systems
5.750%, 08/15/2027 (A)		225		233
NCR
8.125%, 04/15/2025 (A)		204		227
6.125%, 09/01/2029 (A)		735		799
5.750%, 09/01/2027 (A)		2,875		3,026
5.000%, 10/01/2028 (A)		833		862
Nuance Communications
5.625%, 12/15/2026		173		183
ON Semiconductor
3.875%, 09/01/2028 (A)		1,995		2,055
Open Text Holdings
4.125%, 02/15/2030 (A)		3,555		3,735
Plantronics
5.500%, 05/31/2023 (A)		1,518		1,522
Presidio Holdings
8.250%, 02/01/2028 (A)		891		967
4.875%, 02/01/2027 (A)		240		253
PTC
4.000%, 02/15/2028 (A)		2,012		2,095
3.625%, 02/15/2025 (A)		262		268
Science Applications International
4.875%, 04/01/2028 (A)		2,317		2,444

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   161

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Seagate HDD Cayman
5.750%, 12/01/2034	$	1,300	$	1,534
SS&C Technologies
5.500%, 09/30/2027 (A)		541		580
Switch
3.750%, 09/15/2028 (A)		2,377		2,412
Tempo Acquisition LLC
5.750%, 06/01/2025 (A)		678		722
Unisys
6.875%, 11/01/2027 (A)		1,160		1,259
Veritas US
7.500%, 09/01/2025 (A)		5,580		5,641
ViaSat
6.500%, 07/15/2028 (A)		3,250		3,412
5.625%, 09/15/2025 (A)		1,881		1,914
5.625%, 04/15/2027 (A)		1,250		1,312
Xerox Holdings
5.500%, 08/15/2028 (A)		442		457
5.000%, 08/15/2025 (A)		767		798
				79,624
Materials — 7.6%
Alcoa Nederland Holding
7.000%, 09/30/2026 (A)		415		445
6.750%, 09/30/2024 (A)		960		995
Alcoa Nederland Holding BV
6.125%, 05/15/2028 (A)		1,927		2,127
5.500%, 12/15/2027 (A)		1,529		1,656
Allegheny Technologies
7.875%, 08/15/2023		3,138		3,397
5.875%, 12/01/2027		3,351		3,485
ArcelorMittal
4.250%, 07/16/2029		2,257		2,480
Arconic
6.125%, 02/15/2028 (A)		1,002		1,087
6.000%, 05/15/2025 (A)		1,039		1,118
Ashland LLC
6.875%, 05/15/2043		1,384		1,820
Atotech Alpha 2 BV
8.750%cash/9.500% PIK, 06/01/2023 (A)		2,870		2,891
Axalta Coating Systems LLC
4.750%, 06/15/2027 (A)		155		163
3.375%, 02/15/2029 (A)		358		361
Baffinland Iron Mines
8.750%, 07/15/2026 (A)		8,585		9,014
Ball
2.875%, 08/15/2030		2,165		2,154
Berry Global
4.500%, 02/15/2026 (A)		3,548		3,637
Berry Global (Escrow Security)
4.875%, 07/15/2026 (A)		2,932		3,113

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Big River Steel LLC
6.625%, 01/31/2029 (A)	$	426	$	452
Boart Longyear Management Pty
10.000%, 12/31/2022		3,445		2,756
Boise Cascade
4.875%, 07/01/2030 (A)		2,380		2,582
Carpenter Technology
6.375%, 07/15/2028		281		306
Chemours
7.000%, 05/15/2025		151		156
5.750%, 11/15/2028 (A)		2,684		2,728
5.375%, 05/15/2027		923		960
Clearwater Paper
5.375%, 02/01/2025 (A)		1,605		1,709
Cleveland-Cliffs
6.750%, 03/15/2026 (A)		3,025		3,263
4.875%, 01/15/2024 (A)		1,831		1,858
Compass Minerals International
6.750%, 12/01/2027 (A)		1,793		1,976
Constellium
6.625%, 03/01/2025 (A)		594		613
5.875%, 02/15/2026 (A)		1,807		1,859
5.750%, 05/15/2024 (A)		1,398		1,426
5.625%, 06/15/2028 (A)		2,520		2,709
Cornerstone Chemical
6.750%, 08/15/2024 (A)		8,923		8,276
Crown Americas LLC
4.750%, 02/01/2026		1,324		1,374
4.250%, 09/30/2026		3,127		3,369
CVR Partners
9.250%, 06/15/2023 (A)		3,405		3,384
Eldorado
9.500%, 06/01/2024 (A)		1,871		2,058
Element Solutions
3.875%, 09/01/2028 (A)		3,203		3,265
First Quantum Minerals
7.500%, 04/01/2025 (A)		2,930		3,044
7.250%, 04/01/2023 (A)		963		984
6.875%, 03/01/2026 (A)		2,561		2,646
6.875%, 10/15/2027 (A)		2,398		2,511
6.500%, 03/01/2024 (A)		2,962		3,006
FMG Resources PTY
4.500%, 09/15/2027 (A)		1,729		1,896
Forterra Finance LLC
6.500%, 07/15/2025 (A)		285		304
Freeport-McMoRan
5.450%, 03/15/2043		5,756		7,170
5.400%, 11/14/2034		5,083		6,297
4.625%, 08/01/2030		825		914
4.375%, 08/01/2028		1,090		1,165
4.125%, 03/01/2028		1,805		1,909

  162   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
GCP Applied Technologies
5.500%, 04/15/2026 (A)	$	920	$	943
Greif
6.500%, 03/01/2027 (A)		580		613
Hecla Mining
7.250%, 02/15/2028		1,360		1,465
Hexion
7.875%, 07/15/2027 (A)		3,638		3,902
IAMGOLD
5.750%, 10/15/2028 (A)		3,180		3,188
INEOS Group Holdings
5.625%, 08/01/2024 (A)		1,805		1,837
Innophos Holdings
9.375%, 02/15/2028 (A)		2,800		3,073
Kraton Polymers LLC
7.000%, 04/15/2025 (A)		3,252		3,358
LSB Industries
9.625%, 05/01/2023 (A)		8,535		8,514
Mineral Resources
8.125%, 05/01/2027 (A)		3,845		4,245
Mosaic
5.450%, 11/15/2033		643		795
Mountain Province Diamonds
8.000%, 12/15/2022 (A)		4,890		4,163
New Gold
7.500%, 07/15/2027 (A)		970		1,053
6.375%, 05/15/2025 (A)		1,695		1,767
Northwest Acquisitions ULC
7.125%, 11/01/2022 (A)(B)		3,290		33
Nouryon Holding BV
8.000%, 10/01/2026 (A)		715		766
NOVA Chemicals
5.250%, 08/01/2023 (A)		190		191
5.250%, 06/01/2027 (A)		1,020		1,063
5.000%, 05/01/2025 (A)		3,127		3,236
4.875%, 06/01/2024 (A)		535		551
Novelis
5.875%, 09/30/2026 (A)		3,012		3,159
4.750%, 01/30/2030 (A)		1,470		1,560
OCI
5.250%, 11/01/2024 (A)		1,073		1,116
OI European Group BV
4.000%, 03/15/2023 (A)		2,951		3,025
Owens-Brockway Glass Container
6.625%, 05/13/2027 (A)		1,945		2,105
6.375%, 08/15/2025 (A)		815		901
5.875%, 08/15/2023 (A)		1,135		1,220
Rain CII Carbon LLC
7.250%, 04/01/2025 (A)		9,350		9,280
Reichhold Industries
9.000%, 05/01/2018 (A)(B)(E)		1,056		–

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Scotts Miracle-Gro
5.250%, 12/15/2026	$	165	$	176
4.500%, 10/15/2029		134		143
Taseko Mines
8.750%, 06/15/2022 (A)		1,814		1,791
Teck Resources
6.125%, 10/01/2035		1,358		1,715
Trinseo Materials Operating SCA
5.375%, 09/01/2025 (A)		975		997
Tronox
6.500%, 05/01/2025 (A)		797		849
6.500%, 04/15/2026 (A)		640		665
Tronox Finance
5.750%, 10/01/2025 (A)		1,999		2,066
U.S. Steel
12.000%, 06/01/2025 (A)		336		383
Valvoline
4.250%, 02/15/2030 (A)		275		289
Venator Finance Sarl
9.500%, 07/01/2025 (A)		1,716		1,879
5.750%, 07/15/2025 (A)		3,004		2,636
Warrior Met Coal
8.000%, 11/01/2024 (A)		2,530		2,530
				202,109
Real Estate — 2.0%
CoreCivic
4.625%, 05/01/2023		595		559
Diversified Healthcare Trust
9.750%, 06/15/2025		3,791		4,312
Geo Group
5.875%, 10/15/2024		170		134
5.125%, 04/01/2023		235		203
Howard Hughes
5.375%, 08/01/2028 (A)		888		945
Iron Mountain
5.250%, 03/15/2028 (A)		2,300		2,406
5.250%, 07/15/2030 (A)		830		884
5.000%, 07/15/2028 (A)		1,600		1,660
4.875%, 09/15/2027 (A)		4,646		4,814
4.875%, 09/15/2029 (A)		4,648		4,813
4.500%, 02/15/2031 (A)		424		433
iStar
4.750%, 10/01/2024		903		903
4.250%, 08/01/2025		1,783		1,734
Lamar Media
4.875%, 01/15/2029		180		190
4.000%, 02/15/2030		877		912
Outfront Media Capital LLC
6.250%, 06/15/2025 (A)		903		959
5.000%, 08/15/2027 (A)		766		784

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   163

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund(Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
QualityTech
3.875%, 10/01/2028 (A)	$	990	$	1,005
Realogy Group LLC
9.375%, 04/01/2027 (A)		1,766		1,934
4.875%, 06/01/2023 (A)		1,699		1,729
RHP Hotel Properties
5.000%, 04/15/2023		1,745		1,736
4.750%, 10/15/2027		2,435		2,417
SBA Communications
4.875%, 09/01/2024		545		559
Service Properties Trust
4.950%, 02/15/2027		2,313		2,206
Uniti Group
8.250%, 10/15/2023		1,787		1,789
7.875%, 02/15/2025 (A)		1,313		1,395
7.125%, 12/15/2024 (A)		1,210		1,183
6.000%, 04/15/2023 (A)		1,975		2,017
VICI Properties
4.625%, 12/01/2029 (A)		715		762
4.250%, 12/01/2026 (A)		678		703
4.125%, 08/15/2030 (A)		1,251		1,290
3.750%, 02/15/2027 (A)		885		903
3.500%, 02/15/2025 (A)		90		92
XHR
6.375%, 08/15/2025 (A)		3,380		3,541
				51,906
Utilities — 1.6%
AES
6.000%, 05/15/2026		125		132
5.500%, 04/15/2025		565		582
AmeriGas Partners
5.875%, 08/20/2026		235		264
5.500%, 05/20/2025		500		549
Calpine
5.000%, 02/01/2031 (A)		548		578
4.625%, 02/01/2029 (A)		605		625
4.500%, 02/15/2028 (A)		6,967		7,193
NextEra Energy Operating Partners
4.250%, 07/15/2024 (A)		2,746		2,890
NRG Energy
7.250%, 05/15/2026		820		869
6.625%, 01/15/2027		2,119		2,230
3.625%, 02/15/2031 (A)		1,005		1,041
3.375%, 02/15/2029 (A)		1,035		1,057
Pacific Gas & Electric
4.750%, 02/15/2044		520		582
4.300%, 03/15/2045		607		652
Pacific Gas and Electric
3.950%, 12/01/2047		666		697
PG&E
5.250%, 07/01/2030		5,394		5,879

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
5.000%, 07/01/2028	$	857	$	915
Pike
5.500%, 09/01/2028 (A)		1,637		1,715
Rockpoint Gas Storage Canada
7.000%, 03/31/2023 (A)		3,412		3,280
Talen Energy Supply LLC
7.625%, 06/01/2028 (A)		885		932
6.625%, 01/15/2028 (A)		2,120		2,168
Vistra Operations LLC
5.625%, 02/15/2027 (A)		825		871
5.500%, 09/01/2026 (A)		845		884
5.000%, 07/31/2027 (A)		4,115		4,352
4.300%, 07/15/2029 (A)		2,839		3,168
				44,105
Total Corporate Obligations (Cost $1,985,136) ($ Thousands)				2,025,309
LOAN PARTICIPATIONS — 10.0%
Affinity Gaming (fka Affinity Gaming, LLC), Initial Term Loan
9.250%, 01/31/2025		170		155
Affinity Gaming LLC, 1st Lien
4.250%, 07/01/2023 (G)		2,093		1,958
AgroFresh, 1st Lien
7.250%, 12/31/2024		3,309		3,265
AI Aqua Merger Sub, Inc., Term Loan B-1, 1st Lien
4.250%, VAR Euribor+4.500%, 12/13/2023		3,179		3,108
Air Medical Group Holdings, Inc., 2018 New Term Loan, 1st Lien
5.250%, VAR LIBOR+3.250%, 03/14/2025		1,779		1,748
Alvogen Pharma, Term Loan
6.250%, 12/31/2023		2,262		2,163
AMC Entertainment Holdings, Inc. (fka AMC Entertainment Inc.), Term B-1 Loan, 1st Lien
3.230%, VAR LIBOR+3.000%, 04/22/2026 (H)		4,304		3,242
American Gaming, Term Loan, 1st Lien
14.000%, 02/15/2024 (E)		1,337		1,403
American Greetings, Initial Term Loan, 1st Lien
5.500%, VAR LIBOR+4.500%, 04/06/2024 (H)		424		417
American Tire Distributors, Inc., Initial Term Loan, 1st Lien
8.500%, VAR LIBOR+6.000%, 09/02/2024 (H)		6,822		6,150

  164   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
American Tire Distributors, Initial Term Loan
8.500%, 09/02/2024	$	113	$	102
Aptos, 1st Lien
5.646%, 03/04/2027 (G)		4,098		3,904
Aruba Investments, Term Loan, 2nd Lien
8.500%, 10/27/2028 (G)(H)		1,678		1,675
Ascend Learning, 1st Lien
4.750%, 07/12/2024		163		163
Ascend Learning, Term Loan, 1st Lien
4.000%, VAR LIBOR+3.250%, 07/12/2024		252		249
Asurion, LLC (fka Asurion Corporation), Second Lien Replacement B-2 Term Loan, 2nd Lien
6.646%, VAR LIBOR+0.500%, 08/04/2025		3,779		3,799
Atotech, Cov-Lite, Term Loan B, 1st Lien
4.000%, 01/31/2024		3,320		3,294
Avianca, Tranche A, 1st Lien
11.000%, 11/10/2021 (E)(H)		1,605		1,580
Banijay Group, Term Loan B, 1st Lien
3.888%, 03/01/2025 (H)		70		68
Bausch Health Companies Inc., Initial Term Loan, 1st Lien
3.143%, VAR LIBOR+3.000%, 06/02/2025		799		789
BoardRiders Inc., Tranche A Loan, 1st Lien
9.000%, 10/23/2023 (E)		606		589
BoardRiders Inc., Tranche B-2 Loan, 1st Lien
10.250%, 04/23/2024 (E)		3,261		2,454
Buckeye Partners L.P., Initial Term Loan, 1st Lien
2.899%, 11/01/2026		363		360
BWay Holding Company , Initial Term Loan, 1st Lien
3.480%, VAR LIBOR+3.250%, 04/03/2024		2,061		1,959
Caesars Resort Collection, LLC, Term B-1 Loan, 1st Lien
4.646%, VAR LIBOR+4.500%, 07/21/2025		4,803		4,754
Carestream Health, Extended Loan, 2nd Lien
5.500%, 08/08/2023 (E)		4,045		2,953
Carestream, Extended Loan, 1st Lien
7.750%, 05/08/2023		2,148		2,084
CBAC Borrower LLC, Term B Loan, 1st Lien
4.146%, 07/08/2024 (G)		2,637		2,378
Cengage Learning, Inc., 2016 Refinancing Term Loan, 1st Lien
5.250%, VAR LIBOR+3.750%, 06/07/2023		4,553		4,225
CenturyLink Inc., Term Loan B, 1st Lien
2.396%, 03/15/2027		253		247

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Cenveo Corporation, Exit Term Loan, 1st Lien
10.500%, 06/07/2023 (E)(G)	$	2,608	$	2,425
CityCenter Holdings, LLC , Term B Loan, 1st Lien
3.000%, VAR LIBOR+2.000%, 04/18/2024		957		921
Claire’s Stores, Term Loan B, 1st Lien
6.807%, 12/18/2026		2,037		1,636
Clarios Global LP, Initial Dollar Term Loan, 1st Lien
3.646%, VAR LIBOR+3.500%, 04/30/2026		1,118		1,105
ConvergeOne Holdings, Corp., Initial Term Loan, 1st Lien
5.146%, 01/04/2026		4,832		4,388
Cornerstone OnDemand, Term Loan
4.396%, 04/22/2027		295		294
Coty Inc., Term Loan B, 1st Lien
2.377%, 04/07/2025		3,574		3,357
CP Atlas Buyer, Inc., Initial Tranche B-1 Term Loan, 1st Lien
5.250%, VAR LIBOR+4.500%, 11/19/2027 (H)		137		137
East Valley Tourist Development Authority, Term Loan, 1st Lien
9.000%, VAR LIBOR+3.750%, 03/07/2022 (E)		3,937		3,780
Endo Luxembourg Finance Company I, Initial Term Loan, 1st Lien
5.000%, VAR ICE LIBOR USD 3 Month+4.250%, 04/27/2024		678		657
Envision Healthcare Corporation, Initial Term Loan, 1st Lien
3.896%, VAR LIBOR+3.750%, 10/10/2025		7,041		5,722
Epic Crude Services, LP, Term Loan, 1st Lien
5.260%, VAR LIBOR+5.000%, 03/02/2026		2,983		2,076
Epic Y-Grade Services, 1st Lien
7.000%, 06/30/2027 (H)		5,513		4,410
eResearchTechnology, Inc., Initial Term Loan, 1st Lien
5.500%, VAR LIBOR+4.500%, 02/04/2027		2,068		2,065
Foresight Energy Operating LLC, Tranche A Term Loan, 1st Lien
9.500%, 06/30/2027 (E)		510		517
Gates Global LLC, Initial B-2 Dollar Term Loan, 1st Lien
3.750%, VAR Euribor+3.000%, 04/01/2024		859		850

