Cytokinetics Inc
CYTK- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001061983
In the last 90 days, Cytokinetics Inc insiders filed 0 open-market purchases and 16 sales; 482 institutions reported holding it in 13F filings for Q2 2026, worth $13.7B in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Cytokinetics Inc as of Dec 31, 2025. 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
- 431
- +58 vs. Q3 2025
- Shares held
- 139.5M
- −1.24M (−0.9%) vs. Q3 2025
- Total value
- $8.87B
- +$1.13B (+14.6%) vs. Q3 2025
- New holders
- 106
- 143 more added
- Sold out
- 48
- 134 more reduced
8 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CYTK 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 | 482 | $13.7B |
| Q1 2026 | 441 | $9.63B |
| Q4 2025 | 431 | $8.87B |
| Q3 2025 | 381 | $7.75B |
| Q2 2025 | 312 | $4.55B |
| Q1 2025 | 356 | $5.48B |
| Q4 2024 | 347 | $6.18B |
| Q3 2024 | 348 | $7.20B |
| Q2 2024 | 344 | $7.34B |
| Q1 2024 | 390 | $8.26B |
| Q4 2023 | 347 | $9.54B |
| Q3 2023 | 251 | $3.22B |
| Q2 2023 | 253 | $3.55B |
| Q1 2023 | 263 | $3.83B |
| Q4 2022 | 278 | $4.88B |
| Q3 2022 | 276 | $5.08B |
| Q2 2022 | 263 | $4.16B |
| Q1 2022 | 240 | $3.52B |
| Q4 2021 | 250 | $4.16B |
| Q3 2021 | 211 | $3.22B |
| Q2 2021 | 191 | $1.50B |
| Q1 2021 | 193 | $1.74B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Cytokinetics Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Affinity Asset Advisors, LLC | 800,000 | $50.8M | 3.65% | +450,000+128.6% | Added |
| Norges Bank | 807,070 | $51.3M | 0.01% | +807,070 | New |
| Fisher Asset Management, LLC | 822,885 | $52.3M | 0.02% | +61,298+8.0% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 827,863 | $52.6M | 0.06% | +42,863+5.5% | Added |
| Bank of New York Mellon Corp | 854,309 | $54.3M | 0.01% | −14,922−1.7% | Reduced |
| Frazier Life Sciences Management, L.P. | 934,642 | $59.4M | 1.60% | +44,197+5.0% | Added |
| Principal Financial Group Inc | 976,892 | $62.1M | 0.03% | −197,556−16.8% | Reduced |
| Royalty Pharma Sub-Manager, LLC | 980,392 | $62.3M | 36.36% | +980,392 | New |
| Armistice Capital, LLC | 992,766 | $63.1M | 1.54% | −204,102−17.1% | Reduced |
| UBS Group AG | 1,131,456 | $71.9M | 0.01% | −671,795−37.3% | Reduced |
| Citadel Advisors LLC | 1,162,937 | $73.9M | 0.05% | −223,128−16.1% | Reduced |
| Capital International Investors | 1,178,780 | $74.9M | 0.01% | 00.0% | Unchanged |
| Morgan Stanley | 1,265,301 | $80.4M | 0.00% | −255,885−16.8% | Reduced |
| Northern Trust Corp | 1,380,787 | $87.7M | 0.01% | −26,045−1.9% | Reduced |
| Charles Schwab Investment Management Inc | 1,383,437 | $87.9M | 0.01% | +9,554+0.7% | Added |
| Integral Health Asset Management, LLC | 1,400,000 | $89.0M | 4.51% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,412,797 | $89.8M | 0.01% | −130,060−8.4% | Reduced |
| Woodline Partners LP | 1,648,428 | $104.7M | 0.41% | +7030.0% | Added |
| Price T Rowe Associates Inc | 1,930,119 | $122.6M | 0.01% | −436,729−18.5% | Reduced |
| Goldman Sachs Group Inc | 2,371,679 | $150.7M | 0.02% | +736,956+45.1% | Added |
| Polar Capital Holdings Plc | 2,422,612 | $153.9M | 0.70% | −360,318−12.9% | Reduced |
| RTW Investments, LP | 2,721,158 | $172.9M | 1.73% | 00.0% | Unchanged |
| Bank of America Corp | 2,941,152 | $186.9M | 0.01% | −120,644−3.9% | Reduced |
| Geode Capital Management, LLC | 3,056,017 | $194.2M | 0.01% | +15,815+0.5% | Added |
| Deep Track Capital, LP | 3,336,998 | $212.0M | 4.84% | −963,002−22.4% | Reduced |
| State Street Corp | 5,825,295 | $370.1M | 0.01% | +207,961+3.7% | Added |
| Wellington Management Group LLP | 7,937,063 | $504.3M | 0.09% | +528,502+7.1% | Added |
| Vanguard Group Inc | 12,048,131 | $765.5M | 0.01% | +191,336+1.6% | Added |
| FMR LLC | 12,807,752 | $813.8M | 0.04% | −283,895−2.2% | Reduced |
| BlackRock, Inc. | 16,395,123 | $1.04B | 0.02% | +869,376+5.6% | Added |
| T. Rowe Price Investment Management, Inc. | 17,716,372 | $1.13B | 0.71% | −1,364,124−7.1% | Reduced |
