Institutional Holders (2026 Q2)
71 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in ARTV. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | 5AM Venture Management, LLC | 7.93% | 2,353,304 | $22.8M |
| 2 | Propel Bio Management, LLC | 3.54% | 696,436 | $6.8M |
| 3 | Revelation Capital Management, LLC | 2.65% | 299,311 | $2.9M |
| 4 | Acuta Capital Partners, LLC | 1.76% | 260,416 | $2.5M |
| 5 | Ra Capital Management, L.P. | 1.51% | 17,955,642 | $174.2M |
| 6 | KVP Capital Advisors, LP | 1.42% | 200,000 | $1.9M |
| 7 | Blue Owl Capital Holdings LP | 1.28% | 874,542 | $8.5M |
| 8 | Caligan Partners LP | 0.79% | 1,736,111 | $16.8M |
| 9 | Samsara BioCapital, LLC | 0.76% | 954,861 | $9.3M |
| 10 | Venrock Adviser, LLC | 0.60% | 2,043,596 | $19.8M |
| 11 | Silverarc Capital Management, LLC | 0.53% | 525,000 | $5.1M |
| 12 | Spark Investment Management LLC | 0.31% | 16,500 | $160K |
| 13 | Velan Capital Investment Management LP | 0.15% | 25,000 | $242K |
| 14 | DAFNA Capital Management LLC | 0.12% | 67,101 | $651K |
| 15 | Nantahala Capital Management, LLC | 0.10% | 300,000 | $2.9M |
| 16 | Viking Global Investors LP | 0.07% | 2,604,166 | $25.3M |
| 17 | Seven Grand Managers, LLC | 0.07% | 175,000 | $1.7M |
| 18 | ADAR1 Capital Management, LLC | 0.05% | 118,624 | $1.2M |
| 19 | Boothbay Fund Management, LLC | 0.04% | 314,375 | $3.0M |
| 20 | Atom Investors LP | 0.02% | 22,854 | $222K |
| 21 | Bridgeway Capital Management, LLC | 0.01% | 85,000 | $824K |
| 22 | Simplify Asset Management Inc. | 0.01% | 101,355 | $983K |
| 23 | Alyeska Investment Group, L.P. | 0.01% | 273,615 | $2.7M |
| 24 | XTX Topco Ltd | 0.01% | 42,509 | $412K |
| 25 | State of Wyoming | 0.00% | 4,588 | $45K |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|