BlackRock Science and Technology Trust II (BSTZ) NPORT-P BlackRock Science & Technology Trust II (Mar 2022 report)

Consolidated Schedule of Investments (unaudited)  March 31, 2022 BlackRock Science and Technology Trust II (BSTZ) (Percentages shown are based on Net Assets)

Security	Shares		Value
Common Stocks
Automobiles(a) — 4.1%
Arrival SA(b)		2,783,376	$	10,381,993
Tesla, Inc.		84,712		91,285,651
				101,667,644
Capital Markets — 0.2%
Coinbase Global, Inc., Class A(a)		31,396		5,960,845
Diversified Consumer Services — 0.9%
Think & Learn Private Ltd., (Acquired 09/30/20, Cost: $7,113,729)(a)(c)(d)		4,651		21,866,298
Electronic Equipment, Instruments & Components — 2.4%
GoerTek, Inc., Class A		2,511,200		13,493,818
Jabil, Inc.		203,377		12,554,462
Samsung SDI Co. Ltd.		69,427		33,789,403
				59,837,683
Entertainment(a) — 2.2%
HYBE Co. Ltd.		98,853		24,982,516
Roku, Inc.		102,250		12,808,857
Take-Two Interactive Software, Inc.		120,690		18,554,881
				56,346,254
Hotels, Restaurants & Leisure — 0.6%
Trip.com Group Ltd., ADR(a)		639,900		14,794,488
Interactive Media & Services — 5.2%
Eventbrite, Inc., Class A(a)		663,354		9,797,739
Kakao Corp.		689,984		59,972,385
Snap, Inc., Class A(a)		924,857		33,285,603
ZoomInfo Technologies, Inc., CLass A(a)		470,942		28,134,075
				131,189,802
Internet & Direct Marketing Retail(a) — 2.1%
Cazoo Group Ltd.(b)		5,192,246		14,330,599
Farfetch Ltd., Class A		832,481		12,587,113
MercadoLibre, Inc.(e)		20,886		24,843,479
				51,761,191
IT Services — 20.0%
Adyen NV(a)(f)		14,925		29,561,850
Automattic, Inc., Series E, (Acquired 02/03/21, Cost: $34,000,000)(a)(c)(d)		400,000		29,432,000
Block, Inc.(a)(e)		258,484		35,050,430
Cloudflare, Inc., Class A(a)		219,918		26,324,185
Dlocal Ltd.(a)		378,649		11,836,568
Endava PLC, ADR(a)		342,559		45,570,624
GMO Payment Gateway Inc.		225,400		22,962,871
Grid Dynamics Holdings, Inc.(a)		912,609		12,849,535
Klarna Holdings AB, (Acquired 08/07/19, Cost: $23,354,997)(a)(c)(d)		86,839		129,605,157
Locaweb Servicos de Internet SA(a)(f)		10,701,003		22,700,902
MongoDB, Inc.(a)		73,017		32,389,611
Okta, Inc.(a)		134,592		20,318,008
Shift4 Payments, Inc., Class A(a)		330,907		20,493,070
Thoughtworks Holding Inc.(a)		662,820		13,793,284
TRAX Ltd., (Acquired 09/12/19, Cost: $10,999,987)(a)(c)(d)		293,333		13,962,651

Security	Shares		Value
IT Services (continued)
TRAX Ltd., Series D, (Acquired 02/18/21, Cost: $9,999,998)(a)(c)(d)		191,806	$	9,129,966
Twilio, Inc., Class A(a)		164,211		27,063,615
				503,044,327
Professional Services — 1.5%
Legalzoom.com, Inc.(a)		677,631		9,581,702
TransUnion		274,887		28,406,823
				37,988,525
Road & Rail — 0.7%
Lyft, Inc., Class A(a)(e)		474,493		18,220,531
Semiconductors & Semiconductor Equipment — 19.6%
Alphawave IP Group PLC(a)		1,827,250		4,247,474
Ambarella, Inc.(a)		79,596		8,351,212
ASM International NV		59,152		21,539,113
BE Semiconductor Industries NV		266,772		22,740,522
CNEX Labs, Inc., (Acquired 12/14/21, Cost: $5,699,998)(a)(c)(d)		1,161,804		3,775,863
Credo Technology Group Holding Ltd., (Acquired 01/27/22, Cost: $21,617,979)(a)(d)		4,284,241		63,128,398
Lasertec Corp.		263,900		43,903,460
Lattice Semiconductor Corp.(a)		502,459		30,624,876
MACOM Technology Solutions Holdings, Inc., Class H(a)		293,944		17,598,427
Marvell Technology Inc.(e)		1,475,591		105,814,631
Monolithic Power Systems, Inc.		85,806		41,674,258
Nordic Semiconductor ASA(a)		279,928		7,130,794
Silergy Corp.		310,000		36,347,741
Soitec SA(a)		162,004		30,389,413
Wolfspeed, Inc.(a)(e)		484,481		55,163,007
				492,429,189
Software — 18.6%
Altair Engineering, Inc., Class A(a)		183,066		11,789,450
Altium Ltd.		878,972		22,150,962
AppLovin Corp., Class A(a)		409,865		22,571,265
Aspen Technology, Inc.(a)		75,978		12,564,482
Atlassian Corp. PLC, Class A(a)		86,427		25,394,845
Avalara, Inc.(a)		171,201		17,036,211
AvidXchange Holdings, Inc.(a)		534,329		4,301,348
AvidXchange, Inc., (Acquired 07/29/20, Cost: $7,474,330)(a)(d)		610,000		4,895,496
Confluent, Inc., Class A(a)		204,756		8,394,996
Crowdstrike Holdings, Inc., Class A(a)		119,985		27,246,194
Databricks, Inc., (Acquired 07/24/20, Cost: $5,501,686)(a)(c)(d)		114,553		20,289,627
DataRobot, Inc., (Acquired 03/01/21, Cost: $1,384,813)(a)(c)(d)		92,093		2,504,009
Elastic NV(a)		179,988		16,009,933
Freee KK(a)		371,500		13,186,884
Gitlab, Inc., Class A(a)(b)		626,482		34,111,945
Kakaopay Corp., (Acquired 10/22/21, Cost: $9,483,703)(a)(d)		122,803		14,907,867
Lightspeed Commerce, Inc.(a)		615,355		18,768,537
Samsara, Inc., Class A(a)(b)		642,531		10,293,347
SiteMinder Ltd.(a)		7,271,400		24,742,088
Snorkel AI, Inc., (Acquired 10/13/20, Cost: $2,017,593)(a)(c)(d)		500,250		6,838,417

