BlackRock Science and Technology Trust
US ˙ NYSE ˙ US09258G1040

SecurityBST / BlackRock Science and Technology Trust
InstitutionClaro Advisors LLC
Latest Disclosed Ownership7,054 shares
Latest Disclosed Value $ 256,412
Claro Advisors LLC reports 0.44% decrease in ownership of BST / BlackRock Science and Technology Trust

On April 21, 2026 - Claro Advisors LLC filed a 13F-HR form disclosing ownership of 7,054 shares of BlackRock Science and Technology Trust (US:BST) valued at $256,413 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 7,085 shares of BlackRock Science and Technology Trust. This represents a change in shares of -0.44% during the quarter. The current value of the position is $346,281 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-21 2026-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 7,054 -31 -0.44 256 -10.80 0.0309
2026-02-17 2025-12-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 7,085 110 1.58 287 -0.35 0.0391
2025-11-12 2025-09-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 6,975 -1,619 -18.84 288 -12.20 0.0421
2025-08-05 2025-06-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 8,594 99 1.17 328 17.14 0.0542
2025-05-12 2025-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 8,495 -1,079 -11.27 280 -20.00 0.0375
2025-01-13 2024-12-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 9,574 -1,379 -12.59 350 -9.79 0.0473
2024-11-07 2024-09-30 13F/A-1 BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 10,953 -2,982 -21.40 388 -25.95 0.0502
2024-10-17 2024-09-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 154,416 140,481 7,639 0.9870
2024-07-31 2024-06-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 13,935 170 1.24 525 3.15 0.0819
2024-04-18 2024-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 13,765 -1,119 -7.52 508 1.60 0.0882
2024-01-22 2023-12-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 14,884 -2,952 -16.55 501 -10.71 0.1085
2023-10-10 2023-09-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 17,836 27 0.15 560 -8.65 0.1400
2023-08-08 2023-06-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 17,809 58 0.33 613 6.79 0.1524
2023-04-17 2023-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 17,751 -2,753 -13.43 574 -1.20 0.1686
2023-03-13 2022-12-31 13F/A-1 BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 20,504 489 2.44 582 -10.62 0.1903
2023-02-14 2022-12-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 20,504 489 582 0.1900
2022-11-18 2022-09-30 13F/A-1 BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 20,015 0 0.00 650 0.00 0.2584
2022-11-14 2022-09-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 20,015 0 650 0.2584
2022-08-12 2022-06-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 20,015 -480 -2.34 650 -36.52 0.2584
2022-05-16 2022-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 20,495 0 0.00 1,024 0.00 0.3684
2022-02-14 2021-12-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 20,495 5,639 37.96 1,024 32.13 0.3684
2021-11-15 2021-09-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 14,856 4,186 39.23 775 21.86 0.3259
2021-08-13 2021-06-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 10,670 -678 -5.97 636 3.58 0.2862
2021-08-13 2021-06-30 13F BLACKROCK SCIENCE & TECHNOLO RIGHT 07/14/2021 09258G112 10,670 -678 7 0.0032
2021-05-17 2021-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 11,348 -595 -4.98 614 -3.61 0.3110
2021-02-12 2020-12-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 11,943 445 3.87 637 28.69 0.3386
2020-11-16 2020-09-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 11,498 11 0.10 495 14.06 0.3137
2020-08-14 2020-06-30 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 11,487 1,166 11.30 434 46.62 0.2987
2020-05-15 2020-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS 09258G104 10,321 10,321 296 0.2759
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.