Oruka TherapeuticsORKA
13F holders, Q1 2026 (March 31)184holders +41
55new positions
19sold out
3famous investors
$49.03avg. 13F price*
At the end of Q1 2026, 184 institutions reported holding Oruka Therapeutics Inc. (ORKA) in their 13F filings, up 41 from Q4 2025. 55 opened new positions and 19 sold out. The largest holders were FMR LLC ($364.5M), Venrock Adviser, LLC ($203.5M) and Fairmount Funds Management LLC ($181.7M). 3 famous investors held it, including Andreas Halvorsen (0.4% of Viking Global Investors's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Oruka Therapeutics Inc.
- CUSIP
- 687604108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 55 | $148.0M |
| Exits | 19 | $157.6M |
All 13F filers, Q4 2025 → Q1 2026: 5,404,734 shares bought and 6,425,221 shares sold, net −1,020,487 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 184 holders
| FMR LLC | 0.02% | Add +2.3% | 7,431,403 | $364.5M |
| Venrock Adviser, LLC | 7.59% | No change | 4,148,428 | $203.5M |
| Fairmount Funds Management LLC | 13.13% | No change | 3,705,262 | $181.7M |
| BlackRock, Inc. | 0.00% | Reduce -0.3% | 3,527,087 | $173.0M |
| Viking Global Investors | 0.37% | No change | 2,666,690 | $130.8M |
| Paradigm Biocapital Advisors LP | 2.33% | Add +35.7% | 2,320,316 | $113.8M |
| RTW Investments, LP | 1.00% | No change | 2,058,148 | $101.0M |
| Deep Track Capital, LP | 2.06% | Reduce -5.9% | 2,034,203 | $99.8M |
| Vanguard Capital Management LLC | 0.00% | — | 1,859,631 | $91.2M |
| State Street Corp. | 0.00% | Add +16.6% | 1,613,461 | $79.1M |
| Remedium Capital Partners, LLC | 27.31% | Add +0.8% | 1,565,661 | $76.8M |
| Perceptive Advisors LLC | 1.36% | Reduce -5.5% | 1,395,501 | $68.4M |
| Polar Capital Holdings Plc | 0.22% | Add +7.1% | 1,047,693 | $51.4M |
| Citadel Advisors | 0.04% | Add +38.8% | 1,007,537 | $49.4M |
| Franklin Resources Inc. | 0.01% | Add +7.0% | 1,004,056 | $49.2M |
| Geode Capital Management, LLC | 0.00% | Add +1.3% | 954,867 | $46.8M |
| Mercer Global Advisors Inc. | 0.06% | Add +7.7% | 802,470 | $39.4M |
| Avidity Partners Management LP | 7.55% | Add +15.1% | 760,424 | $37.3M |
| T. Rowe Price Associates Inc. | 0.00% | Add +12.0% | 727,449 | $35.7M |
| Woodline Partners LP | 0.11% | Add +0.1% | 574,882 | $28.2M |
| Cormorant Asset Management, LP | 1.32% | No change | 533,340 | $26.2M |
| Bellevue Group AG | 0.59% | New | 507,008 | $24.9M |
| Affinity Asset Advisors, LLC | 1.47% | Reduce -37.7% | 499,673 | $24.5M |
| Synergy Asset Management, LLC | 2.48% | Add +3.8% | 476,196 | $23.4M |
| SR One Capital Management, LP | 2.31% | No change | 430,330 | $21.1M |
| Candriam S.C.A. | 0.11% | Add +2.6% | 411,006 | $20.2M |
| Vanguard Portfolio Management LLC | 0.00% | — | 350,892 | $17.2M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -2.3% | 321,949 | $15.8M |
| Westfield Capital Management Co. LP | 0.06% | New | 313,130 | $15.4M |
| Northern Trust Corp. | 0.00% | Add +6.5% | 299,044 | $14.7M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 257,071 | $12.6M |
| Goldman Sachs Group Inc. | 0.00% | Add +165.3% | 246,711 | $12.1M |
| Ikarian Capital, LLC | 1.70% | New | 242,021 | $11.9M |
| Atika Capital Management LLC | 1.78% | New | 229,900 | $11.3M |
| UBS Group AG | 0.00% | Reduce -21.7% | 212,271 | $10.4M |
| Cable Car Capital, LP | 4.19% | Reduce -50.0% | 200,000 | $9.8M |
| Adage Capital Partners Gp, L.L.C. | 0.01% | New | 190,030 | $9.3M |
| Holocene Advisors, LP | 0.02% | New | 185,513 | $9.1M |
| Alyeska Investment Group, L.P. | 0.03% | Add +84.9% | 184,863 | $9.1M |
| Great Point Partners LLC | 2.20% | No change | 183,330 | $9.0M |
| Jennison Associates LLC | 0.01% | New | 176,680 | $8.7M |
| Morgan Stanley | 0.00% | Add +43.6% | 175,454 | $8.6M |
| PFM Health Sciences, LP | 0.91% | New | 174,052 | $8.5M |
| Silverarc Capital Management, LLC | 0.87% | New | 150,908 | $7.4M |
| Jones Hill Capital LP | 1.48% | — | 140,843 | $6.9M |
