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Disclosery

ARTV ARTIVA BIOTHERAPEUTICS INC

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COM (common), issuer CIK 1817241

39 managers (40 13F filers) reported a position in ARTV shares at 2026-03-31, 16,834,466 shares in all. 10 filers opened a position and 5 filers sold out during the quarter.

Managers
39
13F filers
40
New
10
Added
3
Reduced
12
Sold out
5
Shares held by filers
16,834,466

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Aslan Freddirector, officer (Chief Executive Officer)2026-10-06-23,463 S$7.1977Form 4
Horan Christopherofficer (Chief Tech Operations Officer)2026-10-05-10,340 S$6.8372Form 4
Bush Jenniferofficer (COO, CLO, Compliance Officer)2026-10-05-8,370 S$6.8372Form 4
Banerjee Subhashisofficer (Chief Medical Officer)2026-10-05-1,099 S$6.8372Form 4
Aslan Freddirector, officer (Chief Executive Officer)2026-10-05-61,696 S$6.8372Form 4

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.9,853,302$63.5M0.67%013F-HRTimelineGroup
5AM Venture Management, LLC2,353,304$15.2M4.21%013F-HRTimeline
Venrock Adviser, LLC1,609,569$10.4M0.39%013F-HRTimeline
venBio Partners LLC531,337$3.42M1.22%-117,17013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources520,327$3.35M<0.01%013F-HRTimelineGroup
Revelation Capital Management, LLC299,311$1.93M2.86%013F-HRTimeline
VANGUARD GROUP INCgroup of 2 filers holding240,496$1.55MnewTimeline
BlackRock, Inc.in group BlackRock, Inc.213,388$1.37M<0.01%+85013F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…194,108$1.25M<0.01%013F-HRTimelineGroup
Propel Bio Management, LLC146,369$950K0.6%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC123,270$794K<0.01%-93,82713F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP115,041$741K<0.01%-29,82313F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC101,695$655K<0.01%+57813F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.100,000$644K<0.01%013F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC80,038$515K<0.01%-36,16213F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC39,496$254K<0.01%-1,17513F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP35,824$231K<0.01%013F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC35,000$225K<0.01%013F-HRTimeline
PANAGORA ASSET MANAGEMENT INC30,702$198K<0.01%new13F-HRTimeline
Velan Capital Investment Management LP25,000$161K0.1%new13F-HRTimeline
Simplify Asset Management Inc.23,230$150K<0.01%new13F-HRTimeline
Sanctuary Advisors, LLC21,581$139K<0.01%new13F-HRTimeline
BAILARD, INC.20,700$133K<0.01%new13F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP20,370$131K<0.01%new13F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd20,270$131K<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY16,377$105K<0.01%-10,69513F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC15,870$102K<0.01%new13F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP12,208$78.6K<0.01%new13F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC11,465$73.8K<0.01%-59513F-HRTimelineGroup
OMERS ADMINISTRATION Corp11,400$73.4K<0.01%-9,70013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…5,491$35.4K<0.01%013F-HRTimelineGroup
FMR LLCin group FMR LLC3,529$22.7K<0.01%-2913F-HRTimelineGroup
UBS Group AGin group UBS Group AG1,527$9.83K<0.01%-35,34613F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN1,500$9.66K<0.01%013F-HR/ATimelineGroup
MARK SHEPTOFF FINANCIAL PLANNING, LLC400$4.24K<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS542$3.49K<0.01%013F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO223$1.22K<0.01%+3613F-HR/ATimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA188$1K<0.01%-15113F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.18$116<0.01%-1413F-HRTimelineGroup

Events

  • Aslan Fred sold 23,463 ARTV shares on 2026-10-06, Form 4 filed 2026-10-07. 0001193125-26-416953

    Accepted , ingested

  • Horan Christopher sold 10,340 ARTV shares on 2026-10-05, Form 4 filed 2026-10-06. 0001193125-26-415531

    Accepted , ingested

  • Bush Jennifer sold 8,370 ARTV shares on 2026-10-05, Form 4 filed 2026-10-06. 0001193125-26-415529

    Accepted , ingested

  • Banerjee Subhashis sold 1,099 ARTV shares on 2026-10-05, Form 4 filed 2026-10-06. 0001193125-26-415528

    Accepted , ingested

  • Aslan Fred sold 61,696 ARTV shares on 2026-10-05, Form 4 filed 2026-10-06. 0001193125-26-415527

    Accepted , ingested