Consolidated Schedule of Investments (unaudited)

March 31, 2024

  

BlackRock Science and Technology Trust (BST)

(Percentages shown are based on Net Assets)

 

Security   Shares     Value  

Common Stocks

   
Automobiles — 0.9%            

Tesla, Inc.(a)(b)

    65,326     $ 11,483,657  
   

 

 

 
Broadline Retail(b) — 3.8%            

Amazon.com, Inc.

    172,497       31,115,009  

MercadoLibre, Inc.(a)

    11,344       17,151,674  
   

 

 

 
      48,266,683  
Capital Markets — 0.5%            

S&P Global, Inc.

    14,365       6,111,589  
   

 

 

 
Communications Equipment — 1.4%            

Arista Networks, Inc.(b)

    33,716       9,776,966  

Astranis, Series D(b)(c)

    321,116       2,999,223  

Motorola Solutions, Inc.

    15,039       5,338,544  
   

 

 

 
      18,114,733  
Diversified Consumer Services(b)(c)(d) — 0.9%  

Grammarly, Inc., (Acquired 11/17/21,
Cost: $18,749,975)

    715,323       11,559,620  

Think & Learn Private Ltd., Class J-B, (Acquired 09/30/20, Cost: $1,524,948)

    997        
   

 

 

 
      11,559,620  
Entertainment — 2.1%            

Nintendo Co., Ltd.

    138,600       7,562,655  

Spotify Technology SA(b)

    48,954       12,918,961  

Take-Two Interactive Software, Inc.(b)

    44,084       6,546,033  
   

 

 

 
      27,027,649  
Financial Services — 4.1%            

Mastercard, Inc., Class A

    57,758       27,814,520  

Visa, Inc., Class A

    68,838       19,211,309  

Wise PLC, Class A(b)

    499,198       5,835,304  
   

 

 

 
      52,861,133  
Ground Transportation — 1.1%            

Uber Technologies, Inc.(b)

    180,416       13,890,228  
   

 

 

 
Interactive Media & Services — 3.9%            

Alphabet, Inc., Class A(b)

    83,650       12,625,294  

Meta Platforms, Inc., Class A

    74,072       35,967,882  

Patreon, Inc., (Acquired 08/19/21,
Cost: $3,352,226)(b)(c)(d)

    59,524       1,628,577  
   

 

 

 
       50,221,753  
IT Services — 3.0%            

Accenture PLC, Class A

    13,852       4,801,242  

Automattic, Inc., Series E, (Acquired 02/03/21,
Cost: $7,999,945)(b)(c)(d)

    94,117       4,127,030  

Farmer’s Business Network, Inc.(b)(c)

    203,366       734,151  

Klarna Holdings AB, Ordinary Shares, (Acquired 08/07/19, Cost: $7,971,978)(b)(c)(d)

    26,430       8,522,095  

MongoDB, Inc., Class A(b)

    36,979       13,262,148  

Shopify, Inc., Class A(b)(e)

    90,253       6,964,824  
   

 

 

 
      38,411,490  
Professional Services — 1.4%            

Equifax, Inc.

    24,807       6,636,369  

RELX PLC

    245,395       10,582,764  
   

 

 

 
      17,219,133  
Semiconductors & Semiconductor Equipment — 29.8%  

Advanced Micro Devices, Inc.(b)(f)

    138,766       25,045,875  

ARM Holdings PLC, ADR(b)(e)

    98,126       12,264,769  

ASM International NV

    23,667       14,493,722  

ASML Holding NV(e)

    36,870       35,744,027  

Broadcom, Inc.(a)

    32,247       42,740,496  
Security   Shares     Value  
Semiconductors & Semiconductor Equipment (continued)  

Credo Technology Group Holding Ltd.(b)

    468,185     $ 9,920,840  

Lam Research Corp.

    18,864       18,327,696  

Marvell Technology, Inc.

    131,129       9,294,424  

Micron Technology, Inc.

    225,495       26,583,606  

Monolithic Power Systems, Inc.(a)

    13,811       9,355,848  

NVIDIA Corp.(a)(f)

    166,588       150,522,253  

QUALCOMM, Inc.

    43,893       7,431,085  

SOITEC(b)

    28,320       2,924,466  

Taiwan Semiconductor Manufacturing Co. Ltd., ADR

    88,978       12,105,457  

Wolfspeed, Inc.(a)(b)

    155,035       4,573,532  
   

 

 

 
      381,328,096  
Software — 24.2%            

Adobe, Inc.(b)

    12,650       6,383,190  

Autodesk, Inc.(b)

    33,451       8,711,309  

Cadence Design Systems, Inc.(a)(b)

    122,787       38,221,137  

Constellation Software, Inc./Canada

    3,971       10,846,923  

Crowdstrike Holdings, Inc., Class A(b)

    41,679       13,361,871  

Databricks, Inc., (Acquired 07/24/20,
Cost: $960,476)(b)(c)(d)

    59,997       4,878,356  

Datadog., Inc., Class A(b)

    46,741       5,777,188  

DataRobot, Inc., (Acquired 03/01/21,
Cost: $583,275)(b)(c)(d)

    38,789       179,205  

Intuit, Inc.

