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.
13F holders, Q1 2026
Institutional positions in Oruka Therapeutics, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 184
- +43 vs. Q4 2025
- Shares held
- 52.0M
- +1.62M (+3.2%) vs. Q4 2025
- Total value
- $2.55B
- +$1.02B (+67.0%) vs. Q4 2025
- New holders
- 63
- 64 more added
- Sold out
- 20
- 31 more reduced
2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ORKA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 255 | $7.05B |
| Q1 2026 | 184 | $2.55B |
| Q4 2025 | 143 | $1.60B |
| Q3 2025 | 105 | $875.8M |
| Q2 2025 | 81 | $386.0M |
| Q1 2025 | 71 | $326.1M |
| Q4 2024 | 66 | $606.6M |
| Q3 2024 | 42 | $604.2M |
| Q2 2024 | 32 | $49.4M |
| Q1 2024 | 23 | $12.7M |
| Q4 2023 | 25 | $12.7M |
| Q3 2023 | 21 | $6.55M |
| Q2 2023 | 23 | $5.75M |
| Q1 2023 | 26 | $5.02M |
| Q4 2022 | 22 | $6.19M |
| Q3 2022 | 25 | $4.58M |
| Q2 2022 | 24 | $4.17M |
| Q1 2022 | 22 | $2.60M |
| Q4 2021 | 21 | $2.41M |
| Q3 2021 | 19 | $4.53M |
| Q2 2021 | 17 | $4.16M |
| Q1 2021 | 17 | $3.20M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Oruka Therapeutics, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 7,431,403 | $364.5M | 0.02% | +170,019+2.3% | Added |
| VR Adviser, LLC | 4,148,428 | $203.5M | 7.60% | 00.0% | Unchanged |
| Fairmount Funds Management LLC | 3,705,262 | $181.7M | 13.13% | 00.0% | Unchanged |
| BlackRock, Inc. | 3,527,087 | $173.0M | 0.00% | −12,328−0.3% | Reduced |
| Viking Global Investors LPSuperinvestorViking Global Investors | 2,666,690 | $130.8M | 0.37% | 00.0% | Unchanged |
| Paradigm Biocapital Advisors LP | 2,320,316 | $113.8M | 2.33% | +610,000+35.7% | Added |
| RTW Investments, LP | 2,058,148 | $101.0M | 1.00% | 00.0% | Unchanged |
| Deep Track Capital, LP | 2,034,203 | $99.8M | 2.06% | −127,307−5.9% | Reduced |
| Vanguard Capital Management LLC | 1,859,631 | $91.2M | 0.00% | +1,859,631 | New |
| State Street Corp | 1,613,461 | $79.1M | 0.00% | +229,614+16.6% | Added |
| Remedium Capital Partners, LLC | 1,565,661 | $76.8M | 27.31% | +13,247+0.9% | Added |
| Perceptive Advisors LLC | 1,395,501 | $68.4M | 1.35% | −81,000−5.5% | Reduced |
| Polar Capital Holdings Plc | 1,047,693 | $51.4M | 0.22% | +69,405+7.1% | Added |
| Citadel Advisors LLC | 1,007,537 | $49.4M | 0.04% | +281,419+38.8% | Added |
| Franklin Resources Inc | 1,004,056 | $49.2M | 0.01% | +65,635+7.0% | Added |
| Geode Capital Management, LLC | 954,867 | $46.8M | 0.00% | +12,360+1.3% | Added |
| Mercer Global Advisors Inc | 802,470 | $39.4M | 0.06% | +57,193+7.7% | Added |
| Avidity Partners Management LP | 760,424 | $37.3M | 7.55% | +100,000+15.1% | Added |
| Price T Rowe Associates Inc | 727,449 | $35.7M | 0.00% | +78,103+12.0% | Added |
| Woodline Partners LP | 574,882 | $28.2M | 0.11% | +329+0.1% | Added |
| Cormorant Asset Management, LP | 533,340 | $26.2M | 1.32% | 00.0% | Unchanged |
| Bellevue Group AG | 507,008 | $24.9M | 0.59% | +507,008 | New |
| Affinity Asset Advisors, LLC | 499,673 | $24.5M | 1.44% | −302,669−37.7% | Reduced |