| Deutsche Bank AG | 0.00% | Add +18.0% | 140,789 | $6.9M |
| Longaeva Partners L.P. | 0.32% | Add +6.8% | 136,884 | $6.7M |
| Moody Aldrich Partners LLC | 1.19% | Add +6.5% | 135,061 | $6.6M |
| Sio Capital Management, LLC | 0.94% | Add +12.2% | 132,496 | $6.5M |
| Kennedy Capital Management LLC | 0.13% | Add +159.6% | 126,366 | $6.2M |
| Wellington Management Group LLP | 0.00% | Add +43.1% | 121,225 | $5.9M |
| Kalehua Capital Management LLC | 4.11% | No change | 118,524 | $5.8M |
| Dimensional Fund Advisors LP | 0.00% | New | 113,009 | $5.5M |
| Bank of New York Mellon Corp | 0.00% | Reduce -6.4% | 106,883 | $5.2M |
| ExodusPoint Capital Management, LP | 0.05% | New | 101,354 | $5.0M |
| Bank of America Corp. | 0.00% | Reduce -28.1% | 100,091 | $4.9M |
| Invesco Ltd. | 0.00% | Reduce -32.2% | 97,042 | $4.8M |
| Nuveen, LLC | 0.00% | Add +0.7% | 86,938 | $4.3M |
| Barclays PLC | 0.00% | Reduce -50.5% | 85,737 | $4.2M |
| Ensign Peak Advisors, Inc | 0.01% | New | 79,380 | $3.9M |
| HighVista Strategies LLC | 1.07% | New | 78,911 | $3.9M |
| TD Asset Management Inc | 0.00% | Reduce -5.3% | 75,696 | $3.7M |
| Aberdeen Group plc | 0.01% | No change | 75,680 | $3.7M |
| B Group, Inc. | 2.73% | No change | 75,000 | $3.7M |
| American Century Companies Inc. | 0.00% | Add +30.3% | 74,386 | $3.6M |
| Manufacturers Life Insurance Company, The | 0.00% | Add +18.3% | 72,563 | $3.6M |
| Secure Asset Management, LLC | 0.56% | Reduce -11.3% | 72,422 | $3.6M |
| Boothbay Fund Management, LLC | 0.08% | New | 67,481 | $3.3M |
| Voya Investment Management LLC | 0.00% | Add +56.7% | 66,600 | $3.3M |
| Superstring Capital Management LP | 2.23% | New | 63,591 | $3.1M |
| Palo Alto Investors LP | 0.45% | No change | 59,985 | $2.9M |
| Informed Momentum Co LLC | 0.34% | New | 59,946 | $2.9M |
| Rhumbline Advisers | 0.00% | Add +13.0% | 46,356 | $2.3M |
| Russell Investments Group, Ltd. | 0.00% | Add +1394.9% | 45,459 | $2.2M |
| Fred Alger Management, LLC | 0.01% | New | 43,841 | $2.2M |
| Swiss National Bank | 0.00% | No change | 43,000 | $2.1M |
| Martingale Asset Management L P | 0.05% | New | 42,732 | $2.1M |
| Voleon Capital Management LP | 0.04% | Add +72.2% | 40,539 | $2.0M |
| Rafferty Asset Management, LLC | 0.01% | Add +5.2% | 40,487 | $2.0M |
| Alps Advisors Inc. | 0.01% | Reduce -0.9% | 39,404 | $1.9M |
| Y-Intercept (Hong Kong) Ltd | 0.03% | New | 36,912 | $1.8M |
| Schroder Investment Management Group | 0.00% | No change | 29,184 | $1.3M |
| Alliancebernstein L.P. | 0.00% | Add +6.9% | 40,400 | $1.2M |
| Squarepoint Ops LLC | 0.00% | Reduce -11.6% | 24,463 | $1.2M |
| Envestnet Asset Management Inc. | 0.00% | Add +55.2% | 23,667 | $1.2M |
| Sei Investments Co. | 0.00% | Add +136.1% | 22,840 | $1.1M |
| Glenmede Trust Co. NA | 0.01% | Add +11.7% | 21,772 | $1.1M |
| California State Teachers Retirement System | 0.00% | Reduce -1.3% | 21,370 | $1.0M |
| Vanguard Global Advisers, LLC | 0.00% | — | 21,370 | $1.0M |
| MetLife Investment Management, LLC | 0.01% | Add +0.0% | 21,363 | $1.0M |
| JPMorgan Chase & Co. | 0.00% | Add +10.8% | 22,620 | $1.0M |
| Susquehanna International Group, LLP | 0.00% | Add +142.2% | 20,984 | $1.0M |
| ADAR1 Capital Management, LLC | 0.06% | No change | 20,840 | $1.0M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.0% | 20,964 | $1.0M |
| XTX Topco Ltd | 0.02% | New | 20,180 | $990K |
| Two Sigma Investments, LP | 0.00% | Reduce -32.2% | 19,364 | $950K |
| Profund Advisors LLC | 0.03% | Add +25.4% | 18,336 | $899K |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 0.02% | Add +18.3% | 18,229 | $894K |
| State of Wisconsin Investment Board | 0.00% | Reduce -21.2% | 18,099 | $888K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +18.7% | 16,902 | $829K |
"% of holder's portfolio" is ORKA's weight in each manager's 13F, not the share of Oruka Therapeutics Inc. the manager owns.