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.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Citadel Advisors LlcBuy+593,506+3739.8%609,376$5.91MQ2 2026Sep 02, 2026
Nantahala Capital Management, LlcBuy+300,000300,000$2.91MQ2 2026Aug 19, 2026
Ra Capital Management, L.P.Buy+8,102,340+82.2%17,955,642$174.17MQ2 2026Aug 14, 2026
Viking Global InvestorsBuy+2,604,1662,604,166$25.26MQ2 2026Aug 14, 2026
Blackstone Inc.Buy+2,403,4372,403,437$23.31MQ2 2026Aug 14, 2026
Caligan Partners LpBuy+1,736,1111,736,111$16.84MQ2 2026Aug 14, 2026
Samsara Biocapital, LlcBuy+954,861954,861$9.26MQ2 2026Aug 14, 2026
Venrock Adviser, LlcBuy+434,027+27.0%2,043,596$19.82MQ2 2026Aug 14, 2026
Boothbay Fund Management, LlcBuy+314,375314,375$3.05MQ2 2026Aug 14, 2026
Acuta Capital Partners, LlcBuy+260,416260,416$2.53MQ2 2026Aug 14, 2026
Seven Grand Managers, LlcBuy+175,000175,000$1.70MQ2 2026Aug 14, 2026
Alyeska Investment Group, L.P.Buy+173,615+173.6%273,615$2.65MQ2 2026Aug 14, 2026
Adar1 Capital Management, LlcBuy+118,624118,624$1.15MQ2 2026Aug 14, 2026
Dafna Capital Management LlcBuy+67,10167,101$650.88KQ2 2026Aug 14, 2026
Bridgeway Capital Management, LlcBuy+50,000+142.9%85,000$824.50KQ2 2026Aug 14, 2026
Two Sigma Investments, LpSell-36,466-31.7%78,575$762.18KQ2 2026Aug 14, 2026
Atom Investors LpBuy+22,85422,854$221.68KQ2 2026Aug 14, 2026
Xtx Topco LtdBuy+22,239+109.7%42,509$412.34KQ2 2026Aug 14, 2026
Squarepoint Ops LlcBuy+14,85514,855$144.09KQ2 2026Aug 14, 2026
Alliancebernstein L.P.Buy+13,98013,980$135.61KQ2 2026Aug 14, 2026
Charles Schwab Investment Management IncBuy+11,89611,896$115.39KQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+4,315+37.6%15,780$153.07KQ2 2026Aug 14, 2026
Wells Fargo & Company/MnBuy+3,980+265.3%5,480$53.16KQ2 2026Aug 14, 2026
Barclays PlcBuy+3,3363,336$32.36KQ2 2026Aug 14, 2026
Royal Bank Of CanadaBuy+2,878+1530.9%3,066$30.00KQ2 2026Aug 14, 2026
Mirae Asset Global Etfs Holdings Ltd.Buy+2,1362,136$20.72KQ2 2026Aug 14, 2026
Federation Des Caisses Desjardins Du QuebecBuy+2,0002,000$19.40KQ2 2026Aug 14, 2026
Legal & General Group PlcBuy+566566$5.49KQ2 2026Aug 14, 2026
Quarry LpBuy+9494$912.00Q2 2026Aug 14, 2026
Jones Financial Companies LllpBuy+1111$106.00Q2 2026Aug 14, 2026
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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.