| Vestal Point Capital, LP | 0 | $0 | 0.00% | −725,000−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −471,482−100.0% | Sold out |
| Pentwater Capital Management LP | 0 | $0 | 0.00% | −300,000−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −211,000−100.0% | Sold out |
| Schroder Investment Management Group | 0 | $0 | 0.00% | −186,883−100.0% | Sold out |
| Great Point Partners LLC | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| Nantahala Capital Management, LLC | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| Monaco Asset Management SAM | 0 | $0 | 0.00% | −120,000−100.0% | Sold out |
| Macquarie Group Ltd | 0 | $0 | 0.00% | −110,260−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −105,180−100.0% | Sold out |
| Tang Capital Management LLC | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Weiss Asset Management LP | 0 | $0 | 0.00% | −64,163−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −56,619−100.0% | Sold out |
| Zimmer Partners, LP | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −41,004−100.0% | Sold out |
| Philadelphia Financial Management of San Francisco, LLC | 0 | $0 | 0.00% | −39,523−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −38,000−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −30,504−100.0% | Sold out |
| Bamco Inc | 0 | $0 | 0.00% | −24,500−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −24,418−100.0% | Sold out |
| Sanders Morris Harris LLC | 0 | $0 | 0.00% | −21,505−100.0% | Sold out |
| NJ State Employees Deferred Compensation Plan | 0 | $0 | 0.00% | −15,500−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −12,094−100.0% | Sold out |
| Bayforest Capital Ltd | 0 | $0 | 0.00% | −11,747−100.0% | Sold out |
| DLD Asset Management, LP | 0 | $0 | 0.00% | −11,000−100.0% | Sold out |
| Concentric Capital Strategies, LP | 0 | $0 | 0.00% | −8,788−100.0% | Sold out |
| Groupama Asset Managment | 0 | $0 | 0.00% | – | Sold out |
| Fifth Lane Capital, LP | 0 | $0 | 0.00% | −8,000−100.0% | Sold out |
| Clearline Capital LP | 0 | $0 | 0.00% | −6,817−100.0% | Sold out |
| ISAM Funds (UK) Ltd | 0 | $0 | 0.00% | −5,227−100.0% | Sold out |
| PharVision Advisers, LLC | 0 | $0 | 0.00% | −3,765−100.0% | Sold out |
| Massar Capital Management, LP | 0 | $0 | 0.00% | −3,740−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −3,719−100.0% | Sold out |
| Wexford Capital LP | 0 | $0 | 0.00% | −1,449−100.0% | Sold out |
| BIT Capital GmbH | 0 | $0 | 0.00% | −1,254−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −811−100.0% | Sold out |
| Manchester Capital Management LLC | 0 | $0 | 0.00% | −720−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −574−100.0% | Sold out |
| Rise Advisors, LLC | 0 | $0 | 0.00% | −476−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −375−100.0% | Sold out |
| Ci Investments Inc. | 0 | $0 | 0.00% | −194−100.0% | Sold out |
| Goodman Advisory Group, LLC | 0 | $0 | 0.00% | −52−100.0% | Sold out |
| Washington Trust Advisors, Inc. | 0 | $0 | 0.00% | −49−100.0% | Sold out |
| Principal Securities, Inc. | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Vermillion Wealth Management, Inc. | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Montag A & Associates Inc | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Ronald Blue Trust, Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Strategic Advocates LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| EFG Asset Management (North America) Corp. | – | – | – | – | Not filed |
| HAP Trading, LLC | – | – | – | – | Not filed |
| Wolverine Trading, LLC | – | – | – | – | Not filed |
| CIBC Bancorp USA Inc. | – | – | – | – | Not filed |
| Point72 Asia (Singapore) Pte. Ltd. | – | – | – | – | Not filed |
| Glenmede Investment Management, LP | – | – | – | – | Not filed |
| Point72 (DIFC) Ltd | – | – | – | – | Not filed |
| Hemington Wealth Management | – | – | – | – | Not filed |