BlackRock Science and Technology Trust II (BSTZ) NPORT-P BlackRock Science & Technology Trust II (Mar 2023 report)

Consolidated Schedule of Investments (unaudited)  March 31, 2023 BlackRock Science and Technology Trust II (BSTZ) (Percentages shown are based on Net Assets)

Security	Shares		Value
Common Stocks
Automobiles — 2.6%
Tesla, Inc.(a)(b)		199,297	$	41,346,156
Banks — 1.1%
Klarna Holdings AB, (Acquired 08/07/19, Cost: $23,354,997)(c)(d)		86,839		17,151,685
Broadline Retail — 2.9%
Coupang, Inc.(b)		646,966		10,351,456
MercadoLibre, Inc.(b)		19,836		26,145,038
Prosus NV		129,320		10,126,274
				46,622,768
Communications Equipment — 1.0%
Accton Technology Corp.		986,000		10,362,985
Calix, Inc.(b)		91,054		4,879,584
				15,242,569
Diversified Consumer Services — 0.5%
Think & Learn Private Ltd., (Acquired 09/30/20, Cost: $7,113,729)(c)(d)		4,651		8,251,944
Electrical Equipment — 0.9%
Array Technologies, Inc.(b)		375,227		8,209,967
Sungrow Power Supply Co. Ltd., Class A		450,500		6,887,999
				15,097,966
Electronic Equipment, Instruments & Components — 5.3%
Delta Electronics, Inc.		1,041,000		10,328,423
Jabil, Inc.		311,896		27,496,751
Lotes Co. Ltd.		202,000		6,105,335
Samsung SDI Co. Ltd.		47,747		27,122,142
Yageo Corp.		380,000		6,624,203
Zhejiang Supcon Technology Co. Ltd., Class A		432,681		6,560,612
				84,237,466
Entertainment — 2.9%
CTS Eventim AG & Co. KGaA(b)		135,310		8,459,020
Nexon Co. Ltd.		361,200		8,625,012
Spotify Technology SA(b)		85,141		11,376,540
Take-Two Interactive Software, Inc.(b)		149,309		17,812,564
				46,273,136
Financial Services — 3.8%
Adyen NV(b)(e)		14,561		23,201,903
GMO Payment Gateway, Inc.		182,200		15,774,401
Shift4 Payments, Inc., Class A(b)		174,551		13,230,966
Wise PLC, Class A(b)		1,168,932		7,847,269
				60,054,539
Health Care Technology — 0.4%
M3, Inc.		222,500		5,600,113
Hotels, Restaurants & Leisure(b) — 1.7%
Expedia Group, Inc.		52,972		5,139,873
Trip.com Group Ltd., ADR(f)		597,845		22,520,821
				27,660,694
Household Durables — 0.4%
TCL Technology Group Corp., Class A		9,042,000		5,825,570
Interactive Media & Services(b) — 1.1%
Kanzhun Ltd., ADR		407,731		7,759,121
Pinterest, Inc., Class A		363,770		9,920,008
				17,679,129

Security	Shares		Value
IT Services — 4.9%
Automattic, Inc., Series E, (Acquired 02/03/21, Cost: $34,000,000)(c)(d)		400,000	$	16,668,000
Cloudflare, Inc., Class A(b)		150,772		9,296,601
Grid Dynamics Holdings, Inc.(b)		525,023		6,016,764
Locaweb Servicos de Internet SA(b)(e)		576,095		544,445
MongoDB, Inc.(b)(f)(g)		66,883		15,591,765
Okta, Inc.(b)		115,362		9,948,819
TRAX Ltd., (Acquired 09/12/19, Cost: $10,999,988)(c)(d)		293,333		7,667,725
TRAX Ltd., Series D, (Acquired 02/18/21, Cost: $9,999,998)(c)(d)		191,806		5,013,809
Twilio, Inc., Class A(b)		105,871		7,054,185
				77,802,113
Machinery — 0.7%
Shenzhen Inovance Technology Co. Ltd., Class A		1,063,600		10,894,273
Media — 1.6%
Informa PLC		2,903,967		24,891,219
Professional Services — 1.6%
Legalzoom.com, Inc.(b)(g)		734,531		6,889,901
Wolters Kluwer NV		147,785		18,655,854
				25,545,755
Real Estate Management & Development — 0.5%
KE Holdings, Inc., ADR(b)		458,692		8,641,757
Semiconductors & Semiconductor Equipment — 23.3%
Alchip Technologies Ltd.		191,000		7,821,986
Alphawave IP Group PLC(b)		4,643,204		6,747,216
ASM International NV		79,668		32,337,300
ASPEED Technology, Inc.		63,000		5,498,423
Axcelis Technologies, Inc.(b)		41,437		5,521,480
BE Semiconductor Industries NV		175,201		15,313,540
CNEX Labs, Inc., (Acquired 12/14/21, Cost: $5,699,998)(c)(d)		1,161,804		3,194,961
Credo Technology Group Holding Ltd.(b)(g)		2,188,290		20,613,692
eMemory Technology, Inc.		94,000		5,786,450
First Solar, Inc.(b)		49,738		10,818,015
Lasertec Corp.		184,400		32,764,064
Lattice Semiconductor Corp.(a)(b)		404,266		38,607,403
Marvell Technology, Inc.(f)		397,115		17,195,080
Monolithic Power Systems, Inc.(f)		63,802		31,935,453
NVIDIA Corp.		158,243		43,955,158
Qorvo, Inc.(b)		87,534		8,890,828
Rambus, Inc.(b)(g)		271,353		13,909,555
SK Hynix, Inc.		124,303		8,506,665
SMA Solar Technology AG(b)		18,137		1,953,321
Soitec SA(b)		170,237		27,318,470
StarPower Semiconductor Ltd., Class A		185,814		7,435,136
Wolfspeed, Inc.(b)(f)		369,162		23,977,072
				370,101,268
Software — 16.4%
Altium Ltd.		762,952		19,601,603
Appier Group, Inc.(b)		466,200		5,979,133
Aspen Technology, Inc.(b)(g)		60,611		13,872,040
Atlassian Corp., Class A(b)(g)		58,267		9,973,562
Databricks, Inc., (Acquired 07/24/20, Cost: $5,501,686)(c)(d)		343,659		18,736,289
DataRobot, Inc., (Acquired 03/01/21, Cost: $1,384,813)(c)(d)		92,093		415,339
Freee KK(b)(g)		458,900		11,823,057
Gitlab, Inc., Class A(b)(g)		267,383		9,168,563