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   165

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Genesis Energy, 1st Lien
4.750%, VAR LIBOR+4.000%, 10/08/2027 (H)	$	509	$	507
Getty Images, 1st Lien
4.688%, 02/19/2026		1,713		1,650
GFL Environmental, Incremental Term Loan, 2nd Lien
4.000%, VAR LIBOR+3.250%, 05/30/2025		556		555
Global Medical Response, Inc., 2020 Refinancing Term Loan, 1st Lien
5.750%, VAR LIBOR+4.750%, 09/24/2025		3,020		2,978
Golden Nugget Inc., Term Loan B, 1st Lien
3.250%, VAR LIBOR+2.750%, 10/04/2023		1,087		1,034
Graham Packaging, Cov-Lite, 1st Lien
4.500%, 08/04/2027		3,694		3,688
Green Energy Partners/Stonewall LLC, Term B-1 Conversion Advances, 1st Lien
6.500%, VAR LIBOR+5.500%, 11/13/2021 (E)		717		655
Guitar Center
7.000%, 11/21/2021		666		666
Harland Clarke Holdings Corp. (fka Clarke American Corp.), Initial Term Loan, 1st Lien
5.750%, VAR Prime Rate by Country+4.250%, 11/03/2023		427		367
Hercules Achievement, Inc. (Varsity Brands Holding Co., Inc.), Initial Term Loan, 1st Lien
4.500%, 12/16/2024 (G)		483		448
Hoya Midco, LLC, Initial Term Loan, 1st Lien
4.500%, VAR LIBOR+1.296%, 06/30/2024 (H)		2,659		2,403
iHeartCommunications, Inc. (fka Clear Channel Communications, Inc.), New Term Loan, 1st Lien
3.146%, VAR LIBOR+3.000%, 05/01/2026		720		695
Indivior Finance S.a r.l., 2017 Replacement USD Term Loan, 1st Lien
5.500%, VAR LIBOR+4.250%, 12/19/2022 (E)		865		845
Infoblox, Cov-Lite, 2nd Lien
8.000%, VAR LIBOR+7.250%, 10/06/2028 (H)		1,589		1,594
Informatica LLC , Dollar 2020 Term Loan, 1st Lien
3.396%, VAR LIBOR+3.250%, 02/25/2027		148		146

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Insurity Holdings, 1st Lien
4.179%, VAR LIBOR+4.000%, 07/31/2026 (H)	$	1,105	$	1,087
IRB Holding Corp., 2020 Replacement Term B Loan, 1st Lien
3.750%, VAR LIBOR+2.750%, 02/05/2025		454		446
IRB Holding Corp., Fourth Amendment Incremental Term Loan, 1st Lien
4.250%, 11/19/2027 (G)(H)		403		399
Jaguar Holding Company I, LLC (fka Jaguar Holding Company I), 2018 Term Loan, 1st Lien
3.500%, VAR LIBOR+2.500%, 08/18/2022		1,038		1,035
JC Penney, Delay Draw Term Loan
14.000%, 12/16/2020 (E)		2,946		4,861
JC Penney, Term Loan, 1st Lien
5.250%, VAR LIBOR+4.250%, 06/23/2023 (B)		3,751		1,039
Knight Energy Services
8.500%, 02/09/2024 (E)		76		—
Kronos Acquisition Intermediate Inc., Initial Loan, 1st Lien
5.000%, VAR LIBOR+4.000%, 05/15/2023		234		234
Kronos Acquisition Intermediate Inc., Initial Loan, 2nd Lien
5.000%, VAR LIBOR+4.000%, 05/15/2023 (H)		148		148
Lanai Holdings II, Inc., Initial Term Loan, 1st Lien
5.750%, VAR LIBOR+4.750%, 08/29/2022		8,015		7,629
LANDesk Software, Delayed Draw, Term Loan, 1st Lien
0.000%, 11/22/2027 (G)(H)		827		818
LANDesk Software, Term Loan, 1st Lien
5.750%, VAR LIBOR+4.750%, 11/22/2027 (H)		866		857
Lifescan Global Corporation, Initial Term Loan, 1st Lien
7.451%, 10/01/2024		64		60
Lifescan Global Corporation, Initial Term Loan, 2nd Lien
6.234%, 10/01/2024 (G)		11,627		10,988
Mashantucket (Western) Pequot Tribe, Term B Loan, 1st Lien
8.375%, VAR Euribor+3.250%, 12/31/2020		11,682		11,274

  166   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Mavenir Systems, Inc., Initial Term Loan, 1st Lien
7.000%, VAR LIBOR+3.250%, 05/08/2025 (E)	$	2,737	$	2,716
McGraw-Hill Global Education Holdings, LLC, Term B Loan, 1st Lien
5.000%, 05/04/2022 (G)		5,601		5,280
Meredith Corporation, Tranche B-3 Term Loan, 1st Lien
5.250%, 01/31/2025		494		493
Merrill Communications, LLC, Term Loan B (2019), 2nd Lien
6.000%, 10/05/2026 (G)		2,495		2,479
MI Windows and Doors, LLC, Initial Term Loan, 1st Lien
6.500%, VAR LIBOR+5.500%, 11/06/2026		1,219		1,217
Mileage Plus Holdings LLC (Mileage Plus Intellectual Property Assets, Ltd.), Initial Term Loan, 1st Lien
6.250%, VAR LIBOR+5.250%, 06/21/2027		1,460		1,503
Misys Limited, Dollar Term Loan, 1st Lien
4.500%, VAR LIBOR+1.317%, 06/13/2024		2,505		2,424
MLN US HoldCo LLC, Term B Loan, 2nd Lien
4.641%, VAR LIBOR+4.500%, 11/30/2025		1,441		1,254
Monitronics International Inc., Term Loan, 1st Lien
7.750%, 03/29/2024 (E)		1,462		1,287
Navitas Midstream, 1st Lien
5.500%, 12/13/2024		1,969		1,885
Nestle Skin Health, Term Loan B
4.470%, 10/01/2026		1,390		1,388
New rue21, LLC, Term Loan, 1st Lien
12.500%, VAR LIBOR+6.000%, 09/22/2022		173		168
Nine West Holdings Inc., Term Loan
8.220%, 03/19/2024		1,196		777
Nouryon Finance B.V., Initial Dollar Term Loan, 1st Lien
3.141%, VAR LIBOR+3.000%, 10/01/2025		940		921
Peak 10, Term Loan, 1st Lien
3.720%, VAR LIBOR+3.500%, 08/01/2024		8,023		7,151
PetSmart, Inc., Amended Loan, 1st Lien
5.000%, VAR LIBOR+3.000%, 03/11/2022		754		750
PF Chang’s, 1st Lien
6.396%, 03/01/2026		1,148		984

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Plantronics, Inc., Initial Term B Loan, 1st Lien
2.646%, VAR LIBOR+2.500%, 07/02/2025	$	1,766	$	1,703
Polymer Additives, Inc., 1st Lien
6.214%, 07/31/2025 (H)		5,931		4,676
Polymer Additives, Inc., 2nd Lien
6.166%, 07/31/2025		2		2
Radiate Holdco LLC
4.250%, 09/25/2026		3,275		3,261
Red Lobster Management LLC, Initial Term Loan, 1st Lien
6.250%, 07/28/2021 (G)		3,220		3,079
Refinitiv US Holdings Inc., Initial Dollar Term Loan, 1st Lien
3.396%, VAR LIBOR+3.250%, 10/01/2025		393		390
Revlon Consumer Products Corporation, Initial Term B Loan, 1st Lien
4.950%, VAR LIBOR+3.500%, 09/07/2023		29		8
4.250%, VAR LIBOR+3.500%, 09/07/2023		7,971		2,327
Schenectady International Group, Inc., Initial Term Loan, 1st Lien
4.896%, VAR LIBOR+4.750%, 10/15/2025		6		6
Shutterfly, Term Loan B, 1st Lien
7.000%, 09/25/2026		357		346
SIJ LLC, 1st Lien
10.167%, 07/15/2026 (E)		5,230		5,178
SkyMiles IP Ltd. (Delta Air Lines, Inc.), Initial Term Loan, 1st Lien
4.750%, VAR LIBOR+3.750%, 10/20/2027 (H)		380		388
Sotera Health Holdings, LLC, Initial Term Loan, 1st Lien
5.500%, VAR LIBOR+4.500%, 12/11/2026		2,559		2,556
SP PF Buyer LLC, Term Loan, 1st Lien
4.646%, 12/22/2025		2,788		2,618
Spirit AeroSystems, 1st Lien
6.000%, 01/30/2025		224		225
Staples, Inc., 2019 Refinancing New Term B-1 Loan, 1st Lien
5.214%, VAR LIBOR+5.000%, 04/16/2026		2,489		2,396
Steinway Musical Instruments, Term Loan B, 1st Lien
4.750%, VAR LIBOR+3.750%, 02/14/2025		1,409		1,359

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   167

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Syniverse Holdings, Inc., Tranche C Term Loan , 1st Lien
6.000%, VAR LIBOR+3.000%, 03/09/2023 (H)	$	13,240	$	11,361
Syniverse, Cov-Lite, 2nd Lien
10.000%, 03/11/2024		1,407		759
Team Health Holdings, Inc., Initial Term Loan, 1st Lien
3.750%, VAR LIBOR+2.750%, 02/06/2024		11,513		10,013
Titan Acquisition Limited, Initial Term Loan, 1st Lien
3.361%, VAR LIBOR+3.000%, 03/28/2025		1,953		1,876
TransDigm Inc., Tranche G Refinancing Term Loan, 1st Lien
2.396%, VAR LIBOR+2.250%, 08/22/2024		3,250		3,150
Traverse Midstream Partners LLC, Advance, 1st Lien
6.500%, VAR LIBOR+5.500%, 09/27/2024 (E)		4,195		3,948
Tutor Perini, Term Loan B, 1st Lien
5.750%, 08/18/2027		3,335		3,329
Twin River, Term Loan, 1st Lien
9.000%, 05/11/2026 (E)		1,088		1,149
U.S. Renal Care, Inc., Initial Term Loan, 1st Lien
5.146%, VAR LIBOR+4.250%, 06/26/2026		738		731
Uber Technologies, Inc., Term Loan, 1st Lien
5.000%, VAR LIBOR+4.000%, 04/04/2025		3,252		3,245
Valaris
0.000%, 08/17/2021 (E)(H)		1,736		1,736
VeriFone Systems, Inc., Initial Term Loan, 1st Lien
4.224%, VAR LIBOR+4.000%, 08/20/2025		2,734		2,588
Vertical Midco GmbH, Facility B (USD), 1st Lien
4.570%, VAR LIBOR+4.250%, 07/30/2027		431		430
Vertiv Group Corporation, Term Loan B, 1st Lien
3.149%, 03/02/2027		229		225
White Cap, Cov-Lite, 1st Lien
4.500%, 10/08/2027		798		790
Wilsonart LLC, Tranche D Term Loan, 1st Lien
4.250%, VAR LIBOR+1.300%, 12/19/2023		1,209		1,197

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
LOAN PARTICIPATIONS (continued)
Woodford Express LLC, Term Loan B, 1st Lien 6.000%, VAR LIBOR+5.000%, 01/27/2025	$	2,800	$	1,904
Zayo Group Holdings, Inc., Initial Dollar Term
Loan, 1st Lien 3.146%, VAR LIBOR+3.000%, 03/09/2027 (H)		527		518
Total Loan Participations (Cost $272,131) ($ Thousands)				266,825
ASSET-BACKED SECURITIES — 8.5%
Other Asset-Backed Securities — 8.5%
Airplanes Pass-Through Trust, Ser 2001-1A, Cl A9(J)
0.735%, VAR ICE LIBOR USD 1 Month+0.550%, 03/15/2019 (A) (B)(E)		835		30
Apex Credit CLO LLC, Ser 2020-1A, Cl E1
7.809%, VAR ICE LIBOR USD 3 Month+7.560%, 10/20/2031 (A)		2,215		2,038
Ares XXXIV CLO, Ser 2020-2A, Cl FR
8.818%, VAR ICE LIBOR USD 3 Month+8.600%, 04/17/2033 (A)(E)		2,304		1,751
B&M CLO, Ser 2014-1A, Cl E
5.980%, VAR ICE LIBOR USD 3 Month+5.750%, 04/16/2026 (A)(E)		2,520		1,159
Battalion CLO VII, Ser 2014-7A, Cl SUB
0.000%, 07/17/2028 (A)(E)(I)		4,614		1,338
Battalion CLO VIII, Ser 2015-8A, Cl SUB
0.000%, 07/18/2030 (A)(E)(I)		4,378		2,189
Battalion CLO X, Ser 2016-10A, Cl SUB
0.000%, 01/24/2029 (A)(E)(I)		6,380		3,892
Battalion CLO XI, Ser 2017-11A, Cl SUB
0.000%, 10/24/2029 (A)(E)(I)		10,431		7,145
Battalion CLO XII, Ser 2018-12A, Cl SUB
0.000%, 05/17/2031 (A)(E)(I)		8,633		6,389
Battalion CLO XIV, Ser 2019-14A
0.000%, 04/20/2032 (E)(I)		6,147		3,750
Battalion CLO XVI, Ser 2019-16A, Cl SUB
0.000%, 12/19/2032 (A)(E)(I)		6,023		5,150
Battalion CLO, Ser 2018-18
8.175%, 10/15/2032 (E)		2,467		2,430
Benefit Street Partners CLO III, Ser 2013-IIIA, Cl SUB
0.000%, 07/20/2029 (A)(E)(I)		2,640		581
Benefit Street Partners CLO IV
0.000%, 07/20/2026 (A)(E)(I)(K)		5		875
Benefit Street Partners CLO IX
0.000%, 07/20/2025 (A)(E)(I)(K)		3,363		2,152

  168   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Benefit Street Partners CLO V
0.000%, 10/20/2026 (A)(E)(I)(K)	$	6,413	$	1
Benefit Street Partners CLO V, Ser 2018-5BA
0.000%, 04/20/2031 (E)(I)		10,301		4,450
Benefit Street Partners CLO VI, Ser 2015-VIA, Cl SUB
0.000%, 10/18/2029 (A)(E)(I)		9,535		2,193
Benefit Street Partners CLO VII, Ser 2015-VIII, Cl SUB
0.000%, 07/18/2027 (E)(I)		9,035		2,654
Benefit Street Partners CLO VIII
0.000%, 01/20/2031 (A)(E)(I)		9,000		4,230
Benefit Street Partners CLO X, Ser 2016-10A, Cl SUB
0.000%, 01/15/2029 (A)(E)(I)		8,928		2,053
Benefit Street Partners CLO XII, Ser 2017— 12A, Cl C
3.287%, VAR ICE LIBOR USD 3 Month+3.050%, 10/15/2030 (A)(E)		1,950		1,833
Benefit Street Partners CLO XII, Ser 2017-12A, Cl SUB
0.000%, 10/15/2030 (A)(E)(I)		10,091		4,743
Benefit Street Partners CLO XIV, Ser 2018— 14A, Cl SUB
0.000%, 04/20/2031 (A)(E)(I)		6,857		3,459
Benefit Street Partners CLO XVIII, Ser 2019— 18A, Cl SUB
0.000%, 10/15/2032 (A)(E)(I)		6,048		4,024
Benefit Street Partners CLO XX, Ser 2020— 20A, Cl SUB
0.000%, 07/15/2031 (A)(E)(I)		3,469		3,326
Benefit Street Partners CLO XXI, Ser 2020— 21A, Cl E
8.297%, VAR ICE LIBOR USD 3 Month+8.040%, 07/15/2031 (A)(E)		1,531		1,538
Benefit Street Partners CLO, Warehouse Note
0.000%, (E)(I)(L)		1,211		1,211
Cathedral Lake CLO III, Ser 2015-3A, Cl SUB
0.000%, 01/15/2026 (A)(E)(I)		2,506		652
Cathedral Lake V, Ser 2018-5A, Cl SUB
0.000%, 10/21/2030 (A)(E)(I)		5,673		2,099
CVP Cascade CLO, Ser 2014-2A, Cl D
5.018%, VAR ICE LIBOR USD 3 Month+4.800%, 07/18/2026 (A) (B)(E)		2,337		982
CVP Cascade CLO, Ser 2014-2A, Cl E
6.018%, VAR ICE LIBOR USD 3 Month+5.800%, 07/18/2026 (A)(E)		2,665		426
Dryden 75 CLO, Ser 2019-75A, Cl SUB
0.000%, 07/15/2030 (A)(E)(I)		5,115		3,376
Figueroa CLO, Ser 2013-2A, Cl SUB
0.000%, 06/20/2027 (A)(E)(I)		3,046		–