    27,355       17,780,750  

Microsoft Corp.(a)(f)

    293,148       123,333,227  

Nutanix, Inc., Class A(b)

    90,421       5,580,784  

Oracle Corp.(a)

    105,656       13,271,450  

Palo Alto Networks, Inc.(b)

    18,270       5,191,055  

Salesforce, Inc.

    64,831       19,525,801  

ServiceNow, Inc.(b)

    20,645       15,739,748  

SiteMinder Ltd.(b)

    1,019,336       3,739,426  

Snorkel AI, Inc., (Acquired 06/30/21,
Cost: $997,636)(b)(c)(d)

    66,422       506,136  

Snyk Ltd., Ordinary Shares, (Acquired 09/02/21, Cost: $5,192,307)(b)(c)(d)

    361,972       3,576,283  

Teya Services Ltd., (Acquired 12/17/21,
Cost: $24,999,987)(b)(c)(d)

    12,871       5,835,711  

Xero Ltd.(b)

    76,718       6,661,379  
   

 

 

 
      309,100,929  
Specialty Retail — 0.0%            

AceVector Limited, Series I, (Acquired 08/31/18, Cost: $1,998,435)(b)(c)(d)

    168,640       83,509  
   

 

 

 
Technology Hardware, Storage & Peripherals — 7.4%  

Apple, Inc.(a)

    472,328       80,994,806  

Quanta Computer, Inc.

    681,000       5,963,496  

Western Digital Corp.(b)

    114,999       7,847,532  
   

 

 

 
      94,805,834  
   

 

 

 

Total Common Stocks — 84.5%
(Cost: $505,658,316)

      1,080,486,036  
   

 

 

 
    

Par

(000)

        

Convertible Notes

   
Financial Services — 0.0%            

Wyre, Inc., (Acquired: 12/14/21,
Cost: $8,000,000), 6.00%, 12/08/24(c)(d)

  $ 80       1  
   

 

 

 

Total Convertible Notes — 0.0%
(Cost: $8,000,000)

      1  
   

 

 

 
 

 

 

C O N S O L I D A T E D  S C H E D U L E  O F  I N V E S T M E N T S   1


Consolidated Schedule of Investments (unaudited) (continued)

March 31, 2024

  

BlackRock Science and Technology Trust (BST)

(Percentages shown are based on Net Assets)

 

Security   Shares     Value  

Preferred Securities

   
Preferred Stocks — 16.4%(b)(c)            
Chemicals — 0.6%            

Solugen, Inc., Series C, (Acquired 09/02/21,
Cost: $9,999,977)(d)

    269,284       7,405,310  
   

 

 

 
Consumer Staples Distribution & Retail — 1.2%  

Grubmarket, Inc., Series E, (Acquired 10/18/21, Cost: $6,999,994)(d)

    709,724        16,039,762  
   

 

 

 
Diversified Consumer Services(d) — 1.0%            

FlixMobility GmbH, Series F, (Acquired 07/26/19, Cost: $5,482,937)

    275       8,755,131  

Grammarly, Inc., Series 3, (Acquired 11/17/21, Cost: $6,249,992)

    238,441       3,853,207  

Think & Learn Private Ltd., Series F, (Acquired 09/30/20, Cost: $3,052,975)

    1,054        
   

 

 

 
      12,608,338  
Diversified Telecommunication Services — 0.3%  

Discord, Inc., Series I, (Acquired 09/13/21, Cost: $7,000,088)(d)

    12,713       3,756,564  
   

 

 

 
Financial Services(d)(g) — 1.0%            

Trumid Holdings LLC

   

Class J-A, (Acquired 07/24/20,
Cost: $2,499,716)

    5,038       2,872,920  

Class J-B, (Acquired 07/24/20,
Cost: $1,499,830)

    5,038       2,872,919  

Class L, (Acquired 09/15/21,
Cost: $9,999,695)

    11,420       6,512,255  
   

 

 

 
      12,258,094  
Interactive Media & Services(d) — 0.6%            

ByteDance Ltd., Series E-1, (Acquired 11/11/20, Cost: $2,857,834)

    24,110       3,857,600  

Patreon, Inc., Series D, (Acquired 07/14/21, Cost: $6,666,632)

    119,047       3,257,126  
   

 

 

 
      7,114,726  
IT Services(d) — 2.9%            

Deep Instinct Ltd., Series D-2, (Acquired 03/19/21, Cost: $2,999,391)

    493,493       2,329,287  

MNTN Digital, Inc., Series D, (Acquired 11/05/21, Cost: $24,999,980)

    1,088,598       14,663,415  

TRAX Ltd.

   

(Acquired 09/12/19, Cost: $4,000,013)

    106,667       2,835,209  

(Acquired 02/18/21, Cost: $1,999,989)

    38,361       1,019,635  

Voltron Data, Inc.

