Security key
09260K101
BlackRock Science & Technology Term Trust - Common Shares, $0.001 par value (BSTZ)
CUSIP: 09260K101
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Shares, $0.001 par value
- Total 13F shares
- 21,003,164
- Total 13F value
- $465,260,606
- Share change
- +422,255
- SEC-reported price per share
- $22.15
- Number of holders
- 131
- Value change
- +$8,590,015
- Number of buys
- 76
- Number of sells
- 39
- Shares outstanding
- 68,751,990
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
131
Top holders
10
BSTZ full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Previous quarter: Q4 2025
BlackRock Science & Technology Term Trust SEC filings
Broader feeds
Reporting periods
Holder history for CUSIP 09260K101
Recent filing periods:
Ownership snapshot
Top reported holders of BSTZ - BlackRock Science & Technology Term Trust - Common Shares, $0.001 par value (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Saba Capital Management, ...
Disclosed value leader
Saba Capital Management, ...
Comparable rows
15/15
Latest evidence
13 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 7.9%
13D/G row: Saba Capital Management, L.P.
Showing 1-6 of 15 holder rows.
Quick read
Saba Capital Management, L.P. leads the comparable SEC ownership view at 7.9%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Saba Capital Management, L.P.'s linked filing trail.
Comparable ownership
Top 5
Saba Capital Management, L.P.
7.9%
Stephen Thomas Minar
0.01%
MORGAN STANLEY
4.4%
RIVERNORTH CAPITAL MANAGEMENT, LLC
2.1%
UBS Group AG
1.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Saba Capital Management, L.P. |
13D/G
13F
Company
|
7.9%
|
$125,882,418
5,458,908 shares
|
+$17,901,893 | 13 Mar 2026 |
| Stephen Thomas Minar |
3/4/5
Vice President
|
0.01%
|
$186,837
8,074 shares
|
+$20,325 | 10 Feb 2026 |
| MORGAN STANLEY |
13F
Company
|
4.4%
|
$67,818,130
2,999,473 shares
|
— | 31 Dec 2025 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC |
13F
Company
|
2.1%
|
$32,966,104
1,458,032 shares
|
— | 31 Dec 2025 |
| UBS Group AG |
13F
Company
|
1.7%
|
$26,079,392
1,153,445 shares
|
— | 31 Dec 2025 |
| Penserra Capital Management LLC |
13F
Company
|
1.5%
|
$23,388,000
1,034,410 shares
|
— | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
131
Shares
21,003,164
Rows available
131
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
123
Q1 2026 holders
131
Holder diff
8
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend