🕵️ Artiva Biotherapeutics, Inc. ($ARTV)
SEC insider & ownership activity, last 12 months · CIK 1817241 · every row links its SEC filing
Over the last 12 months insiders sold $741K against $133.7M of open-market buying. RA Capital Management, L.P. bought $117.2M (May–Jul). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
2 buyers, $133.7M (21 lots) · 5 sellers, $741K (9 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| RA Capital Management, L.P. | 19 | $117.2M | 0 | – | Jul 24, 2026 |
| GC Corp. | 2 | $16.5M | 0 | – | May 11, 2026 |
| FRED Aslan, M.D. | 0 | – | 5 | $507K | May 19, 2026 |
| Jennifer Bush | 0 | – | 1 | $79K | May 19, 2026 |
| Subhashis Banerjee | 0 | – | 1 | $63K | May 19, 2026 |
| Christopher P. Horan | 0 | – | 1 | $63K | May 19, 2026 |
| Heather Raymon | 0 | – | 1 | $28K | May 19, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| RA Capital Management, L.P. | 37.9% | 13D | Jul 22, 2026 | filing ↗ | |
| Peter Kolchinsky | 37.9% | 13D | Jul 22, 2026 | filing ↗ | |
| Rajeev Shah | 37.9% | 13D | Jul 22, 2026 | filing ↗ | |
| RA Capital Healthcare Fund, L.P. | 35.5% | 13D | Jul 22, 2026 | filing ↗ | |
| GC Corp | 12.3% | 13D | May 11, 2026 | filing ↗ | |
| Yong-Jun Huh | 12.3% | 13D | May 11, 2026 | filing ↗ | |
| Viking Global Investors LP | 5.4% | 13G | May 18, 2026 | filing ↗ | |
| Viking Global Opportunities Parent GP LLC | 5.4% | 13G | May 18, 2026 | filing ↗ | |
| Halvorsen Ole Andreas | 5.4% | 13G | May 18, 2026 | filing ↗ | |
| Shabet Rose Sharon | 5.4% | 13G | May 18, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Subhashis Banerjee | $65K | May 18, 2026 | filing ↗ |
| Heather Raymon | $32K | May 18, 2026 | filing ↗ |
| FRED Aslan, M.D. | $258K | May 18, 2026 | filing ↗ |
| Christopher P. Horan | $69K | May 18, 2026 | filing ↗ |
| Jennifer Bush | $83K | May 18, 2026 | filing ↗ |
| Fred Aslan | $42K | Dec 15, 2025 | filing ↗ |
| Fred Aslan | $21K | Nov 17, 2025 | filing ↗ |
| Fred Aslan | $71K | Oct 17, 2025 | filing ↗ |
| Fred Aslan | $69K | Aug 15, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Jul 22, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 18, 2026 | filing ↗ |
| Other events (8.01) | May 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 8, 2026 | filing ↗ |
| Earnings (2.02) | May 8, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 8, 2026 | filing ↗ |
| Other events (8.01) | May 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 8, 2026 | filing ↗ |
| Earnings (2.02) | Mar 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 10, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 18, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 18, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 10, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 12, 2025 | filing ↗ |
| Other events (8.01) | Nov 12, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 12, 2025 | filing ↗ |
| Earnings (2.02) | Nov 12, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 12, 2025 | filing ↗ |
| Earnings (2.02) | Aug 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2025 | filing ↗ |