   

Series A, (Acquired 01/18/22,
Cost: $10,000,000)

    6,201,935       8,186,554  

Series SEED, (Acquired 07/14/21,
Cost: $5,000,000)

    9,090,909       8,545,454  
   

 

 

 
      37,579,554  
Professional Services — 0.3%            

Ant Group Co., Ltd., Series C

    1,703,548       4,395,154  
   

 

 

 
Semiconductors & Semiconductor Equipment — 2.9%  

PsiQuantum Corp.(d)

   

Series C, (Acquired 09/09/19,
Cost: $3,200,234)

    690,003       17,677,877  

Series D, (Acquired 05/21/21,
Cost: $5,000,025)

    190,650       5,694,716  

Rivos, Inc.

   

Series A1, (Acquired 12/03/21,
Cost: $7,203,709)(d)

    2,700,558       6,427,328  
Security   Shares     Value  
Semiconductors & Semiconductor Equipment (continued)  

Rivos, Inc. (continued)

   

Series A2

    2,464,862     $ 5,225,507  

Series A3

    1,027,026       2,177,295  
   

 

 

 
      37,202,723  
Software — 5.6%            

Bolt Financial, Inc., Series E, (Acquired 01/18/22, Cost: $29,999,955)(d)

    598,682       7,453,591  

Canva Common Stock

    9,375       9,999,948  

Databricks, Inc.(d)

   

Series F, (Acquired 10/22/19,
Cost: $3,999,999)

    279,405       22,718,421  

Series G, (Acquired 02/01/21,
Cost: $4,500,001)

    76,113       6,188,748  

DataRobot, Inc., Series F, (Acquired 10/27/20, Cost: $2,999,996)(d)

    228,276       1,310,304  

Prosimo, Inc., Series B, (Acquired 11/04/21, Cost: $4,999,998)(d)

    2,515,811       3,673,084  

SambaNova Systems, Inc., Series C, (Acquired 02/20/20, Cost: $9,972,125)(d)

    187,300       12,667,099  

Snorkel AI, Inc., Series C, (Acquired 06/30/21, Cost: $4,999,985)(d)

    332,896       2,536,667  

Snyk Ltd., Series F, (Acquired 09/02/21, Cost: $4,807,688)(d)

    337,018       3,329,738  

Unqork, Inc.(d)

   

Series B, (Acquired 09/19/19,
Cost: $3,198,416)

    281,080       1,633,075  

Series C, (Acquired 09/18/20,
Cost: $1,303,260)

    47,600       348,908  
   

 

 

 
      71,859,583  
   

 

 

 
      210,219,808  
   

 

 

 

Total Preferred Securities — 16.4%
(Cost: $220,787,239)

      210,219,808  
   

 

 

 

Warrants

   
Software — 0.0%            

Constellation Software, Inc., (Issued 08/29/23, 1 Share for 1 Warrant, Expires 03/31/40, Strike Price CAD 11.50)(b)(c)

    3,923        
   

 

 

 

Total Warrants — 0.0%
(Cost: $ — )

       
   

 

 

 

Total Long-Term Investments — 100.9%
(Cost: $734,445,555)

 

    1,290,705,845  
   

 

 

 

Short-Term Securities

   
Money Market Funds — 0.9%            

BlackRock Cash Funds: Institutional, SL Agency Shares, 5.50%(h)(i)(j)

    11,374,056       11,378,606  

BlackRock Liquidity Funds, T-Fund, Institutional Class, 5.19%(h)(i)

    464,243       464,243  
   

 

 

 

Total Short-Term Securities — 0.9%
(Cost: $11,843,986)

 

    11,842,849  
   

 

 

 

Total Investments Before Options Written — 101.8%
(Cost: $746,289,541)

 

    1,302,548,694  
   

 

 

 

Options Written — (0.9)%
(Premiums Received: $(14,389,111))

 

    (11,816,502
   

 

 

 

Total Investments, Net of Options Written — 100.9%
(Cost: $731,900,430)

 

    1,290,732,192  

Liabilities in Excess of Other Assets — (0.9)%

 

    (11,198,213
   

 

 

 

Net Assets — 100.0%

    $  1,279,533,979  
   

 

 

 
 

 

 

2  


Consolidated Schedule of Investments (unaudited) (continued)

March 31, 2024

  

BlackRock Science and Technology Trust (BST)

 

(a) 

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

(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 $229,318,427, representing 17.9% of its net assets as of period end, and an original cost of $279,825,622.

(e) 

All or a portion of this security is on loan.

(f) 

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

 

(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 purposes of this report, industry and sector sub-classifications may differ from those utilized by the Trust for compliance purposes.