1

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2022 BlackRock Science and Technology Trust II (BSTZ) (Percentages shown are based on Net Assets)

Security	Shares		Value
Software (continued)
Snyk Ltd., (Acquired 11/02/20, Cost: $9,287,400)(a)(c)(d)		1,267,643	$	15,972,302
Synopsys, Inc.(a)		113,770		37,916,128
Trade Desk, Inc., Class A(a)		228,664		15,834,982
Unity Software, Inc.(a)		235,916		23,405,226
Xero Ltd.(a)		262,237		19,874,329
Zscaler, Inc.(e)		156,495		37,759,114
				468,759,984
Technology Hardware, Storage & Peripherals — 1.3%
Pure Storage, Inc., Class A(a)		915,011		32,309,038
Total Common Stocks — 79.4% (Cost: $1,143,727,690)				1,996,175,799
Preferred Securities
Preferred Stocks — 20.8%(c)(d)
Communications Equipment — 0.6%
Astranis Space Technologies Corp., Series C, (Acquired 03/19/21, Cost: $17,000,010)		775,515		15,223,359
Diversified Consumer Services — 0.9%
Think & Learn Private Ltd., Series F, (Acquired 09/30/20, Cost: $14,251,080)(a)		4,920		23,130,980
Diversified Financial Services — 0.1%
Snorkel Al, Inc., Series B, (Acquired 10/13/20, Cost: $999,996)		247,943		3,389,381
Entertainment — 0.2%
ResearchGate GmbH, Series D, (Acquired 09/24/20, Cost: $6,999,988)		424,688		6,145,235
Food & Staples Retailing — 1.6%
GrubMarket, Inc. , Series D, (Acquired 07/23/20, Cost: $8,000,001)		1,762,969		39,966,507
Food Products — 0.8%
Farmer’s Business Network, Inc., Series F, (Acquired 07/31/20, Cost: $11,961,002)		361,834		20,367,636
Interactive Media & Services — 2.1%
ByteDance Ltd., Series E-1, (Acquired 11/11/20, Cost: $35,000,075)		319,419		51,460,818
IT Services — 1.8%
Deep Instinct Ltd., Series D-2, (Acquired 03/19/21, Cost: $12,000,008)		1,974,374		11,411,882
Trumid Holdings LLC(g)
Class J-A, (Acquired 07/24/20, Cost: $9,999,857)		20,154		17,124,451
Class J-B, (Acquired 07/24/20, Cost: $5,999,914)		20,154		17,124,450
				45,660,783
Road & Rail — 0.5%
FlixMobility GmbH, Series F, (Acquired 07/26/19, Cost: $16,947,253)		850		12,775,083
Semiconductors & Semiconductor Equipment — 5.5%
Mythic AI, Inc., Series C, (Acquired 01/26/21, Cost: $7,000,000)		1,018,908		6,164,394
Psiquantum Corp., Series C, (Acquired 09/09/19, Cost: $9,101,310)		1,962,335		40,325,984

