OrbiMed Capital GP VIII LLC (CIK 1845804) reported 53 SEC Form 4 insider transactions across 5 companies over the past 18 months (most recent 2026-08-12). Recent activity: Buy BLSM (1.0M shares), Buy BLSM (1.0M shares), Buy BLSM (625,000 shares), Buy SCTX (348,825 shares), Buy SCTX (1.0M shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-12 | BlossomHill Therapeutics, Inc. (BLSM) | Director | Buy | 1.0M | $0 |
| 2026-08-12 | BlossomHill Therapeutics, Inc. (BLSM) | Director | Buy | 1.0M | $0 |
| 2026-08-12 | BlossomHill Therapeutics, Inc. (BLSM) | Director | Buy | 625,000 | $10.0M |
| 2026-07-29 | Scribe Therapeutics, Inc. (SCTX) | Director | Buy | 348,825 | $0 |
| 2026-07-29 | Scribe Therapeutics, Inc. (SCTX) | Director | Buy | 1.0M | $15.0M |
| 2026-07-09 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 85,918 | $3.9M |
| 2026-07-02 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 115,844 | $5.3M |
| 2026-05-29 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 101 | $4,493 |
| 2026-05-11 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 48,546 | $2.2M |
| 2026-05-11 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 59,767 | $2.7M |
| 2026-05-11 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 184,639 | $8.5M |
| 2026-04-28 | Traws Pharma, Inc. (TRAW) | 10% Owner | Buy | 597,729 | $998,207 |
| 2026-04-21 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 52,397 | $2.3M |
| 2026-04-21 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 2,948 | $131,245 |
| 2026-04-16 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 47,814 | $2.1M |
| 2026-04-16 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 235,863 | $10.5M |
| 2026-04-16 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 226,906 | $10.3M |
| 2026-02-04 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 1,890 | $84,237 |
| 2026-02-04 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 29,063 | $1.3M |
| 2025-12-29 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 33,356 | $1.5M |
| 2025-12-19 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 900 | $40,050 |
| 2025-12-19 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 100 | $4,449 |
| 2025-12-19 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 875 | $38,929 |
| 2025-11-26 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 94,583 | $4.2M |
| 2025-11-26 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 11,890 | $530,294 |
Source: SEC Form 4 filings · as of 2026-08-12