Flagship Pioneering Special Opportunities Fund II General Partner LLC
CIK 0001826217
Director10% Owner
Filings
5
Latest Mar 2, 2026
Issuers covered
4
Showing
5 of 5
Page 1
Track record
3 of 5 open-market trades scored (60% price coverage) - 2 issuers without price data. Returns are signed: a +10% move on a sale shows as -10% (insider was wrong).
| Horizon | Trades | Win rate | Avg | Median | Best | Worst |
|---|---|---|---|---|---|---|
| 30 days | 3 | 100% | +9.4% | +9.4% | +9.4% | +9.4% |
| 90 days | 3 | 100% | +9.2% | +9.2% | +9.2% | +9.2% |
| 180 days | - | - | - | - | - | - |
| 365 days | - | - | - | - | - | - |
Issuers
Companies where Flagship Pioneering Special Opportunities Fund II General Partner LLC has filed
| Ticker | Issuer | Filings | Last filed |
|---|---|---|---|
| FHTX | Foghorn Therapeutics Inc. | 2 | Jan 15, 2026 |
| GENB | Generate Biomedicines, Inc. | 1 | Mar 2, 2026 |
| OMGA | Omega Therapeutics, Inc. | 1 | Feb 27, 2023 |
| SGTX | Sigilon Therapeutics, Inc. | 1 | Aug 15, 2023 |
All filings
5 Form 4 / 4-A filings, newest first
| Filed | Top transaction | Shares | Price | Value | ||
|---|---|---|---|---|---|---|