1

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2023 BlackRock Science and Technology Trust II (BSTZ) (Percentages shown are based on Net Assets)

Security	Shares		Value
Software (continued)
Glodon Co. Ltd., Class A		1,277,083	$	13,806,238
Kaspi.KZ JSC, GDR, Registered Shares		108,148		8,165,174
Kinaxis, Inc.(b)		71,360		9,797,678
Palo Alto Networks, Inc.(b)(g)		104,772		20,927,159
Rapid7, Inc.(b)		180,049		8,266,050
RingCentral, Inc., Class A(b)		152,398		4,674,047
SiteMinder Ltd.(b)		4,405,278		10,137,489
Snorkel AI, Inc., (Acquired 10/13/20, Cost: $2,017,593)(c)(d)		500,250		3,561,780
Snyk Ltd., (Acquired 11/02/20, Cost: $9,287,400)(c)(d)		1,267,643		14,565,218
Synopsys, Inc.(b)(f)		120,113		46,393,647
Tenable Holdings, Inc.(b)		103,791		4,931,110
Unity Software, Inc.(b)(g)		227,066		7,366,021
Xero Ltd.(b)		205,620		12,471,142
Zscaler, Inc.(b)(f)(g)		52,415		6,123,645
				260,755,984
Specialty Retail — 0.4%
Farfetch Ltd., Class A(b)(g)		1,282,251		6,295,852
Technology Hardware, Storage & Peripherals — 1.6%
Pure Storage, Inc., Class A(b)(g)		785,306		20,033,156
Wiwynn Corp.		147,000		5,453,907
				25,487,063
Total Common Stocks — 75.6% (Cost: $976,857,162)				1,201,459,019
Preferred Securities
Preferred Stocks — 25.7%(c)(d)
Communications Equipment — 0.7%
Astranis Space Technologies Corp., Series C, (Acquired 03/19/21, Cost: $17,000,010)		775,515		11,291,498
Diversified Consumer Services — 1.6%
FlixMobility GmbH, Series F, (Acquired 07/26/19, Cost: $16,947,253)		850		15,850,807
Think & Learn Private Ltd., Series F, (Acquired 09/30/20, Cost: $14,251,080)		4,920		8,729,212
				24,580,019
Financial Services — 0.1%
Snorkel AI, Inc., Series B, (Acquired 10/13/20, Cost: $999,996)		247,943		1,765,354
Food Products — 3.5%
Farmer’s Business Network, Inc., Series F, (Acquired 07/31/20, Cost: $11,961,002)		361,834		16,865,083
GrubMarket, Inc., Series D, (Acquired 07/23/20, Cost: $8,000,001)		1,762,969		38,926,355
				55,791,438
Interactive Media & Services — 0.4%
ResearchGate GmbH, Series D, (Acquired 09/24/20, Cost: $6,999,988)		424,688		6,187,704
IT Services — 5.4%
ByteDance Ltd., Series E-1, (Acquired 11/11/20, Cost: $33,777,337)		308,260		48,755,904
Deep Instinct Ltd., Series D-2, (Acquired 03/19/21, Cost: $12,000,008)		1,974,374		13,919,337

Security	Shares		Value
IT Services (continued)
Trumid Holdings LLC(h)
Class J-A, (Acquired 07/24/20, Cost: $9,999,857)		20,154	$	11,153,627
Class J-B, (Acquired 07/24/20, Cost: $5,999,914)		20,154		11,153,627
				84,982,495
Semiconductors & Semiconductor Equipment — 6.3%
Mythic AI, Inc., Series C, (Acquired 01/26/21, Cost: $7,000,000)		1,018,908		10
PsiQuantum Corp.
Series C, (Acquired 09/09/19, Cost: $9,101,310)		1,962,335		37,264,742
Series D, (Acquired 05/21/21, Cost: $19,999,969)		762,595		18,287,028
SambaNova Systems, Inc.
Series C, (Acquired 02/20/20, Cost: $33,904,161)		636,800		40,430,432
Series D, (Acquired 04/09/21, Cost: $6,999,979)		73,670		4,677,308
				100,659,520
Software — 7.7%
Databricks, Inc.
Series F, (Acquired 10/22/19, Cost: $13,200,019)		922,038		50,269,512
Series G, (Acquired 02/01/21, Cost: $18,500,004)		312,909		17,059,799
DataRobot, Inc., Series F, (Acquired 10/27/20, Cost: $11,499,999)		875,059		4,909,081
Rapyd Financial Network Ltd., Series E, (Acquired 03/31/21, Cost: $13,999,978)		190,705		13,494,286
Snyk Ltd., (Acquired 11/02/20, Cost: $13,212,590)		2,663,936		30,608,625
Unqork, Inc.
Series B, (Acquired 09/19/19, Cost: $6,801,016)		597,680		4,016,409
Series C, (Acquired 09/18/20, Cost: $7,994,787)		292,000		2,444,040
				122,801,752
				408,059,780
Total Preferred Securities — 25.7% (Cost: $300,150,258)				408,059,780
Warrants
IT Services — 0.0%
TRAX Ltd., (Acquired 09/12/19, Cost: $0), (Issued 09/23/19, Exercisable 07/12/23, 1 Share for 1 Warrant, Expires 09/15/23, Strike Price USD 46.88)(b)(c)(d)		46,928		2,346
Total Warrants — 0.0% (Cost: $ — )				2,346
Total Long-Term Investments — 101.3% (Cost: $1,277,007,420)				1,609,521,145

