Flagship Pioneering, LLC
- SEC CIK
- 0001400240
No open-market purchases or sales filed in the past year.
Current role at each company
- GENB Generate Biomedicines, Inc.10% Owneras of Mar 2, 2026
- FHTX Foghorn Therapeutics Inc.Director, 10% Owneras of Jan 15, 2026
- SANA Sana Biotechnology, Inc.10% Owneras of Feb 14, 2024
- SGTX Sigilon Therapeutics, Inc.10% Owneras of Aug 15, 2023
- EVLO Evelo Biosciences, Inc.10% Owneras of Jul 13, 2023
Show 2 more companies
- OMGA Omega Therapeutics, Inc.10% Owneras of Feb 27, 2023
- MCRB Seres Therapeutics, Inc.10% Owneras of Jul 7, 2022
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- –
- 0 filings
- Net
- –
- Bought minus sold
- Companies
- 0
- With open-market trades
Trades
Every Form 4 that lists Flagship Pioneering, LLC as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
GENB Generate Biomedicines, Inc.
10% Owner1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Mar 2, 2026 (view filing)5:52 PM ET | Mar 2 | Same day | Afeyan Noubar and 7 othersDirector, 10% Owner | PPurchase | +4.69M | $16.00 | +$75.0M | New position1.56M after | 3 lotsDuplicate filing |
FHTX Foghorn Therapeutics Inc.
Director, 10% Owner1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 24, 2024 (view filing)5:05 PM ET | May 22 | 2 days | Afeyan Noubar and 3 others10% Owner | PPurchase | +3.63M | $5.51 | +$20.0M | –1.81M after | Derivative2 lots |
SANA Sana Biotechnology, Inc.
10% Owner1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Feb 14, 2024 (view filing)4:00 PM ET | Feb 12 | 2 days | Afeyan Noubar and 1 other10% Owner | PPurchase | +2.73M | $5.50 | +$15.0M | –2.73M after | Derivative |
EVLO Evelo Biosciences, Inc.
10% Owner2 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jul 13, 2023 (view filing)5:15 PM ET | Jul 11 | 2 days | Afeyan Noubar and 7 others10% Owner | PPurchase | +5.41M | $2.31 | +$12.5M | New position3.93M after | 3 lots |
| Jun 1, 2022 (view filing)7:00 PM ET | May 27 | 5 days | Afeyan Noubar and 8 others10% Owner | PPurchase | +27.4M | $1.46 | +$40.0M | New position13.7M after | 5 lots |
OMGA Omega Therapeutics, Inc.
10% Owner3 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Feb 27, 2023 (view filing)5:20 PM ET | Feb 27 | Same day | Afeyan Noubar and 3 othersDirector, 10% Owner | PPurchase | +3.32M | $5.78 | +$19.2M | New position1.33M after | 2 lots |
| Aug 5, 2021 (view filing)5:43 PM ET | Aug 3 | 2 days | Flagship Pioneering, LLC and 5 others10% Owner | PPurchase | +1.18M | $17.00 | +$20.0M | +266.7%1.62M after | 3 lotsDuplicate filing |
| Aug 5, 2021 (view filing)5:41 PM ET | Aug 3 | 2 days | Afeyan Noubar and 9 othersDirector, 10% Owner | PPurchase | +1.18M | $17.00 | +$20.0M | +266.7%1.62M after | 3 lots |
MCRB Seres Therapeutics, Inc.
10% Owner1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jul 7, 2022 (view filing)5:00 PM ET | Jul 5 | 2 days | Afeyan Noubar and 3 others10% Owner | PPurchase | +8.74M | $3.15 | +$27.5M | New position5.83M after | 2 lots |