| Synergy Financial Management, LLC | 476,196 | $23.4M | 2.48% | +17,250+3.8% | Added |
| Sr One Capital Management, LP | 430,330 | $21.1M | 2.31% | 00.0% | Unchanged |
| Candriam Luxembourg S.C.A. | 411,006 | $20.2M | 0.10% | +10,497+2.6% | Added |
| Vanguard Portfolio Management LLC | 350,892 | $17.2M | 0.00% | +350,892 | New |
| Charles Schwab Investment Management Inc | 321,949 | $15.8M | 0.00% | −7,547−2.3% | Reduced |
| Westfield Capital Management Co LP | 313,130 | $15.4M | 0.06% | +313,130 | New |
| Northern Trust Corp | 299,044 | $14.7M | 0.00% | +18,140+6.5% | Added |
| Vanguard Fiduciary Trust Co | 257,071 | $12.6M | 0.00% | +257,071 | New |
| Goldman Sachs Group Inc | 246,711 | $12.1M | 0.00% | +153,716+165.3% | Added |
| Ikarian Capital, LLC | 242,021 | $11.9M | 1.70% | +242,021 | New |
| Atika Capital Management LLC | 229,900 | $11.3M | 1.78% | +229,900 | New |
| UBS Group AG | 212,271 | $10.4M | 0.00% | −58,742−21.7% | Reduced |
| Cable Car Capital LLC | 200,000 | $9.81M | 3.39% | −200,000−50.0% | Reduced |
| Adage Capital Partners GP, L.L.C. | 190,030 | $9.32M | 0.01% | +190,030 | New |
| Holocene Advisors, LP | 185,513 | $9.10M | 0.02% | +185,513 | New |
| Alyeska Investment Group, L.P. | 184,863 | $9.07M | 0.03% | +84,863+84.9% | Added |
| Great Point Partners LLC | 183,330 | $8.99M | 2.20% | 00.0% | Unchanged |
| Jennison Associates LLC | 176,680 | $8.67M | 0.01% | +176,680 | New |
| Morgan Stanley | 175,454 | $8.61M | 0.00% | +53,256+43.6% | Added |
| PFM Health Sciences, LP | 174,052 | $8.54M | 0.90% | +174,052 | New |
| Silverarc Capital Management, LLC | 150,908 | $7.40M | 0.87% | +150,908 | New |
| Jones Hill Capital LP | 140,843 | $6.91M | 1.48% | +140,843 | New |
| Deutsche Bank AG | 140,789 | $6.91M | 0.00% | +21,460+18.0% | Added |
| Longaeva Partners L.P. | 136,884 | $6.71M | 0.32% | +8,774+6.8% | Added |
| Moody Aldrich Partners LLC | 135,061 | $6.62M | 1.19% | +8,249+6.5% | Added |
| Sio Capital Management, LLC | 132,496 | $6.50M | 0.94% | +14,370+12.2% | Added |
| Kennedy Capital Management, Inc. | 126,366 | $6.20M | 0.13% | +77,680+159.6% | Added |
| Wellington Management Group LLP | 121,225 | $5.95M | 0.00% | +36,509+43.1% | Added |
| Kalehua Capital Management LLC | 118,524 | $5.81M | 4.11% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 113,009 | $5.54M | 0.00% | +113,009 | New |
| Bank of New York Mellon Corp | 106,883 | $5.24M | 0.00% | −7,290−6.4% | Reduced |
| ExodusPoint Capital Management, LP | 101,354 | $4.97M | 0.05% | +101,354 | New |
| Bank of America Corp | 100,091 | $4.91M | 0.00% | −39,181−28.1% | Reduced |
| Invesco Ltd. | 97,042 | $4.76M | 0.00% | −46,079−32.2% | Reduced |
| Nuveen, LLC | 86,938 | $4.26M | 0.00% | +591+0.7% | Added |
| Barclays PLC | 85,737 | $4.21M | 0.00% | −87,592−50.5% | Reduced |
| Ensign Peak Advisors, Inc | 79,380 | $3.89M | 0.01% | +79,380 | New |
| HighVista Strategies LLC | 78,911 | $3.87M | 1.07% | +78,911 | New |
| TD Asset Management Inc | 75,696 | $3.71M | 0.00% | −4,200−5.3% | Reduced |
