Kolchinsky Peter (CIK 1384859) reported 225 SEC Form 4 insider transactions across 26 companies over the past 18 months (most recent 2026-08-14). Recent activity: Sell SEPN (746,500 shares), Sell SEPN (746,500 shares), Sell IKT (18.0M shares), Buy ARTV (20,824 shares), Buy ARTV (24,944 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-14 | Septerna, Inc. (SEPN) | Director | Sell | 746,500 | $31.7M |
| 2026-08-14 | Septerna, Inc. (SEPN) | Director | Sell | 746,500 | $31.7M |
| 2026-07-31 | Inhibikase Therapeutics, Inc. (IKT) | 10% Owner | Sell | 18.0M | $0 |
| 2026-07-31 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 20,824 | $208,032 |
| 2026-07-31 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 24,944 | $247,694 |
| 2026-07-28 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 41,319 | $412,777 |
| 2026-07-23 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 120,582 | $1.2M |
| 2026-07-23 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 6,522 | $58,307 |
| 2026-07-23 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 84,124 | $835,351 |
| 2026-07-23 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 59,880 | $596,405 |
| 2026-07-22 | Freenome, Inc. (FRNM) | Director | Buy | 970,950 | $0 |
| 2026-07-22 | Parabilis Medicines, Inc. (PBLS) | Director | Buy | 98,433 | $2.7M |
| 2026-07-22 | Freenome, Inc. (FRNM) | Director | Buy | 6.6M | $0 |
| 2026-07-22 | Parabilis Medicines, Inc. (PBLS) | Director | Buy | 32,987 | $914,400 |
| 2026-07-22 | Freenome, Inc. (FRNM) | Director | Buy | 553,703 | $0 |
| 2026-07-22 | Parabilis Medicines, Inc. (PBLS) | Director | Buy | 21,696 | $606,620 |
| 2026-07-22 | Freenome, Inc. (FRNM) | Director | Buy | 908,103 | $0 |
| 2026-07-22 | Parabilis Medicines, Inc. (PBLS) | Director | Buy | 6,504 | $189,722 |
| 2026-07-22 | Freenome, Inc. (FRNM) | Director | Buy | 367,427 | $0 |
| 2026-07-22 | Parabilis Medicines, Inc. (PBLS) | Director | Buy | 37,723 | $1.1M |
| 2026-07-22 | Freenome, Inc. (FRNM) | Director | Buy | 4.9M | $49.2M |
| 2026-07-22 | Parabilis Medicines, Inc. (PBLS) | Director | Buy | 47,250 | $1.4M |
| 2026-07-22 | Freenome, Inc. (FRNM) | Director | Buy | 336,965 | $3.4M |
| 2026-07-21 | Vor Biopharma Inc. (VOR) | 10% Owner | Buy | 2.1M | $4,200 |
| 2026-07-21 | Vor Biopharma Inc. (VOR) | 10% Owner | Sell | 213 | $4,207 |
Source: SEC Form 4 filings · as of 2026-08-14