Affiliates

Investments in issuers considered to be affiliate(s) of the Trust during the period ended March 31, 2024 for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

 

 

 
Affiliated Issuer   Value at
12/31/23
   

Purchases

at Cost

   

Proceeds

from Sales

   

Net
Realized

Gain (Loss)

   

Change in

Unrealized

Appreciation

(Depreciation)

   

Value at

03/31/24

    Shares
Held at
03/31/24
    Income    

Capital Gain

Distributions

from
Underlying

Funds

 

 

 

BlackRock Cash Funds: Institutional, SL Agency Shares

  $     $  11,379,744 (a)    $     $ (1   $ (1,137   $ 11,378,606       11,374,056     $     $  

BlackRock Liquidity Funds, T-Fund, Institutional Class

    365,499       98,744 (a)                        464,243       464,243       92,172        

SL Liquidity Series, LLC, Money Market Series(b)

    5,860,878             (5,861,147 )(a)      (226     495                   7,624 (c)       
       

 

 

   

 

 

   

 

 

     

 

 

   

 

 

 
        $ (227   $ (642   $  11,842,849       $  99,796     $  
       

 

 

   

 

 

   

 

 

     

 

 

   

 

 

 

 

  (a) 

Represents net amount purchased (sold).

 
  (b) 

As of period end, the entity is no longer held.

 
  (c) 

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

                    

Amazon.com, Inc.

     190        04/05/24        USD        180.00        USD        3,427      $ (44,080

Intuit, Inc.

     64        04/05/24        USD        680.00        USD        4,160        (5,760

MercadoLibre, Inc.

     16        04/05/24        USD        1,750.00        USD        2,419        (3,040

NVIDIA Corp.

     178        04/05/24        USD        860.00        USD        16,083        (872,200

Palo Alto Networks, Inc.

     84        04/05/24        USD        330.00        USD        2,387        (2,814

Qualcomm, Inc.

     88        04/05/24        USD        160.00        USD        1,490        (83,820

S&P Global, Inc.

     22        04/05/24        USD        440.00        USD        936        (1,320

ServiceNow, Inc.

     27        04/05/24        USD        765.00        USD        2,058        (28,215

Shopify, Inc., Class A

     183        04/05/24        USD        85.00        USD        1,412        (2,013

Take-Two Interactive Software, Inc.

     97        04/05/24        USD        155.00        USD        1,440        (1,795

Tesla, Inc.

     104        04/05/24        USD        215.00        USD        1,828        (624

Western Digital Corp.

     129        04/05/24        USD        60.00        USD        880         (102,232

Accenture PLC, Class A

     35        04/12/24        USD        385.00        USD        1,213        (2,625

Arista Networks, Inc.

     110        04/12/24        USD        295.00        USD        3,190        (61,050

Autodesk, Inc.

     65        04/12/24        USD        265.00        USD        1,693        (18,038

Broadcom, Inc.

     40        04/12/24        USD        1,360.00        USD        5,302        (79,000

Crowdstrike Holdings, Inc., Class A

     81        04/12/24        USD        350.00        USD        2,597        (11,340

Datadog Inc., Class A

     27        04/12/24        USD        136.00        USD        334        (999

Lam Research Corp.

     45        04/12/24        USD        950.00        USD        4,372        (163,012

Mastercard, Inc., Class A

     89        04/12/24        USD        475.00        USD        4,286        (87,665

NVIDIA Corp.

     232        04/12/24        USD        900.00        USD        20,963        (748,780

ServiceNow, Inc.

     21        04/12/24        USD        785.00        USD        1,601        (17,430

Spotify Technology SA

     162        04/12/24        USD        280.00        USD        4,275        (30,132

Tesla, Inc.

     41        04/12/24        USD        200.00        USD        721        (3,834
                    

 

 

C O N S O L I D A T E D  S C H E D U L E  O F  I N V E S T M E N T S   3


Consolidated Schedule of Investments (unaudited) (continued)

March 31, 2024

  

BlackRock Science and Technology Trust (BST)

 

Exchange-Traded Options Written (continued)

 

 
Description    Number of
Contracts
     Expiration
Date
     Exercise Price     

Notional

Amount (000)

     Value  

 

 

Call (continued)

                    

Visa, Inc., Class A

     54        04/12/24        USD        285.00        USD        1,507      $ (6,075

Wolfspeed, Inc.

     93        04/12/24        USD        31.00        USD        274        (10,463

Adobe, Inc.

     38        04/19/24        USD        575.00        USD        1,917        (1,881

Adobe, Inc.

     19        04/19/24        USD        530.00        USD        959        (7,838

Alphabet, Inc., Class A

     252        04/19/24        USD        150.00        USD        3,803         (100,800

Amazon.com, Inc.

     136        04/19/24        USD        170.00        USD        2,453        (157,420

Amazon.com, Inc.

     146        04/19/24        USD        182.50        USD        2,634        (45,260

ARM Holdings PLC, ADR

     250        04/19/24        USD        130.00        USD        3,125        (135,000

Broadcom, Inc.

     20        04/19/24        USD        1,400.00        USD        2,651        (31,500

Cadence Design Systems, Inc.

     252        04/19/24        USD        320.00        USD        7,844        (122,220

Credo Technology Group Holding Ltd.

     1,960        04/19/24        USD        22.55        USD        4,153        (117,120

Crowdstrike Holdings, Inc., Class A

     106        04/19/24        USD        340.00        USD        3,398        (48,760

Equifax, Inc.