| Standard Life Aberdeen plc | 75,680 | $3.71M | 0.01% | 00.0% | Unchanged |
| B Group, Inc. | 75,000 | $3.68M | 2.73% | 00.0% | Unchanged |
| American Century Companies Inc | 74,386 | $3.65M | 0.00% | +17,306+30.3% | Added |
| Manufacturers Life Insurance Company, The | 72,563 | $3.56M | 0.00% | +11,205+18.3% | Added |
| Secure Asset Management, LLC | 72,422 | $3.55M | 0.56% | −9,242−11.3% | Reduced |
| Boothbay Fund Management, LLC | 67,481 | $3.31M | 0.08% | +67,481 | New |
| Voya Investment Management LLC | 66,600 | $3.27M | 0.00% | +24,097+56.7% | Added |
| Superstring Capital Management LP | 63,591 | $3.12M | 2.23% | +63,591 | New |
| Palo Alto Investors LP | 59,985 | $2.94M | 0.45% | 00.0% | Unchanged |
| EAM Investors, LLC | 59,946 | $2.94M | 0.34% | +59,946 | New |
| Rhumbline Advisers | 46,356 | $2.27M | 0.00% | +5,339+13.0% | Added |
| Russell Investments Group, Ltd. | 45,459 | $2.23M | 0.00% | +42,418+1,394.9% | Added |
| Fred Alger Management, LLC | 43,841 | $2.15M | 0.01% | +43,841 | New |
| Swiss National Bank | 43,000 | $2.11M | 0.00% | 00.0% | Unchanged |
| Martingale Asset Management L P | 42,732 | $2.10M | 0.05% | +42,732 | New |
| Voleon Capital Management LP | 40,539 | $1.99M | 0.04% | +16,991+72.2% | Added |
| Rafferty Asset Management, LLC | 40,487 | $1.99M | 0.01% | +2,002+5.2% | Added |
| Alps Advisors Inc | 39,404 | $1.93M | 0.01% | −347−0.9% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 36,912 | $1.81M | 0.03% | +36,912 | New |
| Schroder Investment Management Group | 29,184 | $1.33M | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 40,400 | $1.22M | 0.00% | +2,600+6.9% | Added |
| Squarepoint Ops LLC | 24,463 | $1.20M | 0.00% | −3,208−11.6% | Reduced |
| Envestnet Asset Management Inc | 23,667 | $1.16M | 0.00% | +8,420+55.2% | Added |
| SEI Investments Co | 22,840 | $1.12M | 0.00% | +13,164+136.0% | Added |
| Glenmede Trust Co NA | 21,772 | $1.07M | 0.01% | +2,287+11.7% | Added |
| California State Teachers Retirement System | 21,370 | $1.05M | 0.00% | −288−1.3% | Reduced |
| Vanguard Global Advisers, LLC | 21,370 | $1.05M | 0.00% | +21,370 | New |
| MetLife Investment Management | 21,363 | $1.05M | 0.01% | +10.0% | Added |
| JPMorgan Chase & Co | 22,620 | $1.03M | 0.00% | +2,203+10.8% | Added |
| Susquehanna International Group, LLP | 20,984 | $1.03M | 0.00% | +12,319+142.2% | Added |
| ADAR1 Capital Management, LLC | 20,840 | $1.02M | 0.06% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 20,964 | $1.02M | 0.00% | +812+4.0% | Added |
| XTX Topco Ltd | 20,180 | $989.8K | 0.02% | +20,180 | New |
| Two Sigma Investments, LP | 19,364 | $949.8K | 0.00% | −9,202−32.2% | Reduced |
| Profund Advisors LLC | 18,336 | $899.4K | 0.03% | +3,713+25.4% | Added |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 18,229 | $894.1K | 0.02% | +2,823+18.3% | Added |
| State of Wisconsin Investment Board | 18,099 | $887.8K | 0.00% | −4,869−21.2% | Reduced |
| UBS Asset Management Americas Inc | 16,902 | $829.0K | 0.00% | +2,658+18.7% | Added |