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Great Lakes CLO, Ser 2014-1A, Cl SUB
0.000%, 10/15/2029 (A)(E)(I)	$	4,940	$	1,729
Great Lakes CLO, Ser 2015-1A, Cl SUB
0.000%, 01/16/2030 (A)(E)(I)		6,015		2,406
Great Lakes CLO, Ser 2017-1A, Cl ER
7.737%, VAR ICE LIBOR USD 3 Month+7.500%, 10/15/2029 (A)(E)		3,376		2,782
Great Lakes CLO, Ser 2017-1A, Cl FR
10.237%, VAR ICE LIBOR USD 3 Month+10.000%, 10/15/2029 (A)(E)		1,972		1,562
Great Lakes CLO, Ser 2018-1A, Cl ER
8.000%, VAR ICE LIBOR USD 3 Month+7.360%, 01/16/2030 (A)(E)		4,328		3,380
Great Lakes CLO, Ser 2018-1A, Cl FR
11.000%, VAR ICE LIBOR USD 3 Month+10.000%, 01/16/2030 (A) (B)(E)		1,595		1,190
IVY Hill Middle Market Credit Fund XII, Ser 2017-12A, Cl D
7.778%, VAR ICE LIBOR USD 3 Month+7.560%, 07/20/2029 (A)(E)		5,687		5,043
IVY Hill Middle Market Credit Fund XII, Ser 2017-12A, Cl SUB
0.000%, 07/20/2029 (A)(E)(I)		1,149		850
IVY Hill Middle Market Credit Fund XIV, Ser 2018-14A, Cl D
7.288%, VAR ICE LIBOR USD 3 Month+7.070%, 04/18/2030 (A)(E)		2,886		2,540
IVY Hill Middle Market Credit Fund XIV, Ser 2018-14A, Cl SUB
0.000%, 04/18/2030 (A)(E)(I)		2,164		1,244
JFIN CLO, Ser 2018-1A, Cl BR
2.568%, VAR ICE LIBOR USD 3 Month+2.350%, 07/20/2028 (A)(E)		2,769		2,721
Lockwood Grove CLO, Ser 2014-1A, Cl SUB
0.000%, 01/25/2030 (A)(E)(I)		4,865		2,189
Lockwood Grove CLO, Ser 2018-1A, Cl ERR
6.065%, VAR ICE LIBOR USD 3 Month+5.850%, 01/25/2030 (A)(E)		3,201		2,529
Longfellow Place CLO, Ser 2013-1A
3.237%, 04/15/2029 (E)		2,492		2,430
Neuberger Berman CLO XXII, Ser 2016-22A, Cl F
0.100%, 10/17/2030 (A)(E)		161		53
Neuberger Berman CLO XXII, Ser 2016-22A, Cl SUB
0.000%, 10/17/2030 (A)(E)(I)		5,235		2,827
Neuberger Berman Loan Advisers CLO 36, Ser 2020-36A, Cl INC
0.000%, 04/20/2033 (A)(E)(I)		1,780		1,691
Neuberger Berman Loan Advisers CLO 36, Ser 2020-36A, Cl SPIN
0.114%, 04/20/2033 (A)(E)(G)		23		21

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   169

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Neuberger Berman Loan Advisers CLO 38
0.000%, 10/20/2032 (E)(I)	$	5,458	$	4,737
Neuberger Berman Loan Advisers CLO 39
0.000%, 10/20/2032 (I)		8,784		7,966
NewStar Berkeley Fund CLO LLC, Ser 2016— 1A, Cl E
7.965%, VAR ICE LIBOR USD 3 Month+7.750%, 10/25/2028 (A)(E)		15,428		13,083
NewStar Berkeley Fund CLO LLC, Ser 2016— 1A, Cl SUB
0.000%, 10/25/2028 (A)(E)(I)		21,812		6,762
NewStar Clarendon Fund CLO LLC, Ser 2015— 1A, Cl E
6.265%, VAR ICE LIBOR USD 3 Month+6.050%, 01/25/2027 (A)(E)		4,470		3,844
NewStar Exeter Fund CLO, Ser 2015-1RA, Cl E
7.418%, VAR ICE LIBOR USD 3 Month+7.200%, 01/20/2027 (A)(E)		5,110		4,343
NewStar Fairfield Fund CLO, Ser 2015-2A, Cl SUB
0.000%, 04/20/2030 (A)(E)(I)		9,028		3,747
NewStar Fairfield Fund CLO, Ser 2018-2A, Cl DN
7.598%, VAR ICE LIBOR USD 3 Month+7.380%, 04/20/2030 (A)(E)		4,200		3,058
OCP CLO, Ser 2017-14A, Cl SUB
0.000%, 11/20/2030 (A)(E)(I)		3,012		1,747
OCP CLO, Ser 2020-19A, Cl SUB
0.000%, 07/20/2031 (A)(E)(I)		1,876		1,662
Shackleton CLO, Ser 2014-6A, Cl SUB
0.000%, 07/17/2026 (A)(E)(I)		7,965		1
Shackleton CLO, Ser 2014-6RA
0.000%, 07/17/2028 (E)(I)		6,412		2,180
Shackleton CLO, Ser 2019-14A, Cl SUB
0.000%, 07/20/2030 (A)(E)(I)		3,251		1,983
TCP Whitney CLO, Ser 2017-1I, Cl SUB
0.000%, 08/20/2029 (E)(I)		13,119		11,181
TCW CLO, Ser 2017-1A, Cl SUB
0.000%, 07/29/2029 (A)(E)(I)		7,377		4,574
TCW CLO, Ser 2018-1A, Cl SUB
0.000%, 04/25/2031 (A)(E)(I)		5,509		3,730
TCW CLO, Ser 2019-2A, Cl SUB
0.000%, 10/20/2032 (A)(E)(I)		5,959		3,992
TCW CLO, Ser 2020-1A, Cl DR
3.931%, VAR ICE LIBOR USD 3 Month+3.700%, 10/20/2031 (A)		1,674		1,641
TCW CLO, Warehouse Note, Ser 2020-1
0.000%, (E)(I)(L)		8,139		4,639
Telos CLO, Ser 2018-5A, Cl BR
1.698%, VAR ICE LIBOR USD 3 Month+1.480%, 04/17/2028 (A)(E)		1,624		1,571
Venture 35 CLO, Ser 2018-35A, Cl SUB
0.000%, 10/22/2031 (A)(E)(I)		15,819		6,644

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
ASSET-BACKED SECURITIES (continued)
Venture XXV CLO, Ser 2016-25A, Cl SUB
0.000%, 04/20/2029 (A)(E)(I)	$	2,950	$	1,327
Venture XXVI CLO, Ser 2017-26A, Cl SUB
0.000%, 01/20/2029 (A)(E)(I)		2,865		888
Venture XXVIII CLO, Ser 2017-28A, Cl SUB
0.000%, 07/20/2030 (A)(E)(I)		5,750		2,990
VOYA CLO, Ser 2020-2A
0.000%, 07/31/2031 (E)(I)		7,797		7,273
Total Asset-Backed Securities (Cost $218,987) ($ Thousands)				226,869
	Shares
COMMON STOCK — 1.0%
21st Century Oncology *(E)		22,017		294
Aquity Equity *(E)		89,545		940
Aquity Equity (Escrow Security) *(E)		69,580		139
Aspect Software CR1 Inc *(E)		40,500		—
Aspect Software CR2 Inc *(E)		16,397		—
ATD New Holdings Inc *(E)		3,257		57
Aurora *(E)		12,989		—
Battalion Oil *		6,488		50
Berry Corp		445,831		1,712
Cenveo Corp *(E)		66,991		904
CHC Group LLC *		28,873		22
Claire’s Stores Inc *(E)		858		300
Clear Channel Outdoor Holdings Inc, Cl A *		345,144		521
CUI Acquisition Corp *(E)		3		—
Cumulus Media Inc, Cl A *		109,292		958
Denbury Inc *		20,593		462
EP Energy *		25,685		604
Foresight *		60,593		515
FTS International, Cl A *		118,543		2,215
Global Aviation Holdings Inc, Cl A *(E)		101,199		—
Gymboree Corp *(E)		18,542		9
Gymboree Holding Corp *(E)		52,848		27
Hexion Holdings Corp *		194,188		2,278
iHeartMedia Inc *(C)		35,187		421
iHeartMedia Inc, Cl A *(C)		119,604		1,430
Jupiter Resources *(E)		571,046		428
Knight Energy Services LLC *(E)(M)		2,205		—
Medical Card Systems Inc *(E)		395,653		—
Monitronics International Inc *(E)		381,412		2,945
MYT Holding LLC *(E)		460,055		518
Neiman Marcus Group *(E)		10,950		876
Nine West *		163,718		164
Oasis Petroleum Inc *		17,789		608
Parker Drilling *		143,734		433
Quad/Graphics Inc, Cl A		173		1
Reichhold Industries *(E)		1,755		2,225
Remainco LLC *(E)		39,275		47
Remington Outdoor Company Inc *(E)		19,372		—
Rue 21 *		2,551		153

  170   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Shares		Market Value     ($ Thousands)
COMMON STOCK (continued)
SandRidge Energy (Escrow Security) (E)		7,605,000	$	—
SandRidge Energy Inc*		10,878		29
TE Holdcorp *(E)		67,771		—
Titan Energy LLC *		22,243		1
VICI Properties Inc ‡		121,310		3,068
Vistra Corp		46,760		873
Whiting Petroleum Corp *		21,292		482
Windstream Services *(E)		46,229		520
Total Common Stock (Cost $50,688) ($ Thousands)				27,229
	Face Amount (Thousands)
CONVERTIBLE BONDS — 0.7%
Air Canada CV to 65.1337
4.000%, 07/01/2025 (A)	$	400		597
Apollo Commercial Real Estate Finance CV to 50.2260
4.750%, 08/23/2022		443		417
Blackstone Mortgage Trust CV to 28.0324
4.375%, 05/05/2022		1,331		1,320
Cheniere Energy CV to 7.2265
4.250%, 03/15/2045		908		679
Chesapeake Energy CV to 116.7134
5.500%, 09/15/2026 (B)		180		10
CNX Resources CV to 77.8816
2.250%, 05/01/2026 (A)		805		851
DISH Network CV to 15.3429
3.375%, 08/15/2026		2,290		2,283
Golar LNG CV to 26.9925
2.750%, 02/15/2022		885		753
Liberty Media CV to 16.7764
3.750%, 02/15/2030		3,482		2,646
Liberty Media CV to 22.9469
4.000%, 11/15/2029		2,178		1,652
MagnaChip Semiconductor CV to 121.1387
5.000%, 03/01/2021		500		856
MGIC Investment CV to 74.0741
9.000%, 04/01/2063 (A)		3,480		4,576
Royal Caribbean Cruises CV to 13.8672
4.250%, 06/15/2023 (A)		355		488
Total Convertible Bonds (Cost $15,874) ($ Thousands)				17,128
	Shares
PREFERRED STOCK — 0.5%
2020 Mandatory Exchangeable Trust, 6.500%*		901		1,596
AMC Entertainment, 0.000% *		1,258		5
BoardRiders, 0.000% *(E)		336,591		347
Claire’s Stores Inc, 0.000% *(E)		622		1,213

Description	Shares		Market Value     ($ Thousands)
PREFERRED STOCK (continued)
Crestwood Equity Partners, 9.250% (N)		453,690	$	3,190
Danaher, 5.000% *		902		1,176
FHLMC, 0.000% *		29,819		509
FNMA, 0.000% *(G)		43,993		766
Ladenburg Thalmann Financial Services, 6.500%		99,400		1,605
MYT Holding LLC, 0.000% *(E)		608,423		685
Qurate Retail Inc, 8.000%		13,106		1,287
TE Holdcorp, 0.000% *(E)		118,617		—
Total Preferred Stock (Cost $11,695) ($ Thousands)				12,379
	Face Amount (Thousands)
MUNICIPAL BONDS — 0.2%
Connecticut — 0.1%
Mohegan Tribal Finance Authority, RB Callable 02/01/2023 @ 100
7.000%, 02/01/2045 (A)	$	2,940		2,903
Puerto Rico — 0.1%
Commonwealth of Puerto Rico, Ser A, GO
5.250%, 07/01/2023 (B)(E)		635		430
5.125%, 07/01/2037 (B)		465		309
5.000%, 07/01/2041 (B)		1,225		793
				1,532
Total Municipal Bonds (Cost $4,368) ($ Thousands)				4,435

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   171

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Continued)

Description	Number of Warrants		Market Value     ($ Thousands)
WARRANTS — 0.0%
Carestream,
Strike Price $0 *#		66	$	–
Guitar Center Holdings, Expires 04/16/2025
Strike Price $0 *(E)		29,435		–
iHeart Communications, Expires 05/01/2039
Strike Price $0 *(E)		24,100		181
Lion Holdings, Expires 12/30/2027
Strike Price $0 *		2,380		–
Neiman Marcus Group, Expires 09/24/2027
Strike Price $213 *(E)		6,679		–
Remington Arms, Expires 05/14/2022
Strike Price $0 *(E)		19,534		–
SandRidge Energy, Expires 10/07/2022
Strike Price $41 *		14,900		–
SandRidge Energy, Expires 10/07/2022
Strike Price $42 *		6,273		–
Windstream Services,

Description	Number of Warrants		Market Value     ($ Thousands)
WARRANTS (continued)
Strike Price $0 *(E)#		50,968	$	612
Total Warrants (Cost $951) ($ Thousands)				793
	Shares
CASH EQUIVALENT — 3.9%
SEI Daily Income Trust, Government Fund, Cl F
0.010%**†		103,553,341		103,553
Total Cash Equivalent (Cost $103,553) ($ Thousands)				103,553
Total Investments in Securities — 100.9% (Cost $2,663,383) ($ Thousands)			$	2,684,520

A list of open centrally cleared swap agreements held by the Fund at November 30, 2020 is as follows:

Credit Default Swaps
Reference Entity/ Obligation	Buy/Sell Protection		(Pays)/ Receives Rate			Payment Frequency		Termination Date		Notional Amount (Thousands)			Value (Thousands)		Upfront Payments/ Receipts (Thousands)			Net Unrealized Appreciation (Depreciation) (Thousands)
CDX.NA.HY.33 INDEX		Sell		5.00	%		Quarterly		12/20/2024		(1,839	)	$	144	$	(58	)	$	202
CDX.NA.HY.34 INDEX		Sell		5.00	%		Quarterly		06/20/2025		(2,000	)		160		2			158
													$	304	$	(56	)	$	360

Percentages are based on Net Assets of $2,661,565 ($ Thousands).

* Non-income producing security.

** The rate reported is the 7-day effective yield as of November 30, 2020.

† Investment in Affiliated Security (see Note 6).

‡ Real Estate Investment Trust.

# Expiration date not available.

(A) Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration normally to qualified institutions. On November 30, 2020, the value of these securities amounted to $1,610,358 ($ Thousands), representing 60.5% of the Net Assets of the Fund.

(B) Security is in default on interest payment.

(C) Security, or a portion thereof, is owned through a holding entity, Bamboo Temple, LLC.

(D) Perpetual security with no stated maturity date.

(E) Level 3 security in accordance with fair value hierarchy.

(F) Securities considered restricted. The total market value of such securities as of November 30, 2020 was $0 ($ Thousands) and represented 0.0% of the Net Assets of the Fund.

(G) Variable or floating rate security, the interest rate of which adjusts periodically based on changes in current interest rates and prepayments on the underlying pool of assets.

(H) Unsettled bank loan. Interest rate may not be available.

(I) No interest rate available.

(J) Security, or a portion thereof, is owned through a holding entity, 717 AEP Leasing, LLC.

(K) Zero coupon security. The rate shown on the Schedule of Investments is the security’s effective yield at the time of purchase.

(L) Warehouse Note—Interest rate and maturity date are unavailable.

(M) Security, or a portion thereof, is owned through a holding entity, Knights Energy Topco, LLC.

(N) Security is a Master Limited Partnership. At November 30, 2020, such securities amounted to $3,190 ($ Thousands), or 0.1% of the Net Assets of the Fund (See Note 2).

Cl — Class

CLO — Collateralized Loan Obligation

CV — Convertible Security

DAC — Designated Activity Company

FHLMC — Federal Home Loan Mortgage Corporation

FNMA — Federal National Mortgage Association

GO — General Obligation

ICE— Intercontinental Exchange

LIBOR— London Interbank Offered Rate

LLC — Limited Liability Company

LP — Limited Partnership

LLLP — Limited Liability Limited Partnership

Ltd. — Limited

PIK — Payment-In-Kind

Pty — Proprietary

RB — Revenue Bond

Ser — Series

ULC — Unlimited Liability Company

USD — United States Dollar

VAR — Variable Rate

  172   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1     ($)		Level 2     ($)		Level 3     ($)		Total     ($)
Corporate Obligations		–		2,015,070		10,239		2,025,309
Loan Participations		–		228,749		38,076		266,825
Asset-Backed Securities		–		11,645		215,224		226,869
Common Stock		16,146		854		10,229		27,229
Convertible Bonds		–		17,128		–		17,128
Preferred Stock		5,243		4,891		2,245		12,379
Municipal Bonds		–		4,005		430		4,435
Warrants		–		–		793		793
Cash Equivalent		103,553		–		–		103,553
Total Investments in Securities		124,942		2,282,342		277,236		2,684,520

Other Financial Instruments	Level 1     ($)		Level 2     ($)		Level 3     ($)		Total     ($)
Centrally Cleared Swaps
Credit Default Swaps* Unrealized Appreciation		–		360		–		360
Total Other Financial Instruments		–		360		–		360

* Swap contracts are valued at the unrealized appreciation on the instrument.

The following table depicts purchases and transfers in and/or out of Level 3 investments during the period for investments held as of November 30, 2020 ($ Thousands).

	Investments in Corporate Obligations			Investments in Loan Participations			Investments in Asset-Backed Securities			Investments in Common Stock			Investments in Convertible Bonds			Investments in Preferred Stock		Investments in Municipal Bonds			Investments in Warrants
Balance as of May 31, 2020	$	9,408		$	31,958		$	177,914		$	9,163		$	30		$	1,052	$	2,474		$	196
Accrued discounts/premiums		123			156			243			—			(55	)		—		—			—
Realized gain/(loss)		—			(876	)		2,567			1,045			(138	)		—		177			—
Change in unrealized appreciation/ (depreciation)		1,046			5,090			40,157			(594	)		163			609		236			597
Purchases		1,218			6,980			26,241			897			—			584		—			—
Sales		—			(3,818	)		(31,898	)		(1,414	)		—			—		(2,457	)		—
Net transfer into Level 3		65			11,856			—			1,132			—			—		—			—
Net transfer out of Level 3		(1,621	)		(13,270	)		—			—			—			—		—			—
Ending Balance as of November 30, 2020	$	10,239		$	38,076		$	215,224		$	10,229		$	—		$	2,245	$	430		$	793
Changes in unrealized gains/(losses) included in earnings related to securities still held at reporting date	$	1,003		$	5,037		$	39,301		$	36		$	(181	)	$	609	$	65		$	763

(1) Of the $276,369 ($ Thousands) in Level 3 securities as of November 30, 2020, $17,373 ($ thousand) or 0.1% of the Net Assets of the Fund are not valued via third party pricing vendors and broker quotes. If significant, the disclosure of the unobservable inputs and the interrelationships and sensitivity between these inputs are required for those Level 3 securities that are not valued by third party pricing vendors or broker quotes. The value of these securities is immaterial and no further disclosure is required.

