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 |
|---|---|---|---|---|---|
| New York State Teachers Retirement System | 114,500 | $7.28M | 0.01% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 111,544 | $7.09M | 0.08% | +111,544 | New |
| Peregrine Capital Management LLC | 108,062 | $6.87M | 0.21% | −46,387−30.0% | Reduced |
| California State Teachers Retirement System | 107,324 | $6.82M | 0.01% | −124−0.1% | Reduced |
| Citigroup Inc | 102,101 | $6.49M | 0.00% | +37,203+57.3% | Added |
| Brevan Howard Capital Management LP | 101,030 | $6.42M | 0.12% | +91,056+912.9% | Added |
| Boxer Capital Management, LLC | 100,000 | $6.35M | 1.39% | −100,000−50.0% | Reduced |
| Impax Asset Management Group plc | 100,000 | $6.35M | 0.04% | −75,000−42.9% | Reduced |
| Deeter Investments LLP | 98,739 | $6.27M | 1.35% | +98,739 | New |
| Rafferty Asset Management, LLC | 98,541 | $6.26M | 0.02% | −5,567−5.3% | Reduced |
| Aquatic Capital Management LLC | 97,497 | $6.19M | 0.18% | −38,372−28.2% | Reduced |
| Creative Planning | 96,939 | $6.16M | 0.00% | +9,629+11.0% | Added |
| Campbell & CO Investment Adviser LLC | 96,484 | $6.13M | 0.29% | +96,484 | New |
| Mutual of America Capital Management LLC | 95,230 | $6.05M | 0.06% | +39,969+72.3% | Added |
| Sphera Funds Management Ltd. | 91,717 | $5.83M | 1.22% | −69,800−43.2% | Reduced |
| XTX Topco Ltd | 90,579 | $5.76M | 0.15% | +86,589+2,170.2% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 88,684 | $5.64M | 0.02% | −61,273−40.9% | Reduced |
| Thornburg Investment Management Inc | 82,398 | $5.24M | 0.07% | −2,321−2.7% | Reduced |
| Raymond James Financial Inc | 82,395 | $5.24M | 0.00% | +40,187+95.2% | Added |
| Granahan Investment Management Inc | 82,121 | $5.22M | 0.22% | +28,571+53.4% | Added |
| Moody Aldrich Partners LLC | 78,618 | $5.00M | 0.93% | −3,842−4.7% | Reduced |
| Monashee Investment Management LLC | 75,000 | $4.77M | 2.69% | −25,000−25.0% | Reduced |
| Erste Asset Management GmbH | 76,950 | $4.75M | 0.04% | 00.0% | Unchanged |
| Lisanti Capital Growth, LLC | 74,200 | $4.71M | 1.12% | +25,130+51.2% | Added |
| Neuberger Berman Group LLC | 71,378 | $4.54M | 0.00% | +65,069+1,031.4% | Added |
| DekaBank Deutsche Girozentrale | 57,500 | $4.46M | 0.01% | 00.0% | Unchanged |
| Nicholas Investment Partners, LP | 70,240 | $4.46M | 0.33% | +8,123+13.1% | Added |
| SEI Investments Co | 70,239 | $4.46M | 0.00% | +1,467+2.1% | Added |
| State of Wisconsin Investment Board | 68,633 | $4.36M | 0.01% | −6,292−8.4% | Reduced |
| Great West Life Assurance Co | 66,203 | $4.21M | 0.01% | −12,341−15.7% | Reduced |
| Nomura Holdings Inc | 66,207 | $4.21M | 0.01% | −41,046−38.3% | Reduced |
| Voya Investment Management LLC | 65,592 | $4.17M | 0.00% | +10,948+20.0% | Added |
| Resolute Capital Asset Partners LLC | 65,000 | $4.13M | 2.00% | +5,000+8.3% | Added |
| ACT Capital Management, LLC | 64,500 | $4.10M | 3.31% | +64,500 | New |
| Teachers Retirement System of the State of Kentucky | 62,789 | $3.99M | 0.03% | +2,000+3.3% | Added |
| Envestnet Asset Management Inc | 62,733 | $3.99M | 0.00% | +3,665+6.2% | Added |
| Tyro Capital Management LLC | 60,638 | $3.85M | 1.20% | +60,638 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 59,635 | $3.78M | 0.01% | +143+0.2% | Added |
| Ironwood Investment Management LLC | 57,229 | $3.64M | 1.53% | −103−0.2% | Reduced |
| Boothbay Fund Management, LLC | 56,453 | $3.59M | 0.09% | −35,363−38.5% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 54,278 | $3.45M | 0.01% | +23,571+76.8% | Added |
| Dimensional Fund Advisors LP | 53,929 | $3.43M | 0.00% | +2,670+5.2% | Added |
| EFG International AG | 53,265 | $3.39M | 0.07% | +53,265 | New |
| Advisor Group Holdings, Inc. | 52,436 | $3.33M | 0.00% | −2,297−4.2% | Reduced |
| Algert Global LLC | 51,310 | $3.26M | 0.05% | −1,150−2.2% | Reduced |
| Amalgamated Bank | 50,630 | $3.22M | 0.02% | −1,783−3.4% | Reduced |
| Quantinno Capital Management LP | 50,437 | $3.20M | 0.01% | +22,000+77.4% | Added |
| Intech Investment Management LLC | 49,434 | $3.14M | 0.03% | +10,775+27.9% | Added |
| Stifel Financial Corp | 47,971 | $3.05M | 0.00% | +3,345+7.5% | Added |