Security	Shares		Value
Semiconductors & Semiconductor Equipment (continued)
PsiQuantum Corp., Series C, (Acquired 05/21/21, Cost: $19,999,969)		762,595	$	19,652,073
SambaNova Systems, Inc.
Series C, (Acquired 02/20/20, Cost: $33,904,161)		636,800		64,189,440
Series D, (Acquired 04/09/21, Cost: $6,999,979)		73,670		7,425,936
				137,757,827
Software — 6.7%
Databricks, Inc.
Series F, (Acquired 10/22/19, Cost: $13,200,019)		307,346		54,437,123
Series G, (Acquired 02/01/21, Cost: $18,500,004)		104,303		18,474,147
DataRobot, Inc., Series F, (Acquired 10/27/20, Cost: $11,499,999)		875,059		23,801,605
Rapyd Financial Network Ltd., Series E, (Acquired 03/31/21, Cost: $13,999,978)		190,705		15,946,752
Snyk Ltd. , (Acquired 11/02/20, Cost: $13,212,590)		2,663,936		33,565,594
Unqork, Inc.
Series B, (Acquired 09/19/19, Cost: $6,801,016)		597,680		14,326,390
Series C, (Acquired 09/18/20, Cost: $7,994,787)		292,000		6,999,240
				167,550,851
				523,428,460
Total Preferred Securities — 20.8% (Cost: $301,372,996)				523,428,460
Warrants
IT Services — 0.0%
TRAX Ltd. (Expires 09/15/2023), (Acquired 09/12/19, Cost: $0)(a)(c)(d)		46,928		259,043
Total Warrants — 0.0% (Cost: $ — )				259,043
Total Long-Term Investments — 100.2% (Cost: $1,445,100,686)				2,519,863,302
Short-Term Securities
Money Market Funds — 1.9%
BlackRock Liquidity Funds, T-Fund, Institutional Class, 0.21%(h)(i)		30,999,455		30,999,455
SL Liquidity Series, LLC, Money Market Series, 0.43%(h)(i)(j)		16,658,815		16,653,818
Total Short-Term Securities — 1.9% (Cost: $47,651,612)				47,653,273
Total Investments Before Options Written — 102.1% (Cost: $1,492,752,298)				2,567,516,575
Options Written — (1.3)% (Premiums Received: $(22,471,621))				(32,703,250	)
Total Investments, Net of Options Written — 100.8% (Cost: $1,470,280,677)				2,534,813,325
Liabilities in Excess of Other Assets — (0.8)%				(19,484,235	)
Net Assets — 100.0%			$	2,515,329,090

^(a)  Non-income producing security.

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

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

CONSOLIDATED   SCHEDULE    OF   INVESTMENTS 2

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2022 BlackRock Science and Technology Trust II (BSTZ)

^(d)  Restricted security as to resale, excluding 144A securities. The Trust held restricted securities with a current value of $859,995,554, representing 34.2% of its net assets as of period end, and an original cost of $449,309,209.

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

^(f)  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.

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

^(h)  Affiliate of the Trust.

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

^(j)  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, 2022 for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

Affiliated Issuer	Value at 12/31/21		Purchases at Cost			Proceeds from Sales			Net Realized Gain (Loss)			Change in Unrealized Appreciation (Depreciation)		Value at 03/31/22		Shares Held at 03/31/22		Income			Capital Gain Distributions from Underlying Funds
BlackRock Liquidity Funds, T-Fund, Institutional Class	$	46,915,934	$	—		$	(15,916,479	)(a)	$	—		$	—	$	30,999,455		30,999,455	$	4,281		$	—
SL Liquidity Series, LLC, Money Market Series		1,949,219		14,704,984	(a)		—			(2,046	)		1,661		16,653,818		16,658,815		48,144	(b)		—
									$	(2,046	)	$	1,661	$	47,653,273			$	52,425		$	—

^(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

	Number of		Expiration							Notional
Description	Contracts		Date		Exercise Price			Amount (000)				Value
Call
Atlassian Corp., PLC Class A		128		04/01/22		USD	325.00		USD		3,761	$	(2,560	)
Block, Inc.		173		04/01/22		USD	140.00		USD		2,346		(15,051	)
Cloudflare, Inc., Class A		370		04/01/22		USD	124.00		USD		4,429		(25,345	)
Coinbase Global, Inc., Class A		41		04/01/22		USD	195.00		USD		778		(4,613	)
MercadoLibre, Inc.		8		04/01/22		USD	1,260.00		USD		952		(4,640	)
Twilio, Inc., Class A		194		04/01/22		USD	180.00		USD		3,197		(2,522	)
Zscaler, Inc.		71		04/01/22		USD	260.00		USD		1,713		(817	)
Lattice Semiconductor Corp.		666		04/04/22		USD	58.50		USD		4,059		(195,287	)
Grid Dynamics Holdings, Inc.		900		04/05/22		USD	30.00		USD		1,267		—
Block, Inc.		200		04/08/22		USD	120.00		USD		2,712		(339,500	)
Crowdstrike Holdings, Inc., Class A		68		04/08/22		USD	205.00		USD		1,544		(161,330	)
Farfetch Ltd., Class A		617		04/08/22		USD	25.25		USD		933		(107	)
Lyft, Inc., Class A		154		04/08/22		USD	43.00		USD		591		(1,848	)
Marvell Technology Inc.		785		04/08/22		USD	77.51		USD		5,629		(20,255	)
MercadoLibre, Inc.		31		04/08/22		USD	1,210.00		USD		3,687		(95,790	)
MongoDB, Inc.		32		04/08/22		USD	420.00		USD		1,419		(100,320	)
Okta, Inc.		132		04/08/22		USD	195.00		USD		1,993		(3,432	)
Roku, Inc.		76		04/08/22		USD	155.00		USD		952		(1,406	)
Snap, Inc., Class A		463		04/08/22		USD	42.00		USD		1,666		(6,251	)
Tesla, Inc.		100		04/08/22		USD	890.00		USD		10,776		(1,893,250	)
Unity Software, Inc.		283		04/08/22		USD	115.00		USD		2,808		(9,198	)
Zscaler, Inc.		72		04/08/22		USD	275.00		USD		1,737		(3,456	)
Zscaler, Inc.		72		04/08/22		USD	260.00		USD		1,737		(12,204	)
Altair Engineering, Inc., Class A		277		04/14/22		USD	70.00		USD		1,784		(96,950	)
Applovin Corp., Class A		525		04/14/22		USD	75.00		USD		2,891		(15,750	)