For the period ended November 30, 2020, there were transfers between Level 2 and Level 3 assets and liabilities. The transfers were due to changes in the availability of observable inputs used to determine fair value.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value 5/31/2020		Purchases at Cost		Proceeds from Sales			Realized Gain/ (Loss)		Change in Unrealized Appreciation/ (Depreciation)		Value 11/30/2020		Shares		Income		Capital Gains
SEI Daily Income Trust, Government Fund, ClF	$	40,088	$	552,822	$	(489,357	)	$	—	$	—	$	103,553		103,553,341	$	5	$	—

Amounts designated as “—” are either $0 or have been rounded to $0.

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   173

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

High Yield Bond Fund (Concluded)

The accompanying notes are an integral part of the financial statements

  174   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Fund

^†Percentages based on total investments.

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS — 66.8%
Communication Services — 9.2%
Alphabet
2.250%, 08/15/2060	$	875	$	864
1.900%, 08/15/2040		500		494
America Movil
6.375%, 03/01/2035		305		455
6.125%, 03/30/2040		595		886
4.375%, 04/22/2049		305		398
AT&T Inc
5.150%, 02/15/2050		1,395		1,793
4.800%, 06/15/2044		2,021		2,538
4.650%, 06/01/2044		308		370
4.500%, 05/15/2035		4,225		5,119
4.500%, 03/09/2048		470		574
4.350%, 06/15/2045		6,456		7,611
4.300%, 12/15/2042		300		352
3.850%, 06/01/2060		365		387
3.650%, 06/01/2051		462		489
3.650%, 09/15/2059 (A)		1,571		1,592
3.550%, 09/15/2055 (A)		3,171		3,250
3.500%, 09/15/2053 (A)		6,061		6,183
3.300%, 02/01/2052		180		180
3.100%, 02/01/2043		485		498
Charter Communications Operating LLC
6.484%, 10/23/2045		2,218		3,170
6.384%, 10/23/2035		2,280		3,179
5.750%, 04/01/2048		1,180		1,559
5.375%, 05/01/2047		977		1,239
4.800%, 03/01/2050		625		746
3.850%, 04/01/2061		645		663
3.700%, 04/01/2051		605		632
Comcast
6.400%, 05/15/2038		794		1,236

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.950%, 10/15/2058	$	203	$	309
4.700%, 10/15/2048		3,422		4,856
4.600%, 10/15/2038		430		569
4.600%, 08/15/2045		835		1,128
4.250%, 01/15/2033		430		538
4.049%, 11/01/2052		1,626		2,110
4.000%, 03/01/2048		465		592
3.999%, 11/01/2049		863		1,121
3.969%, 11/01/2047		2,373		2,997
3.900%, 03/01/2038		1,375		1,693
3.750%, 04/01/2040		2,114		2,568
2.650%, 08/15/2062		325		328
Cox Communications
4.700%, 12/15/2042 (A)		353		456
Deutsche Telekom International Finance
4.875%, 03/06/2042 (A)		695		921
Discovery Communications LLC
5.300%, 05/15/2049		375		485
5.200%, 09/20/2047		365		465
4.650%, 05/15/2050		540		664
4.000%, 09/15/2055 (A)		1,504		1,673
Fox
5.576%, 01/25/2049		1,340		1,961
5.476%, 01/25/2039		755		1,048
Interpublic Group
5.400%, 10/01/2048		218		293
Level 3 Financing
3.875%, 11/15/2029 (A)		940		1,032
NBCUniversal Media LLC
5.950%, 04/01/2041		686		1,054
Rogers Communications
5.000%, 03/15/2044		1,077		1,463
4.500%, 03/15/2043		257		326
SES GLOBAL Americas Holdings GP
5.300%, 03/25/2044 (A)		1,200		1,274
Telefonica Emisiones SAU
5.213%, 03/08/2047		420		535
Time Warner Cable LLC
7.300%, 07/01/2038		475		698
6.750%, 06/15/2039		475		676
6.550%, 05/01/2037		1,005		1,391
5.875%, 11/15/2040		1,500		1,944
5.500%, 09/01/2041		1,385		1,746
4.500%, 09/15/2042		675		779
T-Mobile USA
4.500%, 04/15/2050 (A)		717		895
4.375%, 04/15/2040 (A)		650		794
3.600%, 11/15/2060 (A)		280		298
3.300%, 02/15/2051 (A)		1,955		2,048
Verizon Communications Inc
5.012%, 04/15/2049		33		47
5.012%, 08/21/2054		2,454		3,545

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   175

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.750%, 11/01/2041	$	495	$	663
4.672%, 03/15/2055		555		766
4.522%, 09/15/2048		724		974
4.500%, 08/10/2033		3,985		5,080
4.400%, 11/01/2034		900		1,138
4.272%, 01/15/2036		1,265		1,589
3.850%, 11/01/2042		165		200
2.987%, 10/30/2056 (A)		2,957		3,132
2.650%, 11/20/2040		170		175
ViacomCBS
5.850%, 09/01/2043		1,825		2,498
4.950%, 05/19/2050		568		724
4.850%, 12/15/2034		1,000		1,165
4.600%, 01/15/2045		310		365
Vodafone Group
5.250%, 05/30/2048		1,486		2,034
5.000%, 05/30/2038		1,245		1,622
4.875%, 06/19/2049		41		54
4.375%, 02/19/2043		865		1,066
4.250%, 09/17/2050		1,140		1,396
Walt Disney
7.625%, 11/30/2028		1		1
6.550%, 03/15/2033		1,200		1,772
3.600%, 01/13/2051		4,745		5,638
3.500%, 05/13/2040		550		641
2.750%, 09/01/2049		447		458
				126,928
Consumer Discretionary — 2.1%
Alimentation Couche-Tard
4.500%, 07/26/2047 (A)		1,075		1,331
3.800%, 01/25/2050 (A)		490		574
Amazon.com
4.950%, 12/05/2044		2,029		2,997
4.050%, 08/22/2047		951		1,275
2.700%, 06/03/2060		600		660
Aptiv PLC
5.400%, 03/15/2049		904		1,102
General Motors
6.600%, 04/01/2036		370		500
6.250%, 10/02/2043		200		270
5.950%, 04/01/2049		1,000		1,349
5.150%, 04/01/2038		225		268
5.000%, 04/01/2035		105		126
Home Depot
4.250%, 04/01/2046		925		1,230
4.200%, 04/01/2043		460		601
3.900%, 06/15/2047		607		774
3.350%, 04/15/2050		1,600		1,898
2.700%, 04/15/2030		720		800
Lowe’s
5.125%, 04/15/2050		272		399

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.050%, 05/03/2047	$	735	$	904
3.700%, 04/15/2046		935		1,099
3.000%, 10/15/2050		785		843
McDonald’s MTN
4.875%, 12/09/2045		95		130
4.600%, 05/26/2045		650		854
4.450%, 03/01/2047		1,535		1,988
4.450%, 09/01/2048		50		66
3.625%, 09/01/2049		785		921
3.600%, 07/01/2030		420		493
NIKE
3.375%, 03/27/2050		1,095		1,322
3.250%, 03/27/2040		655		767
2.850%, 03/27/2030		560		633
Starbucks
4.500%, 11/15/2048		310		403
4.450%, 08/15/2049		440		572
3.350%, 03/12/2050		710		778
TJX
4.500%, 04/15/2050		120		172
3.875%, 04/15/2030		525		629
				28,728
Consumer Staples — 7.5%
Advocate Health & Hospitals
4.272%, 08/15/2048		921		1,181
Aetna
4.125%, 11/15/2042		550		653
Alcon Finance
3.800%, 09/23/2049 (A)		750		891
Altria Group
5.950%, 02/14/2049		980		1,398
5.800%, 02/14/2039		185		245
5.375%, 01/31/2044		1,215		1,580
4.450%, 05/06/2050		315		371
3.875%, 09/16/2046		100		108
Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide
4.700%, 02/01/2036		6,160		7,858
Anheuser-Busch InBev Worldwide
5.550%, 01/23/2049		1,561		2,247
4.900%, 02/01/2046		6,905		9,023
4.600%, 04/15/2048		1,080		1,371
4.439%, 10/06/2048		2,122		2,631
4.375%, 04/15/2038		560		693
4.350%, 06/01/2040		591		733
Bacardi
5.300%, 05/15/2048 (A)		480		647
BAT Capital
5.282%, 04/02/2050		245		304
4.758%, 09/06/2049		630		726
4.540%, 08/15/2047		1,980		2,237

  176   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.390%, 08/15/2037	$	2,285	$	2,572
3.984%, 09/25/2050		185		194
3.734%, 09/25/2040		750		787
BayCare Health System
3.831%, 11/15/2050		365		452
Bayer US Finance II LLC
4.400%, 07/15/2044 (A)		2,580		2,991
3.950%, 04/15/2045 (A)		500		541
Baylor Scott & White Holdings
4.185%, 11/15/2045		1,040		1,297
Bon Secours Mercy Health
3.205%, 06/01/2050		450		480
Bowdoin College
4.693%, 07/01/2112		131		153
Campbell Soup
4.800%, 03/15/2048		239		317
3.125%, 04/24/2050		225		239
Celgene Corp
5.000%, 08/15/2045		270		341
4.550%, 02/20/2048		520		628
Children’s Hospital Medical Center
2.820%, 11/15/2050		450		452
City of Hope
4.378%, 08/15/2048		650		779
Claremont Mckenna College
3.378%, 01/01/2050		1,055		1,126
Coca-Cola
2.600%, 06/01/2050		590		624
2.500%, 06/01/2040		690		745
2.500%, 03/15/2051		880		915
CommonSpirit Health
4.187%, 10/01/2049		786		871
3.910%, 10/01/2050		290		308
Constellation Brands
4.500%, 05/09/2047		550		700
4.100%, 02/15/2048		615		753
Costco Wholesale
1.600%, 04/20/2030		915		938
Diageo Capital
2.125%, 04/29/2032		215		227
Fomento Economico Mexicano
3.500%, 01/16/2050		710		781
Georgetown University
2.943%, 04/01/2050		400		395
Hackensack Meridian Health
2.875%, 09/01/2050		370		376
Health Care Service, A Mutual Legal Reserve
3.200%, 06/01/2050 (A)		912		983
Hershey
3.125%, 11/15/2049		444		505
Johns Hopkins Health System
3.837%, 05/15/2046		555		694

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Johns Hopkins University
2.813%, 01/01/2060	$	605	$	623
Kaiser Foundation Hospitals
4.150%, 05/01/2047		590		771
3.266%, 11/01/2049		1,005		1,137
Keurig Dr Pepper
5.085%, 05/25/2048		265		370
4.985%, 05/25/2038		235		314
Kraft Heinz Foods
6.875%, 01/26/2039		865		1,203
4.875%, 10/01/2049 (A)		605		682
Kroger
5.400%, 01/15/2049		10		15
4.650%, 01/15/2048		744		980
4.450%, 02/01/2047		1,885		2,419
3.950%, 01/15/2050		387		474
Massachusetts Institute of Technology
5.600%, 07/01/2111		545		942
MedStar Health
3.626%, 08/15/2049		1,780		2,012
Memorial Health Services
3.447%, 11/01/2049		405		429
Memorial Sloan-Kettering Cancer Center
4.125%, 07/01/2052		325		426
Methodist Hospital
2.705%, 12/01/2050		370		373
Molson Coors Brewing
4.200%, 07/15/2046		750		868
Mondelez International
1.875%, 10/15/2032		250		255
Nestle Holdings
4.000%, 09/24/2048 (A)		180		241
3.900%, 09/24/2038 (A)		815		1,047
New York and Presbyterian Hospital
4.763%, 08/01/2116		309		374
3.954%, 08/01/2119		395		441
3.563%, 08/01/2036		750		821
Northwell Healthcare
4.260%, 11/01/2047		390		452
NYU Langone Hospitals
4.428%, 07/01/2042		2,030		2,281
3.380%, 07/01/2055		645		665
Partners Healthcare System
3.342%, 07/01/2060		2,125		2,361
3.192%, 07/01/2049		85		91
PepsiCo
3.625%, 03/19/2050		675		850
3.500%, 03/19/2040		390		475
3.450%, 10/06/2046		705		857
2.875%, 10/15/2049		105		117
Philip Morris International
4.500%, 03/20/2042		1,665		2,130

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   177

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.250%, 11/10/2044	$	230	$	286
4.125%, 03/04/2043		90		108
3.875%, 08/21/2042		795		941
Pomona College
2.888%, 01/01/2051		545		572
Procter & Gamble
3.600%, 03/25/2050		240		327
3.550%, 03/25/2040		380		479
Providence St. Joseph Health Obligated Group
3.744%, 10/01/2047		765		899
Reynolds American
5.850%, 08/15/2045		820		1,049
Stanford Health Care
3.795%, 11/15/2048		731		918
Takeda Pharmaceutical
3.175%, 07/09/2050		857		918
3.025%, 07/09/2040		250		265
Tyson Foods
5.100%, 09/28/2048		245		353
University of Chicago
2.761%, 04/01/2045		440		459
University of Southern California
5.250%, 10/01/2111		1,340		2,093
Walgreen
4.400%, 09/15/2042		475		528
Walgreens Boots Alliance
4.800%, 11/18/2044		1,235		1,420
Walmart
4.300%, 04/22/2044		231		313
4.050%, 06/29/2048		3,540		4,867
3.950%, 06/28/2038		675		876
3.625%, 12/15/2047		95		122
2.950%, 09/24/2049		477		555
				103,905
Energy — 8.2%
BG Energy Capital
5.125%, 10/15/2041 (A)		405		542
BP Capital Markets America
3.633%, 04/06/2030		1,955		2,280
3.000%, 02/24/2050		25		26
2.772%, 11/10/2050		2,030		2,024
Burlington Resources LLC
7.200%, 08/15/2031		20		29
5.950%, 10/15/2036		190		266
Canadian Natural Resources MTN
4.950%, 06/01/2047		350		425
Chevron
3.078%, 05/11/2050		1,084		1,209
Columbia Pipeline Group
5.800%, 06/01/2045		445		593

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Concho Resources
4.875%, 10/01/2047	$	545	$	725
4.850%, 08/15/2048		355		478
Conoco Funding
7.250%, 10/15/2031		370		547
ConocoPhillips
5.900%, 05/15/2038		1,628		2,321
4.300%, 11/15/2044		1,475		1,854
Devon Energy
7.950%, 04/15/2032		10		13
5.600%, 07/15/2041		1,250		1,460
5.000%, 06/15/2045		180		203
4.750%, 05/15/2042		1,085		1,178
Ecopetrol
5.875%, 05/28/2045		1,167		1,387
El Paso Natural Gas
8.375%, 06/15/2032		300		424
Enbridge Energy Partners
5.500%, 09/15/2040		400		492
Energy Transfer Operating
6.500%, 02/01/2042		70		81
6.250%, 04/15/2049		510		595
6.125%, 12/15/2045		1,758		1,990
5.950%, 10/01/2043		1,660		1,820
5.800%, 06/15/2038		60		66
5.300%, 04/15/2047		805		857
5.250%, 04/15/2029		155		176
5.150%, 02/01/2043		115		118
5.150%, 03/15/2045		200		207
5.000%, 05/15/2050		612		644
4.900%, 03/15/2035		1,000		1,042
3.750%, 05/15/2030		15		16
Energy Transfer Partners
6.625%, 10/15/2036		115		135
6.000%, 06/15/2048		35		40
Eni SpA
5.700%, 10/01/2040 (A)		740		902
Enterprise Products Operating LLC
6.650%, 10/15/2034		1,330		1,856
6.125%, 10/15/2039		420		568
5.700%, 02/15/2042		540		720
5.100%, 02/15/2045		600		765
4.950%, 10/15/2054		545		675
4.900%, 05/15/2046		1,790		2,230
4.850%, 03/15/2044		575		704
4.800%, 02/01/2049		305		385
4.250%, 02/15/2048		355		415
4.200%, 01/31/2050		265		309
EOG Resources
4.950%, 04/15/2050		884		1,214
4.375%, 04/15/2030		520		634

  178   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
EQM Midstream Partners
6.500%, 07/15/2048	$	500	$	495
Equinor
6.800%, 01/15/2028		115		153
3.950%, 05/15/2043		650		798
3.625%, 04/06/2040		2,075		2,472
Exxon Mobil
4.327%, 03/19/2050		875		1,130
4.227%, 03/19/2040		430		531
3.452%, 04/15/2051		4,238		4,827
Halliburton
5.000%, 11/15/2045		35		40
Hess
6.000%, 01/15/2040		45		55
5.800%, 04/01/2047		120		148
5.600%, 02/15/2041		1,560		1,833
Kinder Morgan
5.550%, 06/01/2045		1,185		1,500
5.300%, 12/01/2034		3,131		3,774
5.050%, 02/15/2046		50		60
2.000%, 02/15/2031		160		158
Kinder Morgan Energy Partners
6.375%, 03/01/2041		636		821
5.800%, 03/15/2035		450		560
5.000%, 08/15/2042		700		810
Marathon Oil
5.200%, 06/01/2045		505		551
Marathon Petroleum
6.500%, 03/01/2041		523		665
Motiva Enterprises
6.850%, 01/15/2040 (A)		1,415		1,681
MPLX
5.500%, 02/15/2049		1,175		1,469
5.200%, 03/01/2047		165		196
4.500%, 04/15/2038		675		749
2.650%, 08/15/2030		1,055		1,068
Noble Energy
5.250%, 11/15/2043		1,125		1,559
5.050%, 11/15/2044		270		369
4.950%, 08/15/2047		220		304
4.200%, 10/15/2049		275		346
Northern Natural Gas
4.300%, 01/15/2049 (A)		275		333
Occidental Petroleum
6.139%, 10/10/2036 (B)		3,581		1,611
4.500%, 07/15/2044		375		309
4.400%, 08/15/2049		200		163
4.300%, 08/15/2039		811		669
Petroleos Mexicanos
7.690%, 01/23/2050		160		148
6.950%, 01/28/2060		382		327
6.350%, 02/12/2048		745		624

