Ticker · CUSIP 088786108
Holders (tracked)
9
Combined shares
2,608,455
Combined value
$10.18M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
SEC event timeline
12 events
- Ken Griffin (Citadel Advisors) added2026-02-17+82,356 shares · 2025Q413F
- D.E. Shaw & Co. opened position2026-02-17+21,548 shares · 2025Q413F
- Two Sigma Investments trimmed2026-02-17−52,505 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−728,120 shares · 2025Q413F
- Steve Cohen (Point72) trimmed2026-02-17−354,121 shares · 2025Q413F
- T. Rowe Price trimmed2026-02-17−213,007 shares · 2025Q413F
- Renaissance Technologies added2026-02-12+47,900 shares · 2025Q413F
- T. Rowe Price trimmed2025-11-14−83,599 shares · 2025Q313F
- Steve Cohen (Point72) trimmed2025-11-14−1,341,700 shares · 2025Q313F
- Two Sigma Investments added2025-11-14+128,339 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−388,873 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+200,300 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 positions1
- D.E. Shaw & Co.+21,548$153K
Added to2
- Ken Griffin (Citadel Advisors)+82,356$583K
- Renaissance Technologies+47,900$339K
Trimmed4
- Izzy Englander (Millennium Mgmt)−728,120$5.2M
- Steve Cohen (Point72)−354,121$2.5M
- Two Sigma Investments−52,505$372K
- T. Rowe Price−213,007$2K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 8 | $128.5M |
| 2022Q2 | 9 | $54.7M |
| 2022Q3 | 6 | $49K |
| 2022Q4 | 7 | $37.3M |
| 2023Q1 | 9 | $26.4M |
| 2023Q2 | 9 | $23.8M |
| 2023Q3 | 9 | $40.2M |
| 2023Q4 | 9 | $25.4M |
| 2024Q1 | 9 | $25.5M |
| 2024Q2 | 11 | $23.6M |
| 2024Q3 | 7 | $29.3M |
| 2024Q4 | 7 | $72.2M |
| 2025Q1 | 7 | $39.2M |
| 2025Q2 | 7 | $26.1M |
| 2025Q3 | 6 | $18.4M |
| 2025Q4 | 9 | $10.2M |
Who owns BCYC
9 super-investors · 2025Q4
Tracked stake
2.61M
shares
Combined value
$10M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added4Trim4
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 566.6K | $4M |
| 2 | Izzy Englander Millennium Mgmt | 326.6K | $2M |
| 3 | Ken Griffin Citadel Advisors | 271.4K | $2M |
| 4 | Two Sigma Investments | 132.0K | $935K |
| 5 | Steve Cohen Point72 | 76.8K | $544K |
| 6 | Ken Griffin Citadel Advisors | 28.3K | $200K |
| 7 | D.E. Shaw & Co. | 21.5K | $153K |
| 8 | Ken Griffin Citadel Advisors | 13.4K | $95K |
| 9 | T. Rowe Price | 1.17M | $8K |
Recent moves
20 transactions
- TRIMT. Rowe Price−213,007 · 2025Q4
- +21,548 · 2025Q4
- −728,120 · 2025Q4
- +82,356 · 2025Q4
- −52,505 · 2025Q4
- −354,121 · 2025Q4
- +47,900 · 2025Q4
- TRIMT. Rowe Price−83,599 · 2025Q3
- −388,873 · 2025Q3
- −1,341,700 · 2025Q3
- +128,339 · 2025Q3
- +200,300 · 2025Q3
- −1,919,469 · 2025Q2
- +990,191 · 2025Q2
- TRIMT. Rowe Price−68,191 · 2025Q2
- +56,198 · 2025Q2
- +16,900 · 2025Q2
- −862,831 · 2025Q1
- +276,671 · 2025Q1
- +32,000 · 2025Q1
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