Holdings derived from the most recent reported transactions. Not adjusted for stock splits or share-class conversions.
| Issuer | Shares | Source | Last tx | Detail |
|---|---|---|---|---|
| Nuvalent, Inc. | 5,146 | reported | 18 Jun 2025 | tx 10+93,082−10,000 |
| Bioverativ Inc. | 0 | reported | 08 Mar 2018 | tx 6+29,517−29,517 |
| Mersana Therapeutics, Inc. | 0 | reported | 06 Jan 2026 | tx 76+3,271,826−1,147,990 |
| Dicerna Pharmaceuticals Inc | 0 | reported | 03 Jun 2021 | tx 6+71,666−3,333 |
| MILLENNIUM PHARMACEUTICALS INC | 0 | reported | 14 May 2008 | tx 82+443,748−617,671 |
| ARIAD PHARMACEUTICALS INC | 0 | reported | 16 Feb 2017 | tx 10+166,910−166,910 |
| Date | Type | Issuer | Qty | Price | Signals |
|---|---|---|---|---|---|
| 06 Jan 2026 | TENDER | Mersana Therapeutics, Inc. | 9,609 | — | |
| 06 Jan 2026 | TENDER | Mersana Therapeutics, Inc. | 6,721 | — | |
| 06 Jan 2026 | TENDER | Mersana Therapeutics, Inc. | 2,890 | — | |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 1 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 2,460 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 2,500 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 480 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 7,519 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 542 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 8,137 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 166 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 18 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 988 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 11,761 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 665 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 9,043 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 11,250 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 2,200 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 1,131 | — | deriv |
| 06 Jan 2026 | OTHER | Mersana Therapeutics, Inc. | 5,227 | — | deriv |
| 18 Jun 2025 | GRANT_AWARD | Nuvalent, Inc. | 2,647 | 0.00 USD | |
| 18 Jun 2025 | GRANT_AWARD | Nuvalent, Inc. | 4,147 | 0.00 USD | deriv |
| 12 Jun 2025 | GRANT_AWARD | Mersana Therapeutics, Inc. | 61,500 | 0.00 USD | deriv |
| 16 Jan 2025 | SALE | Mersana Therapeutics, Inc. | 8,637 | 0.58 USD | |
| 15 Jan 2025 | EXERCISE | Mersana Therapeutics, Inc. | 21,250 | 0.00 USD |