Description	Face Amount (Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Petroleos Mexicanos MTN
6.750%, 09/21/2047	$	1,555	$	1,337
Phillips 66
5.875%,05/01/2042		810		1,107
4.875%, 11/15/2044		1,345		1,701
Phillips 66 Partners
4.900%, 10/01/2046		1,064		1,145
Plains All American Pipeline
4.900%, 02/15/2045		500		504
Rockies Express Pipeline LLC
6.875%,04/15/2040 (A)		1,135		1,203
Sabal Trail Transmission LLC
4.832%,05/01/2048 (A)		725		912
4.682%,05/01/2038 (A)		455		545
Saudi Arabian Oil MTN
4.375%,04/16/2049 (A)		105		128
Shell International Finance BV
6.375%, 12/15/2038		1,577		2,448
5.500%, 03/25/2040		390		563
4.550%, 08/12/2043		1,485		1,962
4.375%, 05/11/2045		900		1,161
4.000%, 05/10/2046		130		161
3.750%, 09/12/2046		545		651
3.125%, 11/07/2049		435		478
Southern Natural Gas
7.350%, 02/15/2031		1,223		1,647
Suncor Energy
6.800%, 05/15/2038		520		702
6.500%, 06/15/2038		250		334
Sunoco Logistics Partners Operations
5.400%, 10/01/2047		3,495		3,749
5.350%, 05/15/2045		520		544
Tennessee Gas Pipeline
7.000%, 10/15/2028		1,072		1,392
Texas Eastern Transmission
7.000%, 07/15/2032		1,570		2,159
4.150%,01/15/2048 (A)		715		788
Total Capital International
3.386%, 06/29/2060		225		256
3.127%, 05/29/2050		1,610		1,766
2.986%, 06/29/2041		430		466
TransCanada PipeLines
7.250%, 08/15/2038		1,070		1,630
4.875%, 05/15/2048		195		252
4.750%, 05/15/2038		780		969
4.625%, 03/01/2034		1,360		1,624
Transcanada Trust
5.875%, VAR ICE LIBOR USD 3 Month+4.640%, 08/15/2076		1,494		1,658
Transcontinental Gas Pipe Line LLC
5.400%, 08/15/2041		1,115		1,408
4.600%, 03/15/2048		536		629

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   179

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.450%, 08/01/2042	$	705	$	820
Valero Energy
10.500%, 03/15/2039		1,397		2,373
Williams
7.500%, 01/15/2031		395		518
6.300%, 04/15/2040		550		719
5.100%, 09/15/2045		275		332
				113,687
Financials — 10.3%
AIA Group
3.200%, 09/16/2040 (A)		415		443
AIG SunAmerica Global Financing
6.900%, 03/15/2032 (A)		2,042		3,091
American International Group
4.750%, 04/01/2048		105		142
4.500%, 07/16/2044		2,120		2,724
4.375%, 06/30/2050		175		227
4.375%, 01/15/2055		35		45
3.875%, 01/15/2035		1,055		1,270
3.400%, 06/30/2030		30		34
Banco Santander
3.490%, 05/28/2030		265		296
Bank of America
6.110%, 01/29/2037		660		970
6.000%, 10/15/2036		2,950		4,337
Bank of America MTN
5.875%, 02/07/2042		2,445		3,773
4.330%, VAR ICE LIBOR USD 3 Month+1.520%, 03/15/2050		915		1,211
4.083%, VAR ICE LIBOR USD 3 Month+3.150%, 03/20/2051		500		637
4.078%, VAR ICE LIBOR USD 3 Month+1.320%, 04/23/2040		2,555		3,159
3.974%, VAR ICE LIBOR USD 3 Month+1.210%, 02/07/2030		440		516
2.884%, VAR ICE LIBOR USD 3 Month+1.190%, 10/22/2030		945		1,034
2.676%, VAR United States Secured Overnight Financing Rate+1.930%, 06/19/2041		600		624
Berkshire Hathaway
4.500%, 02/11/2043		758		1,046
Berkshire Hathaway Finance
4.400%, 05/15/2042		1,300		1,746
4.200%, 08/15/2048		1,600		2,148
Blackstone Holdings Finance LLC
6.250%, 08/15/2042 (A)		1,569		2,353
Brighthouse Financial
4.700%, 06/22/2047		876		906
Carlyle Holdings II Finance LLC
5.625%, 03/30/2043 (A)		1,263		1,616

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Chubb INA Holdings
6.700%, 05/15/2036	$	627	$	982
Cincinnati Financial
6.920%, 05/15/2028		1,984		2,633
Citigroup
6.625%, 06/15/2032		1,075		1,532
4.750%, 05/18/2046		1,425		1,914
4.650%, 07/23/2048		735		1,022
4.281%, VAR ICE LIBOR USD 3 Month+1.839%, 04/24/2048		1,118		1,468
4.125%, 07/25/2028		530		618
2.976%, VAR United States Secured Overnight Financing Rate+1.422%, 11/05/2030		500		547
Commonwealth Bank of Australia MTN
3.743%, 09/12/2039 (A)		415		479
Cooperatieve Rabobank UA
5.250%, 08/04/2045		155		223
Empower Finance 2020
1.776%, 03/17/2031 (A)		140		143
Farmers Exchange Capital
7.200%, 07/15/2048 (A)		225		297
Farmers Exchange Capital II
6.151%, VAR ICE LIBOR USD 3 Month+3.744%, 11/01/2053 (A)		925		1,179
Farmers Exchange Capital III
5.454%, VAR ICE LIBOR USD 3 Month+3.454%, 10/15/2054 (A)		700		832
Fifth Third Bancorp
8.250%, 03/01/2038		286		484
First Republic Bank
4.625%, 02/13/2047		567		722
FMR
5.150%, 02/01/2043 (A)		540		751
Goldman Sachs Group
6.750%, 10/01/2037		1,570		2,406
6.250%, 02/01/2041		2,036		3,209
4.750%, 10/21/2045		50		70
4.411%, VAR ICE LIBOR USD 3 Month+1.430%, 04/23/2039		615		788
4.017%, VAR ICE LIBOR USD 3 Month+1.373%, 10/31/2038		3,895		4,799
Goldman Sachs Group MTN
4.800%, 07/08/2044		1,034		1,440
Guardian Life Insurance of America
4.875%, 06/19/2064 (A)		1,210		1,640
Hartford Financial Services Group
6.625%, 03/30/2040		440		672
HSBC Bank USA
7.000%, 01/15/2039		485		762
HSBC Holdings
6.800%, 06/01/2038		1,067		1,591
6.500%, 09/15/2037		2,200		3,167

  180   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.950%, 03/31/2030	$	230	$	287
Intercontinental Exchange
3.000%, 09/15/2060		935		990
2.650%, 09/15/2040		450		468
JPMorgan Chase
6.400%, 05/15/2038		150		237
5.600%, 07/15/2041		1,296		1,980
4.032%, VAR ICE LIBOR USD 3 Month+1.460%, 07/24/2048		760		977
3.964%, VAR ICE LIBOR USD 3 Month+1.380%, 11/15/2048		1,465		1,867
3.897%, VAR ICE LIBOR USD 3 Month+1.220%, 01/23/2049		1,955		2,487
3.109%, VAR United States Secured Overnight Financing Rate+2.440%, 04/22/2051		2,025		2,262
3.109%, VAR United States Secured Overnight Financing Rate+2.460%, 04/22/2041		715		797
2.956%, VAR United States Secured Overnight Financing Rate+2.515%, 05/13/2031		420		459
2.739%, VAR United States Secured Overnight Financing Rate+1.510%, 10/15/2030		1,505		1,632
KKR Group Finance II LLC
5.500%, 02/01/2043 (A)		1,545		2,064
Liberty Mutual Group
3.951%, 10/15/2050 (A)		2,200		2,651
3.950%, 05/15/2060 (A)		590		704
Lloyds Banking Group
4.344%, 01/09/2048		391		488
3.574%, VAR ICE LIBOR USD 3 Month+1.205%, 11/07/2028		745		836
Markel
4.150%, 09/17/2050		1,635		2,074
Marsh & McLennan
4.750%, 03/15/2039		909		1,230
4.200%, 03/01/2048		720		955
Massachusetts Mutual Life Insurance
3.729%, 10/15/2070 (A)		528		589
3.375%, 04/15/2050 (A)		792		857
MetLife
5.875%, 02/06/2041		280		432
4.875%, 11/13/2043		795		1,128
4.721%, 12/15/2044		255		352
4.050%, 03/01/2045		1,481		1,906
Mitsubishi UFJ Financial Group
4.153%, 03/07/2039		340		424
Moody’s
4.875%, 12/17/2048		1,055		1,449
Morgan Stanley
4.375%, 01/22/2047		105		145

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.625%, 01/20/2027	$	370	$	423
Morgan Stanley MTN
6.375%, 07/24/2042		794		1,300
5.597%, VAR United States Secured Overnight Financing Rate+4.840%, 03/24/2051		135		218
4.300%, 01/27/2045		1,000		1,358
3.971%, VAR ICE LIBOR USD 3 Month+1.455%, 07/22/2038		545		675
National Rural Utilities Cooperative Finance
4.300%, 03/15/2049		975		1,289
Nationwide Financial Services
3.900%, 11/30/2049 (A)		495		540
Nationwide Mutual Insurance
4.950%, 04/22/2044 (A)		125		139
4.350%, 04/30/2050 (A)		320		375
New York Life Insurance
6.750%, 11/15/2039 (A)		845		1,303
5.875%, 05/15/2033 (A)		852		1,180
4.450%, 05/15/2069 (A)		950		1,286
3.750%, 05/15/2050 (A)		351		419
Northwestern Mutual Life Insurance
3.625%, 09/30/2059 (A)		1,008		1,160
Pacific LifeCorp
3.350%, 09/15/2050 (A)		1,170		1,316
Prudential Financial MTN
5.700%, 12/14/2036		1,357		1,967
Raymond James Financial
4.950%, 07/15/2046		935		1,285
S&P Global
3.250%, 12/01/2049		250		290
Teachers Insurance & Annuity Association of America
3.300%, 05/15/2050 (A)		1,000		1,091
Travelers
4.000%, 05/30/2047		665		866
US Bancorp MTN
1.375%, 07/22/2030		880		883
Wells Fargo
5.850%, 02/01/2037		3,790		5,347
5.606%, 01/15/2044		230		329
3.900%, 05/01/2045		548		683
Wells Fargo MTN
5.013%, VAR ICE LIBOR USD 3 Month+4.240%, 04/04/2051		4,124		5,889
4.900%, 11/17/2045		365		488
4.650%, 11/04/2044		1,370		1,767
4.400%, 06/14/2046		1,175		1,490
2.879%, VAR ICE LIBOR USD 3 Month+1.170%, 10/30/2030		455		495
Westpac Banking
4.421%, 07/24/2039		215		279

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   181

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
2.963%, 11/16/2040	$	125	$	135
2.668%, VAR US Treas Yield Curve Rate T Note Const Mat 5 Yr+1.750%, 11/15/2035		220		228
Willis North America
3.875%, 09/15/2049		710		875
XLIT
5.250%, 12/15/2043		587		843
				141,656
Health Care — 6.6%
Abbott Laboratories
4.900%, 11/30/2046		944		1,411
AbbVie Inc
4.875%, 11/14/2048		905		1,233
4.850%, 06/15/2044		650		857
4.700%, 05/14/2045		1,155		1,505
4.550%, 03/15/2035		2,030		2,573
4.500%, 05/14/2035		1,795		2,283
4.450%, 05/14/2046		800		1,015
4.400%, 11/06/2042		1,939		2,439
4.250%, 11/21/2049		1,531		1,934
4.050%, 11/21/2039		450		546
Amgen
4.950%, 10/01/2041		825		1,120
4.663%, 06/15/2051		1,650		2,233
4.400%, 05/01/2045		2,555		3,252
3.150%, 02/21/2040		886		960
Anthem
4.650%, 01/15/2043		270		356
4.650%, 08/15/2044		305		404
4.550%, 03/01/2048		80		108
4.375%, 12/01/2047		2,888		3,782
3.700%, 09/15/2049		700		838
AstraZeneca
6.450%, 09/15/2037		1,721		2,683
Becton Dickinson
3.794%, 05/20/2050		860		1,016
Biogen
5.200%, 09/15/2045		90		120
3.150%, 05/01/2050		370		372
Boston Scientific
4.550%, 03/01/2039		560		718
Bristol-Myers Squibb
4.550%, 02/20/2048		524		734
4.250%, 10/26/2049		1,490		2,018
2.550%, 11/13/2050		375		387
2.350%, 11/13/2040		110		113
Centene Corp
3.000%, 10/15/2030		1,851		1,948
Cigna
4.900%, 12/15/2048		100		138

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.800%, 08/15/2038	$	620	$	808
4.800%, 07/15/2046		1,203		1,602
3.875%, 10/15/2047		750		900
3.400%, 03/15/2050		590		667
3.200%, 03/15/2040		215		239
Cleveland Clinic Foundation
4.858%, 01/01/2114		570		801
CVS Health Corp
5.125%, 07/20/2045		720		970
5.050%, 03/25/2048		5,435		7,332
4.780%, 03/25/2038		2,680		3,400
4.250%, 04/01/2050		283		355
4.125%, 04/01/2040		595		710
2.700%, 08/21/2040		425		429
Danaher
2.600%, 10/01/2050		340		358
Gilead Sciences
4.800%, 04/01/2044		529		695
4.750%, 03/01/2046		5		7
4.600%, 09/01/2035		1,080		1,399
4.500%, 02/01/2045		1,570		2,007
GlaxoSmithKline Capital
6.375%, 05/15/2038		590		937
Hartford HealthCare
5.746%, 04/01/2044		1,200		1,555
HCA
5.250%, 06/15/2049		1,890		2,501
Humana
4.950%, 10/01/2044		740		1,002
3.950%, 08/15/2049		340		420
Johnson & Johnson
3.400%, 01/15/2038		790		952
Kaiser Foundation Hospitals
4.875%, 04/01/2042		185		251
Medtronic
4.375%, 03/15/2035		886		1,216
Merck
4.150%, 05/18/2043		605		801
2.450%, 06/24/2050		530		550
2.350%, 06/24/2040		340		355
Mylan
5.250%, 06/15/2046		315		416
Pfizer
4.000%, 12/15/2036		1,010		1,289
2.700%, 05/28/2050		310		330
2.550%, 05/28/2040		170		180
Royalty Pharma
3.300%, 09/02/2040 (A)		500		522
Stryker
4.100%, 04/01/2043		805		981
2.900%, 06/15/2050		195		208

  182   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Thermo Fisher Scientific
4.100%, 08/15/2047	$	495	$	658
UnitedHealth Group
6.875%, 02/15/2038		885		1,458
6.625%, 11/15/2037		555		896
4.625%, 07/15/2035		730		990
4.250%, 04/15/2047		1,075		1,443
4.200%, 01/15/2047		925		1,244
3.875%, 08/15/2059		345		455
3.700%, 08/15/2049		656		831
2.900%, 05/15/2050		150		167
2.750%, 05/15/2040		145		159
Upjohn
4.000%, 06/22/2050 (A)		730		833
Viatris
3.850%, 06/22/2040 (A)		935		1,057
Wyeth LLC
6.000%, 02/15/2036		1,800		2,673
5.950%, 04/01/2037		536		808
Zoetis
4.450%, 08/20/2048		205		274
3.000%, 05/15/2050		270		295
				90,482
Industrials — 7.1%
3M
3.250%, 08/26/2049		610		707
3.050%, 04/15/2030		135		154
AerCap Ireland Capital DAC
3.875%, 01/23/2028		695		709
Air Lease
3.250%, 10/01/2029		255		261
Air Lease MTN
3.000%, 02/01/2030		180		180
American Airlines, Pass-Through Trust, Ser 2011-1, Cl A
5.250%, 01/31/2021		1		1
BAE Systems Holdings
4.750%, 10/07/2044 (A)		828		1,093
BAE Systems PLC
5.800%, 10/11/2041 (A)		290		417
3.000%, 09/15/2050 (A)		850		899
Boeing
5.805%, 05/01/2050		2,731		3,612
5.705%, 05/01/2040		3,780		4,779
3.750%, 02/01/2050		420		422
Burlington Northern Santa Fe LLC
6.200%, 08/15/2036		1,650		2,484
6.150%, 05/01/2037		685		1,042
5.750%, 05/01/2040		185		277
5.050%, 03/01/2041		205		288
4.900%, 04/01/2044		130		185

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.400%, 03/15/2042	$	2,340	$	3,084
4.125%, 06/15/2047		800		1,081
3.050%, 02/15/2051		1,520		1,757
Canadian National Railway
6.200%, 06/01/2036		511		777
3.650%, 02/03/2048		575		718
2.450%, 05/01/2050		1,065		1,097
Canadian Pacific Railway
6.125%, 09/15/2115		2,332		3,765
Carrier Global
3.577%, 04/05/2050 (A)		285		322
3.377%, 04/05/2040 (A)		275		303
Caterpillar
3.250%, 09/19/2049		355		420
3.250%, 04/09/2050		1,090		1,290
Continental Airlines, Pass-Through Trust, Ser 2007-1, Cl A
5.983%, 04/19/2022		3,065		3,062
Crane
4.200%, 03/15/2048		450		485
CSX
4.750%, 05/30/2042		1,420		1,871
Deere
3.750%, 04/15/2050		706		919
3.100%, 04/15/2030		230		265
Emerson Electric
2.750%, 10/15/2050		295		316
FedEx
5.100%, 01/15/2044		125		169
4.550%, 04/01/2046		1,673		2,153
4.400%, 01/15/2047		405		510
4.050%, 02/15/2048		210		255
3.900%, 02/01/2035		700		843
GE Capital Funding LLC
4.400%, 05/15/2030 (A)		840		968
GE Capital International Funding Unlimited
4.418%, 11/15/2035		6,086		7,016
General Dynamics
4.250%, 04/01/2040		805		1,058
4.250%, 04/01/2050		155		215
General Electric
4.250%, 05/01/2040		1,140		1,298
General Electric MTN
5.875%, 01/14/2038		4,135		5,357
0.701%, VAR ICE LIBOR USD 3 Month+0.480%, 08/15/2036		1,250		872
Johnson Controls International
4.950%, 07/02/2064		225		299
Kansas City Southern
4.200%, 11/15/2069		453		522
Lockheed Martin
4.700%, 05/15/2046		1,461		2,070