     46        04/19/24        USD        260.00        USD        1,231        (57,730

Intuit, Inc.

     58        04/19/24        USD        670.00        USD        3,770        (43,210

Marvell Technology, Inc.

     169        04/19/24        USD        72.50        USD        1,198        (45,038

Mastercard, Inc., Class A

     86        04/19/24        USD        480.00        USD        4,142        (72,885

MercadoLibre, Inc.

     15        04/19/24        USD        1,670.00        USD        2,268        (6,150

Meta Platforms, Inc., Class A

     78        04/19/24        USD        475.00        USD        3,788        (155,805

MongoDB, Inc., Class A

     67        04/19/24        USD        410.00        USD        2,403        (11,022

Monolithic Power Systems, Inc.

     15        04/19/24        USD        740.00        USD        1,016        (12,750

Nutanix, Inc., Class A

     99        04/19/24        USD        65.00        USD        611        (10,643

NVIDIA Corp.

     232        04/19/24        USD        900.00        USD        20,963        (952,940

Oracle Corp.

     112        04/19/24        USD        130.00        USD        1,407        (8,176

Palo Alto Networks, Inc.

     36        04/19/24        USD        310.00        USD        1,023        (5,940

Qualcomm, Inc.

     85        04/19/24        USD        160.00        USD        1,439        (91,375

S&P Global, Inc.

     14        04/19/24        USD        440.00        USD        596        (3,115

Salesforce, Inc.

     90        04/19/24        USD        320.00        USD        2,711        (12,870

ServiceNow, Inc.

     44        04/19/24        USD        770.00        USD        3,355        (82,500

Taiwan Semiconductor Manufacturing Co. Ltd., ADR

     44        04/19/24        USD        115.00        USD        599        (95,920

Take-Two Interactive Software, Inc.

     11        04/19/24        USD        150.00        USD        163        (3,190

Tesla, Inc.

     52        04/19/24        USD        205.00        USD        914        (10,062

Uber Technologies, Inc.

     479        04/19/24        USD        72.50        USD        3,688        (259,857

Visa, Inc., Class A

     76        04/19/24        USD        280.00        USD        2,121        (28,880

Visa, Inc., Class A

     8        04/19/24        USD        292.50        USD        223        (340

Wolfspeed, Inc.

     591        04/19/24        USD        30.00        USD        1,743        (113,767

Accenture PLC, Class A

     27        04/26/24        USD        390.00        USD        936        (1,485

Advanced Micro Devices, Inc.

     240        04/26/24        USD        222.50        USD        4,332        (17,160

Advanced Micro Devices, Inc.

     195        04/26/24        USD        187.50        USD        3,520        (119,437

Amazon.com, Inc.

     55        04/26/24        USD        190.00        USD        992        (18,425

Arista Networks, Inc.

     43        04/26/24        USD        280.00        USD        1,247        (78,045

Autodesk, Inc.

     85        04/26/24        USD        265.00        USD        2,214        (45,900

Datadog Inc., Class A

     183        04/26/24        USD        130.00        USD        2,262        (54,442

Meta Platforms, Inc., Class A

     119        04/26/24        USD        545.00        USD        5,778        (95,497

Meta Platforms, Inc., Class A

     55        04/26/24        USD        520.00        USD        2,671        (76,450

Micron Technology, Inc.

     131        04/26/24        USD        99.00        USD        1,544        (253,157

MongoDB, Inc., Class A

     17        04/26/24        USD        440.00        USD        610        (1,496

NVIDIA Corp.

     107        04/26/24        USD        920.00        USD        9,668        (419,172

Oracle Corp.

     363        04/26/24        USD        131.00        USD        4,560        (32,489

Salesforce, Inc.

     55        04/26/24        USD        310.00        USD        1,656        (24,750

Shopify, Inc., Class A

     230        04/26/24        USD        82.00        USD        1,775        (43,125

Spotify Technology SA

     51        04/26/24        USD        280.00        USD        1,346        (51,000

Taiwan Semiconductor Manufacturing Co. Ltd., ADR

     40        04/26/24        USD        152.50        USD        544        (6,580

Take-Two Interactive Software, Inc.

     90        04/26/24        USD        150.00        USD        1,336        (32,175

Tesla, Inc.

     109        04/26/24        USD        195.00        USD        1,916        (52,047

Uber Technologies, Inc.

     227        04/26/24        USD        80.00        USD        1,748        (38,931

Visa, Inc., Class A

     120        04/26/24        USD        280.00        USD        3,349        (72,900

Amazon.com, Inc.

     249        05/03/24        USD        190.00        USD        4,491        (112,050

Broadcom, Inc.

     20        05/03/24        USD        1,320.00        USD        2,651        (117,800

Lam Research Corp.

     39        05/03/24        USD        995.00        USD        3,789        (156,390

Marvell Technology, Inc.