CONSOLIDATED  SCHEDULE   OF  INVESTMENTS 2

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2023 BlackRock Science and Technology Trust II (BSTZ) (Percentages shown are based on Net Assets)

Security	Shares		Value
Short-Term Securities
Money Market Funds — 1.4%
BlackRock Liquidity Funds, T-Fund, Institutional Class, 4.70%(i)(j)		720,151	$	720,151
SL Liquidity Series, LLC, Money Market Series, 5.01%(i)(j)(k)		21,313,385		21,313,385
Total Short-Term Securities — 1.4% (Cost: $22,033,740)				22,033,536
Total Investments Before Options Written — 102.7% (Cost: $1,299,041,160)				1,631,554,681
Options Written — (1.4)%
(Premiums Received: $(17,262,112))				(21,626,143	)
Total Investments, Net of Options Written — 101.3% (Cost: $1,281,779,048)				1,609,928,538
Liabilities in Excess of Other Assets — (1.3)%				(21,150,876	)
Net Assets — 100.0%			$	1,588,777,662

^(a)  All or a portion of the security has been pledged as collateral in connection with outstanding OTC derivatives.

^(b)  Non-income producing security.

^(c)  Security is valued using significant unobservable inputs and is classified as Level 3 in the fair value hierarchy.

^(d)  Restricted security as to resale, excluding 144A securities. The Trust held restricted securities with a current value of $503,288,876, representing 31.7% of its net assets as of period end, and an original cost of $409,510,460.

^(e)  Security exempt from registration pursuant to Rule 144A under the Securities Act of 1933, as amended. These securities may be resold in transactions exempt from registration to qualified institutional investors.

^(f)  All or a portion of the security has been pledged and/or segregated as collateral in connection with outstanding exchange-traded options written.

^(g)  All or a portion of this security is on loan.

^(h)  All or a portion of the security is held by a wholly-owned subsidiary.

⁽ⁱ⁾  Affiliate of the Trust.

^(j)  Annualized 7-day yield as of period end.

^(k)  All or a portion of this security was purchased with the cash collateral from loaned securities.

For Trust compliance purposes, the Trust’s industry classifications refer to one or more of the industry sub-classifications used by one or more widely recognized market indexes or rating group indexes, and/or as defined by the investment adviser. These definitions may not apply for purposes of this report, which may combine such industry sub-classifications for reporting ease.

Affiliates

Investments in issuers considered to be affiliate(s) of the Trust during the period ended March 31, 2023 for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

Affiliated Issuer	Value at 12/31/22		Purchases at Cost			Proceeds from Sales			Net Realized Gain (Loss)		Change in Unrealized Appreciation (Depreciation)			Value at 03/31/23		Shares Held at 03/31/23		Income			Capital Gain Distributions from Underlying Funds
BlackRock Liquidity Funds, T-Fund, Institutional Class	$	20,683,361	$	—		$	(19,963,210	)(a)	$	—	$	—		$	720,151		720,151	$	112,306		$	—
SL Liquidity Series, LLC, Money Market Series		—		21,308,472	(a)		—			5,117		(204	)		21,313,385		21,313,385		23,585	(b)		—
									$	5,117	$	(204	)	$	22,033,536			$	135,891		$	—

^(a)  Represents net amount purchased (sold).

^(b)  All or a portion represents securities lending income earned from the reinvestment of cash collateral from loaned securities, net of fees and collateral investment expenses, and other payments to and from borrowers of securities.

Derivative Financial Instruments Outstanding as of Period End

Exchange-Traded Options Written

Description	Number of Contracts		Expiration Date		Exercise Price			Notional Amount (000)			Value
Call
Farfetch Ltd., Class A		1,528		04/06/23		USD	6.00		USD	750	$	(4,584	)
First Solar, Inc.		24		04/06/23		USD	220.00		USD	522		(7,224	)
MongoDB, Inc.		56		04/06/23		USD	225.00		USD	1,305		(62,160	)
NVIDIA Corp.		121		04/06/23		USD	245.00		USD	3,361		(400,812	)
Pinterest, Inc., Class A		274		04/06/23		USD	27.00		USD	747		(19,728	)
Spotify Technology SA		128		04/06/23		USD	122.00		USD	1,710		(154,880	)
Take-Two Interactive Software, Inc.		199		04/06/23		USD	117.00		USD	2,374		(61,988	)
Tesla, Inc.		110		04/06/23		USD	230.00		USD	2,282		(11,495	)
Unity Software, Inc.		300		04/06/23		USD	35.00		USD	973		(10,800	)
Atlassian Corp., Class A		77		04/14/23		USD	177.50		USD	1,318		(30,800	)
Cloudflare, Inc., Class A		322		04/14/23		USD	64.00		USD	1,985		(59,409	)
Coupang, Inc.		645		04/14/23		USD	15.50		USD	1,032		(52,567	)
Marvell Technology, Inc.		270		04/14/23		USD	41.00		USD	1,169		(80,325	)

3

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2023 BlackRock Science and Technology Trust II (BSTZ)

Exchange-Traded Options Written (continued)