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   183

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.070%, 12/15/2042	$	600	$	781
3.600%, 03/01/2035		1,085		1,340
Norfolk Southern
5.100%, 08/01/2118		910		1,178
4.800%, 08/15/2043		528		659
4.450%, 06/15/2045		602		791
4.050%, 08/15/2052		664		856
3.942%, 11/01/2047		646		801
3.155%, 05/15/2055		839		940
Northrop Grumman
4.750%, 06/01/2043		1,275		1,726
4.030%, 10/15/2047		345		438
3.850%, 04/15/2045		1,100		1,344
Northwest Airlines, Pass-Through Trust, Ser 2001-1, Cl A1
7.041%, 04/01/2022		168		166
Otis Worldwide
3.362%, 02/15/2050		100		115
Parker-Hannifin
4.000%, 06/14/2049		450		566
Parker-Hannifin MTN
4.450%, 11/21/2044		405		519
Raytheon Technologies
5.700%, 04/15/2040		1,635		2,422
4.625%, 11/16/2048		105		146
4.500%, 06/01/2042		2,200		2,910
4.350%, 04/15/2047 (A)		900		1,158
3.750%, 11/01/2046		49		60
Snap-on
3.100%, 05/01/2050		571		645
Trane Technologies Global Holding
4.300%, 02/21/2048		380		483
TTX
4.600%, 02/01/2049 (A)		844		1,155
Union Pacific
4.500%, 09/10/2048		175		236
3.839%, 03/20/2060		2,410		2,969
3.799%, 10/01/2051		555		684
3.750%, 02/05/2070		110		131
3.250%, 02/05/2050		2,356		2,704
2.973%, 09/16/2062 (A)		793		843
Union Pacific MTN
3.550%, 08/15/2039		620		725
United Airlines Pass-Through Trust, Ser 2019-1, Cl AA
4.150%, 08/25/2031		398		396
United Parcel Service
3.750%, 11/15/2047		595		748
US Airways, Pass-Through Trust, Ser 2010-1, Cl A
6.250%, 04/22/2023		773		723

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Waste Connections
3.050%, 04/01/2050	$	450	$	490
Waste Management
4.150%, 07/15/2049		615		816
3.900%, 03/01/2035		360		445
WW Grainger
4.600%, 06/15/2045		340		455
4.200%, 05/15/2047		797		1,005
				97,216
Information Technology — 4.0%
Activision Blizzard
4.500%, 06/15/2047		295		380
Apple
4.650%, 02/23/2046		1,489		2,149
4.500%, 02/23/2036		660		896
4.450%, 05/06/2044		765		1,054
4.375%, 05/13/2045		2,375		3,297
3.850%, 05/04/2043		145		187
3.750%, 09/12/2047		250		318
3.450%, 02/09/2045		1,455		1,785
2.950%, 09/11/2049		350		400
2.550%, 08/20/2060		985		1,017
Applied Materials
4.350%, 04/01/2047		461		638
Broadcom
4.300%, 11/15/2032		230		275
Cisco Systems
5.900%, 02/15/2039		751		1,160
Corning
5.850%, 11/15/2068		579		829
5.450%, 11/15/2079		925		1,271
Deutsche Telekom
3.625%, 01/21/2050 (A)		615		716
Fiserv
4.400%, 07/01/2049		1,140		1,512
Intel
4.750%, 03/25/2050		1,025		1,450
3.734%, 12/08/2047		1,615		1,980
3.250%, 11/15/2049		1,090		1,256
Juniper Networks
5.950%, 03/15/2041		575		757
KLA
5.000%, 03/15/2049		527		737
Lam Research
2.875%, 06/15/2050		557		603
Mastercard Inc
3.850%, 03/26/2050		1,430		1,868
3.650%, 06/01/2049		415		519
Microsoft
4.250%, 02/06/2047		863		1,208
4.100%, 02/06/2037		1,243		1,634

  184   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.000%, 02/12/2055	$	744	$	1,046
3.950%, 08/08/2056		718		988
3.700%, 08/08/2046		1,805		2,325
3.450%, 08/08/2036		525		650
2.675%, 06/01/2060		1,217		1,337
2.525%, 06/01/2050		1,672		1,801
NVIDIA
3.700%, 04/01/2060		45		58
3.500%, 04/01/2040		670		813
3.500%, 04/01/2050		1,007		1,226
Oracle
4.375%, 05/15/2055		1,260		1,649
4.300%, 07/08/2034		225		287
4.125%, 05/15/2045		1,180		1,453
4.000%, 07/15/2046		1,490		1,818
4.000%, 11/15/2047		590		722
3.900%, 05/15/2035		40		49
3.800%, 11/15/2037		2,170		2,600
3.600%, 04/01/2040		960		1,119
3.600%, 04/01/2050		1,240		1,449
PayPal Holdings
3.250%, 06/01/2050		495		569
Texas Instruments
4.150%, 05/15/2048		367		506
Visa
4.300%, 12/14/2045		955		1,317
4.150%, 12/14/2035		505		658
2.700%, 04/15/2040		525		583
				54,919
Materials — 1.1%
Air Products and Chemicals
2.700%, 05/15/2040		220		238
Barrick Gold
5.250%, 04/01/2042		120		167
BHP Billiton Finance USA
5.000%, 09/30/2043		655		957
Dow Chemical
3.600%, 11/15/2050		980		1,091
DuPont de Nemours
5.419%, 11/15/2048		440		635
5.319%, 11/15/2038		985		1,344
FMC
4.500%, 10/01/2049		605		768
Glencore Finance Canada
6.000%, 11/15/2041 (A)		1,026		1,282
International Flavors & Fragrances
5.000%, 09/26/2048		1,175		1,568
International Paper
5.150%, 05/15/2046		390		550
LYB International Finance III LLC
4.200%, 10/15/2049		870		1,015

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.200%, 05/01/2050	$	265	$	308
3.625%, 04/01/2051		370		400
Newmont Goldcorp
6.250%, 10/01/2039		920		1,396
5.875%, 04/01/2035		185		267
Nutrition & Biosciences
3.468%, 12/01/2050 (A)		1,665		1,819
3.268%, 11/15/2040 (A)		315		340
Sherwin-Williams
3.300%, 05/15/2050		340		385
Vulcan Materials
4.500%, 06/15/2047		160		198
WRKCo
4.200%, 06/01/2032		470		568
				15,296
Real Estate — 1.7%
Agree
2.900%, 10/01/2030		395		414
American Campus Communities Operating Partnership
2.850%, 02/01/2030		540		557
American Tower
3.100%, 06/15/2050		190		197
AvalonBay Communities MTN
4.350%, 04/15/2048		80		103
Boston Properties
2.900%, 03/15/2030		325		345
CyrusOne
3.450%, 11/15/2029		1,920		2,054
Equinix
2.950%, 09/15/2051		825		851
Essex Portfolio
2.650%, 09/01/2050		415		400
GLP Capital
5.300%, 01/15/2029		965		1,108
4.000%, 01/15/2031		600		649
Healthpeak Properties
6.750%, 02/01/2041		180		264
Hudson Pacific Properties
4.650%, 04/01/2029		390		450
3.250%, 01/15/2030		355		372
National Retail Properties
4.800%, 10/15/2048		335		399
3.100%, 04/15/2050		470		438
Regency Centers
4.650%, 03/15/2049		635		753
4.400%, 02/01/2047		300		341
Simon Property Group
4.750%, 03/15/2042		45		53
Simon Property Group LP
6.750%, 02/01/2040		634		910

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   185

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.250%, 11/30/2046	$	85	$	96
3.800%, 07/15/2050		1,490		1,606
3.250%, 09/13/2049		650		637
2.650%, 07/15/2030		670		704
Spirit Realty
3.400%, 01/15/2030		590		628
3.200%, 02/15/2031		960		1,004
Ventas Realty
5.700%, 09/30/2043		2,537		3,264
VEREIT Operating Partnership
2.850%, 12/15/2032		205		210
Welltower
5.125%, 03/15/2043		2,499		3,009
4.950%, 09/01/2048		722		928
WP Carey
2.400%, 02/01/2031		185		189
				22,933
Utilities — 9.0%
AEP Transmission LLC
3.800%, 06/15/2049		405		499
AES
2.450%, 01/15/2031 (A)		425		432
Alabama Power
4.300%, 07/15/2048		745		1,002
4.150%, 08/15/2044		1,045		1,321
3.700%, 12/01/2047		1,061		1,300
American Water Capital
4.150%, 06/01/2049		485		639
3.750%, 09/01/2047		180		221
3.450%, 05/01/2050		1,230		1,465
Appalachian Power
4.500%, 03/01/2049		500		645
4.450%, 06/01/2045		650		832
Baltimore Gas & Electric
5.200%, 06/15/2033		1,238		1,535
2.900%, 06/15/2050		420		448
Berkshire Hathaway Energy
6.125%, 04/01/2036		4,966		7,441
Black Hills
4.350%, 05/01/2033		495		594
4.200%, 09/15/2046		500		602
Brooklyn Union Gas
4.273%, 03/15/2048 (A)		710		904
CenterPoint Energy Houston Electric LLC
2.900%, 07/01/2050		335		365
CenterPoint Energy Resources
6.250%, 02/01/2037		791		1,057
Cleco Power
6.000%, 12/01/2040		750		1,009
Commonwealth Edison
4.350%, 11/15/2045		1,530		2,022

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.000%, 03/01/2048	$	690	$	880
3.700%, 03/01/2045		600		723
3.200%, 11/15/2049		445		500
Connecticut Light & Power
4.000%, 04/01/2048		500		650
Consolidated Edison of New York
6.750%, 04/01/2038		525		825
6.300%, 08/15/2037		865		1,261
4.500%, 05/15/2058		750		1,014
4.450%, 03/15/2044		245		313
3.950%, 04/01/2050		505		627
3.850%, 06/15/2046		500		598
3.700%, 11/15/2059		600		702
Consumers Energy
3.100%, 08/15/2050		460		531
2.500%, 05/01/2060		300		303
Dominion Energy
5.250%, 08/01/2033		2,830		3,643
4.900%, 08/01/2041		1,785		2,347
DTE Electric
4.050%, 05/15/2048		480		632
Duke Energy Carolinas LLC
6.100%, 06/01/2037		1,690		2,532
6.000%, 01/15/2038		614		922
5.300%, 02/15/2040		1,880		2,680
4.250%, 12/15/2041		1,250		1,593
3.200%, 08/15/2049		20		23
Duke Energy Florida LLC
6.350%, 09/15/2037		450		688
1.750%, 06/15/2030		610		627
Duke Energy Indiana LLC
6.350%, 08/15/2038		310		474
4.900%, 07/15/2043		750		1,019
3.750%, 05/15/2046		845		1,017
Duke Energy Ohio
2.125%, 06/01/2030		315		331
Duke Energy Progress LLC
4.375%, 03/30/2044		2,345		3,067
Duquesne Light Holdings
5.900%, 12/01/2021 (A)		750		784
Electricite de France
6.000%, 01/22/2114 (A)		495		713
5.000%, 09/21/2048 (A)		730		977
4.950%, 10/13/2045 (A)		640		830
4.750%, 10/13/2035 (A)		245		306
Elm Road Generating Station Supercritical
5.848%, 01/19/2041 (A)		2,007		2,525
Entergy LLC
3.750%, 06/15/2050		504		600
Entergy Louisiana LLC
4.200%, 04/01/2050		795		1,034

  186   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Entergy Texas
3.550%, 09/30/2049	$	475	$	546
Evergy Missouri West
8.270%, 11/15/2021		2,600		2,777
Exelon
4.950%, 06/15/2035		1,260		1,603
Exelon Generation LLC
5.600%, 06/15/2042		1,140		1,281
Florida Power & Light
5.960%, 04/01/2039		980		1,490
5.690%, 03/01/2040		1,201		1,792
5.400%, 09/01/2035		2,315		3,347
3.990%, 03/01/2049		360		471
Georgia Power
4.300%, 03/15/2042		630		791
3.700%, 01/30/2050		1,595		1,929
Indianapolis Power & Light
6.050%, 10/01/2036 (A)		1,131		1,583
4.700%, 09/01/2045 (A)		280		360
Jersey Central Power & Light
6.400%, 05/15/2036		1,425		1,850
KeySpan Gas East
5.819%, 04/01/2041 (A)		1,185		1,678
Massachusetts Electric
5.900%, 11/15/2039 (A)		476		698
MidAmerican Energy
4.800%, 09/15/2043		725		985
4.400%, 10/15/2044		950		1,249
4.250%, 05/01/2046		565		728
MidAmerican Energy MTN
5.800%, 10/15/2036		425		624
Narragansett Electric
4.170%, 12/10/2042 (A)		1,320		1,589
NiSource
5.950%, 06/15/2041		417		596
Northern States Power
5.350%, 11/01/2039		2,095		3,051
3.400%, 08/15/2042		490		573
NSTAR Electric
4.400%, 03/01/2044		755		977
Oglethorpe Power
5.250%, 09/01/2050		1,051		1,322
5.050%, 10/01/2048		970		1,221
Oncor Electric Delivery LLC
5.350%, 10/01/2052 (A)		630		973
5.300%, 06/01/2042		365		520
5.250%, 09/30/2040		1,200		1,658
Pacific Gas and Electric
3.500%, 08/01/2050		675		681
3.300%, 08/01/2040		205		206
2.500%, 02/01/2031		335		337

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
PacifiCorp
6.000%, 01/15/2039	$	555	$	832
PECO Energy
3.900%, 03/01/2048		520		660
Piedmont Natural Gas
4.650%, 08/01/2043		330		428
PPL Electric Utilities
4.150%, 06/15/2048		530		693
4.125%, 06/15/2044		870		1,091
Public Service Electric & Gas MTN
4.050%, 05/01/2048		480		630
Public Service of Colorado
6.500%, 08/01/2038		725		1,136
6.250%, 09/01/2037		750		1,149
4.050%, 09/15/2049		138		181
Puget Sound Energy
4.223%, 06/15/2048		880		1,133
San Diego Gas & Electric
3.320%, 04/15/2050		587		660
Sempra Energy
6.000%, 10/15/2039		865		1,237
3.800%, 02/01/2038		785		914
Southern California Edison
6.050%, 03/15/2039		665		904
3.900%, 03/15/2043		245		275
3.650%, 02/01/2050		120		140
Southern California Gas
3.750%, 09/15/2042		660		788
Southern Gas Capital
5.875%, 03/15/2041		1,568		2,226
4.400%, 06/01/2043		395		482
Southwestern Electric Power
6.200%, 03/15/2040		1,610		2,336
Southwestern Public Service
4.400%, 11/15/2048		550		726
Tampa Electric
4.300%, 06/15/2048		1,070		1,371
Virginia Electric & Power
4.450%, 02/15/2044		750		1,020
Wisconsin Public Service
3.300%, 09/01/2049		175		199
				123,321
Total Corporate Obligations (Cost $749,987) ($ Thousands)				919,071
U.S. TREASURY OBLIGATIONS — 22.2%
U.S. Treasury Bills
0.180%, 12/03/2020 (B)		5,725		5,725
0.147%, 01/07/2021 (B)		2,690		2,690
0.124%, 01/21/2021 (B)		4,455		4,454

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   187

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
U.S. TREASURY OBLIGATIONS (continued)
0.120%, 01/14/2021 (B)	$	3,840	$	3,840
0.110%, 01/28/2021 (B)		1,075		1,075
0.101%, 01/26/2021 (B)		2,825		2,825
U.S. Treasury Bonds
3.750%, 08/15/2041		1,865		2,686
3.750%, 11/15/2043		2,295		3,349
3.625%, 08/15/2043		2,067		2,960
3.625%, 02/15/2044		8,076		11,593
3.500%, 02/15/2039		5,502		7,575
3.125%, 11/15/2041		2,455		3,256
3.125%, 02/15/2043		2,960		3,939
3.125%, 08/15/2044		4,405		5,889
3.000%, 11/15/2044		7,010		9,197
3.000%, 05/15/2045		7,660		10,073
3.000%, 05/15/2047		3,420		4,541
3.000%, 02/15/2048		4,513		6,009
2.875%, 11/15/2046		4,080		5,287
2.750%, 08/15/2042		4,210		5,292
2.750%, 11/15/2042		7,005		8,800
2.750%, 11/15/2047		5,700		7,260
2.500%, 05/15/2046		6,740		8,168
2.250%, 08/15/2049		5,523		6,421
1.625%, 11/15/2050		42,455		43,006
1.375%, 11/15/2040		18,210		18,244
1.375%, 08/15/2050		27,032		25,740
1.250%, 05/15/2050		37,342		34,454
1.125%, 05/15/2040		19,275		18,549
1.125%, 08/15/2040		4,806		4,612
U.S. Treasury Inflation-Protected Securities
1.000%, 02/15/2049		2,773		3,886
U.S. Treasury Notes
0.875%, 11/15/2030		435		436
0.625%, 11/30/2027		9,415		9,424
0.625%, 05/15/2030		3,524		3,464
0.625%, 08/15/2030		2,899		2,843
U.S. Treasury STRIPS
3.127%, 08/15/2043 (B)		9,912		7,065
Total U.S. Treasury Obligations (Cost $283,330) ($ Thousands)				304,627
MUNICIPAL BONDS — 5.1%
California — 2.3%
Bay Area, Toll Authority, Build America Project, RB
6.263%, 04/01/2049		600		1,037
California State University, Ser H, RB
6.548%, 05/15/2048		1,430		2,304
California State, Build America Project, GO
7.500%, 04/01/2034		3,425		5,635

