ORKA Oruka Therapeutics, Inc.: institutional ownership and insider trading
263 funds reported holding $7.16B of Oruka Therapeutics, Inc. in their latest 13F filings; in Q2 2026 funds net bought $1.99B, with 95 new positions and 27 funds selling out; over the last 12 months insiders bought $0 and sold $338M on the open market.
Famous investors holding ORKA
- Andreas Halvorsen (Viking Global Investors): $143M, 0.4% of the portfolio
- Ken Griffin (Citadel Advisors): $110M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $3.13M, 0.0% of the portfolio
Largest institutional holders of ORKA
- FMR LLC — $862M
- BlackRock, Inc. (BLK) — $475M
- VR Adviser, LLC — $395M
- Fairmount Funds Management LLC — $353M
- Capital World Investors — $324M
- RTW INVESTMENTS, LP — $299M
- STATE STREET CORP (STT, STT-PG) — $254M
- VANGUARD CAPITAL MANAGEMENT LLC — $225M
- Paradigm Biocapital Advisors LP — $204M
- Deep Track Capital, LP — $183M
Recent ORKA insider trades
- Oct 20, 2026: Quinlan Paul T sold 9,000 shares ($707K)
- Oct 15, 2026: Goncalves Joana sold 7,000 shares ($524K)
- Oct 12, 2026: Agarwal Arjun sold 9,999 shares ($806K)
- Oct 1, 2026: Klein Lawrence Otto sold 25,000 shares ($2.09M)
5%+ owners
- Fairmount Funds Management LLC: 20.0% (Schedule 13D/A, filed May 4, 2026)
- Harwin Peter Evan: 19.5% (Schedule 13D/A, filed Jul 1, 2026)
- Venrock Healthcare Capital Partners III, L.P.: 7.4% (Schedule 13G/A, filed Aug 14, 2026)
- Capital World Investors: 5.6% (Schedule 13G, filed Aug 12, 2026)
- RTW Investments, LP: 5.2% (Schedule 13G, filed Aug 14, 2026)