     236        05/03/24        USD        72.00        USD        1,673        (87,320

Mastercard, Inc., Class A

     84        05/03/24        USD        485.00        USD        4,045        (100,170

Meta Platforms, Inc., Class A

     42        05/03/24        USD        560.00        USD        2,039        (32,130

 

 

4  


Consolidated Schedule of Investments (unaudited) (continued)

March 31, 2024

  

BlackRock Science and Technology Trust (BST)

 

Exchange-Traded Options Written (continued)

 

 
Description    Number of
Contracts
     Expiration
Date
     Exercise Price     

Notional

Amount (000)

     Value  

 

 

Call (continued)

                    

Micron Technology, Inc.

     333        05/03/24        USD        119.00        USD        3,926      $ (178,987

MongoDB, Inc., Class A

     35        05/03/24        USD        390.00        USD        1,255        (28,263

Spotify Technology SA

     105        05/03/24        USD        285.00        USD        2,771        (96,600

Taiwan Semiconductor Manufacturing Co. Ltd., ADR

     138        05/03/24        USD        140.00        USD        1,877        (73,485

Tesla, Inc.

     118        05/03/24        USD        190.00        USD        2,074        (85,550

Uber Technologies, Inc.

     466        05/03/24        USD        82.00        USD        3,588        (87,375

Visa, Inc., Class A

     55        05/03/24        USD        290.00        USD        1,535        (18,480

Western Digital Corp.

     388        05/03/24        USD        65.00        USD        2,648        (197,880

Wolfspeed, Inc.

     13        05/03/24        USD        34.00        USD        38        (2,763

Advanced Micro Devices, Inc.

     160        05/10/24        USD        195.00        USD        2,888        (107,200

Salesforce, Inc.

     91        05/10/24        USD        310.00        USD        2,741        (60,515

Advanced Micro Devices, Inc.

     29        05/17/24        USD        185.00        USD        523        (34,438

Alphabet, Inc., Class A

     129        05/17/24        USD        155.00        USD        1,947        (71,272

ARM Holdings PLC, ADR

     276        05/17/24        USD        135.00        USD        3,450        (271,170

Cadence Design Systems, Inc.

     300        05/17/24        USD        325.00        USD        9,338        (283,500

Credo Technology Group Holding Ltd.

     152        05/17/24        USD        22.50        USD        322        (17,480

Credo Technology Group Holding Ltd.

     931        05/17/24        USD        25.00        USD        1,973        (30,258

Equifax, Inc.

     65        05/17/24        USD        260.00        USD        1,739        (113,425

Marvell Technology, Inc.

     185        05/17/24        USD        85.00        USD        1,311        (18,963

MercadoLibre, Inc.

     20        05/17/24        USD        1,600.00        USD        3,024        (110,900

Meta Platforms, Inc., Class A

     39        05/17/24        USD        500.00        USD        1,894        (103,155

Micron Technology, Inc.

     254        05/17/24        USD        95.00        USD        2,994        (603,250

Micron Technology, Inc.

     258        05/17/24        USD        115.00        USD        3,042        (216,720

MongoDB, Inc., Class A

     47        05/17/24        USD        390.00        USD        1,686        (57,105

Motorola Solutions, Inc.

     68        05/17/24        USD        343.00        USD        2,414        (133,230

Nutanix, Inc., Class A

     207        05/17/24        USD        67.50        USD        1,278        (32,085

Palo Alto Networks, Inc.

     10        05/17/24        USD        310.00        USD        284        (6,275

Salesforce, Inc.

     55        05/17/24        USD        310.00        USD        1,656        (43,037

Micron Technology, Inc.

     38        06/21/24        USD        120.00        USD        448        (32,395
                    

 

 

 
                     $  (10,496,599
                    

 

 

 

OTC Options Written

 

 

 
Description    Counterparty      Number of
Contracts
      

Expiration

Date

       Exercise Price       

Notional

Amount (000)

       Value  

 

 

Call

                               

SiteMinder Ltd.

   Morgan Stanley & Co. International PLC        22,000          04/02/24          AUD       5.57          AUD       124        $ (1,484

SiteMinder Ltd.

   UBS AG        45,400          04/02/24          AUD       5.92          AUD       256          (103

Wise PLC, Class A

   UBS AG        18,500          04/02/24          GBP       8.57          GBP       171          (17,100

SiteMinder Ltd.

   JPMorgan Chase Bank N.A.        31,000          04/03/24          AUD       5.61          AUD       175          (1,696

SOITEC

   Morgan Stanley & Co. International PLC        5,700          04/03/24          EUR       147.44          EUR       546           

Wise PLC, Class A

   Goldman Sachs International        35,000          04/03/24          GBP       8.56          GBP       324          (32,976

Quanta Computer, Inc.

   JPMorgan Chase Bank N.A.        328,000          04/09/24          TWD       257.58          TWD       91,923           (234,973

SiteMinder Ltd.

   UBS AG        25,700          04/09/24          AUD       5.54          AUD       145          (2,680

SOITEC

   UBS AG        900          04/09/24          EUR       147.68          EUR       86           

Nintendo Co., Ltd.

