Ticker · CUSIP 12448X201
Holders (tracked)
7
Combined shares
1,113,923
Combined value
$18.70M
Last close
$6.66
Quarter
2025Q4
Price · 1Y$6.66-15.12 (-69.42%)H $33.56 · L $5.68 · Avg Vol 532K
Position opened
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
Price is -60.3% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
15 events
- Ganz Bryan · See Remarks2026-04-15Bought $9.8K @ $6.56Insider buy
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−163,376 shares · 2025Q4Position
- D.E. Shaw & Co. exited2026-02-17−60,000 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+220,130 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+1,660 shares · 2025Q4Position
- AQR Capital Management trimmed2026-02-17−1,319 shares · 2025Q4Position
- Lee Ainslie (Maverick Capital) trimmed2026-02-13−96,503 shares · 2025Q4Position
- Renaissance Technologies opened position2026-02-12+64,100 shares · 2025Q4Position
- AQR Capital Management trimmed2025-11-14−4,505 shares · 2025Q3Position
- Steve Cohen (Point72) exited2025-11-14−16,532 shares · 2025Q3Position
- Two Sigma Investments exited2025-11-14−21,586 shares · 2025Q3Position
- D.E. Shaw & Co. exited2025-11-14−112,686 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+467,932 shares · 2025Q3Position
- Lee Ainslie (Maverick Capital) trimmed2025-11-14−3,576 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+587 shares · 2025Q3Position
Insider activity
Last 30 days
Net (open-market)
$9.8K
Buys
1 · $9.8K
Sells
0 · $0
Unique insiders
1
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-15 | Ganz Bryan See Remarks · Insider | P | 1,500 | $6.56 | $9.8K |
Follow-the-investor returns
If you'd copied each holder of BYRN…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Renaissance Technologies | 2023Q2 | $11.82 | -43.7% | $427K |
| AQR Capital Management | 2024Q3 | $16.97 | -60.8% | $161K |
| Ken Griffin (Citadel Advisors) | 2021Q4 | $18.28 | -63.6% | $592K |
| Ken Griffin (Citadel Advisors) | 2021Q4 | $18.28 | -63.6% | $592K |
| Izzy Englander (Millennium Mgmt) | 2022Q2 | $19.32 | -65.5% | $5.9M |
| T. Rowe Price | 2024Q4 | $27.11 | -75.4% | $75K |
| Lee Ainslie (Maverick Capital) | 2025Q2 | $30.88 | -78.4% | $78K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions1
- Renaissance Technologies+64,100$1.1M
Added to2
- Izzy Englander (Millennium Mgmt)+220,130$3.7M
- T. Rowe Price+1,660$28
Trimmed3
- Ken Griffin (Citadel Advisors)−163,376$2.7M
- Lee Ainslie (Maverick Capital)−96,503$1.6M
- AQR Capital Management−1,319$22K
Exited1
- D.E. Shaw & Co.−60,000$1.3M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 2 | $9.9M |
| 2022Q2 | 3 | $5.1M |
| 2022Q3 | 4 | $2.1M |
| 2022Q4 | 5 | $3.1M |
| 2023Q1 | 6 | $3.7M |
| 2023Q2 | 6 | $2.5M |
| 2023Q3 | 2 | $674K |
| 2023Q4 | 3 | $2.0M |
| 2024Q1 | 5 | $8.3M |
| 2024Q2 | 7 | $16.5M |
| 2024Q3 | 7 | $12.9M |
| 2024Q4 | 9 | $16.2M |
| 2025Q1 | 10 | $13.8M |
| 2025Q2 | 10 | $20.8M |
| 2025Q3 | 8 | $26.6M |
| 2025Q4 | 7 | $18.7M |
Who owns BYRN
7 super-investors · 2025Q4
Tracked stake
1.11M
shares
Combined value
$19M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added2Trim4
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Izzy Englander Millennium Mgmt | 893.3K | $15M |
| 2 | Ken Griffin Citadel Advisors | 88.8K | $1M |
| 3 | Renaissance Technologies | 64.1K | $1M |
| 4 | AQR Capital Management | 24.2K | $407K |
| 5 | Ken Griffin Citadel Advisors | 20.5K | $344K |
| 6 | Lee Ainslie Maverick Capital | 11.7K | $197K |
| 7 | T. Rowe Price | 11.3K | $190K |
Recent moves
20 transactions
- +220,130 · 2025Q4
- −1,319 · 2025Q4
- −163,376 · 2025Q4
- SOLDD.E. Shaw & Co.−60,000 · 2025Q4
- +1,660 · 2025Q4
- −96,503 · 2025Q4
- +64,100 · 2025Q4
- +587 · 2025Q3
- +467,932 · 2025Q3
- −16,532 · 2025Q3
- −3,576 · 2025Q3
- SOLDD.E. Shaw & Co.−112,686 · 2025Q3
- −4,505 · 2025Q3
- −21,586 · 2025Q3
- +4,879 · 2025Q2
- +111,794 · 2025Q2
- +9,057 · 2025Q2
- −121,464 · 2025Q2
- +16,532 · 2025Q2
- +53 · 2025Q2
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