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, Q3 2025
Institutional positions in Cytokinetics Inc as of Sep 30, 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
- 381
- +76 vs. Q2 2025
- Shares held
- 140.9M
- +4.52M (+3.3%) vs. Q2 2025
- Total value
- $7.75B
- +$3.24B (+71.8%) vs. Q2 2025
- New holders
- 101
- 126 more added
- Sold out
- 25
- 102 more reduced
7 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Cytokinetics Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Great Lakes Advisors, LLC | 24,873 | $1.37M | 0.01% | −7,856−24.0% | Reduced |
| Moore Capital Management, LP | 25,000 | $1.37M | 0.03% | −10,000−28.6% | Reduced |
| Federated Hermes, Inc. | 25,794 | $1.42M | 0.00% | +1,405+5.8% | Added |
| Profund Advisors LLC | 25,930 | $1.43M | 0.05% | −12,518−32.6% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 26,671 | $1.47M | 0.02% | +50.0% | Added |
| Thrivent Financial for Lutherans | 27,491 | $1.51M | 0.00% | −628−2.2% | Reduced |
| Teacher Retirement System of Texas | 27,846 | $1.53M | 0.01% | −2,668−8.7% | Reduced |
| Quantinno Capital Management LP | 28,437 | $1.56M | 0.00% | +28,437 | New |
| State Board of Administration of Florida Retirement System | 28,486 | $1.57M | 0.00% | 00.0% | Unchanged |
| State of Michigan Retirement System | 28,500 | $1.57M | 0.01% | −200−0.7% | Reduced |
| ProShare Advisors LLC | 29,330 | $1.61M | 0.00% | −4,380−13.0% | Reduced |
| Birchview Capital, LP | 30,000 | $1.65M | 1.24% | +20,000+200.0% | Added |
| Knott David M Jr | 30,000 | $1.65M | 0.69% | +30,000 | New |
| Caption Management, LLC | 30,357 | $1.67M | 0.10% | +11,357+59.8% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 30,504 | $1.68M | 0.01% | +30,504 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 30,707 | $1.69M | 0.00% | +5,536+22.0% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 30,710 | $1.69M | 0.01% | +26+0.1% | Added |
| Guggenheim Capital LLC | 30,882 | $1.70M | 0.01% | −7,030−18.5% | Reduced |
| Ameritas Investment Partners, Inc. | 32,190 | $1.77M | 0.05% | −2,957−8.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 32,255 | $1.77M | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 32,593 | $1.79M | 0.01% | +6,362+24.3% | Added |
| Louisiana State Employees Retirement System | 33,300 | $1.83M | 0.03% | −300−0.9% | Reduced |
| Comerica Bank | 33,356 | $1.83M | 0.01% | −2,904−8.0% | Reduced |
| Arizona State Retirement System | 33,546 | $1.84M | 0.01% | +527+1.6% | Added |
| Gabelli Funds LLC | 34,759 | $1.91M | 0.01% | +26,349+313.3% | Added |
| Gabelli & Co Investment Advisers, Inc. | 37,478 | $2.06M | 0.33% | +37,478 | New |
| Checkpoint Capital L.P. | 37,587 | $2.07M | 0.69% | +37,587 | New |
| Adage Capital Partners GP, L.L.C. | 38,000 | $2.09M | 0.00% | +38,000 | New |
| Pathstone Holdings, LLC | 38,278 | $2.10M | 0.01% | +13,600+55.1% | Added |
| Yousif Capital Management, LLC | 38,639 | $2.12M | 0.02% | −2,538−6.2% | Reduced |
| Intech Investment Management LLC | 38,659 | $2.12M | 0.02% | −14,564−27.4% | Reduced |
| Philadelphia Financial Management of San Francisco, LLC | 39,523 | $2.17M | 0.44% | +39,523 | New |
| Simplex Trading, LLC | 41,004 | $2.25M | 0.05% | +41,004 | New |
| Prelude Capital Management, LLC | 41,477 | $2.28M | 0.18% | +5,976+16.8% | Added |
| Raymond James Financial Inc | 42,208 | $2.32M | 0.00% | +36,759+674.6% | Added |
| Prudential Financial Inc | 43,326 | $2.38M | 0.00% | +17,105+65.2% | Added |
| Stifel Financial Corp | 44,626 | $2.45M | 0.00% | +26,880+151.5% | Added |
| Lighthouse Investment Partners, LLC | 47,000 | $2.58M | 0.09% | +12,000+34.3% | Added |
| New York State Common Retirement Fund | 47,875 | $2.63M | 0.00% | +9,308+24.1% | Added |
| State of Tennessee, Treasury Department | 48,461 | $2.66M | 0.01% | +1,145+2.4% | Added |
| Lisanti Capital Growth, LLC | 49,070 | $2.70M | 0.66% | +49,070 | New |
| Janus Henderson Group PLC | 49,564 | $2.73M | 0.00% | 00.0% | Unchanged |
| Zimmer Partners, LP | 50,000 | $2.75M | 0.07% | −26,500−34.6% | Reduced |
| Dimensional Fund Advisors LP | 51,259 | $2.82M | 0.00% | +19,173+59.8% | Added |
| SG Americas Securities, LLC | 51,397 | $2.83M | 0.01% | +43,349+538.6% | Added |
| Amalgamated Bank | 52,413 | $2.88M | 0.02% | +74+0.1% | Added |
| Algert Global LLC | 52,460 | $2.88M | 0.05% | −7,930−13.1% | Reduced |
