ARTV — Institutional owners (13F)
Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.
| Institution | Value | Shares | % of tracked 13F | Type |
|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | $174,169,727 | 17,955,642 | 44.38% | Shares |
| VIKING GLOBAL INVESTORS LP | $25,260,410 | 2,604,166 | 6.44% | Shares |
| Blackstone Inc. | $23,313,339 | 2,403,437 | 5.94% | Shares |
| 5AM Venture Management, LLC | $22,827,049 | 2,353,304 | 5.82% | Shares |
| Venrock Adviser, LLC | $19,822,881 | 2,043,596 | 5.05% | Shares |
| FRANKLIN RESOURCES INC | $19,373,063 | 1,997,223 | 4.94% | Shares |
| Caligan Partners LP | $16,840,277 | 1,736,111 | 4.29% | Shares |
| VANGUARD CAPITAL MANAGEMENT LLC | $9,523,606 | 981,815 | 2.43% | Shares |
| SAMSARA BIOCAPITAL, LLC | $9,262,152 | 954,861 | 2.36% | Shares |
| Blue Owl Capital Holdings LP | $8,483,057 | 874,542 | 2.16% | Shares |
| Propel Bio Management, LLC | $6,755,429 | 696,436 | 1.72% | Shares |
| BlackRock, Inc. | $6,738,842 | 694,726 | 1.72% | Shares |
| CITADEL ADVISORS LLC | $5,910,947 | 609,376 | 1.51% | Shares |
| SILVERARC CAPITAL MANAGEMENT, LLC | $5,092,500 | 525,000 | 1.30% | Shares |
| GEODE CAPITAL MANAGEMENT, LLC | $3,433,947 | 353,845 | 0.87% | Shares |
| BOOTHBAY FUND MANAGEMENT, LLC | $3,049,438 | 314,375 | 0.78% | Shares |
| Nantahala Capital Management, LLC | $2,910,000 | 300,000 | 0.74% | Shares |
| Revelation Capital Management, LLC | $2,903,317 | 299,311 | 0.74% | Shares |
| Alyeska Investment Group, L.P. | $2,654,066 | 273,615 | 0.68% | Shares |
| ACUTA CAPITAL PARTNERS, LLC | $2,526,035 | 260,416 | 0.64% | Shares |
| KVP Capital Advisors, LP | $1,940,000 | 200,000 | 0.49% | Shares |
| WELLINGTON MANAGEMENT GROUP LLP | $1,882,848 | 194,108 | 0.48% | Shares |
| UBS Group AG | $1,784,994 | 184,020 | 0.45% | Shares |
| SEVEN GRAND MANAGERS, LLC | $1,697,500 | 175,000 | 0.43% | Shares |
| STATE STREET CORP | $1,607,911 | 165,764 | 0.41% | Shares |
| RENAISSANCE TECHNOLOGIES LLC | $1,464,700 | 151,000 | 0.37% | Shares |
| VANGUARD FIDUCIARY TRUST CO | $1,439,412 | 148,393 | 0.37% | Shares |
| ADAR1 Capital Management, LLC | $1,150,653 | 118,624 | 0.29% | Shares |
| VANGUARD GROUP INC | $1,055,366 | 246,006 | 0.27% | Shares |
| Simplify Asset Management Inc. | $983,144 | 101,355 | 0.25% | Shares |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $824,500 | 85,000 | 0.21% | Shares |
| TWO SIGMA INVESTMENTS, LP | $762,178 | 78,575 | 0.19% | Shares |
| NORTHERN TRUST CORP | $741,303 | 76,423 | 0.19% | Shares |
| DAFNA Capital Management LLC | $650,880 | 67,101 | 0.17% | Shares |
| Quadrature Capital Ltd | $478,647 | 49,345 | 0.12% | Shares |
| DIMENSIONAL FUND ADVISORS LP | $434,705 | 44,815 | 0.11% | Shares |
| XTX Topco Ltd | $412,337 | 42,509 | 0.11% | Shares |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $301,796 | 31,113 | 0.08% | Shares |
| Velan Capital Investment Management LP | $242,500 | 25,000 | 0.06% | Shares |
| Atom Investors LP | $221,684 | 22,854 | 0.06% | Shares |
| BAILARD, INC. | $200,790 | 20,700 | 0.05% | Shares |
| Spark Investment Management LLC | $160,050 | 16,500 | 0.04% | Shares |
| GOLDMAN SACHS GROUP INC | $153,066 | 15,780 | 0.04% | Shares |
| Squarepoint Ops LLC | $144,094 | 14,855 | 0.04% | Shares |
| ALLIANCEBERNSTEIN L.P. | $135,606 | 13,980 | 0.03% | Shares |
| Vanguard Global Advisers, LLC | $116,187 | 11,978 | 0.03% | Shares |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $115,391 | 11,896 | 0.03% | Shares |
| NEW YORK STATE COMMON RETIREMENT FUND | $59,170 | 6,100 | 0.02% | Shares |
| Russell Investments Group, Ltd. | $56,852 | 5,861 | 0.01% | Shares |
| WELLS FARGO & COMPANY/MN | $53,156 | 5,480 | 0.01% | Shares |
| State of Wyoming | $44,504 | 4,588 | 0.01% | Shares |
| JPMORGAN CHASE & CO | $40,149 | 4,191 | 0.01% | Shares |
| FMR LLC | $34,513 | 3,558 | 0.01% | Shares |
| BARCLAYS PLC | $32,359 | 3,336 | 0.01% | Shares |
| ROYAL BANK OF CANADA | $30,000 | 3,066 | 0.01% | Shares |
| RHUMBLINE ADVISERS | $29,474 | 3,039 | 0.01% | Shares |
| MORGAN STANLEY | $21,457 | 2,212 | 0.01% | Shares |
| CITIGROUP INC | $20,788 | 2,143 | 0.01% | Shares |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $20,719 | 2,136 | 0.01% | Shares |
| Federation des caisses Desjardins du Quebec | $19,400 | 2,000 | 0.00% | Shares |
| China Universal Asset Management Co., Ltd. | $15,520 | 1,600 | 0.00% | Shares |
| BNP PARIBAS FINANCIAL MARKETS | $11,136 | 1,148 | 0.00% | Shares |
| Legal & General Group Plc | $5,490 | 566 | 0.00% | Shares |
| Steward Partners Investment Advisory, LLC | $4,850 | 500 | 0.00% | Shares |
| Ameritas Investment Partners, Inc. | $4,084 | 421 | 0.00% | Shares |
| MARK SHEPTOFF FINANCIAL PLANNING, LLC | $3,880 | 400 | 0.00% | Shares |
| Tower Research Capital LLC (TRC) | $2,396 | 247 | 0.00% | Shares |
| US BANCORP \DE\ | $2,280 | 235 | 0.00% | Shares |
| Quarry LP | $912 | 94 | 0.00% | Shares |
| Sterling Capital Management LLC | $698 | 72 | 0.00% | Shares |
| ACADIAN ASSET MANAGEMENT LLC | $221 | 22,940 | 0.00% | Shares |
| Caitong International Asset Management Co., Ltd | $126 | 13 | 0.00% | Shares |
| JONES FINANCIAL COMPANIES LLLP | $106 | 11 | 0.00% | Shares |