BlackRock Science and Technology Term Trust
US ˙ NYSE ˙ US09260K1016

SecurityBSTZ / BlackRock Science and Technology Term Trust
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership140,056 shares
Latest Disclosed Value $ 3,102,470
Advisor Group Holdings, Inc. reports 5.92% decrease in ownership of BSTZ / BlackRock Science and Technology Term Trust

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 140,056 shares of BlackRock Science and Technology Term Trust (US:BSTZ) valued at $3,102,240 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 148,864 shares of BlackRock Science and Technology Term Trust. This represents a change in shares of -5.92% during the quarter. The current value of the position is $4,068,627 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)
2026-05-15 2026-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 140,056 -8,808 -5.92 3,102 -7.84 0.0026
2026-02-17 2025-12-31 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 148,864 34,016 29.62 3,366 32.57 0.0049
2025-11-14 2025-09-30 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 114,848 13,581 13.41 2,540 20.85 0.0036
2025-09-04 2025-06-30 13F/A-1 BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 101,267 13,486 15.36 2,102 34.94 0.0037
2025-08-13 2025-06-30 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 80,272 -7,509 1,663 0.0019
2025-05-12 2025-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 87,781 -99 -0.11 1,557 -14.45 0.0035
2025-06-06 2024-12-31 13F/A-1 BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 87,880 758 0.87 1,820 8.85 0.0041
2025-02-07 2024-12-31 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 82,377 -4,745 1,595 0.0041
2024-11-13 2024-09-30 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 87,122 35 0.04 1,673 -3.58 0.0038
2024-08-13 2024-06-30 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 87,087 -8,706 -9.09 1,734 -6.67 0.0041
2024-05-10 2024-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 95,793 -1,463 -1.50 1,859 14.34 0.0042
2024-02-12 2023-12-31 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 97,256 -51,065 -34.43 1,625 -33.59 0.0028
2023-11-13 2023-09-30 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 148,321 52,664 55.06 2,447 41.28 0.0036
2023-08-21 2023-06-30 13F/A-1 BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 95,657 6,909 7.78 1,733 4.53 0.0031
2023-08-10 2023-06-30 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 95,657 6,909 1,733 0.0005
2023-05-12 2023-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 88,748 12,446 16.31 1,658 38.78 0.0031
2023-02-10 2022-12-31 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 76,302 16,849 28.34 1,194 13.82 0.0024
2022-11-14 2022-09-30 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 59,453 12,992 27.96 1,049 15.02 0.0024
2022-08-10 2022-06-30 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 46,461 11,950 34.63 912 -78.23 0.0020
2022-05-04 2022-03-31 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 34,511 7,590 28.19 4,189 299.71 0.0081
2022-02-03 2021-12-31 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 26,921 2,157 8.71 1,048 9.39 0.0020
2021-11-05 2021-09-30 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 24,764 373 1.53 958 -5.80 0.0020
2021-08-02 2021-06-30 13F BLACKROCK SCIENCE & TECHNOLO SHS BEN INT 09260K101 24,391 4,835 24.72 1,017 44.87 0.0022
2021-05-13 2021-03-31 13F BLACKROCK SCIENCE & TECH TR SHS BEN INT 09260K101 19,556 99 0.51 702 -0.85 0.0017
2021-02-10 2020-12-31 13F BLACKROCK SCIENCE & TECH TR SHS BEN INT 09260K101 19,457 -7,357 -27.44 708 3.81 0.0019
2020-11-12 2020-09-30 13F BLACKROCK SCIENCE & TECH TR SHS BEN INT 09260K101 26,814 -80,512 -75.02 682 -71.99 0.0020
2020-08-14 2020-06-30 13F BLACKROCK SCIENCE & TECH TR SHS BEN INT 09260K101 107,326 69,760 185.70 2,435 287.74 0.0082
2020-05-18 2020-03-31 13F BLACKROCK SCIENCE & TECH TR SHS BEN INT 09260K101 37,566 37,566 628 0.0026
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.