BSTZ · Insider trading · 13F holders · Congress trades
BlackRock Science and Technology Trust II (BSTZ)
Who is buying and selling BSTZ: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 13
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 6
BSTZ at a glance
- No open-market insider purchases or sales of BSTZ were filed in the last 90 days.
- 13 13F filers hold BSTZ among their 50 largest positions, worth $286.0M combined, including Boaz Weinstein. The biggest bets by portfolio weight are Boaz Weinstein (5.2%), Potrero Capital Research LLC (3.1%) and Intrepid Family Office LLC (2.2%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
- Members of Congress have disclosed 6 BSTZ trades since 2019, 4 purchases and 2 sales in the past year; the latest was Thomas R. Carper (D-DE), buying $1K–15K on Jun 26, 2019.
- BSTZ last closed at $27.26 on Oct 30, 2026.
BSTZ insider trading
No open-market insider purchases or sales of BSTZ were filed in the last 90 days.
Who owns BSTZ? Hedge funds and superinvestors
13 13F filers hold BSTZ among their 50 largest positions, worth $286.0M combined, including Boaz Weinstein. The biggest bets by portfolio weight are Boaz Weinstein (5.2%), Potrero Capital Research LLC (3.1%) and Intrepid Family Office LLC (2.2%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
Superinvestors holding BSTZ: Boaz Weinstein 5.2%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Boaz WeinsteinHedge fund | 5.2% | $171.1M | 5,696,873 | +3.0% shares | Q2 2026 |
| Rivernorth Capital Management, LLCMutual fund manager | 2.2% | $45.4M | 1,511,481 | +1.2% shares | Q2 2026 |
| Wedbush Securities IncWealth manager | 0.9% | $36.4M | 1,236,826 | +61.9% shares | Q3 2026 |
| Z3 Capital Partners, LLCWealth manager | 2.0% | $9.5M | 316,562 | +3.0% shares | Q2 2026 |
| Blue Bell Private Wealth Management, LLCWealth manager | 0.7% | $5.6M | 190,230 | -0.0% shares | Q3 2026 |
| Potrero Capital Research LLCHedge fund | 3.1% | $5.0M | 167,198 | New | Q2 2026 |
| Thomas J. Herzfeld Advisors, Inc.Hedge fund | 1.5% | $5.0M | 166,033 | +100.8% shares | Q2 2026 |
| Intrepid Family Office LLCFamily office | 2.2% | $2.4M | 80,000 | +0.0% shares | Q2 2026 |
| PMG Family Office LLCWealth manager | 1.6% | $1.7M | 58,427 | +1.1% shares | Q3 2026 |
| Noble Wealth Management PBCWealth manager | 0.7% | $1.4M | 48,250 | +0.5% shares | Q3 2026 |
| Anchor Capital Management Group IncHedge fund | 0.7% | $1.1M | 35,000 | +0.0% shares | Q2 2026 |
| Fund Advisors of America Inc/FLAsset manager | 0.8% | $848K | 28,232 | — | Q2 2026 |
| Quantedge Capital Pte LtdHedge fund | 0.4% | $571K | 19,000 | -53.2% shares | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 4, Q2 2026: 9). Screen BSTZ in the grand portfolio →
BSTZ stock trades by members of Congress
Members of Congress have disclosed 6 BSTZ trades since 2019, 4 purchases and 2 sales in the past year; the latest was Thomas R. Carper (D-DE), buying $1K–15K on Jun 26, 2019.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| May 25, 2020 | Thomas R. CarperD-DE · Senate | Buy | $1K–15K | Jun 26, 2019 | +35.2% |
| May 25, 2020 | Thomas R. CarperD-DE · Senate | Buy | $1K–15K | Jun 26, 2019 | +35.2% |
| Mar 3, 2020 | Thomas R. CarperD-DE · Senate | Sale | $1K–15K | Feb 22, 2020 | +26.6% |
| Mar 3, 2020 | Thomas R. CarperD-DE · Senate | Sale | $1K–15K | Feb 22, 2020 | +26.6% |
| Dec 12, 2019 | John HoevenR-ND · Senate | Buy | $100K–250K | Nov 19, 2019 | +36.0% |
| Jul 9, 2019 | John HoevenR-ND · Senate | Buy | $100K–250K | Jun 26, 2019 | +35.2% |
2 members have traded BSTZ: Thomas R. Carper, John Hoeven.
BSTZ questions and answers
Are insiders buying BSTZ stock?
No open-market insider purchases or sales of BSTZ were filed in the last 90 days.
Which hedge funds own BSTZ?
13 13F filers hold BSTZ among their 50 largest positions, worth $286.0M combined, including Boaz Weinstein. The biggest bets by portfolio weight are Boaz Weinstein (5.2%), Potrero Capital Research LLC (3.1%) and Intrepid Family Office LLC (2.2%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
Has Congress traded BSTZ?
Members of Congress have disclosed 6 BSTZ trades since 2019, 4 purchases and 2 sales in the past year; the latest was Thomas R. Carper (D-DE), buying $1K–15K on Jun 26, 2019.
Who is the largest holder of BSTZ?
Among 13F filers, Boaz Weinstein reports the largest BSTZ position, $171.1M (5,696,873 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Boaz Weinstein's: 5.2% of its portfolio.
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