3

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2022 BlackRock Science and Technology Trust II (BSTZ)     

Exchange-Traded Options Written (continued)

	Number of		Expiration							Notional
Description	Contracts		Date		Exercise Price			Amount (000)				Value
Call (continued)
Aspen Technology, Inc.		118		04/14/22		USD	145.00		USD		1,951	$	(238,950	)
Atlassian Corp., PLC Class A		87		04/14/22		USD	270.00		USD		2,556		(260,565	)
Avalara, Inc.		430		04/14/22		USD	115.00		USD		4,279		(22,575	)
Block, Inc.		158		04/14/22		USD	115.00		USD		2,142		(348,785	)
Cloudflare, Inc., Class A		120		04/14/22		USD	120.00		USD		1,436		(75,600	)
Confluent, Inc., Class A		205		04/14/22		USD	85.00		USD		841		(3,075	)
Dlocal Ltd., Class A		296		04/14/22		USD	45.00		USD		925		(4,440	)
Dlocal Ltd., Class A		596		04/14/22		USD	30.00		USD		1,863		(141,550	)
Elastic NV		117		04/14/22		USD	105.00		USD		1,041		(4,680	)
Elastic NV		255		04/14/22		USD	85.00		USD		2,268		(161,925	)
Endava PLC, ADR		325		04/14/22		USD	145.00		USD		4,323		(73,125	)
Endava PLC, ADR		342		04/14/22		USD	150.00		USD		4,550		(63,270	)
Eventbrite, Inc., Class A		1,161		04/14/22		USD	17.50		USD		1,715		(17,415	)
Eventbrite, Inc., Class A		1,160		04/14/22		USD	15.00		USD		1,713		(63,800	)
Farfetch Ltd., Class A		1,238		04/14/22		USD	30.00		USD		1,872		(3,714	)
Farfetch Ltd., Class A		1,058		04/14/22		USD	15.00		USD		1,600		(117,438	)
Gitlab, Inc., Class A		550		04/14/22		USD	65.00		USD		2,995		(59,125	)
Grid Dynamics Holdings, Inc.		765		04/14/22		USD	25.75		USD		1,077		(3,316	)
Jabil, Inc.		355		04/14/22		USD	65.00		USD		2,191		(14,200	)
Lattice Semiconductor Corp.		660		04/14/22		USD	70.00		USD		4,023		(18,150	)
Legalzoom.com, Inc.		1,500		04/14/22		USD	20.00		USD		2,121		(22,500	)
Legalzoom.com, Inc.		871		04/14/22		USD	15.00		USD		1,232		(28,308	)
Lightspeed Commerce, Inc.		906		04/14/22		CAD	43.00		CAD		3,455		(45,657	)
Lightspeed Commerce, Inc.		170		04/14/22		CAD	30.00		CAD		648		(114,566	)
Lyft, Inc., Class A		515		04/14/22		USD	40.00		USD		1,978		(41,458	)
MACOM Technology Solutions Holdings, Inc., Class H		560		04/14/22		USD	64.00		USD		3,353		(40,678	)
Marvell Technology Inc.		1,248		04/14/22		USD	85.00		USD		8,949		(11,232	)
MongoDB, Inc.		47		04/14/22		USD	480.00		USD		2,085		(29,140	)
Monolithic Power Systems, Inc.		185		04/14/22		USD	510.00		USD		8,985		(129,500	)
