Ticker · CUSIP 09260K101
Holders (tracked)
2
Combined shares
34,118
Combined value
$771.4K
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
SEC event timeline
3 events
- Ken Griffin (Citadel Advisors) added2026-02-17+6,893 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−1,611 shares · 2025Q413F
- AQR Capital Management trimmed2025-11-14−4,589 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions0
—
Added to1
- Ken Griffin (Citadel Advisors)+6,893$156K
Trimmed1
- AQR Capital Management−1,611$36K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2021Q1 | 1 | $178K |
| 2021Q2 | 1 | $209K |
| 2021Q3 | 1 | $193K |
| 2022Q1 | 1 | $147K |
| 2022Q2 | 1 | $98K |
| 2022Q3 | 1 | $88 |
| 2022Q4 | 2 | $329K |
| 2023Q1 | 1 | $139K |
| 2023Q2 | 1 | $91K |
| 2023Q3 | 1 | $83K |
| 2023Q4 | 2 | $286K |
| 2024Q1 | 2 | $309K |
| 2024Q2 | 1 | $100K |
| 2025Q2 | 1 | $451K |
| 2025Q3 | 2 | $639K |
| 2025Q4 | 2 | $771K |
Who owns BSTZ
2 super-investors · 2025Q4
Tracked stake
34.1K
shares
Combined value
$771K
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added1Trim1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Ken Griffin Citadel Advisors | 18.6K | $421K |
| 2 | AQR Capital Management | 15.5K | $351K |
Recent moves
11 transactions
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