Description	Number of Contracts	Expiration Date	Exercise Price			Notional Amount (000)			Value
Call (continued)
MercadoLibre, Inc.	18	04/14/23		USD	1,210.00		USD	2,373	$	(210,690	)
NVIDIA Corp.	122	04/14/23		USD	245.00		USD	3,389		(415,410	)
Palo Alto Networks, Inc.	61	04/14/23		USD	190.00		USD	1,218		(68,625	)
Tesla, Inc.	130	04/14/23		USD	187.50		USD	2,697		(295,425	)
Twilio, Inc., Class A	179	04/14/23		USD	80.00		USD	1,193		(2,864	)
Wolfspeed, Inc.	669	04/14/23		USD	86.00		USD	4,345		(2,381	)
Array Technologies, Inc.	577	04/21/23		USD	25.00		USD	1,262		(23,080	)
Aspen Technology, Inc.	173	04/21/23		USD	220.00		USD	3,959		(224,900	)
Atlassian Corp., Class A	87	04/21/23		USD	170.00		USD	1,489		(80,475	)
Calix, Inc.	188	04/21/23		USD	60.00		USD	1,007		(4,700	)
Credo Technology Group Holding Ltd.	1,619	04/21/23		USD	19.91		USD	1,525		—
Expedia Group, Inc.	105	04/21/23		USD	98.00		USD	1,019		(31,290	)
First Solar, Inc.	86	04/21/23		USD	210.00		USD	1,871		(112,230	)
Gitlab, Inc., Class A	264	04/21/23		USD	60.00		USD	905		(2,640	)
Grid Dynamics Holdings, Inc.	300	04/21/23		USD	12.59		USD	344		(7,242	)
Jabil, Inc.	460	04/21/23		USD	80.00		USD	4,055		(402,500	)
Kanzhun Ltd., ADR	764	04/21/23		USD	30.00		USD	1,454		(26,740	)
KE Holdings, Inc., ADR	664	04/21/23		USD	22.50		USD	1,251		(6,308	)
Kinaxis, Inc.	252	04/21/23		CAD	170.00		CAD	4,676		(315,117	)
Lattice Semiconductor Corp.	201	04/21/23		USD	90.75		USD	1,920		(142,139	)
MercadoLibre, Inc.	33	04/21/23		USD	1,230.00		USD	4,350		(357,390	)
MongoDB, Inc.	57	04/21/23		USD	230.00		USD	1,329		(78,090	)
Monolithic Power Systems, Inc.	130	04/21/23		USD	510.50		USD	6,507		(245,168	)
NVIDIA Corp.	113	04/21/23		USD	260.00		USD	3,139		(257,075	)
Okta, Inc.	125	04/21/23		USD	90.00		USD	1,078		(25,438	)
Palo Alto Networks, Inc.	190	04/21/23		USD	195.00		USD	3,795		(158,175	)
Pinterest, Inc., Class A	274	04/21/23		USD	27.00		USD	747		(36,990	)
Pure Storage, Inc., Class A	2,180	04/21/23		USD	33.00		USD	5,561		(10,900	)
Qorvo, Inc.	193	04/21/23		USD	110.00		USD	1,960		(11,098	)
Rambus, Inc.	146	04/21/23		USD	46.00		USD	748		(75,920	)
Rambus, Inc.	600	04/21/23		USD	47.00		USD	3,076		(279,000	)
Rapid7, Inc.	390	04/21/23		USD	51.05		USD	1,790		(96,688	)
Shift4 Payments, Inc., Class A	550	04/21/23		USD	65.90		USD	4,169		(620,414	)
Spotify Technology SA	103	04/21/23		USD	135.00		USD	1,376		(42,745	)
Synopsys, Inc.	162	04/21/23		USD	380.00		USD	6,257		(221,130	)
Tenable Holdings, Inc.	210	04/21/23		USD	45.00		USD	998		(71,400	)
Tesla, Inc.	62	04/21/23		USD	210.00		USD	1,286		(71,145	)
Tesla, Inc.	61	04/21/23		USD	230.00		USD	1,266		(28,823	)
Trip.com Group Ltd., ADR	1,434	04/21/23		USD	39.21		USD	5,402		(140,351	)
Twilio, Inc., Class A	94	04/21/23		USD	66.00		USD	626		(35,015	)
Cloudflare, Inc., Class A	281	04/28/23		USD	62.00		USD	1,733		(110,995	)
Coupang, Inc.	691	04/28/23		USD	14.50		USD	1,106		(124,725	)
Farfetch Ltd., Class A	2,073	04/28/23		USD	5.50		USD	1,018		(38,351	)
Gitlab, Inc., Class A	895	04/28/23		USD	40.00		USD	3,069		(78,312	)
KE Holdings, Inc., ADR	664	04/28/23		USD	20.00		USD	1,251		(48,140	)
Lattice Semiconductor Corp.	452	04/28/23		USD	84.50		USD	4,317		(575,483	)
Marvell Technology, Inc.	890	04/28/23		USD	45.00		USD	3,854		(134,390	)
MercadoLibre, Inc.	28	04/28/23		USD	1,320.00		USD	3,691		(167,300	)
MongoDB, Inc.	84	04/28/23		USD	230.00		USD	1,958		(133,770	)
Okta, Inc.	351	04/28/23		USD	89.00		USD	3,027		(103,369	)
Pinterest, Inc., Class A	157	04/28/23		USD	31.00		USD	428		(7,379	)
Spotify Technology SA	109	04/28/23		USD	133.00		USD	1,456		(94,830	)
Take-Two Interactive Software, Inc.	346	04/28/23		USD	117.00		USD	4,128		(186,840	)
Tesla, Inc.	66	04/28/23		USD	205.00		USD	1,369		(103,950	)
Tesla, Inc.	82	04/28/23		USD	217.50		USD	1,701		(82,205	)
Twilio, Inc., Class A	150	04/28/23		USD	69.00		USD	999		(42,750	)
Unity Software, Inc.	181	04/28/23		USD	32.00		USD	587		(52,852	)
Zscaler, Inc.	171	04/28/23		USD	119.00		USD	1,998		(85,927	)
Credo Technology Group Holding Ltd.	1,619	05/02/23		USD	19.91		USD	1,525		—
Atlassian Corp., Class A	69	05/05/23		USD	170.00		USD	1,181		(105,570	)
Coupang, Inc.	606	05/05/23		USD	16.50		USD	970		(38,784	)
Expedia Group, Inc.	106	05/05/23		USD	101.00		USD	1,029		(36,464	)

