ARTV — Artiva Biotherapeutics, Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2024-07-19.
Performance
Technicals
Others in Healthcare
Measured signals that fired on ARTV
| date | signal | measured base rate |
|---|---|---|
| 2026-08-06 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-05-19 | Cluster sale: three or more insiders insider | -0.37% over 21 days · t = -3.38 · n = 21,542 statistically distinguishable from its control group |
| 2026-05-13 | Cluster buy: three or more insiders insider | +0.63% over 21 days · t = 1.84 · n = 3,050 not distinguishable from its control group |
| 2026-03-11 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-18 | Banerjee Subhashis Chief Medical Officer | Open-market sale 10b5-1 plan | 429 | 12.00 | 5.1K |
| 2026-08-18 | Banerjee Subhashis Chief Medical Officer | Option exercise 10b5-1 plan | 429 | 1.92 | 824 |
| 2026-07-31 | Shah Rajeev M. Director | Open-market purchase | 24.9K | 9.93 | 247.7K |
| 2026-07-31 | RA Capital Healthcare Fund LP Director | Open-market purchase | 24.9K | 9.93 | 247.7K |
| 2026-07-31 | RA Capital Nexus Fund, L.P. Director | Open-market purchase | 24.9K | 9.93 | 247.7K |
| 2026-07-31 | RA CAPITAL MANAGEMENT, L.P. Director | Open-market purchase | 24.9K | 9.93 | 247.7K |
| 2026-07-31 | RA Capital Nexus Fund III, L.P. Director | Open-market purchase | 24.9K | 9.93 | 247.7K |
| 2026-07-31 | Kolchinsky Peter Director | Open-market purchase | 24.9K | 9.93 | 247.7K |
| 2026-07-29 | Kolchinsky Peter Director | Open-market purchase | 20.8K | 9.99 | 208.0K |
| 2026-07-29 | Shah Rajeev M. Director | Open-market purchase | 20.8K | 9.99 | 208.0K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 63.5M | 9.9M |
| 5AM Venture Management, LLC | 15.2M | 2.4M |
| Venrock Adviser, LLC | 10.4M | 1.6M |
| venBio Partners LLC | 3.4M | 531.3K |
| FRANKLIN RESOURCES INC | 3.4M | 520.3K |
| Revelation Capital Management, LLC | 1.9M | 299.3K |
| BlackRock, Inc. | 1.4M | 213.4K |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.3M | 207.7K |
| WELLINGTON MANAGEMENT GROUP LLP | 1.3M | 194.1K |
| Propel Bio Management, LLC | 949.8K | 146.4K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 4 | 2026-08-19 | 2026-08-18 | on EDGAR ↗ |
| 144 | 2026-08-18 | — | on EDGAR ↗ |
| EFFECT | 2026-08-14 | — | on EDGAR ↗ |
| SCHEDULE 13G/A | 2026-08-14 | — | on EDGAR ↗ |
| SCHEDULE 13G/A | 2026-08-10 | — | on EDGAR ↗ |
| S-3 | 2026-08-06 | — | on EDGAR ↗ |
| 10-Q | 2026-08-06 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-06 | 2026-08-06 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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