| Advisor Group Holdings, Inc. | 54,733 | $2.91M | 0.00% | +48,820+825.6% | Added |
| Granahan Investment Management Inc | 53,550 | $2.94M | 0.12% | +53,550 | New |
| Voya Investment Management LLC | 54,644 | $3.00M | 0.00% | +13,882+34.1% | Added |
| Fred Alger Management, LLC | 54,828 | $3.01M | 0.01% | +54,828 | New |
| Mutual of America Capital Management LLC | 55,261 | $3.04M | 0.03% | −4,130−7.0% | Reduced |
| DekaBank Deutsche Girozentrale | 57,500 | $3.07M | 0.01% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 55,902 | $3.07M | 0.01% | −5,881−9.5% | Reduced |
| Alps Advisors Inc | 56,619 | $3.11M | 0.02% | −7,773−12.1% | Reduced |
| Ironwood Investment Management LLC | 57,332 | $3.15M | 1.37% | −184−0.3% | Reduced |
| Envestnet Asset Management Inc | 59,068 | $3.25M | 0.00% | +29,601+100.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 59,492 | $3.26M | 0.01% | −12,818−17.7% | Reduced |
| Resolute Capital Asset Partners LLC | 60,000 | $3.30M | 1.72% | +60,000 | New |
| Teachers Retirement System of the State of Kentucky | 60,789 | $3.34M | 0.03% | +2,149+3.7% | Added |
| Nicholas Investment Partners, LP | 62,117 | $3.41M | 0.26% | +62,117 | New |
| Weiss Asset Management LP | 64,163 | $3.53M | 0.05% | +64,163 | New |
| Citigroup Inc | 64,898 | $3.57M | 0.00% | −79,939−55.2% | Reduced |
| Royal Bank of Canada | 68,193 | $3.75M | 0.00% | +22,302+48.6% | Added |
| SEI Investments Co | 68,772 | $3.78M | 0.00% | +12,367+21.9% | Added |
| EFG Asset Management (North America) Corp. | 73,010 | $4.01M | 0.52% | −3,247−4.3% | Reduced |
| State of Wisconsin Investment Board | 74,925 | $4.12M | 0.01% | −5,039−6.3% | Reduced |
| Erste Asset Management GmbH | 76,950 | $4.15M | 0.04% | 00.0% | Unchanged |
| Great West Life Assurance Co | 78,544 | $4.23M | 0.01% | 00.0% | Unchanged |
| Moody Aldrich Partners LLC | 82,460 | $4.53M | 0.86% | +82,460 | New |
| Thornburg Investment Management Inc | 84,719 | $4.66M | 0.06% | +11,840+16.2% | Added |
| Creative Planning | 87,310 | $4.80M | 0.00% | +39,248+81.7% | Added |
| Boothbay Fund Management, LLC | 91,816 | $5.05M | 0.13% | +10,020+12.2% | Added |
| Wells Fargo & Company | 97,460 | $5.36M | 0.00% | +2,110+2.2% | Added |
| Tang Capital Management LLC | 100,000 | $5.50M | 0.21% | 00.0% | Unchanged |
| Monashee Investment Management LLC | 100,000 | $5.50M | 2.74% | +100,000 | New |
| Royce & Associates LP | 100,083 | $5.50M | 0.05% | +100,083 | New |
| Rafferty Asset Management, LLC | 104,108 | $5.72M | 0.02% | −67,473−39.3% | Reduced |
| Squarepoint Ops LLC | 105,180 | $5.78M | 0.01% | +86,782+471.7% | Added |
| Cinctive Capital Management LP | 105,641 | $5.81M | 0.29% | +105,641 | New |
| Nomura Holdings Inc | 107,253 | $5.89M | 0.03% | +83,943+360.1% | Added |
| California State Teachers Retirement System | 107,448 | $5.91M | 0.01% | +3,813+3.7% | Added |
| Macquarie Group Ltd | 110,260 | $6.06M | 0.01% | +26,388+31.5% | Added |
| New York State Teachers Retirement System | 114,500 | $6.29M | 0.01% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 119,890 | $6.59M | 0.01% | −31,951−21.0% | Reduced |
| Monaco Asset Management SAM | 120,000 | $6.60M | 2.46% | +77,500+182.4% | Added |
| MetLife Investment Management | 127,590 | $7.01M | 0.03% | −4,364−3.3% | Reduced |
| HighVista Strategies LLC | 132,930 | $7.31M | 1.79% | +64,278+93.6% | Added |
| Aquatic Capital Management LLC | 135,869 | $7.47M | 0.14% | +130,372+2,371.7% | Added |
| Exome Asset Management LLC | 142,417 | $7.83M | 5.17% | +26,600+23.0% | Added |
| Readystate Asset Management LP | 142,482 | $7.83M | 0.38% | +10,264+7.8% | Added |
| Retirement Systems of Alabama | 144,672 | $7.95M | 0.03% | −1,295−0.9% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 149,957 | $8.24M | 0.03% | +110,568+280.7% | Added |
| Great Point Partners LLC | 150,000 | $8.24M | 3.44% | 00.0% | Unchanged |
| Nantahala Capital Management, LLC | 150,000 | $8.24M | 0.51% | +150,000 | New |
| California Public Employees Retirement System | 150,399 | $8.27M | 0.00% | +7,797+5.5% | Added |
| Peregrine Capital Management LLC | 154,449 | $8.49M | 0.26% | −4,079−2.6% | Reduced |
| Invesco Ltd. | 157,249 | $8.64M | 0.00% | +20,937+15.4% | Added |
| Sphera Funds Management Ltd. | 161,517 | $8.88M | 2.11% | −165,201−50.6% | Reduced |
| Deutsche Bank AG | 165,564 | $9.10M | 0.00% | +21,751+15.1% | Added |