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MUNICIPAL BONDS (continued)
Los Angeles, Community College District, Build America Project, GO
6.750%, 08/01/2049	$	590	$	1,057
Los Angeles, Department of Water & Power, Build America Project, RB
6.008%, 07/01/2039		3,000		4,122
Los Angeles, Unified School District, Build America Project, GO
5.750%, 07/01/2034		2,235		3,079
Los Angeles, Unified School District, Build America Project, Ser RY, GO
6.758%, 07/01/2034		1,360		2,001
Regents of the University of California, Ser N, RB Callable 11/15/2059 @ 100
3.256%, 05/15/2060		1,710		1,853
Riverside County, Pension Obligation, RB
3.818%, 02/15/2038		345		381
San Francisco Bay Area, Rapid Transit District, Ser C-1, GO Callable 08/01/2029 @ 100
3.000%, 08/01/2050		275		296
San Francisco, City & County Airport, Build America Project, Ser A, AMT, RB Callable 05/01/2029 @ 100
5.000%, 05/01/2049		710		871
San Francisco, Public Utilities Commission, Water Revenue, Build America Project,Ser DE, RB
6.000%, 11/01/2040		3,805		5,400
State of California, Build America Project, GO
7.350%, 11/01/2039		1,645		2,724
University of California, Ser AD, RB
4.858%, 05/15/2112		825		1,161
University of California, Ser AP, RB
3.931%, 05/15/2045		475		552
				32,473
District of Columbia — 0.2%
District of Columbia, Water & Sewer Authority, RB
4.814%, 10/01/2114		1,505		2,216
Florida — 0.1%
City of Gainesville, Build America Project, RB
6.024%, 10/01/2040		650		1,010
Georgia — 0.1%
Georgia State, Municipal Electric Authority, Build America Project, RB
6.637%, 04/01/2057		619		928

  188   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MUNICIPAL BONDS (continued)
Illinois — 0.2%
Greater Chicago, Metropolitan Water Reclamation District, GO
5.720%, 12/01/2038	$	1,480	$	2,098
Illinois State, Finance Authority, RB Callable 06/01/2022 @ 100
4.000%, 06/01/2047		445		457
				2,555
Maryland — 0.0%
Baltimore, Revenue Authority, Water Project, Ser B, RB Callable 07/01/2030 @ 100
2.814%, 07/01/2040		370		379
Massachusetts — 0.0%
Massachusetts State, Ser C, GO Callable 03/01/2030 @ 100
3.000%, 03/01/2048		415		453
Michigan — 0.2%
Michigan State University, Build America Project, RB Callable 02/15/2030 @ 100
6.173%, 02/15/2050		2,000		2,522
Missouri — 0.1%
Missouri State, Health and Education Facilities, RB Callable 02/15/2057 @ 100
3.652%, 08/15/2057		330		415
Missouri State, Joint Municipal Electric Utility Commission, Build America Project, Ser A, RB
6.890%, 01/01/2042		600		906
				1,321
New Jersey — 0.1%
New Jersey State, Turnpike Authority, Build America Project, RB
7.414%, 01/01/2040		60		100
New Jersey State, Turnpike Authority, Ser F, RB
3.729%, 01/01/2036		1,085		1,279
				1,379
New York — 1.1%
Metropolitan Transportation Authority, Build America Project, RB
6.548%, 11/15/2031		500		592
New York & New Jersey, Port Authority, RB
4.458%, 10/01/2062		1,240		1,615

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MUNICIPAL BONDS (continued)
New York City, Municipal Water Finance Authority, Build America Project, RB
5.440%, 06/15/2043	$	910	$	1,386
New York City, Transitional Finance Authority, Build America Project, RB
5.572%, 11/01/2038		885		1,190
New York City, Transitional Finance Authority, Future Tax Secured Revenue, Build America Project, RB
5.508%, 08/01/2037		1,000		1,357
New York City, Water & Sewer System, RB Pre-Refunded @ 100
5.375%, 12/15/2020 (C)		395		396
New York City, Water & Sewer System, RB Callable 12/15/2020 @ 100
5.375%, 06/15/2043		205		205
New York State, Dormitory Authority, Build America Project, RB
5.289%, 03/15/2033		1,550		1,928
New York State, Dormitory Authority, Build America Project, Ser D, RB
5.500%, 03/15/2030		2,645		3,204
New York State, Dormitory Authority, Ser F, RB
3.110%, 02/15/2039		1,215		1,303
New York State, Urban Development, RB
5.770%, 03/15/2039		1,470		1,882
				15,058
Ohio — 0.2%
JobsOhio Beverage System, Ser A, RB
2.833%, 01/01/2038		325		350
Ohio State University, Build America Project, GO
4.910%, 06/01/2040		535		747
Ohio State University, Build America Project, Ser A, RB
4.800%, 06/01/2111		115		166
Ohio State, Hospital Facilities Revenue Authority, Cleveland Clinic, RB
2.885%, 01/01/2032		950		1,057
				2,320
Texas — 0.5%
Grand Parkway, Transportation Corp, Ser E, RB
5.184%, 10/01/2042		930		1,318
North Texas, Tollway Authority, Build America Project, RB
6.718%, 01/01/2049		490		849
North Texas, Tollway Authority, RB Callable 01/01/2029 @ 100
3.029%, 01/01/2040		735		757

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   189

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MUNICIPAL BONDS (continued)
Permanent University Fund - University of Texas, Ser A, RB
3.500%, 08/15/2050	$	1,090	$	1,382
Permanent University Fund - University of Texas, Ser S, RB Callable 01/01/2047 @ 100
3.376%, 07/01/2047		560		674
Texas State, Private Activity Bond Surface Transportation, RB
3.922%, 12/31/2049		355		390
Texas State, Transportation Commission State Highway Fund, Ser B, RB
5.178%, 04/01/2030		815		1,047
University of Texas, RB
5.262%, 07/01/2039		575		840
				7,257
Total Municipal Bonds (Cost $57,090) ($ Thousands)				69,871
U.S. GOVERNMENT AGENCY OBLIGATIONS — 2.3%
FNMA
0.875%, 08/05/2030		1,055		1,033
FNMA, PO MTN
0.000%, 05/15/2030 (B)		8,380		7,382
Resolution Funding Principal STRIP
4.042%, 04/15/2030 (B)		18,475		16,397
1.335%, 01/15/2030 (B)		625		556
Tennessee Valley Authority
5.250%, 09/15/2039		2,290		3,460
Tennessee Valley Authority, PO
0.000%, 01/15/2038 (B)		3,700		2,607
Total U.S. Government Agency Obligations (Cost $24,701) ($ Thousands)				31,435
MORTGAGE-BACKED SECURITIES — 1.0%
Agency Mortgage-Backed Obligations — 1.0%
FHLMC CMO, Ser 2004-2748, Cl ZT
5.500%, 02/15/2024		356		371
FHLMC CMO, Ser 2010-3756, Cl PZ
4.000%, 11/15/2040		7,454		8,220
FHLMC REMIC CMO, Ser 2004-2733, Cl ME
5.000%, 01/15/2034		83		96
FNMA CMO, Ser 2004-12, Cl ZX
6.000%, 03/25/2034		1,097		1,295
FNMA CMO, Ser 2004-80, Cl XZ
5.000%, 11/25/2034		690		816

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
FNMA REMIC CMO, Ser 2007-68, Cl SC, IO
6.550%, VAR LIBOR USD 1 Month+6.700%, 07/25/2037	$	18	$	3
GNMA ARM
2.875%, VAR US Treas Yield Curve Rate T Note Const Mat 1 Yr+1.500%, 06/20/2032		33		34
GNMA CMO, Ser 2009-8, Cl PS, IO
6.159%, VAR ICE LIBOR USD 1 Month+6.300%, 08/16/2038		39		4
GNMA CMO, Ser 2010-4, Cl NS, IO
6.249%, VAR LIBOR USD 1 Month+6.390%, 01/16/2040		65		14
GNMA CMO, Ser 2011-70, Cl BO, PO
0.000%, 05/20/2041 (B)		2,801		2,509
				13,362
Non-Agency Mortgage-Backed Obligations — 0.0%
Citicorp Residential Mortgage Trust, Ser 2007-1, Cl A5
5.165%, 03/25/2037		165		170
DSLA Mortgage Loan Trust, Ser 2005-AR2, Cl 2A1A
0.570%, VAR ICE LIBOR USD 1 Month+0.420%, 03/19/2045		50		50
Harborview Mortgage Loan Trust, Ser 2004-8, Cl 2A4A
0.950%, VAR ICE LIBOR USD 1 Month+0.800%, 11/19/2034		90		85
Indymac Index Mortgage Loan Trust, Ser 2004-AR12, Cl A1
0.930%, VAR ICE LIBOR USD 1 Month+0.780%, 12/25/2034		67		56
Indymac Index Mortgage Loan Trust, Ser 2004-AR5, Cl 2A1B
0.950%, VAR ICE LIBOR USD 1 Month+0.800%, 08/25/2034		31		28
Indymac Index Mortgage Loan Trust, Ser 2004-AR7, Cl A2
1.010%, VAR ICE LIBOR USD 1 Month+0.860%, 09/25/2034		12		12
RAMP Trust, Ser 2004-SL1, Cl A7
7.000%, 11/25/2031		10		10
Residential Asset Securitization Trust, Ser 2004-IP2, Cl 2A1
3.232%, 12/25/2034 (D)		16		16

  190   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
MORTGAGE-BACKED SECURITIES (continued)
WaMu Mortgage Pass-Through Certificates, Ser 2005-AR2, Cl 2A21
0.810%, VAR ICE LIBOR USD 1 Month+0.660%, 01/25/2045	$	56	$	54
				481
Total Mortgage-Backed Securities (Cost $9,779) ($ Thousands)				13,843
SOVEREIGN DEBT – 0.9%
Chile Government International Bond
3.500%, 01/25/2050		2,075		2,363
Colombia Government International Bond
5.625%, 02/26/2044		595		757
3.000%, 01/30/2030		415		432
Israel Government AID Bond
5.500%, 09/18/2033		1,400		2,061
Israel Government International Bond
3.875%, 07/03/2050		385		460
Mexico Government International Bond
5.750%, 10/12/2110		334		418
5.000%, 04/27/2051		1,005		1,211
4.750%, 04/27/2032		345		408
4.500%, 01/31/2050		1,625		1,840

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
SOVEREIGN DEBT (continued)
3.250%, 04/16/2030	$	415	$	441
Minera Mexico
4.500%, 01/26/2050 (A)		315		358
Nacional del Cobre de Chile
4.375%, 02/05/2049 (A)		190		231
Panama Government International Bond
3.870%, 07/23/2060		335		390
Philippine Government International Bond
2.950%, 05/05/2045		400		426
Uruguay Government International Bond
5.100%, 06/18/2050		370		508
Total Sovereign Debt (Cost $10,403) ($ Thousands)				12,304
	Shares
CASH EQUIVALENT — 1.4%
SEI Daily Income Trust, Government Fund, Cl F
0.010%**†		19,873,253		19,873
Total Cash Equivalent (Cost $19,873) ($ Thousands)				19,873
Total Investments in Securities — 99.7% (Cost $1,155,163) ($ Thousands)			$	1,371,024

A list of the open futures contracts held by the Fund at November 30, 2020, is as follows:

Type of Contract	Number of Contracts Long/(Short)	Expiration Date		Notional Amount (Thousands)		Value (Thousands)		Unrealized Appreciation (Depreciation) (Thousands)
U.S. 10-Year Treasury Note	162		Mar-2021	$	22,374	$	22,384	$	10
U.S. 5-Year Treasury Note	(48)		Apr-2021		(6,044)		(6,050)		(6)
U.S. Long Treasury Bond	(163)		Mar-2021		(28,338)		(28,510)		(172)
U.S. Ultra Long Treasury Bond	418		Mar-2021		90,520		90,301		(219)
Ultra 10-Year U.S. Treasury Note	(208)		Mar-2021		(32,646)		(32,682)		(36)
				$	45,866	$	45,443	$	(423)

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   191

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Fund (Concluded)

Percentages are based on Net Assets of $1,375,324 ($ Thousands).

** The rate reported is the 7-day effective yield as of November 30, 2020.

^†  Investment in Affiliated Security (see Note 6).

(A) Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration normally to qualified institutions.

On November 30, 2020, the value of these securities amounted to $97,676 ($ Thousands), representing 7.1% of the Net Assets of the Fund.

(B) Zero coupon security. The rate shown on the Schedule of Investments is the security’s effective yield at the time of purchase.

(C) Pre-Refunded Securities — The maturity date shown is the pre-refunded date.

(D) Variable or floating rate security, the interest rate of which adjusts periodically based on changes in current interest rates and prepayments on the underlying pool of assets.

AMT — Alternative Minimum Tax

ARM — Adjustable Rate Mortgage

Cl — Class

CMO — Collateralized Mortgage Obligation

DAC — Designated Activity Company

FHLMC — Federal Home Loan Mortgage Corporation

FNMA — Federal National Mortgage Association

GNMA — Government National Mortgage Association

GO — General Obligation

ICE— Intercontinental Exchange

IO — Interest Only — face amount represents notional amount.

LIBOR— London Interbank Offered Rate

LLC — Limited Liability Company

L.P. — Limited Partnership

MTN — Medium Term Note

PLC — Public Limited Company

PO — Principal Only

RB — Revenue Bond

REMIC — Real Estate Mortgage Investment Conduit

Ser — Series

STRIPS — Separately Traded Registered Interest and Principal Securities

VAR — Variable Rate

The following is a list of the level of inputs used as of November 30, 2020, in valuing the Fund’s investments and other financial instruments carried at value ($ Thousands):

Investments in Securities	Level 1     ($)		Level 2     ($)		Level 3     ($)		Total ($)
Corporate Obligations		–		919,071		–		919,071
U.S. Treasury Obligations		–		304,627		–		304,627
Municipal Bonds		–		69,871		–		69,871
U.S. Government Agency Obligations		–		31,435		–		31,435
Mortgage-Backed Securities		–		13,843		–		13,843
Sovereign Debt		–		12,304		–		12,304
Cash Equivalent		19,873		–		–		19,873
Total Investments in Securities		19,873		1,351,151		–		1,371,024
Other Financial Instruments	Level 1     ($)		Level 2     ($)		Level 3     ($)		Total ($)
Futures Contracts*
Unrealized Appreciation		10		–		–		10
Unrealized Depreciation		(433)		–		–		(433)
Total Other Financial Instruments		(423)		–		–		(423)

*Futures contracts are valued at the unrealized appreciation (depreciation) on the instrument.

For the period ended November 30, 2020, there were no transfers in or out of Level 3.

For more information on valuation inputs, see Note 2 – Significant Accounting Policies in Notes to Financial Statements.

The following is a summary of the Fund’s transactions with affiliates for the period ended November 30, 2020 ($ Thousands):

Security Description	Value   5/31/2020	Purchases at Cost	Proceeds from Sales	Realized Gain/ (Loss)	Change in Unrealized Appreciation/   (Depreciation)	Value 11/30/2020	Shares	Income	Capital Gains
SEI Daily Income Trust, Government Fund, Cl F	$  9,303	$  171,127	$  (160,557)	$ —	$ —	$  19,873	19,873,253	$  1	$  —

Amounts designated as “—” are $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

  192   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Credit Fund

^†Percentages based on total investments.

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS — 88.3%
Communication Services — 7.1%
Alphabet
2.250%, 08/15/2060	$	8,260	$	8,160
1.900%, 08/15/2040		1,625		1,606
America Movil
6.125%, 03/30/2040		4,845		7,213
4.375%, 04/22/2049		3,135		4,087
AT&T Inc
6.350%, 03/15/2040		50		70
4.800%, 06/15/2044		546		686
4.650%, 06/01/2044		1,100		1,322
4.350%, 06/15/2045		2,919		3,441
4.300%, 12/15/2042		500		586
3.500%, 06/01/2041		935		1,015
3.500%, 09/15/2053 (A)		11,497		11,729
3.100%, 02/01/2043		1,410		1,449
Charter Communications Operating LLC
6.834%, 10/23/2055		580		874
6.484%, 10/23/2045		535		765
Comcast
6.950%, 08/15/2037		1,430		2,307
6.550%, 07/01/2039		295		469
6.500%, 11/15/2035		2,096		3,256
6.400%, 05/15/2038		2,237		3,483
6.400%, 03/01/2040		735		1,161
5.650%, 06/15/2035		4,520		6,489
4.950%, 10/15/2058		13,342		20,310
4.700%, 10/15/2048		7,785		11,046
4.650%, 07/15/2042		4,347		5,888
4.600%, 10/15/2038		5,140		6,802
4.600%, 08/15/2045		6,340		8,563
4.500%, 01/15/2043		14,295		19,081
4.250%, 01/15/2033		5,040		6,305
4.200%, 08/15/2034		14,330		18,008

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
4.049%, 11/01/2052	$	16,315	$	21,175
4.000%, 03/01/2048		1,330		1,694
3.999%, 11/01/2049		1,109		1,441
3.969%, 11/01/2047		5,605		7,078
3.900%, 03/01/2038		6,405		7,885
3.400%, 04/01/2030		965		1,116
3.400%, 07/15/2046		9,314		10,805
3.250%, 11/01/2039		670		767
2.650%, 08/15/2062		5,480		5,527
Cox Communications
4.800%, 02/01/2035 (A)		1,400		1,763
4.700%, 12/15/2042 (A)		880		1,137
Level 3 Financing
3.875%, 11/15/2029 (A)		535		587
NBCUniversal Media LLC
6.400%, 04/30/2040		1,785		2,819
5.950%, 04/01/2041		3,575		5,492
4.450%, 01/15/2043		3,155		4,187
SES GLOBAL Americas Holdings GP
5.300%, 03/25/2044 (A)		1,550		1,646
Tencent Holdings MTN
3.595%, 01/19/2028 (A)		1,455		1,602
3.240%, 06/03/2050 (A)		1,180		1,231
Time Warner Cable LLC
7.300%, 07/01/2038		971		1,428
5.875%, 11/15/2040		480		622
5.500%, 09/01/2041		725		914
4.500%, 09/15/2042		500		577
Time Warner Entertainment
8.375%, 07/15/2033		1,709		2,665
T-Mobile USA
3.300%, 02/15/2051 (A)		2,635		2,761
TWDC Enterprises 18
4.125%, 12/01/2041		1,970		2,437
TWDC Enterprises 18 MTN
4.125%, 06/01/2044		2,104		2,665
Verizon Communications Inc
5.250%, 03/16/2037		2,350		3,261
5.012%, 04/15/2049		77		109
4.862%, 08/21/2046		1,130		1,556
4.522%, 09/15/2048		3,155		4,246
3.850%, 11/01/2042		540		653
2.987%, 10/30/2056 (A)		2,949		3,124
2.650%, 11/20/2040		2,865		2,956
ViacomCBS
5.900%, 10/15/2040		40		53
4.850%, 12/15/2034		300		349
4.600%, 01/15/2045		650		765
Vodafone Group
4.875%, 06/19/2049		1,960		2,567
Walt Disney
6.650%, 11/15/2037		990		1,542

