Ticker · CUSIP 10949T109
Holders (tracked)
7
Combined shares
2,781,108
Combined value
$14.68M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
SEC event timeline
14 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−248,221 shares · 2025Q4Position
- D.E. Shaw & Co. exited2026-02-17−219,070 shares · 2025Q4Position
- Two Sigma Investments added2026-02-17+220,641 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+63,007 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+6,173 shares · 2025Q4Position
- AQR Capital Management trimmed2026-02-17−60,359 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−12,400 shares · 2025Q4Position
- AQR Capital Management added2025-11-14+288,697 shares · 2025Q3Position
- Two Sigma Investments added2025-11-14+286,911 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+567,834 shares · 2025Q3Position
- D.E. Shaw & Co. added2025-11-14+965 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+2,606 shares · 2025Q3Position
- Renaissance Technologies added2025-11-13+17,900 shares · 2025Q3Position
- Norges Bank (Norway SWF) trimmed2025-11-12−789,000 shares · 2024Q3Position
Insider activity
Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
1
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-09 | Mazzei Michael CEO · Officer, Director | J | 10,143 | — | $0 |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to3
- Two Sigma Investments+220,641$1.2M
- Izzy Englander (Millennium Mgmt)+63,007$353K
- T. Rowe Price+6,173$35
Trimmed3
- Ken Griffin (Citadel Advisors)−248,221$1.4M
- AQR Capital Management−60,359$338K
- Renaissance Technologies−12,400$69K
Exited1
- D.E. Shaw & Co.−219,070$1.2M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 9 | $7.70B |
| 2022Q2 | 10 | $6.29B |
| 2022Q3 | 10 | $5.2M |
| 2022Q4 | 11 | $52.9M |
| 2023Q1 | 10 | $58.7M |
| 2023Q2 | 9 | $83.2M |
| 2023Q3 | 9 | $78.4M |
| 2023Q4 | 9 | $98.7M |
| 2024Q1 | 9 | $89.9M |
| 2024Q2 | 10 | $81.2M |
| 2024Q3 | 9 | $7.4M |
| 2024Q4 | 7 | $8.6M |
| 2025Q1 | 8 | $11.3M |
| 2025Q2 | 7 | $9.8M |
| 2025Q3 | 8 | $15.6M |
| 2025Q4 | 7 | $14.7M |
Who owns BRSP
7 super-investors · 2025Q4
Tracked stake
2.78M
shares
Combined value
$15M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added3Trim4
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Two Sigma Investments | 945.6K | $5M |
| 2 | Izzy Englander Millennium Mgmt | 654.4K | $4M |
| 3 | AQR Capital Management | 429.6K | $2M |
| 4 | Ken Griffin Citadel Advisors | 331.1K | $2M |
| 5 | Renaissance Technologies | 246.9K | $1M |
| 6 | Ken Griffin Citadel Advisors | 14.1K | $79K |
| 7 | T. Rowe Price | 159.4K | $893 |
Recent moves
20 transactions
- SOLDD.E. Shaw & Co.−219,070 · 2025Q4
- +63,007 · 2025Q4
- +6,173 · 2025Q4
- −248,221 · 2025Q4
- +220,641 · 2025Q4
- −60,359 · 2025Q4
- −12,400 · 2025Q4
- +567,834 · 2025Q3
- +288,697 · 2025Q3
- +286,911 · 2025Q3
- +965 · 2025Q3
- +2,606 · 2025Q3
- +17,900 · 2025Q3
- −789,000 · 2024Q3
- −122,586 · 2025Q2
- −223,539 · 2025Q2
- +218,105 · 2025Q2
- +6,915 · 2025Q2
- +177,717 · 2025Q2
- +11,500 · 2025Q2
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