CONSOLIDATED  SCHEDULE   OF  INVESTMENTS 4

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2023 BlackRock Science and Technology Trust II (BSTZ)

Exchange-Traded Options Written (continued)

Description	Number of Contracts	Expiration Date		Exercise Price			Notional Amount (000)			Value
Call (continued)
Farfetch Ltd., Class A	1,528	05/05/23			USD	5.50		USD	750	$	(35,908	)
First Solar, Inc.	88	05/05/23			USD	232.50		USD	1,914		(66,000	)
KE Holdings, Inc., ADR	507	05/05/23			USD	21.00		USD	955		(30,927	)
MongoDB, Inc.	70	05/05/23			USD	230.00		USD	1,632		(123,900	)
NVIDIA Corp.	118	05/05/23			USD	285.00		USD	3,278		(141,600	)
Palo Alto Networks, Inc.	171	05/05/23			USD	195.00		USD	3,416		(176,130	)
Pinterest, Inc., Class A	476	05/05/23			USD	31.00		USD	1,298		(31,892	)
RingCentral, Inc., Class A	600	05/05/23			USD	33.00		USD	1,840		(84,000	)
Take-Two Interactive Software, Inc.	201	05/05/23			USD	120.00		USD	2,398		(86,430	)
Tesla, Inc.	122	05/05/23			USD	205.00		USD	2,531		(208,620	)
Trip.com Group Ltd., ADR	990	05/05/23			USD	39.50		USD	3,729		(136,711	)
Unity Software, Inc.	325	05/05/23			USD	32.00		USD	1,054		(104,812	)
Credo Technology Group Holding Ltd.	1,708	05/09/23			USD	19.40		USD	1,609		(2	)
Wolfspeed, Inc.	817	05/12/23			USD	68.80		USD	5,306		(315,863	)
Array Technologies, Inc.	700	05/19/23	��		USD	21.00		USD	1,532		(212,103	)
Aspen Technology, Inc.	105	05/19/23			USD	230.00		USD	2,403		(129,150	)
Axcelis Technologies, Inc.	82	05/19/23			USD	140.00		USD	1,093		(65,600	)
Calix, Inc.	176	05/19/23			USD	60.00		USD	943		(32,120	)
Coupang, Inc.	645	05/19/23			USD	17.50		USD	1,032		(42,248	)
Credo Technology Group Holding Ltd.	658	05/19/23			USD	17.50		USD	620		(6,580	)
Credo Technology Group Holding Ltd.	1,619	05/19/23			USD	20.00		USD	1,525		(8,095	)
Grid Dynamics Holdings, Inc.	330	05/19/23			USD	12.50		USD	378		(18,150	)
Jabil, Inc.	787	05/19/23			USD	85.00		USD	6,938		(448,590	)
Kanzhun Ltd., ADR	754	05/19/23			USD	20.00		USD	1,435		(118,755	)
Lattice Semiconductor Corp.	508	05/19/23			USD	96.00		USD	4,851		(343,910	)
Marvell Technology, Inc.	428	05/19/23			USD	45.00		USD	1,853		(102,292	)
Monolithic Power Systems, Inc.	125	05/19/23			USD	500.00		USD	6,257		(459,375	)
Pinterest, Inc., Class A	274	05/19/23			USD	29.00		USD	747		(42,196	)
Pure Storage, Inc., Class A	1,090	05/19/23			USD	26.00		USD	2,781		(125,350	)
Qorvo, Inc.	223	05/19/23			USD	100.00		USD	2,265		(154,985	)
Rambus, Inc.	746	05/19/23			USD	47.00		USD	3,824		(462,520	)
Rapid7, Inc.	360	05/19/23			USD	45.00		USD	1,653		(268,200	)
Shift4 Payments, Inc., Class A	150	05/19/23			USD	70.00		USD	1,137		(164,250	)
Tenable Holdings, Inc.	205	05/19/23			USD	50.00		USD	974		(48,175	)
Tesla, Inc.	164	05/19/23			USD	225.00		USD	3,402		(183,270	)
Unity Software, Inc.	102	05/19/23			USD	35.00		USD	331		(31,365	)
Axcelis Technologies, Inc.	82	06/16/23			USD	140.00		USD	1,093		(82,410	)
Credo Technology Group Holding Ltd.	1,530	06/16/23			USD	9.77		USD	1,441		(118,575	)
										$	(13,757,928	)