   Citibank N.A.        7,200          04/16/24          JPY       8,720.70          JPY       59,472          (3,078

SiteMinder Ltd.

   UBS AG        25,700          04/16/24          AUD       5.54          AUD       145          (3,147

SiteMinder Ltd.

   UBS AG        25,700          04/23/24          AUD       5.54          AUD       145          (3,545

SOITEC

   UBS AG        5,000          04/23/24          EUR       138.60          EUR       479          (75

SiteMinder Ltd.

   Bank of America N.A.        53,600          04/24/24          AUD       5.90          AUD       302          (2,277

SOITEC

   Goldman Sachs International        4,400          04/24/24          EUR       136.99          EUR       421          (74

Wise PLC, Class A

   UBS AG        37,550          04/24/24          GBP       9.30          GBP       348          (20,636

ASM International NV

   Morgan Stanley & Co. International PLC        5,600          04/25/24          EUR       585.90          EUR       3,179          (88,420

Wise PLC, Class A

   Goldman Sachs International        35,000          04/25/24          GBP       8.93          GBP       324          (28,628

ASML Holding NV

   Morgan Stanley & Co. International PLC        16,500          04/30/24          EUR       927.41          EUR       14,827          (422,698

Nintendo Co., Ltd.

   UBS AG        55,200          04/30/24          JPY       8,417.71          JPY       455,952          (71,760

SiteMinder Ltd.

   Goldman Sachs International        31,000          04/30/24          AUD       5.48          AUD       175          (5,421

SiteMinder Ltd.

   UBS AG        22,000          04/30/24          AUD       5.54          AUD       124          (3,352

SOITEC

   Morgan Stanley & Co. International PLC        5,400          04/30/24          EUR       147.26          EUR       517          (71

Xero Ltd.

   UBS AG        20,300          04/30/24          AUD       142.15          AUD       2,705          (24,326

 

 

C O N S O L I D A T E D  S C H E D U L E  O F  I N V E S T M E N T S   5


Consolidated Schedule of Investments (unaudited) (continued)

March 31, 2024

  

BlackRock Science and Technology Trust (BST)

 

OTC Options Written (continued)

 

 
Description    Counterparty      Number of
Contracts
      

Expiration

Date

       Exercise Price       

Notional

Amount (000)

       Value  

 

 

Call (continued)

                               

Nutanix, Inc., Class A

   Bank of America N.A.        10,000          05/01/24          USD       60.48          USD       617        $ (37,529

ASM International NV

   Bank of America N.A.        5,600          05/02/24          EUR       580.61          EUR       3,179          (123,218

Wise PLC, Class A

   UBS AG        37,550          05/02/24          GBP       9.54          GBP       348          (17,754

SiteMinder Ltd.

   JPMorgan Chase Bank N.A.        26,000          05/07/24          AUD       5.33          AUD       146          (6,617

SiteMinder Ltd.

   JPMorgan Chase Bank N.A.        22,000          05/07/24          AUD       5.34          AUD       124          (5,495

SOITEC

   Goldman Sachs International        600          05/07/24          EUR       146.48          EUR       57          (10

SOITEC

   Morgan Stanley & Co. International PLC        400          05/07/24          EUR       138.74          EUR       38          (13

Xero Ltd.

   JPMorgan Chase Bank N.A.        14,600          05/07/24          AUD       133.35          AUD       1,945          (52,603

SiteMinder Ltd.

   UBS AG        53,600          05/10/24          AUD       5.89          AUD       302          (3,699

SiteMinder Ltd.

   JPMorgan Chase Bank N.A.        22,000          05/14/24          AUD       5.69          AUD       124          (2,777

RELX PLC

   Goldman Sachs International        110,400          05/16/24          GBP       34.74          GBP       3,772          (67,298

SiteMinder Ltd.

   UBS AG        22,000          05/21/24          AUD       5.85          AUD       124          (2,074

Wise PLC, Class A

   Bank of America N.A.        61,100          05/21/24          GBP       9.75          GBP       566          (27,454

SiteMinder Ltd.

   JPMorgan Chase Bank N.A.        53,000          05/28/24          AUD       5.85          AUD       298          (4,842
                               

 

 

 
                                $ (1,319,903
                               

 

 

 

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.