Okta, Inc.		44		04/14/22		USD	200.00		USD		664		(594	)
Pure Storage, Inc., Class A		2,179		04/14/22		USD	29.00		USD		7,694		(1,405,455	)
Roku, Inc.		72		04/14/22		USD	160.00		USD		902		(2,628	)
Samsara, Inc., Class A		250		04/14/22		USD	30.00		USD		401		(1,250	)
Samsara, Inc., Class A		964		04/14/22		USD	22.50		USD		1,544		(4,820	)
Shift4 Payments, Inc., Class A		266		04/14/22		USD	60.00		USD		1,647		(117,040	)
Snap, Inc., Class A		1,063		04/14/22		USD	39.00		USD		3,826		(76,536	)
Synopsys, Inc.		33		04/14/22		USD	330.00		USD		1,100		(37,950	)
Take-Two Interactive Software, Inc.		186		04/14/22		USD	175.00		USD		2,860		(7,440	)
Tesla, Inc.		51		04/14/22		USD	1,100.00		USD		5,496		(190,230	)
Thoughtworks Holding Inc.		773		04/14/22		USD	25.00		USD		1,609		(23,190	)
TransUnion		516		04/14/22		USD	105.00		USD		5,332		(76,110	)
Trip.com Group Ltd., ADR		1,120		04/14/22		USD	33.50		USD		2,589		(124	)
Trip.com Group Ltd., ADR		1,119		04/14/22		USD	27.00		USD		2,587		(22,380	)
Twilio, Inc., Class A		124		04/14/22		USD	195.00		USD		2,044		(7,998	)
Wolfspeed, Inc.		276		04/14/22		USD	120.00		USD		3,143		(84,870	)
Wolfspeed, Inc.		275		04/14/22		USD	115.00		USD		3,131		(118,250	)
ZoomInfo Technologies, Inc., Class A		507		04/14/22		USD	60.00		USD		3,029		(120,413	)
Atlassian PLC, Class A		53		04/22/22		USD	285.00		USD		1,557		(113,155	)
Block, Inc.		156		04/22/22		USD	140.00		USD		2,115		(105,300	)
Crowdstrike Holdings, Inc., Class A		142		04/22/22		USD	205.00		USD		3,225		(371,330	)
Lyft, Inc., Class A		178		04/22/22		USD	44.00		USD		684		(5,251	)
Marvell Technology Inc.		563		04/22/22		USD	70.00		USD		4,037		(229,423	)
MercadoLibre, Inc.		17		04/22/22		USD	1,080.00		USD		2,022		(230,775	)
Tesla, Inc.		36		04/22/22		USD	935.00		USD		3,879		(565,290	)
Tesla, Inc.		51		04/22/22		USD	1,075.00		USD		5,496		(311,992	)
Trade Desk, Inc., Class A		450		04/22/22		USD	64.00		USD		3,116		(334,125	)
Unity Software, Inc.		71		04/22/22		USD	101.00		USD		704		(37,275	)
Zscaler, Inc.		125		04/22/22		USD	220.00		USD		3,016		(330,625	)
Ambarella, Inc.		139		04/29/22		USD	100.00		USD		1,458		(133,440	)
Block, Inc.		217		04/29/22		USD	120.00		USD		2,943		(431,287	)
Cloudflare, Inc., Class A		280		04/29/22		USD	106.00		USD		3,352		(508,200	)
Coinbase Global, Inc., Class A		47		04/29/22		USD	205.00		USD		892		(37,130	)

