ARTIVA BIOTHERAPEUTICS INC (ARTV) Institutional Ownership Changes & 13F Activity
ARTIVA BIOTHERAPEUTICS INC (ARTV). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Ra Capital Management, L.P., Viking Global Investors, Blackstone Inc., Caligan Partners Lp, and Samsara Biocapital, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Citadel Advisors Llc | Buy | +593,506 | +3739.8% | 609,376 | $5.91M | Q2 2026 | Sep 02, 2026 |
| Nantahala Capital Management, Llc | Buy | +300,000 | — | 300,000 | $2.91M | Q2 2026 | Aug 19, 2026 |
| Ra Capital Management, L.P. | Buy | +8,102,340 | +82.2% | 17,955,642 | $174.17M | Q2 2026 | Aug 14, 2026 |
| Viking Global Investors | Buy | +2,604,166 | — | 2,604,166 | $25.26M | Q2 2026 | Aug 14, 2026 |
| Blackstone Inc. | Buy | +2,403,437 | — | 2,403,437 | $23.31M | Q2 2026 | Aug 14, 2026 |
| Caligan Partners Lp | Buy | +1,736,111 | — | 1,736,111 | $16.84M | Q2 2026 | Aug 14, 2026 |
| Samsara Biocapital, Llc | Buy | +954,861 | — | 954,861 | $9.26M | Q2 2026 | Aug 14, 2026 |
| Venrock Adviser, Llc | Buy | +434,027 | +27.0% | 2,043,596 | $19.82M | Q2 2026 | Aug 14, 2026 |
| Boothbay Fund Management, Llc | Buy | +314,375 | — | 314,375 | $3.05M | Q2 2026 | Aug 14, 2026 |
| Acuta Capital Partners, Llc | Buy | +260,416 | — | 260,416 | $2.53M | Q2 2026 | Aug 14, 2026 |
| Seven Grand Managers, Llc | Buy | +175,000 | — | 175,000 | $1.70M | Q2 2026 | Aug 14, 2026 |
| Alyeska Investment Group, L.P. | Buy | +173,615 | +173.6% | 273,615 | $2.65M | Q2 2026 | Aug 14, 2026 |
| Adar1 Capital Management, Llc | Buy | +118,624 | — | 118,624 | $1.15M | Q2 2026 | Aug 14, 2026 |
| Dafna Capital Management Llc | Buy | +67,101 | — | 67,101 | $650.88K | Q2 2026 | Aug 14, 2026 |
| Bridgeway Capital Management, Llc | Buy | +50,000 | +142.9% | 85,000 | $824.50K | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Sell | -36,466 | -31.7% | 78,575 | $762.18K | Q2 2026 | Aug 14, 2026 |
| Atom Investors Lp | Buy | +22,854 | — | 22,854 | $221.68K | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Buy | +22,239 | +109.7% | 42,509 | $412.34K | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Buy | +14,855 | — | 14,855 | $144.09K | Q2 2026 | Aug 14, 2026 |
| Alliancebernstein L.P. | Buy | +13,980 | — | 13,980 | $135.61K | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Buy | +11,896 | — | 11,896 | $115.39K | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +4,315 | +37.6% | 15,780 | $153.07K | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Buy | +3,980 | +265.3% | 5,480 | $53.16K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +3,336 | — | 3,336 | $32.36K | Q2 2026 | Aug 14, 2026 |
| Royal Bank Of Canada | Buy | +2,878 | +1530.9% | 3,066 | $30.00K | Q2 2026 | Aug 14, 2026 |
| Mirae Asset Global Etfs Holdings Ltd. | Buy | +2,136 | — | 2,136 | $20.72K | Q2 2026 | Aug 14, 2026 |
| Federation Des Caisses Desjardins Du Quebec | Buy | +2,000 | — | 2,000 | $19.40K | Q2 2026 | Aug 14, 2026 |
| Legal & General Group Plc | Buy | +566 | — | 566 | $5.49K | Q2 2026 | Aug 14, 2026 |
| Quarry Lp | Buy | +94 | — | 94 | $912.00 | Q2 2026 | Aug 14, 2026 |
| Jones Financial Companies Lllp | Buy | +11 | — | 11 | $106.00 | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about ARTV activity
Which institutional owners are buying ARTV?
Institutional owners buying ARTV include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ARTV activity?
"Buy" means an investor increased their reported position in ARTV compared to the prior reporting period. This reflects growing exposure to ARTIVA BIOTHERAPEUTICS INC (ARTV) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ARTV increasing?
Institutional interest in ARTV can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.