RA Capital Nexus Fund, L.P. (CIK 1780117) reported 91 SEC Form 4 insider transactions across 6 companies over the past 18 months (most recent 2026-06-16). Recent activity: Buy ARTV (391,019 shares), Buy ARTV (15,414 shares), Buy ARTV (124,893 shares), Buy ARTV (479,039 shares), Buy ARTV (103 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-16 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 391,019 | $3.4M |
| 2026-06-16 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 15,414 | $138,572 |
| 2026-06-16 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 124,893 | $1.1M |
| 2026-06-11 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 479,039 | $3.3M |
| 2026-06-11 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 103 | $721 |
| 2026-06-11 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 548,580 | $4.3M |
| 2026-05-13 | Artiva Biotherapeutics, Inc. (ARTV) | Director | Buy | 6.5M | $75.0M |
| 2026-01-07 | Climb Bio, Inc. (CLYM) | Director | Buy | 7,111 | $24,888 |
| 2025-12-15 | Climb Bio, Inc. (CLYM) | Director | Sell | 20.4M | $0 |
| 2025-12-15 | Climb Bio, Inc. (CLYM) | Director | Buy | 213,099 | $464,556 |
| 2025-12-15 | Climb Bio, Inc. (CLYM) | Director | Buy | 101,462 | $290,181 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 1,235 | $49,264 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 150 | $5,984 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 801 | $31,952 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 947 | $37,776 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 96 | $3,888 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 788 | $31,914 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 512 | $20,736 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 604 | $24,462 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 1,210 | $47,795 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 9,924 | $391,998 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 6,440 | $254,380 |
| 2025-11-24 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 7,609 | $300,556 |
| 2025-11-19 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 2,182 | $87,716 |
| 2025-11-19 | Sionna Therapeutics, Inc. (SION) | Director | Sell | 17,913 | $720,103 |
Source: SEC Form 4 filings · as of 2026-06-16