CONSOLIDATED   SCHEDULE    OF   INVESTMENTS 4

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2022 BlackRock Science and Technology Trust II (BSTZ)

Exchange-Traded Options Written (continued)

	Number of		Expiration							Notional
Description	Contracts		Date		Exercise Price			Amount (000)				Value
Call (continued)
Lyft, Inc., Class A		178		04/29/22		USD	40.00		USD		684	$	(26,611	)
Marvell Technology Inc.		1,013		04/29/22		USD	73.00		USD		7,264		(289,718	)
MercadoLibre, Inc.		17		04/29/22		USD	1,000.00		USD		2,022		(351,730	)
MongoDB, Inc.		40		04/29/22		USD	450.00		USD		1,774		(100,800	)
Okta, Inc.		48		04/29/22		USD	175.00		USD		725		(9,192	)
Roku, Inc.		76		04/29/22		USD	150.00		USD		952		(17,442	)
Snap, Inc., Class A		787		04/29/22		USD	34.00		USD		2,832		(356,117	)
Take-Two Interactive Software, Inc.		74		04/29/22		USD	150.00		USD		1,138		(61,790	)
Trade Desk, Inc., Class A		275		04/29/22		USD	73.00		USD		1,904		(90,063	)
Twilio, Inc., Class A		250		04/29/22		USD	185.00		USD		4,120		(101,875	)
Unity Software, Inc.		223		04/29/22		USD	110.00		USD		2,212		(68,461	)
Zscaler, Inc.		134		04/29/22		USD	250.00		USD		3,233		(133,665	)
Crowdstrike Holdings, Inc., Class A		209		05/06/22		USD	225.00		USD		4,746		(327,607	)
Lyft, Inc., Class A		278		05/06/22		USD	43.00		USD		1,068		(29,051	)
Okta, Inc.		199		05/06/22		USD	160.00		USD		3,004		(126,365	)
Snap, Inc., Class A		460		05/06/22		USD	39.00		USD		1,656		(116,150	)
Tesla, Inc.		100		05/06/22		USD	1,100.00		USD		10,776		(730,000	)
Zscaler, Inc.		72		05/06/22		USD	265.00		USD		1,737		(48,240	)
Marvell Technology Inc.		1,388		05/13/22		USD	77.00		USD		9,953		(354,634	)
Take-Two Interactive Software, Inc.		162		05/13/22		USD	165.00		USD		2,491		(50,625	)
Ambarella, Inc.		139		05/20/22		USD	110.00		USD		1,458		(93,825	)
Applovin Corp., Class A		909		05/20/22		USD	55.00		USD		5,006		(559,035	)
Aspen Technology, Inc.		147		05/20/22		USD	155.00		USD		2,431		(178,605	)
Atlassian Corp., PLC Class A		34		05/20/22		USD	330.00		USD		999		(40,970	)
Avalara, Inc.		168		05/20/22		USD	90.00		USD		1,672		(238,560	)
Coinbase Global, Inc., Class A		21		05/20/22		USD	200.00		USD		399		(31,185	)
Confluent, Inc., Class A		165		05/20/22		USD	45.00		USD		677		(62,700	)
Dlocal Ltd.		433		05/20/22		USD	45.00		USD		1,354		(16,238	)
Elastic NV		255		05/20/22		USD	90.00		USD		2,268		(173,400	)
Endava PLC, ADR		530		05/20/22		USD	130.00		USD		7,051		(614,800	)
Gitlab, Inc., Class A		550		05/20/22		USD	70.00		USD		2,995		(151,250	)
Grid Dynamics Holdings, Inc.		2,441		05/20/22		USD	15.00		USD		3,437		(427,175	)
Jabil, Inc.		356		05/20/22		USD	65.00		USD		2,198		(54,290	)
Lattice Semiconductor Corp.		935		05/20/22		USD	65.00		USD		5,699		(322,575	)
Lightspeed Commerce, Inc.		906		05/20/22		CAD	45.00		CAD		3,455		(146,392	)
Lightspeed Commerce, Inc.		170		05/20/22		CAD	30.00		CAD		648		(130,204	)
Lyft, Inc., Class A		357		05/20/22		USD	42.50		USD		1,371		(54,978	)
MACOM Technology Solutions Holdings, Inc., Class H		260		05/20/22		USD	65.00		USD		1,557		(61,750	)
MACOM Technology Solutions Holdings, Inc., Class H		208		05/20/22		USD	70.00		USD		1,245		(30,160	)
Marvell Technology Inc.		1,013		05/20/22		USD	80.00		USD		7,264		(189,431	)
MongoDB, Inc.		136		05/20/22		USD	400.00		USD		6,033		(860,880	)
Monolithic Power Systems, Inc.		201		05/20/22		USD	500.00		USD		9,762		(574,860	)
Okta, Inc.		48		05/20/22		USD	170.00		USD		725		(23,040	)
Pure Storage, Inc., Class A		859		05/20/22		USD	35.00		USD		3,033		(206,160	)
Pure Storage, Inc., Class A		164		05/20/22		USD	36.00		USD		579		(30,340	)
Roku, Inc.		133		05/20/22		USD	135.00		USD		1,666		(142,310	)
Samsara, Inc., Class A		1,034		05/20/22		USD	18.00		USD		1,656		(136,158	)
Shift4 Payments, Inc., Class A		297		05/20/22		USD	65.00		USD		1,839		(155,925	)
Shift4 Payments, Inc., Class A		298		05/20/22		USD	70.00		USD		1,846		(98,340	)
Snap, Inc., Class A		463		05/20/22		USD	42.00		USD		1,666		(90,285	)
Synopsys, Inc.		130		05/20/22		USD	340.00		USD		4,333		(199,550	)
Tesla, Inc.		43		05/20/22		USD	1,025.00		USD		4,634		(519,117	)
Thoughtworks Holding Inc.		774		05/20/22		USD	22.50		USD		1,611		(94,815	)
Trade Desk, Inc., Class A		75		05/20/22		USD	80.00		USD		519		(23,250	)
Unity Software, Inc.		248		05/20/22		USD	95.00		USD		2,460		(313,100	)
Wolfspeed, Inc.		275		05/20/22		USD	125.00		USD		3,131		(154,000	)
ZoomInfo Technologies, Inc.		884		05/20/22		USD	70.00		USD		5,281		(137,020	)
Confluent, Inc., Class A		346		06/10/22		USD	51.50		USD		1,419		(90,509	)
Marvell Technology Inc.		630		06/17/22		USD	80.00		USD		4,518		(197,820	)
												$	(22,227,633	)

5

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2022 BlackRock Science and Technology Trust II (BSTZ)     

