ARTV Artiva Biotherapeutics, Inc.
Artiva Biotherapeutics, Inc. (ARTV) Institutional Ownership
What the institutions did with ARTV last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 18.0M | 44.1% |
| VIKING GLOBAL INVESTORS LP | 2.6M | 6.4% |
| Blackstone Inc. | 2.4M | 5.9% |
| 5AM Venture Management, LLC | 2.4M | 5.8% |
| Venrock Adviser, LLC | 2.0M | 5.0% |
| FRANKLIN RESOURCES INC | 2.0M | 4.9% |
| Caligan Partners LP | 1.7M | 4.3% |
| VANGUARD CAPITAL MANAGEMENT LLC | 981.8K | 2.4% |
| SAMSARA BIOCAPITAL, LLC | 954.9K | 2.3% |
| Blue Owl Capital Holdings LP | 874.5K | 2.2% |
| Propel Bio Management, LLC | 696.4K | 1.7% |
| BlackRock, Inc. | 694.7K | 1.7% |
| CITADEL ADVISORS LLC | 609.4K | 1.5% |
| Nantahala Capital Management, LLC | 600.0K | 1.5% |
| SILVERARC CAPITAL MANAGEMENT, LLC | 525.0K | 1.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 353.8K | 0.9% |
| BOOTHBAY FUND MANAGEMENT, LLC | 314.4K | 0.8% |
| Revelation Capital Management, LLC | 299.3K | 0.7% |
| Alyeska Investment Group, L.P. | 273.6K | 0.7% |
| ACUTA CAPITAL PARTNERS, LLC | 260.4K | 0.6% |
| KVP Capital Advisors, LP | 200.0K | 0.5% |
| WELLINGTON MANAGEMENT GROUP LLP | 194.1K | 0.5% |
| UBS Group AG | 184.0K | 0.5% |
| SEVEN GRAND MANAGERS, LLC | 175.0K | 0.4% |
| STATE STREET CORP | 165.8K | 0.4% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | Increased | 9.9M | 18.0M | +8.1M |
| VIKING GLOBAL INVESTORS LP | New | 0 | 2.6M | +2.6M |
| Blackstone Inc. | New | 0 | 2.4M | +2.4M |
| Caligan Partners LP | New | 0 | 1.7M | +1.7M |
| FRANKLIN RESOURCES INC | Increased | 520.3K | 2.0M | +1.5M |
| SAMSARA BIOCAPITAL, LLC | New | 0 | 954.9K | +954.9K |
| Blue Owl Capital Holdings LP | New | 0 | 874.5K | +874.5K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 207.7K | 981.8K | +774.1K |
| Nantahala Capital Management, LLC | New | 0 | 600.0K | +600.0K |
| CITADEL ADVISORS LLC | Increased | 15.9K | 609.4K | +593.5K |
| Propel Bio Management, LLC | Increased | 146.4K | 696.4K | +550.1K |
| venBio Partners LLC | Sold Out | 531.3K | 0 | -531.3K |
| SILVERARC CAPITAL MANAGEMENT, LLC | New | 0 | 525.0K | +525.0K |
| BlackRock, Inc. | Increased | 213.4K | 694.7K | +481.3K |
| Venrock Adviser, LLC | Increased | 1.6M | 2.0M | +434.0K |
| BOOTHBAY FUND MANAGEMENT, LLC | New | 0 | 314.4K | +314.4K |
| ACUTA CAPITAL PARTNERS, LLC | New | 0 | 260.4K | +260.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 101.7K | 353.8K | +252.2K |
| KVP Capital Advisors, LP | New | 0 | 200.0K | +200.0K |
| UBS Group AG | Increased | 1.5K | 184.0K | +182.5K |
| SEVEN GRAND MANAGERS, LLC | New | 0 | 175.0K | +175.0K |
| Alyeska Investment Group, L.P. | Increased | 100.0K | 273.6K | +173.6K |
| STATE STREET CORP | Increased | 35.8K | 165.8K | +129.9K |
| MILLENNIUM MANAGEMENT LLC | Sold Out | 123.3K | 0 | -123.3K |
| ADAR1 Capital Management, LLC | New | 0 | 118.6K | +118.6K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.