OTC Options Written

Description	Counterparty	Number of Contracts		Expiration Date	Exercise Price			Notional Amount (000)			Value
Call
Altium Ltd.	Goldman Sachs International		54,000	04/04/23		AUD	40.12		AUD	2,056	$	(483	)
BE Semiconductor Industries NV	Goldman Sachs International		54,000	04/04/23		EUR	71.43		EUR	4,325		(509,588	)
Prosus NV	JPMorgan Chase Bank N.A.		33,900	04/04/23		EUR	77.28		EUR	2,439		(398	)
Soitec SA	UBS AG		20,700	04/04/23		EUR	137.71		EUR	3,055		(224,040	)
Xero Ltd.	Goldman Sachs International		86,200	04/04/23		AUD	81.68		AUD	7,708		(449,092	)
Zhejiang Supcon Technology Co. Ltd., Class A	JPMorgan Chase Bank N.A.		151,000	04/04/23		CNY	96.48		CNY	15,692		(162,955	)
Grid Dynamics Holdings, Inc.	JPMorgan Chase Bank N.A.		77,000	04/10/23		USD	13.47		USD	882		(504	)
CTS Eventim AG & Co. KGaA	Morgan Stanley & Co. International PLC		10,000	04/11/23		EUR	66.90		EUR	575		(6	)
Freee KK	JPMorgan Chase Bank N.A.		88,100	04/11/23		JPY	3,866.40		JPY	296,897		(9,932	)
GMO Payment Gateway, Inc.	Societe Generale		25,000	04/11/23		JPY	12,338.40		JPY	284,500		(5,504	)
Informa PLC	Goldman Sachs International		457,900	04/11/23		GBP	6.99		GBP	3,171		(47,522	)
Lasertec Corp.	Societe Generale		73,800	04/11/23		JPY	24,378.62		JPY	1,718,064		(217,443	)
Synopsys, Inc.	JPMorgan Chase Bank N.A.		31,800	04/11/23		USD	386.17		USD	12,283		(254,812	)
Altium Ltd.	Goldman Sachs International		60,000	04/12/23		AUD	38.01		AUD	2,285		(34,948	)

5

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2023 BlackRock Science and Technology Trust II (BSTZ)

OTC Options Written (continued)

Description	Counterparty	Number of Contracts		Expiration Date	Exercise Price			Notional Amount (000)			Value
Call (continued)
ASM International NV	Goldman Sachs International		28,200	04/12/23		EUR	334.91		EUR	10,488	$	(1,173,373	)
Glodon Co. Ltd., Class A	Morgan Stanley & Co. International PLC		326,600	04/12/23		CNY	61.80		CNY	24,266		(597,345	)
SiteMinder Ltd.	Goldman Sachs International		38,000	04/12/23		AUD	4.45		AUD	130		(12	)
Soitec SA	JPMorgan Chase Bank N.A.		18,300	04/12/23		EUR	146.41		EUR	2,701		(68,466	)
Wise PLC, Class A	Morgan Stanley & Co. International PLC		179,800	04/12/23		GBP	6.10		GBP	978		(6,980	)
SK Hynix, Inc.	Goldman Sachs International		19,700	04/13/23		KRW	96,357.47		KRW	1,745,420		(5,491	)
CTS Eventim AG & Co. KGaA	UBS AG		10,000	04/18/23		EUR	62.64		EUR	575		(1,832	)
SiteMinder Ltd.	Goldman Sachs International		38,000	04/18/23		AUD	4.45		AUD	130		(65	)
Altium Ltd.	Societe Generale		54,000	04/19/23		AUD	40.13		AUD	2,056		(10,178	)
CTS Eventim AG & Co. KGaA	Goldman Sachs International		17,100	04/19/23		EUR	63.60		EUR	982		(1,804	)
Delta Electronics, Inc.	Morgan Stanley & Co. International PLC		72,000	04/19/23		TWD	298.48		TWD	21,672		(17,585	)
Freee KK	BNP Paribas SA		93,100	04/19/23		JPY	3,370.50		JPY	313,747		(124,556	)
SiteMinder Ltd.	Goldman Sachs International		50,000	04/19/23		AUD	4.07		AUD	172		(580	)
Soitec SA	Goldman Sachs International		7,000	04/19/23		EUR	151.44		EUR	1,033		(13,526	)
Wise PLC, Class A	Morgan Stanley & Co. International PLC		72,900	04/19/23		GBP	6.17		GBP	396		(4,786	)
Yageo Corp.	JPMorgan Chase Bank N.A.		73,000	04/19/23		TWD	494.63		TWD	38,617		(92,162	)
Accton Technology Corp.	JPMorgan Chase Bank N.A.		382,000	04/26/23		TWD	313.92		TWD	121,858		(192,207	)
Alchip Technologies Ltd.	Morgan Stanley & Co. International PLC		63,000	04/26/23		TWD	1,045.59		TWD	78,120		(423,499	)
Appier Group, Inc.	JPMorgan Chase Bank N.A.		164,400	04/26/23		JPY	2,301.20		JPY	275,863		(2,166	)
ASPEED Technology, Inc.	Morgan Stanley & Co. International PLC		22,000	04/26/23		TWD	2,655.31		TWD	57,970		(108,038	)
eMemory Technology, Inc.	Morgan Stanley & Co. International PLC		30,000	04/26/23		TWD	2,065.44		TWD	55,800		(27,964	)
Nexon Co. Ltd.	JPMorgan Chase Bank N.A.		141,700	04/26/23		JPY	3,177.73		JPY	447,064		(88,374	)
SiteMinder Ltd.	Goldman Sachs International		38,000	04/26/23		AUD	4.45		AUD	130		(208	)
SK Hynix, Inc.	JPMorgan Chase Bank N.A.		22,500	04/26/23		KRW	90,884.37		KRW	1,993,500		(42,926	)
Soitec SA	Citibank N.A.		9,200	04/26/23		EUR	154.67		EUR	1,358		(15,010	)
TCL Technology Group Corp., Class A	JPMorgan Chase Bank N.A.		2,150,000	04/26/23		CNY	4.51		CNY	9,531		(28,831	)
Wise PLC, Class A	Goldman Sachs International		90,300	04/26/23		GBP	6.04		GBP	491		(11,528	)
Wise PLC, Class A	Morgan Stanley & Co. International PLC		40,500	04/26/23		GBP	5.92		GBP	220		(6,597	)
Altium Ltd.	Morgan Stanley & Co. International PLC		63,000	04/27/23		AUD	38.64		AUD	2,399		(41,585	)
Wolters Kluwer NV	Goldman Sachs International		59,100	04/27/23		EUR	116.42		EUR	6,876		(139,386	)
Grid Dynamics Holdings, Inc.	Bank of America N.A.		70,000	04/28/23		USD	12.35		USD	802		(20,024	)
BE Semiconductor Industries NV	Goldman Sachs International		16,100	05/02/23		EUR	79.19		EUR	1,290		(49,355	)
CTS Eventim AG & Co. KGaA	UBS AG		17,000	05/02/23		EUR	62.18		EUR	977		(9,797	)
GMO Payment Gateway, Inc.	BNP Paribas SA		22,200	05/02/23		JPY	11,730.62		JPY	252,636		(52,985	)
SiteMinder Ltd.	Goldman Sachs International		41,000	05/02/23		AUD	4.02		AUD	141		(1,422	)
Yageo Corp.	JPMorgan Chase Bank N.A.		72,000	05/02/23		TWD	494.63		TWD	38,088		(99,023	)
Kanzhun Ltd., ADR	Citibank N.A.		15,000	05/04/23		USD	24.40		USD	285		(3,615	)
SiteMinder Ltd.	Goldman Sachs International		41,000	05/04/23		AUD	4.06		AUD	141		(1,395	)
Samsung SDI Co. Ltd.	JPMorgan Chase Bank N.A.		19,100	05/09/23		KRW	748,391.33		KRW	14,038,500		(373,628	)
Soitec SA	JPMorgan Chase Bank N.A.		6,600	05/09/23		EUR	146.82		EUR	974		(45,635	)
Altium Ltd.	JPMorgan Chase Bank N.A.		37,100	05/10/23		AUD	39.00		AUD	1,413		(27,438	)
Informa PLC	Goldman Sachs International		359,900	05/10/23		GBP	7.01		GBP	2,493		(83,929	)
Lattice Semiconductor Corp.	JPMorgan Chase Bank N.A.		45,600	05/12/23		USD	91.50		USD	4,355		(398,154	)
Adyen NV	Goldman Sachs International		7,200	05/16/23		EUR	1,486.73		EUR	10,506		(555,761	)
Delta Electronics, Inc.	UBS AG		344,000	05/16/23		TWD	304.40		TWD	103,544		(91,029	)
GMO Payment Gateway, Inc.	JPMorgan Chase Bank N.A.		25,600	05/16/23		JPY	11,993.35		JPY	291,328		(60,899	)
Prosus NV	UBS AG		17,800	05/16/23		EUR	72.76		EUR	1,281		(65,063	)
Soitec SA	JPMorgan Chase Bank N.A.		7,100	05/16/23		EUR	146.21		EUR	1,048		(58,996	)
Altium Ltd.	Morgan Stanley & Co. International PLC		37,100	05/17/23		AUD	38.34		AUD	1,413		(38,953	)
Lotes Co. Ltd.	JPMorgan Chase Bank N.A.		40,000	05/18/23		TWD	959.72		TWD	36,720		(41,294	)
Sungrow Power Supply Co. Ltd., Class A	Morgan Stanley & Co. International PLC		180,200	05/18/23		CNY	111.06		CNY	18,908		(115,150	)
TCL Technology Group Corp., Class A	Morgan Stanley & Co. International PLC		1,466,800	05/18/23		CNY	4.56		CNY	6,502		(25,332	)
Glodon Co. Ltd., Class A	Morgan Stanley & Co. International PLC		184,200	05/23/23		CNY	71.01		CNY	13,686		(162,254	)
Informa PLC	UBS AG		336,300	05/23/23		GBP	7.07		GBP	2,329		(81,321	)
Lotes Co. Ltd.	JPMorgan Chase Bank N.A.		40,000	05/23/23		TWD	969.04		TWD	36,720		(40,307	)
Shenzhen Inovance Technology Co. Ltd., Class A	Morgan Stanley & Co. International PLC		425,400	05/23/23		CNY	73.76		CNY	29,925		(107,145	)
Wise PLC, Class A	JPMorgan Chase Bank N.A.		51,000	05/23/23		GBP	5.72		GBP	277		(17,410	)
Wiwynn Corp.	JPMorgan Chase Bank N.A.		59,000	05/24/23		TWD	1,248.05		TWD	66,375		(76,614	)
											$	(7,868,215	)