OTC Options Written

		Number of		Expiration							Notional
Description	Counterparty	Contracts		Date		Exercise Price			Amount (000)				Value
Call
Altium Ltd.	Morgan Stanley & Co. International PLC		85,000		04/01/22		AUD	36.32		AUD		2,902	$	(175	)
Kakao Corp.	Morgan Stanley & Co. International PLC		175,200		04/01/22		USD	90,467.67		USD		18,658,800		(2,314,804	)
Synopsys, Inc.	JPMorgan Chase Bank N.A.		23,400		04/04/22		USD	337.85		USD		7,799		(69,317	)
Kakao Corp.	JPMorgan Chase Bank N.A.		63,300		04/06/22		USD	93,169.44		USD		6,741,450		(696,582	)
Wolfspeed, Inc.	Citibank N.A.		27,600		04/06/22		USD	105.90		USD		3,143		(244,306	)
Adyen NV	Credit Suisse International		5,200		04/07/22		EUR	1,816.42		EUR		9,407		(269,925	)
Alphawave IP Group PLC	Goldman Sachs International		90,900		04/07/22		GBP	1.74		GBP		160		(11,516	)
HYBE Co. Ltd.	Morgan Stanley & Co. International PLC		34,500		04/07/22		USD	294,689.29		USD		10,677,750		(493,193	)
Soitec SA	Goldman Sachs International		3,400		04/07/22		EUR	139.69		EUR		582		(112,424	)
Altair Engineering, Inc., Class A	JPMorgan Chase Bank N.A.		30,000		04/08/22		USD	69.19		USD		1,932		(7,918	)
Freee KK	Goldman Sachs International		43,200		04/12/22		JPY	4,503.12		JPY		189,864		(76,922	)
Samsung SDI Co. Ltd.	JPMorgan Chase Bank N.A.		24,900		04/20/22		USD	581,319.65		USD		14,840,400		(644,131	)
Soitec SA	UBS AG		16,000		04/20/22		EUR	169.02		EUR		2,738		(126,934	)
BE Semiconductor Industries NV	Goldman Sachs International		42,200		04/21/22		EUR	79.92		EUR		3,286		(87,548	)
Gmo Payment Gateway Inc.	Goldman Sachs International		15,900		04/21/22		JPY	12,268.72		JPY		200,022		(98,327	)
Wolfspeed, Inc.	Barclays Bank PLC		43,300		04/21/22		USD	108.34		USD		4,930		(382,991	)
Xero Ltd.	UBS AG		39,200		04/21/22		AUD	105.16		AUD		4,028		(90,465	)
Alphawave IP Group PLC	UBS AG		70,000		04/26/22		GBP	1.57		GBP		123		(24,385	)
TransUnion	Citibank N.A.		44,600		04/26/22		USD	107.91		USD		4,609		(74,630	)
Altium Ltd.	Morgan Stanley & Co. International PLC		85,000		04/27/22		AUD	33.37		AUD		2,902		(120,631	)
Asm International NV	Goldman Sachs International		7,900		04/27/22		EUR	308.19		EUR		2,624		(247,418	)
Gmo Payment Gateway Inc.	UBS AG		15,700		04/27/22		JPY	10,943.86		JPY		197,506		(214,927	)
Nordic Semiconductor ASA	Barclays Bank PLC		97,900		04/27/22		NOK	250.15		NOK		22,243		(36,136	)
Soitec SA	Morgan Stanley & Co. International PLC		9,800		04/27/22		EUR	136.31		EUR		1,677		(365,845	)
Altium Ltd.	Morgan Stanley & Co. International PLC		85,000		05/04/22		AUD	34.93		AUD		2,902		(86,172	)
Asm International NV	Barclays Bank PLC		18,700		05/04/22		EUR	348.81		EUR		6,210		(188,378	)
Xero Ltd.	Societe Generale		1,900		05/04/22		AUD	104.78		AUD		195		(6,329	)
BE Semiconductor Industries NV	Goldman Sachs International		38,600		05/05/22		EUR	85.49		EUR		3,005		(53,261	)
Soitec SA	Morgan Stanley & Co. International PLC		2,200		05/05/22		EUR	182.43		EUR		376		(9,683	)
Wolfspeed, Inc.	BNP Paribas SA		16,000		05/05/22		USD	105.84		USD		1,822		(209,210	)
Freee KK	JPMorgan Chase Bank N.A.		86,800		05/06/22		JPY	4,348.16		JPY		381,486		(339,680	)
Gmo Payment Gateway Inc.	JPMorgan Chase Bank N.A.		47,200		05/06/22		JPY	12,453.00		JPY		593,776		(339,917	)
Silergy Corp.	Morgan Stanley & Co. International PLC		46,000		05/11/22		USD	3,595.20		USD		157,780		(350,964	)
BE Semiconductor Industries NV	Goldman Sachs International		39,300		05/13/22		EUR	88.30		EUR		3,060		(24,667	)
Shift4 Payments, Inc., Class A	BNP Paribas SA		29,700		05/13/22		USD	50.96		USD		1,839		(393,125	)
Soitec SA	Morgan Stanley & Co. International PLC		19,000		05/13/22		EUR	185.82		EUR		3,251		(84,315	)
Lasertec Corp.	JPMorgan Chase Bank N.A.		118,800		05/17/22		JPY	21,414.09		JPY		2,469,258		(1,326,836	)
Soitec SA	Morgan Stanley & Co. International PLC		6,400		05/18/22		EUR	183.39		EUR		1,095		(37,069	)
Thoughtworks Holding Inc.	Bank of America N.A.		77,200		06/03/22		USD	22.36		USD		1,607		(127,934	)
ZoomInfo Technologies, Inc.	JPMorgan Chase Bank N.A.		25,700		06/10/22		USD	65.62		USD		1,535		(86,627	)
													$	(10,475,617	)