| IMC-Chicago, LLC | 47,657 | $3.03M | 0.05% | +47,657 | New |
| Harvey Capital Management Inc | 46,810 | $2.97M | 0.63% | +25,480+119.5% | Added |
| New York State Common Retirement Fund | 46,175 | $2.93M | 0.00% | −1,700−3.6% | Reduced |
| Pathstone Holdings, LLC | 45,399 | $2.88M | 0.01% | +7,121+18.6% | Added |
| Nomura Asset Management International Inc. | 44,879 | $2.85M | 0.00% | +44,879 | New |
| Rhenman & Partners Asset Management AB | 44,375 | $2.82M | 0.26% | −210,875−82.6% | Reduced |
| Prudential Financial Inc | 42,035 | $2.67M | 0.00% | −1,291−3.0% | Reduced |
| Profund Advisors LLC | 39,642 | $2.52M | 0.08% | +13,712+52.9% | Added |
| Yousif Capital Management, LLC | 38,664 | $2.47M | 0.03% | +25+0.1% | Added |
| State of New Jersey Common Pension Fund D | 38,799 | $2.47M | 0.01% | −17,103−30.6% | Reduced |
| Quinn Opportunity Partners LLC | 38,082 | $2.42M | 0.10% | −235,579−86.1% | Reduced |
| Prelude Capital Management, LLC | 37,539 | $2.39M | 0.18% | −3,938−9.5% | Reduced |
| State of Tennessee, Treasury Department | 37,506 | $2.37M | 0.01% | −10,955−22.6% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 36,414 | $2.31M | 0.00% | +4,159+12.9% | Added |
| Rock Springs Capital Management LP | 35,853 | $2.28M | 0.12% | +35,853 | New |
| Knott David M Jr | 34,000 | $2.16M | 1.00% | +4,000+13.3% | Added |
| Louisiana State Employees Retirement System | 33,300 | $2.12M | 0.04% | 00.0% | Unchanged |
| ProShare Advisors LLC | 32,219 | $2.05M | 0.00% | +2,889+9.8% | Added |
| SG Americas Securities, LLC | 32,196 | $2.05M | 0.00% | −19,201−37.4% | Reduced |
| Ameritas Investment Partners, Inc. | 32,190 | $2.05M | 0.06% | 00.0% | Unchanged |
| Legato Capital Management LLC | 31,948 | $2.03M | 0.17% | +14,345+81.5% | Added |
| Arizona State Retirement System | 31,926 | $2.03M | 0.01% | −1,620−4.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 31,502 | $2.00M | 0.02% | −1,091−3.3% | Reduced |
| Guggenheim Capital LLC | 31,322 | $1.99M | 0.01% | +440+1.4% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 30,596 | $1.94M | 0.01% | −114−0.4% | Reduced |
| Royal Bank of Canada | 30,572 | $1.94M | 0.00% | −37,621−55.2% | Reduced |
| Mirae Asset Securities (USA) Inc. | 30,067 | $1.91M | 0.08% | +30,067 | New |
| Birchview Capital, LP | 30,000 | $1.91M | 1.12% | 00.0% | Unchanged |
| Edgestream Partners, L.P. | 29,284 | $1.86M | 0.05% | +29,284 | New |
| Comerica Bank | 28,970 | $1.84M | 0.01% | −4,386−13.1% | Reduced |
| State of Michigan Retirement System | 28,900 | $1.84M | 0.01% | +400+1.4% | Added |
| State Board of Administration of Florida Retirement System | 28,486 | $1.81M | 0.00% | 00.0% | Unchanged |
| Caption Management, LLC | 27,999 | $1.78M | 0.08% | −2,358−7.8% | Reduced |
| Pacer Advisors, Inc. | 27,783 | $1.77M | 0.00% | +12,043+76.5% | Added |
| Thrivent Financial for Lutherans | 27,532 | $1.75M | 0.00% | +41+0.1% | Added |
| Northwestern Mutual Investment Management Company, LLC | 27,355 | $1.74M | 0.02% | +684+2.6% | Added |
| Natixis Advisors, L.P. | 26,250 | $1.67M | 0.00% | +3,688+16.3% | Added |
| Great Lakes Advisors, LLC | 25,017 | $1.59M | 0.01% | +144+0.6% | Added |
| Moore Capital Management, LP | 25,000 | $1.59M | 0.03% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 24,415 | $1.55M | 0.02% | +300+1.2% | Added |
| KLP Kapitalforvaltning AS | 24,300 | $1.54M | 0.01% | +300+1.3% | Added |
| New Mexico Educational Retirement Board | 23,500 | $1.49M | 0.04% | 00.0% | Unchanged |
| HRT Financial LP | 23,376 | $1.49M | 0.00% | +23,376 | New |
| J. Safra Sarasin Holding AG | 23,370 | $1.48M | 0.02% | −1,097−4.5% | Reduced |
| JustInvest LLC | 20,725 | $1.32M | 0.01% | +2,641+14.6% | Added |
| China Universal Asset Management Co., Ltd. | 19,923 | $1.27M | 0.10% | −1,051−5.0% | Reduced |
| J. Goldman & Co LP | 17,645 | $1.12M | 0.04% | +3,140+21.6% | Added |
| Victory Capital Management Inc | 17,543 | $1.11M | 0.00% | −92−0.5% | Reduced |
| Teacher Retirement System of Texas | 16,859 | $1.07M | 0.00% | −10,987−39.5% | Reduced |
| Ethic Inc. | 16,840 | $1.07M | 0.02% | +7,318+76.9% | Added |
| Walleye Trading LLC | 16,658 | $1.06M | 0.02% | +13,634+450.9% | Added |