Oruka Therapeutics, Inc.
ORKA- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0000907654
In the last 90 days, Oruka Therapeutics, Inc. insiders filed 0 open-market purchases and 16 sales; 255 institutions reported holding it in 13F filings for Q2 2026, worth $7.05B in total; Viking Global Investors is the only superinvestor holding it.
Holders of 5% or more of ORKA
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Oruka Therapeutics, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Fairmount Funds Management LLC | 13D/A | 19.99%11.2M shares | 0.00 ppfrom 19.99% | Mar 10, 20252 filings | Sep 19, 2025 | SEC |
| Venrock Healthcare Capital Partners III, L.P. | 13G/A | 9.90%4.91M shares | −1.20 ppfrom 11.10% | Feb 27, 20252 filings | Nov 14, 2025 | SEC |
| Viking Global Investors LPSuperinvestorViking Global Investors | 13G | 5.50%2.67M shares | New | Sep 24, 20251 filing | Sep 24, 2025 | SEC |
| RTW Investments, LP | 13G | 5.20%1.95M shares | New | May 15, 20251 filing | May 15, 2025 | SEC |
| Deep Track Capital, LP | 13G | 5.07%1.90M shares | New | May 13, 20251 filing | May 13, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
9 Schedule 13D and 13G filings on Oruka Therapeutics, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 14, 20255:35 PM ET | Venrock Healthcare Capital Partners III, L.P.and 6 others | 13G/A | 9.90%4.91M shares | −1.20 ppfrom 11.10% | Sep 30, 2025 | SEC |
| Oct 17, 20256:41 PM ET | BlackRock, Inc. | 13G/A | 4.50%2.20M shares | −0.80 ppfrom 5.30%Below 5% | Sep 30, 2025 | SEC |
| Sep 24, 20255:11 PM ET | Viking Global Investors LPand 10 othersSuperinvestorViking Global Investors | 13G | 5.50%2.67M shares | New | Sep 17, 2025 | SEC |
| Sep 19, 20256:56 PM ET | Fairmount Funds Management LLCand 4 others | 13D/A | 19.99%11.2M shares | 0.00 ppfrom 19.99% | Sep 17, 2025 | SEC |
| Jul 17, 20258:12 PM ET | BlackRock, Inc. | 13G | 5.30%1.99M shares | New | Jun 30, 2025 | SEC |
| May 15, 20258:00 AM ET | RTW Investments, LPand 1 other | 13G | 5.20%1.95M shares | New | Mar 31, 2025 | SEC |
| May 13, 20254:32 PM ET | Deep Track Capital, LPand 2 others | 13G | 5.07%1.90M shares | New | May 6, 2025 | SEC |
| Mar 10, 20257:00 PM ET | Fairmount Funds Management LLCand 4 others | 13D/A | 19.99%8.51M shares | – | Mar 6, 2025 | SEC |
| Feb 27, 20256:43 PM ET | Venrock Healthcare Capital Partners III, L.P.and 6 others | 13G/A | 11.10%4.15M shares | – | Feb 10, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Oruka Therapeutics, Inc. shares.
No Form 144 notices for Oruka Therapeutics, Inc. are on file.