CONSOLIDATED  SCHEDULE   OF  INVESTMENTS 6

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2023 BlackRock Science and Technology Trust II (BSTZ)

Fair Value Hierarchy as of Period End

Various inputs are used in determining the fair value of financial instruments. These inputs to valuation techniques are categorized into a fair value hierarchy consisting of three broad levels for financial reporting purposes as follows:

• Level 1 – Unadjusted price quotations in active markets/exchanges for identical assets or liabilities that the Trust has the ability to access;

• Level 2 – Other observable inputs (including, but not limited to, quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market–corroborated inputs); and

• Level 3 – Unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including the Valuation Committee’s assumptions used in determining the fair value of financial instruments).

The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Accordingly, the degree of judgment exercised in determining fair value is greatest for instruments categorized in Level 3. The inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the fair value hierarchy classification is determined based on the lowest level input that is significant to the fair value measurement in its entirety. Investments classified within Level 3 have significant unobservable inputs used by the Valuation Committee in determining the price for Fair Valued Investments. Level 3 investments include equity or debt issued by privately held companies or funds. There may not be a secondary market, and/or there are a limited number of investors. The categorization of a value determined for financial instruments is based on the pricing transparency of the financial instruments and is not necessarily an indication of the risks associated with investing in those securities. For information about the Trust’s policy regarding valuation of financial instruments, refer to its most recent financial statements.

Certain investments of the Trust were fair valued using net asset value (“NAV”) as a practical expedient as no quoted market value is available and therefore have been excluded from the fair value hierarchy.

The following table summarizes the Trust’s financial instruments categorized in the fair value hierarchy. The breakdown of the Trust’s financial instruments into major categories is disclosed in the Consolidated Schedule of Investments above.