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   193

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Credit Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
6.400%, 12/15/2035	$	1,743	$	2,686
4.750%, 09/15/2044		175		236
4.700%, 03/23/2050		1,123		1,565
4.625%, 03/23/2040		295		390
3.600%, 01/13/2051		12,879		15,302
3.500%, 05/13/2040		2,195		2,557
2.750%, 09/01/2049		30,991		31,738
				323,847
Consumer Discretionary — 3.0%
Alibaba Group Holding
4.400%, 12/06/2057		1,750		2,367
4.200%, 12/06/2047		2,542		3,251
4.000%, 12/06/2037		1,583		1,900
Alimentation Couche-Tard
4.500%, 07/26/2047 (A)		900		1,115
3.800%, 01/25/2050 (A)		2,105		2,468
Amazon.com
4.250%, 08/22/2057		1,895		2,695
4.050%, 08/22/2047		9,384		12,581
3.875%, 08/22/2037		5,014		6,348
2.700%, 06/03/2060		4,300		4,731
2.500%, 06/03/2050		6,535		6,910
BMW US Capital LLC
4.150%, 04/09/2030 (A)		1,300		1,573
General Motors
6.250%, 10/02/2043		670		904
5.950%, 04/01/2049		480		648
5.150%, 04/01/2038		735		876
5.000%, 04/01/2035		340		408
Grupo Televisa
6.625%, 01/15/2040		20		27
Home Depot
5.950%, 04/01/2041		1,980		3,089
4.500%, 12/06/2048		7,195		10,057
4.400%, 03/15/2045		5,825		7,820
4.250%, 04/01/2046		10,612		14,107
4.200%, 04/01/2043		3,545		4,635
3.900%, 06/15/2047		14,973		19,085
3.350%, 04/15/2050		2,635		3,125
3.300%, 04/15/2040		2,340		2,770
Lowe’s
4.050%, 05/03/2047		1,065		1,310
3.700%, 04/15/2046		2,041		2,398
1.700%, 10/15/2030		4,315		4,337
McDonald’s MTN
3.625%, 09/01/2049		600		704
NIKE
3.625%, 05/01/2043		1,625		1,989
3.375%, 03/27/2050		3,165		3,821
3.250%, 03/27/2040		1,350		1,582

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Starbucks
3.350%, 03/12/2050	$	900	$	986
TJX
4.500%, 04/15/2050		1,820		2,604
1.600%, 05/15/2031		3,325		3,348
				136,569
Consumer Staples — 10.2%
Advocate Health & Hospitals
4.272%, 08/15/2048		2,717		3,484
Aetna
4.125%, 11/15/2042		1,480		1,756
Alcon Finance
3.800%, 09/23/2049 (A)		550		653
Allina Health System
4.805%, 11/15/2045		1,666		2,164
3.887%, 04/15/2049		2,554		2,982
Altria Group
10.200%, 02/06/2039		2,501		4,280
9.950%, 11/10/2038		1,665		2,789
5.375%, 01/31/2044		2,300		2,991
4.500%, 05/02/2043		100		115
4.450%, 05/06/2050		1,035		1,220
4.250%, 08/09/2042		575		654
3.875%, 09/16/2046		1,490		1,605
Anheuser-Busch InBev Worldwide
8.200%, 01/15/2039		3,700		6,376
8.000%, 11/15/2039		3,076		5,229
4.900%, 02/01/2046		4,978		6,505
4.600%, 04/15/2048		220		279
4.600%, 06/01/2060		795		1,024
4.375%, 04/15/2038		580		718
3.750%, 07/15/2042		320		366
Archer-Daniels-Midland
4.500%, 03/15/2049		2,106		3,041
Ascension Health
4.847%, 11/15/2053		520		783
3.945%, 11/15/2046		2,276		2,904
3.106%, 11/15/2039		3,100		3,402
Banner Health
3.181%, 01/01/2050		31		33
2.913%, 01/01/2051		520		528
Baptist Health South Florida
4.342%, 11/15/2041		610		723
Barnabas Health
4.000%, 07/01/2028		2,240		2,458
BAT Capital
4.906%, 04/02/2030		3,290		3,960
4.540%, 08/15/2047		1,883		2,127
4.390%, 08/15/2037		9,940		11,190
3.984%, 09/25/2050		600		630

  194   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
BayCare Health System
3.831%, 11/15/2050	$	1,870	$	2,316
Bayer US Finance II LLC
4.875%, 06/25/2048 (A)		235		302
4.700%, 07/15/2064 (A)		3,530		4,089
4.625%, 06/25/2038 (A)		645		784
4.400%, 07/15/2044 (A)		2,685		3,113
3.950%, 04/15/2045 (A)		2,680		2,898
Baylor Scott & White Holdings
4.185%, 11/15/2045		2,636		3,287
3.967%, 11/15/2046		120		144
2.650%, 11/15/2026		1,235		1,332
Bon Secours Mercy Health
3.205%, 06/01/2050		1,100		1,173
Boston University
4.061%, 10/01/2048		1,800		2,276
Bowdoin College
4.693%, 07/01/2112		370		433
Brown University
2.924%, 09/01/2050		2,198		2,455
California Institute of Technology
4.321%, 08/01/2045		650		859
Children’s Health Care
3.448%, 08/15/2049		815		886
Children’s Hospital Medical Center
2.820%, 11/15/2050		1,180		1,186
Children’s Hospital of Philadelphia
2.704%, 07/01/2050		3,280		3,349
City of Hope
5.623%, 11/15/2043		920		1,300
Claremont Mckenna College
3.378%, 01/01/2050		1,515		1,616
Coca-Cola
2.600%, 06/01/2050		2,640		2,794
2.500%, 06/01/2040		465		502
2.500%, 03/15/2051		3,465		3,603
Coca-Cola Femsa
5.250%, 11/26/2043		3,070		4,334
CommonSpirit Health
4.187%, 10/01/2049		2,925		3,241
3.910%, 10/01/2050		570		605
3.817%, 10/01/2049		3,230		3,561
Conagra Brands
5.400%, 11/01/2048		460		664
Dartmouth-Hitchcock Health
4.178%, 08/01/2048		4,410		5,163
Diageo Capital
5.875%, 09/30/2036		485		704
2.125%, 04/29/2032		675		714
Duke University Health System
3.920%, 06/01/2047		3,995		4,918

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
Emory University
2.969%, 09/01/2050	$	1,660	$	1,800
Estee Lauder
3.125%, 12/01/2049		3,230		3,772
Fomento Economico Mexicano
3.500%, 01/16/2050		3,150		3,466
Ford Foundation
3.859%, 06/01/2047		2,500		3,249
Georgetown University
5.215%, 10/01/2118		2,318		3,046
4.315%, 04/01/2049		2,290		2,837
2.943%, 04/01/2050		1,132		1,119
Hackensack Meridian Health
2.875%, 09/01/2050		1,160		1,180
Hartford HealthCare
5.746%, 04/01/2044		2,130		2,760
Health Care Service, A Mutual Legal Reserve
2.200%, 06/01/2030 (A)		1,845		1,924
Hershey
3.125%, 11/15/2049		1,372		1,561
Indiana University Health Obligated Group
3.970%, 11/01/2048		2,410		3,027
Johns Hopkins Health System
3.837%, 05/15/2046		1,020		1,274
Johns Hopkins University
4.083%, 07/01/2053		2,000		2,675
2.813%, 01/01/2060		2,290		2,358
Kaiser Foundation Hospitals
4.150%, 05/01/2047		5,325		6,961
3.266%, 11/01/2049		1,910		2,161
Kimberly-Clark
5.300%, 03/01/2041		555		817
3.900%, 05/04/2047		3,275		4,251
2.875%, 02/07/2050		1,995		2,277
Kraft Heinz Foods
7.125%, 08/01/2039 (A)		1,160		1,629
6.750%, 03/15/2032		575		769
5.200%, 07/15/2045		400		472
4.875%, 10/01/2049 (A)		470		530
4.375%, 06/01/2046		1,870		1,997
Kroger
5.400%, 01/15/2049		2,371		3,447
3.950%, 01/15/2050		280		343
Mars
4.200%, 04/01/2059 (A)		1,485		1,957
4.125%, 04/01/2054 (A)		1,385		1,832
3.950%, 04/01/2049 (A)		5,430		6,893
3.875%, 04/01/2039 (A)		1,650		2,016
2.375%, 07/16/2040 (A)		2,000		2,057
Massachusetts Institute of Technology
5.600%, 07/01/2111		3,550		6,136
3.959%, 07/01/2038		1,927		2,359

  SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020   195

SCHEDULE OF INVESTMENTS (Unaudited)

November 30, 2020

Long Duration Credit Fund (Continued)

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
2.294%, 07/01/2051	$	21	$	21
MedStar Health
3.626%, 08/15/2049		2,547		2,879
Memorial Health Services
3.447%, 11/01/2049		3,640		3,852
Memorial Sloan-Kettering Cancer Center
4.200%, 07/01/2055		30		40
4.125%, 07/01/2052		3,085		4,041
2.955%, 01/01/2050		9		10
Methodist Hospital
2.705%, 12/01/2050		1,745		1,760
MidMichigan Health
3.409%, 06/01/2050		3,520		3,912
Mount Sinai Hospitals Group
3.737%, 07/01/2049		2,700		2,963
MultiCare Health System
2.803%, 08/15/2050		755		756
Nestle Holdings
4.000%, 09/24/2048 (A)		1,560		2,092
3.900%, 09/24/2038 (A)		3,125		4,014
New York and Presbyterian Hospital
4.763%, 08/01/2116		1,705		2,064
4.063%, 08/01/2056		2,300		2,906
Northwell Healthcare
4.260%, 11/01/2047		815		945
Northwestern University
3.688%, 12/01/2038		2,070		2,357
Novartis Capital
4.000%, 11/20/2045		4,325		5,651
2.750%, 08/14/2050		6,634		7,282
NY Society for Relief of Ruptured & Crippled Maintaining Hospital Special Surgery
2.667%, 10/01/2050		980		934
NYU Langone Hospitals
5.750%, 07/01/2043		2,115		2,914
4.428%, 07/01/2042		2,150		2,416
4.368%, 07/01/2047		2,025		2,400
3.380%, 07/01/2055		1,785		1,840
OhioHealth
3.042%, 11/15/2050		2,462		2,720
Orlando Health Obligated Group
3.327%, 10/01/2050		880		931
Partners Healthcare System
3.765%, 07/01/2048		1,000		1,177
3.342%, 07/01/2060		2,015		2,239
3.192%, 07/01/2049		2,260		2,411
PeaceHealth Obligated Group
3.218%, 11/15/2050		5,820		6,105
PepsiCo
4.250%, 10/22/2044		1,000		1,315
4.000%, 05/02/2047		4,823		6,181
3.625%, 03/19/2050		8,203		10,325

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.500%, 03/19/2040	$	2,015	$	2,456
3.450%, 10/06/2046		10,379		12,623
3.375%, 07/29/2049		1,685		2,048
3.000%, 08/25/2021		16		16
Philip Morris International
4.875%, 11/15/2043		2,830		3,784
4.500%, 03/20/2042		5,390		6,896
4.250%, 11/10/2044		701		873
4.125%, 03/04/2043		2,286		2,735
3.875%, 08/21/2042		1,235		1,461
Pomona College
2.888%, 01/01/2051		1,445		1,517
President & Fellows of Harvard College
3.619%, 10/01/2037		400		474
2.517%, 10/15/2050		1,760		1,850
Princeton University
5.700%, 03/01/2039		1,449		2,191
Procter & Gamble
3.600%, 03/25/2050		615		838
3.550%, 03/25/2040		1,395		1,759
Providence St. Joseph Health Obligated Group
3.744%, 10/01/2047		1,640		1,927
2.532%, 10/01/2029		2,905		3,095
Reynolds American
8.125%, 05/01/2040		2,390		3,501
5.850%, 08/15/2045		1,995		2,553
Rockefeller Foundation
2.492%, 10/01/2050		3,855		3,944
RWJ Barnabas Health
3.949%, 07/01/2046		50		57
3.477%, 07/01/2049		535		594
Sharp HealthCare
2.680%, 08/01/2050		1,500		1,527
Stanford Health Care
3.795%, 11/15/2048		7,242		9,094
Takeda Pharmaceutical
3.375%, 07/09/2060		1,550		1,726
3.175%, 07/09/2050		2,765		2,962
3.025%, 07/09/2040		1,350		1,434
University of Chicago
4.411%, 10/01/2044		715		772
4.003%, 10/01/2053		2,475		3,250
2.761%, 04/01/2045		4,653		4,853
University of Southern California
3.841%, 10/01/2047		1,655		2,046
3.028%, 10/01/2039		2,300		2,494
2.805%, 10/01/2050		925		1,003
Walmart
4.050%, 06/29/2048		25,749		35,403
3.950%, 06/28/2038		2,510		3,258
3.625%, 12/15/2047		5,280		6,782

  196   SEI Institutional Investments Trust / Semi-Annual Report / November 30, 2020

Description	Face Amount (Thousands)		Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
2.950%, 09/24/2049	$	5,390	$	6,270
Willis-Knighton Medical Center
4.813%, 09/01/2048		2,265		2,972
Yale-New Haven Health Services
2.496%, 07/01/2050		1,000		983
				461,996
Energy — 5.1%
Baker Hughes LLC
4.080%, 12/15/2047		1,310		1,510
BG Energy Capital
5.125%, 10/15/2041 (A)		5,840		7,815
BP Capital Markets America
3.937%, 09/21/2028		2,965		3,475
3.000%, 02/24/2050		3,500		3,641
2.772%, 11/10/2050		3,605		3,595
Burlington Resources LLC
5.950%, 10/15/2036		395		553
Chevron
3.078%, 05/11/2050		1,590		1,773
Colonial Enterprises
3.250%, 05/15/2030 (A)		2,905		3,253
ConocoPhillips
6.950%, 04/15/2029		1,938		2,702
6.500%, 02/01/2039		12,863		19,682
5.900%, 05/15/2038		2,400		3,422
4.300%, 11/15/2044		4,720		5,933
Devon Energy
7.875%, 09/30/2031		1,315		1,760
Energy Transfer Operating
8.250%, 11/15/2029		95		125
6.500%, 02/01/2042		150		173
6.250%, 04/15/2049		546		637
6.050%, 06/01/2041		2,225		2,473
5.300%, 04/15/2047		880		937
5.150%, 03/15/2045		75		78
5.000%, 05/15/2050		1,060		1,115
4.900%, 03/15/2035		82		85
Eni SpA
5.700%, 10/01/2040 (A)		2,285		2,786
EnLink Midstream Partners
5.050%, 04/01/2045		2,045		1,501
Enterprise Products Operating LLC
5.950%, 02/01/2041		1,092		1,499
3.950%, 01/31/2060		535		580
EOG Resources
4.375%, 04/15/2030		1,695		2,067
3.900%, 04/01/2035		4,997		5,829
Equinor
5.100%, 08/17/2040		1,415		1,961
4.800%, 11/08/2043		2,284		3,040
3.700%, 04/06/2050		1,740		2,093

Description	Face Amount (Thousands)			Market Value     ($ Thousands)
CORPORATE OBLIGATIONS (continued)
3.625%, 04/06/2040	$	3,345		$	3,986
3.250%, 11/18/2049		1,390			1,540
2.375%, 05/22/2030		1,760			1,879
Exxon Mobil
4.327%, 03/19/2050		3,988			5,151
4.227%, 03/19/2040		3,345			4,135
3.567%, 03/06/2045		5,455			6,223
3.452%, 04/15/2051		11,980			13,645
2.995%, 08/16/2039		2,346			2,520
Hess
6.000%, 01/15/2040		3,630			4,414
Kinder Morgan
5.300%, 12/01/2034		500			603
Marathon Petroleum
5.000%, 09/15/2054		1,030			1,126
Motiva Enterprises
6.850%, 01/15/2040 (A)		4,340			5,155
MPLX
5.200%, 03/01/2047		2,910			3,461
5.200%, 12/01/2047		920			1,074
4.500%, 04/15/2038		475			527
Noble Energy
6.000%, 03/01/2041		360			528
5.250%, 11/15/2043		270			374
4.200%, 10/15/2049		1,195			1,503
Northern Natural Gas
4.300%, 01/15/2049 (A)		1,530			1,852
Occidental Petroleum
4.300%, 08/15/2039		462			381
Petroleos Mexicanos
7.690%, 01/23/2050		2,785			2,569
6.950%, 01/28/2060		260			223
Saudi Arabian Oil
3.500%, 11/24/2070 (A)		1,415			1,430
Saudi Arabian Oil MTN
4.375%, 04/16/2049 (A)		340			414
Shell International Finance BV
6.375%, 12/15/2038		6,161			9,562
4.550%, 08/12/2043		3,200			4,228
4.375%, 05/11/2045		4,845			6,248
4.000%, 05/10/2046		7,840			9,708
3.750%, 09/12/2046		10,691			12,765
3.625%, 08/21/2042		2,250			2,615
3.250%, 04/06/2050		1,550			1,748
Southern Natural Gas
7.350%, 02/15/2031		730			983
Suncor Energy
5.950%, 12/01/2034		3,570	</