ARTV
Artiva Biotherapeutics, Inc.Company with tickers: ARTV
CIK
1817241
CUSIP
04317A107
Shares Outstanding
48,588,198
Website
https://www.artivabio.com
Investor Relations
https://investors.artivabio.com/overview/default.aspx
13F Activity (30d)
31 filings
29 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 40
Total Value: $108,413,939
Total Shares: 16,834,466
Institutional Ownership Trend
7 quarters
Holder Concentration
Across 40 13F filers · Δ vs Dec 31, 2025Top Holder
58.5%
+0.4 pts
Top 5
88.3%
−0.1 pts
Top 10
94.6%
−0.7 pts
HHI
3,743
Highly concentrated+47
Quarterly Activity
vs Dec 31, 2025
New
12
Increased
3
Decreased
12
Sold Out
6
Unchanged
13
Holder count:
+6
Institutional value:
+49.0%
Shares held:
-0.7%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega BlackRock, Inc. | +850 | 213,388 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | +578 | 101,695 | |
| Mega JPMORGAN CHASE & CO | +36 | 223 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Small venBio Partners LLC | −117,170 | 531,337 | |
| Mega MILLENNIUM MANAGEMENT LLC | −93,827 | 123,270 | |
| Large RENAISSANCE TECHNOLOGIES LLC | −36,162 | 80,038 | |
| Mega UBS Group AG | −35,346 | 1,527 | |
| Mega TWO SIGMA INVESTMENTS, LP | −29,823 | 115,041 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 207,686 | $1,337,497 | |
| Small Propel Bio Management, LLC | 146,369 | $942,616 | |
| Mega VANGUARD FIDUCIARY TRUST CO | 32,810 | $211,296 | |
| Large PANAGORA ASSET MANAGEMENT INC | 30,702 | $197,720 | |
| Small Velan Capital Investment Management LP | 25,000 | $161,000 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 246,006 | $1,055,363 | |
| Large MARSHALL WACE, LLP | 79,559 | $341,306 | |
| Small Scientech Research LLC | 27,757 | $119,077 | |
| Mid PRELUDE CAPITAL MANAGEMENT, LLC | 10,691 | $45,864 | |
| Mid Tower Research Capital LLC (TRC) | 1,103 | $4,731 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid RA CAPITAL MANAGEMENT, L.P. | $63,455,264 | 58.53% | 9,853,302 | Shares | Sole | 2026-05-15 | ||||
| Small 5AM Venture Management, LLC | $15,155,277 | 13.98% | 2,353,304 | Shares | Sole | 2026-05-15 | ||||
| Mid Venrock Adviser, LLC | $10,365,624 | 9.56% | 1,609,569 | Shares | Sole | 2026-05-15 | ||||
| Small venBio Partners LLC | $3,421,810 | 3.16% | 531,337 | Shares | Sole | 2026-05-15 | ||||
| Mega FRANKLIN RESOURCES INC | $3,350,905 | 3.09% | 520,327 | Shares | Defined | 2026-05-13 | ||||
| Micro Revelation Capital Management, LLC | $1,927,562 | 1.78% | 299,311 | Shares | Sole | 2026-05-15 | ||||
| Mega BlackRock, Inc. | $1,374,217 | 1.27% | 213,388 | Shares | Sole | 2026-05-13 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $1,337,497 | 1.23% | 207,686 | Shares | Defined | 2026-05-15 | ||||
| Mega WELLINGTON MANAGEMENT GROUP LLP | $1,250,055 | 1.15% | 194,108 | Shares | Defined | 2026-05-15 | ||||
| Small Propel Bio Management, LLC | $942,616 | 0.87% | 146,369 | Shares | Defined | 2026-05-14 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $793,858 | 0.73% | 123,270 | Shares | Sole | 2026-05-15 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $740,864 | 0.68% | 115,041 | Shares | Sole | 2026-05-15 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $654,915 | 0.60% | 101,695 | Shares | Defined | 2026-05-15 | ||||
| Large Alyeska Investment Group, L.P. | $644,000 | 0.59% | 100,000 | Shares | Sole | 2026-05-15 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $515,444 | 0.48% | 80,038 | Shares | Sole | 2026-05-14 | ||||
| Mega JANE STREET GROUP, LLC | $254,354 | 0.23% | 39,496 | Shares | Defined | 2026-05-12 | ||||
| Mega STATE STREET CORP | $230,706 | 0.21% | 35,824 | Shares | Defined | 2026-05-15 | ||||
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | $225,400 | 0.21% | 35,000 | Shares | Sole | 2026-05-15 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $211,296 | 0.19% | 32,810 | Shares | Defined | 2026-05-08 | ||||
| Large PANAGORA ASSET MANAGEMENT INC | $197,720 | 0.18% | 30,702 | Shares | Sole | 2026-05-14 | ||||
| Small Velan Capital Investment Management LP | $161,000 | 0.15% | 25,000 | Shares | Sole | 2026-05-15 | ||||
| Small Simplify Asset Management Inc. | $149,601 | 0.14% | 23,230 | Shares | Sole | 2026-04-27 | ||||
| Mid Sanctuary Advisors, LLC | $138,981 | 0.13% | 21,581 | Shares | Sole | 2026-05-05 | ||||
| Mid BAILARD, INC. | $133,308 | 0.12% | 20,700 | Shares | Sole | 2026-05-11 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $131,181 | 0.12% | 20,370 | Shares | Sole | 2026-05-07 | ||||
| Mid XTX Topco Ltd | $130,538 | 0.12% | 20,270 | Shares | Defined | 2026-05-15 | ||||
| Mega MORGAN STANLEY | $105,467 | 0.10% | 16,377 | Shares | Defined | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $102,202 | 0.09% | 15,870 | Shares | Defined | 2026-05-15 | ||||
| Mega NORTHERN TRUST CORP Bank | $78,619 | 0.07% | 12,208 | Shares | Defined | 2026-05-14 | ||||
| Mega GOLDMAN SACHS GROUP INC | $73,834 | 0.07% | 11,465 | Shares | Defined | 2026-05-15 | ||||
| Large OMERS ADMINISTRATION Corp | $73,416 | 0.07% | 11,400 | Shares | Sole | 2026-05-15 | ||||
| Large Russell Investments Group, Ltd. | $35,362 | 0.03% | 5,491 | Shares | Defined | 2026-05-08 | ||||
| Mega FMR LLC | $22,726 | 0.02% | 3,529 | Shares | Defined | 2026-05-15 | ||||
| Mega UBS Group AG | $9,833 | 0.01% | 1,527 | Shares | Defined | 2026-05-05 | ||||
| Mega WELLS FARGO & COMPANY/MN | $9,660 | 0.01% | 1,500 | Shares | Defined | 2026-05-11 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $3,490 | 0.00% | 542 | Shares | Defined | 2026-05-12 | ||||
| Small MARK SHEPTOFF FINANCIAL PLANNING, LLC | $2,576 | 0.00% | 400 | Shares | Sole | 2026-05-11 | ||||
| Mega JPMORGAN CHASE & CO | $1,436 | 0.00% | 223 | Shares | Defined | 2026-05-13 | ||||
| Mega ROYAL BANK OF CANADA Bank | $1,210 | 0.00% | 188 | Shares | Defined | 2026-05-15 | ||||
| Large OSAIC HOLDINGS, INC. | $115 | 0.00% | 18 | Shares | Defined | 2026-05-15 | ||||
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