	Level 1		Level 2		Level 3		Total
Assets
Investments
Long-Term Investments
Common Stocks
Automobiles	$	41,346,156	$	—	$	—	$	41,346,156
Banks		—		—		17,151,685		17,151,685
Broadline Retail		36,496,494		10,126,274		—		46,622,768
Communications Equipment		4,879,584		10,362,985		—		15,242,569
Diversified Consumer Services		—		—		8,251,944		8,251,944
Electrical Equipment		8,209,967		6,887,999		—		15,097,966
Electronic Equipment, Instruments & Components		27,496,751		56,740,715		—		84,237,466
Entertainment		29,189,104		17,084,032		—		46,273,136
Financial Services		13,230,966		46,823,573		—		60,054,539
Health Care Technology		—		5,600,113		—		5,600,113
Hotels, Restaurants & Leisure		27,660,694		—		—		27,660,694
Household Durables		—		5,825,570		—		5,825,570
Interactive Media & Services		17,679,129		—		—		17,679,129
IT Services		48,452,579		—		29,349,534		77,802,113
Machinery		—		10,894,273		—		10,894,273
Media		—		24,891,219		—		24,891,219
Professional Services		6,889,901		18,655,854		—		25,545,755
Real Estate Management & Development		8,641,757		—		—		8,641,757
Semiconductors & Semiconductor Equipment		215,423,736		151,482,571		3,194,961		370,101,268
Software		149,658,696		73,818,662		37,278,626		260,755,984
Specialty Retail		6,295,852		—		—		6,295,852
Technology Hardware, Storage & Peripherals		20,033,156		5,453,907		—		25,487,063
Preferred Securities
Preferred Stocks		—		—		408,059,780		408,059,780
Warrants		—		—		2,346		2,346
Short-Term Securities
Money Market Funds		720,151		—		—		720,151
	$	662,304,673	$	444,647,747	$	503,288,876		1,610,241,296
Investments Valued at NAV(a)								21,313,385
							$	1,631,554,681

7

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2023 BlackRock Science and Technology Trust II (BSTZ)

Fair Value Hierarchy as of Period End (continued)

	Level 1			Level 2			Level 3		Total
Derivative Financial Instruments(b)
Liabilities
Equity Contracts	$	(10,800,898	)	$	(10,825,245	)	$	—	$	(21,626,143	)

^(a)  Certain investments of the Trust were fair valued using NAV as a practical expedient as no quoted market value is available and therefore have been excluded from the fair value hierarchy.

^(b)  Derivative financial instruments are options written. Options written are shown at value.

A reconciliation of Level 3 financial instruments is presented when the Trust had a significant amount of Level 3 investments and derivative financial instruments at the beginning and/or end of the period in relation to net assets. The following table is a reconciliation of Level 3 investments for which significant unobservable inputs were used in determining fair value:

	Common Stocks		Preferred Stocks			Warrants			Total
Assets
Opening balance, as of December 31, 2022	$	94,490,236	$	413,908,201		$	44,581		$	508,443,018
Transfers into Level 3		—		—			—			—
Transfers out of Level 3		—		—			—			—
Accrued discounts/premiums		—		—			—			—
Net realized gain (loss)		—		—			—			—
Net change in unrealized appreciation (depreciation)(a)		736,514		(5,848,421	)		(42,235	)		(5,154,142	)
Purchases		—		—			—			—
Sales		—		—			—			—
Closing balance, as of March 31, 2023	$	95,226,750	$	408,059,780		$	2,346		$	503,288,876
Net change in unrealized appreciation (depreciation) on investments still held at March 31, 2023(a)	$	736,514	$	(5,848,421	)	$	(42,235	)	$	(5,154,142	)

^(a)  Any difference between net change in unrealized appreciation (depreciation) and net change in unrealized appreciation (depreciation) on investments still held at March 31, 2023 is generally due to investments no longer held or categorized as Level 3 at period end.

The following table summarizes the valuation approaches used and unobservable inputs utilized by the BlackRock Valuation Committee (the “Valuation Committee”) to determine the value of certain of the Trust’s Level 3 financial instruments as of period end.

		Value	Valuation Approach	Unobservable Inputs	Range of Unobservable Inputs Utilized	(a)	Weighted Average of Unobservable Inputs Based on Fair Value
Assets
Common Stocks	$	95,226,750	Market	Revenue Multiple	1.80x - 29.31x		13.81x
				Volatility	37% - 70%		42%
				Time to Exit	0.5 - 3.0 years		0.7 years
				Market Adjustment Multiple	0.55x		—
Preferred Stocks		408,059,780	Market	Revenue Multiple	3.15x - 29.31x		16.29x
				Time to Exit	3.0 - 4.0 years		3.8 years
				Volatility	37% - 70%		52%
				Market Adjustment Multiple	0.55x - 0.95x		0.94x
				Gross Profit Multiple	7.32x		—
				Recent Transactions	(b)		—
Warrants		2,346	Market	Revenue Multiple	7.25x		—
				Volatility	37%		—
				Time to Exit	0.5 years		—
	$	503,288,876

^(a)  A significant change in unobservable input would have resulted in a correlated (inverse) significant change to value.

^(b)  For the period end March 31, 2023, the valuation technique for certain investments classified as Preferred Stock used recent prior transaction prices as inputs within the model used for the approximation of fair value.

CONSOLIDATED  SCHEDULE   OF  INVESTMENTS 8

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2023 BlackRock Science and Technology Trust II (BSTZ)

Currency Abbreviation
AUD	Australian Dollar
CAD	Canadian Dollar
CNY	Chinese Yuan
EUR	Euro
GBP	British Pound
JPY	Japanese Yen
KRW	South Korean Won
TWD	New Taiwan Dollar
USD	United States Dollar
Portfolio Abbreviation
ADR	American Depositary Receipt
GDR	Global Depositary Receipt
JSC	Joint Stock Company

9