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 BlackRock Global Valuation Methodologies Committee’s (the “Global 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

CONSOLIDATED   SCHEDULE    OF   INVESTMENTS 6

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2022 BlackRock Science and Technology Trust II (BSTZ)     

Fair Value Hierarchy as of Period End (continued)

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 Global 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”) per share 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	$	101,667,644		$	—		$	—	$	101,667,644
Capital Markets		5,960,845			—			—		5,960,845
Diversified Consumer Services		—			—			21,866,298		21,866,298
Electronic Equipment, Instruments & Components		12,554,462			47,283,221			—		59,837,683
Entertainment		31,363,738			24,982,516			—		56,346,254
Hotels, Restaurants & Leisure		14,794,488			—			—		14,794,488
Interactive Media & Services		71,217,417			59,972,385			—		131,189,802
Internet & Direct Marketing Retail		51,761,191			—			—		51,761,191
IT Services		268,389,832			52,524,721			182,129,774		503,044,327
Professional Services		37,988,525			—			—		37,988,525
Road & Rail		18,220,531			—			—		18,220,531
Semiconductors & Semiconductor Equipment		259,226,411			229,426,915			3,775,863		492,429,189
Software		323,398,003			99,757,626			45,604,355		468,759,984
Technology Hardware, Storage & Peripherals		32,309,038			—			—		32,309,038
Preferred Securities
Preferred Stocks		—			—			523,428,460		523,428,460
Warrants		—			—			259,043		259,043
Short-Term Securities
Money Market Funds		30,999,455			—			—		30,999,455
	$	1,259,851,580		$	513,947,384		$	777,063,793		2,550,862,757
Investments Valued at NAV(a)										16,653,818
									$	2,567,516,575
Derivative Financial Instruments(b)
Liabilities
Equity Contracts	$	(21,741,199	)	$	(10,962,051	)	$	—	$	(32,703,250	)

^(a)  Certain investments of the Trust were fair valued using NAV per share 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 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			Unfunded SPAC PIPE Commitments			Warrants			Total
Assets
Opening balance, as of December 31, 2021	$	246,829,600	$	565,071,190		$	—	(a)	$	323,803		$	812,224,593
Transfers into Level 3		—		—			—			—			—
Transfers out of Level 3		—		—			—			—			—
Accrued discounts/premiums		—		—			—			—			—
Net realized gain (loss)		—		—			—			—			—
Net change in unrealized appreciation (depreciation)(b)		6,546,690		(20,024,751	)		—	(a)		(64,760	)		(13,542,821	)

7

Consolidated Schedule of Investments (unaudited) (continued) March 31, 2022 BlackRock Science and Technology Trust II (BSTZ)     

	Common Stocks		Preferred Stocks			Unfunded SPAC PIPE Commitments			Warrants			Total
Purchases	$	—	$	—		$	—		$	—		$	—
Sales		—		(21,617,979	)		—			—			(21,617,979	)
Closing balance, as of March 31, 2022	$	253,376,290	$	523,428,460		$	—	(a)	$	259,043		$	777,063,793
Net change in unrealized appreciation (depreciation) on investments still held at March 31, 2022(b)	$	6,546,690	$	(8,139,966	)	$	—	(a)	$	(64,760	)	$	(1,658,036	)

^(a)  Rounds to less than $1.

^(b)  Any difference between net change in unrealized appreciation (depreciation) and net change in unrealized appreciation (depreciation) on investments still held at March 31, 2022 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 Global Valuation Methodologies Committee (the “Global 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	$	253,376,290	Market	Revenue Multiple	3.25x - 30.00x		21.47x
				Volatility	38% - 70%		43%
				Time to Exit	0.5 - 2.0		0.7
Preferred Stocks		523,428,460	Market	Revenue Multiple	3.00x - 30.00x		17.78x
				Volatility	31% - 60%		49%
				Time to Exit	3.0 - 4.0		3.9
				Recent Transactions	$  22.67		—
Warrants		259,043	Market	Volatility	38%		—
				Time to Exit	0.5		—
	$	777,063,793

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

Currency Abbreviation
AUD	Australian Dollar
CAD	Canadian Dollar
EUR	Euro
GBP	British Pound
JPY	Japanese Yen
NOK	Norwegian Krone
USD	United States Dollar
Portfolio Abbreviation
ADR	American Depositary Receipt

CONSOLIDATED   SCHEDULE    OF   INVESTMENTS 8