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

   $ 11,483,657        $        $        $ 11,483,657  

Broadline Retail

     48,266,683                            48,266,683  

Capital Markets

     6,111,589                            6,111,589  

Communications Equipment

     15,115,510                   2,999,223          18,114,733  

Diversified Consumer Services

                       11,559,620          11,559,620  

Entertainment

     19,464,994          7,562,655                   27,027,649  

Financial Services

     47,025,829          5,835,304                   52,861,133  

Ground Transportation

     13,890,228                            13,890,228  

Interactive Media & Services

     48,593,176                   1,628,577          50,221,753  

IT Services

     25,028,214                   13,383,276          38,411,490  

Professional Services

     6,636,369          10,582,764                   17,219,133  

Semiconductors & Semiconductor Equipment

     328,165,881          53,162,215                   381,328,096  

 

 

6  


Consolidated Schedule of Investments (unaudited) (continued)

March 31, 2024

  

BlackRock Science and Technology Trust (BST)

 

Fair Value Hierarchy as of Period End (continued)

      Level 1        Level 2        Level 3        Total  

Common Stocks (continued)

                 

Software

   $ 283,724,433        $ 10,400,805        $ 14,975,691        $ 309,100,929  

Specialty Retail

                       83,509          83,509  

Technology Hardware, Storage & Peripherals

     88,842,338          5,963,496                   94,805,834  

Convertible Notes

                       1          1  

Preferred Securities

                 

Preferred Stocks

                       210,219,808          210,219,808  

Warrants

                                 

Short-Term Securities

                 

Money Market Funds

     11,842,849                            11,842,849  
  

 

 

      

 

 

      

 

 

      

 

 

 
   $  954,191,750        $  93,507,239        $  254,849,705        $  1,302,548,694  
  

 

 

      

 

 

      

 

 

      

 

 

 

Derivative Financial Instruments(a)

                 

Liabilities

                 

Equity Contracts

   $ (10,246,249      $ (1,570,253      $        $ (11,816,502
  

 

 

      

 

 

      

 

 

      

 

 

 

 

  (a)

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      Convertible      Preferred                
     Stocks      Notes      Stocks      Warrants      Total  

 

 

Assets

              

Opening balance, as of December 31, 2023

   $ 46,135,347      $ 1      $ 212,114,583      $ (c)     $ 258,249,931  

Transfers into Level 3

                                  

Transfers out of Level 3

                                  

Other3(a)

     (4,480,331             4,480,331                

Accrued discounts/premiums

                                  

Net realized gain (loss)

                   1,473,842               1,473,842  

Net change in unrealized appreciation (depreciation)(b)

     (25,114             (9,582,142             (9,607,256

Purchases

     2,999,994               10,215,948               13,215,942  

Sales

                   (8,482,754             (8,482,754
  

 

 

    

 

 

    

 

 

    

 

 

    

 

 

 

Closing balance, as of March 31, 2024

   $  44,629,896      $ 1      $  210,219,808      $ (c)     $  254,849,705  
  

 

 

    

 

 

    

 

 

    

 

 

    

 

 

 

Net change in unrealized appreciation (depreciation) on investments still held at March 31, 2024(b)

   $ (25,114    $      $ (9,582,142    $  — (c)     $  (9,607,256
  

 

 

    

 

 

    

 

 

    

 

 

    

 

 

 

 

  (a) 

Certain Level 3 investments were re-classified between Common Stocks and Preferred Stocks.

 
  (b) 

Any difference between net change in unrealized appreciation (depreciation) and net change in unrealized appreciation (depreciation) on investments still held at March 31, 2024 is generally due to investments no longer held or categorized as Level 3 at period end.

 
  (c) 

Rounds to less than $1.

 

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. The table does not include Level 3 financial instruments with values based upon unadjusted third-party pricing information in the amount of $1. A significant change in third party information could result in a significantly lower or higher value of such Level 3 financial instruments.

 

           
      Value      Valuation
Approach
    

Unobservable

Inputs

  

Range of 

Unobservable 

Inputs 

Utilized(a)

  

Weighted

Average of
Unobservable

Inputs Based

on Fair Value

 

Assets

              

Common Stocks

   $ 44,629,896        Market      Revenue Multiple    2.00x - 22.00x       10.58x  
         Volatility    70% - 80%       79  
         Time to Exit    3.0 - 3.0 years       3.0 years  
         Gross Profit Multiple    15.75x        
         Terminal Growth Rate    5%        
        Income      Discount    12%        

Preferred Stock (b)

     210,219,808        Market      Revenue Multiple    1.69x - 22.00x       12.94x  
         Volatility    50% - 80%       66%  
         Time to Exit    0.5 - 5.0 years       3.9 years  

 

 

C O N S O L I D A T E D  S C H E D U L E  O F  I N V E S T M E N T S   7


Consolidated Schedule of Investments (unaudited) (continued)

March 31, 2024

   BlackRock Science and Technology Trust (BST)  

 

      Value      Valuation
Approach
    

Unobservable

Inputs

    

Range of 

Unobservable 

Inputs 

Utilized(a)

  

Weighted

Average of

Unobservable

Inputs Based

on Fair Value

 
        

Market Adjustment Multiple

Gross Profit Multiple

    

1.10x-1.30x 

6.75x 

    
1.26x
 
 
                
  

 

 

               
   $  254,849,704                
  

 

 

               

 

  (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, 2024, 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.

 

 

Currency Abbreviation
AUD    Australian Dollar
EUR    Euro
GBP    British Pound
JPY    Japanese Yen
TWD    New Taiwan Dollar
USD    United States Dollar
Portfolio Abbreviation
ADR    American Depositary Receipt
S&P    Standard & Poor’s

 

 

 

8  

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