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 |
|---|---|---|---|---|---|
| Public Employees Retirement Association of Colorado | 10,552 | $670.0K | 0.00% | 00.0% | Unchanged |
| Fred Alger Management, LLC | 10,563 | $671.2K | 0.00% | −44,265−80.7% | Reduced |
| DnB Asset Management AS | 11,079 | $704.0K | 0.00% | +869+8.5% | Added |
| M&T Bank Corp | 11,200 | $712.0K | 0.00% | +5,188+86.3% | Added |
| Nisa Investment Advisors, LLC | 11,463 | $728.4K | 0.00% | −68−0.6% | Reduced |
| Man Group plc | 11,587 | $736.2K | 0.00% | +11,587 | New |
| Brinker Capital Investments, LLC | 11,633 | $739.2K | 0.01% | +400+3.6% | Added |
| State of Alaska, Department of Revenue | 11,945 | $758.0K | 0.01% | −835−6.5% | Reduced |
| LPL Financial LLC | 12,196 | $774.9K | 0.00% | +995+8.9% | Added |
| STRS Ohio | 12,300 | $781.5K | 0.00% | +1,700+16.0% | Added |
| Glenmede Trust Co NA | 12,770 | $811.4K | 0.00% | +12,770 | New |
| Gallagher Fiduciary Advisors, LLC | 12,973 | $824.3K | 0.03% | +1,182+10.0% | Added |
| Kennedy Capital Management, Inc. | 13,183 | $837.6K | 0.02% | +162+1.2% | Added |
| NEOS Investment Management LLC | 13,278 | $843.7K | 0.00% | −8,306−38.5% | Reduced |
| Tema ETFs LLC | 13,278 | $843.7K | 0.07% | −8,306−38.5% | Reduced |
| Bank of Montreal | 13,292 | $844.6K | 0.00% | +160+1.2% | Added |
| Gabelli & Co Investment Advisers, Inc. | 13,578 | $862.7K | 0.13% | −23,900−63.8% | Reduced |
| Harvest Management LLC | 13,600 | $864.1K | 0.32% | +1,000+7.9% | Added |
| HighTower Advisors, LLC | 13,913 | $884.0K | 0.00% | +1,113+8.7% | Added |
| Toroso Investments, LLC | 13,988 | $888.8K | 0.00% | +1,226+9.6% | Added |
| Gabelli Funds LLC | 14,209 | $902.8K | 0.01% | −20,550−59.1% | Reduced |
| Cetera Investment Advisers | 14,269 | $906.7K | 0.00% | −2,870−16.7% | Reduced |
| Ami Asset Management Corp | 14,280 | $907.4K | 0.05% | −1,003−6.6% | Reduced |
| Atria Investments LLC | 14,370 | $913.1K | 0.01% | +2,223+18.3% | Added |
| Xponance, Inc. | 14,385 | $914.0K | 0.01% | −2,328−13.9% | Reduced |
| Marks Group Wealth Management, Inc | 14,566 | $925.5K | 0.09% | +14,566 | New |
| Quadrant Capital Group LLC | 14,696 | $933.8K | 0.03% | +5,448+58.9% | Added |
| Walleye Capital LLC | 15,131 | $961.4K | 0.01% | +10,928+260.0% | Added |
| Dana Investment Advisors, Inc. | 15,376 | $977.0K | 0.03% | −2,037−11.7% | Reduced |
| Oak Ridge Investments LLC | 15,677 | $996.1K | 0.06% | −389−2.4% | Reduced |
| Vident Advisory, LLC | 16,455 | $1.05M | 0.01% | +234+1.4% | Added |
| Walleye Trading LLC | 16,658 | $1.06M | 0.02% | +13,634+450.9% | Added |
| Ethic Inc. | 16,840 | $1.07M | 0.02% | +7,318+76.9% | Added |
| Teacher Retirement System of Texas | 16,859 | $1.07M | 0.00% | −10,987−39.5% | Reduced |
| Victory Capital Management Inc | 17,543 | $1.11M | 0.00% | −92−0.5% | Reduced |
| J. Goldman & Co LP | 17,645 | $1.12M | 0.04% | +3,140+21.6% | Added |
| China Universal Asset Management Co., Ltd. | 19,923 | $1.27M | 0.10% | −1,051−5.0% | Reduced |
| JustInvest LLC | 20,725 | $1.32M | 0.01% | +2,641+14.6% | Added |
| J. Safra Sarasin Holding AG | 23,370 | $1.48M | 0.02% | −1,097−4.5% | Reduced |
| HRT Financial LP | 23,376 | $1.49M | 0.00% | +23,376 | New |
| New Mexico Educational Retirement Board | 23,500 | $1.49M | 0.04% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 24,300 | $1.54M | 0.01% | +300+1.3% | Added |
| Oregon Public Employees Retirement Fund | 24,415 | $1.55M | 0.02% | +300+1.2% | Added |
| Moore Capital Management, LP | 25,000 | $1.59M | 0.03% | 00.0% | Unchanged |
| Great Lakes Advisors, LLC | 25,017 | $1.59M | 0.01% | +144+0.6% | Added |
| Natixis Advisors, L.P. | 26,250 | $1.67M | 0.00% | +3,688+16.3% | Added |
| Northwestern Mutual Investment Management Company, LLC | 27,355 | $1.74M | 0.02% | +684+2.6% | Added |
| Thrivent Financial for Lutherans | 27,532 | $1.75M | 0.00% | +41+0.1% | Added |
| Pacer Advisors, Inc. | 27,783 | $1.77M | 0.00% | +12,043+76.5% | Added |
| Caption Management, LLC | 27,999 | $1.78M | 0.08% | −2,358−7.8% | Reduced |
| State Board of Administration of Florida Retirement System | 28,486 | $1.81M | 0.00% | 00.0% | Unchanged |
| State of Michigan Retirement System | 28,900 | $1.84M | 0.01% | +400+1.4% | Added |
| Comerica Bank | 28,970 | $1.84M | 0.01% | −4,386−13.1% | Reduced |
| Edgestream Partners, L.P. | 29,284 | $1.86M | 0.05% | +29,284 | New |
| Birchview Capital, LP | 30,000 | $1.91M | 1.12% | 00.0% | Unchanged |
| Mirae Asset Securities (USA) Inc. | 30,067 | $1.91M | 0.08% | +30,067 | New |
| Royal Bank of Canada | 30,572 | $1.94M | 0.00% | −37,621−55.2% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 30,596 | $1.94M | 0.01% | −114−0.4% | Reduced |
| Guggenheim Capital LLC | 31,322 | $1.99M | 0.01% | +440+1.4% | Added |
| Police & Firemen's Retirement System of New Jersey | 31,502 | $2.00M | 0.02% | −1,091−3.3% | Reduced |
| Arizona State Retirement System | 31,926 | $2.03M | 0.01% | −1,620−4.8% | Reduced |
| Legato Capital Management LLC | 31,948 | $2.03M | 0.17% | +14,345+81.5% | Added |
| Ameritas Investment Partners, Inc. | 32,190 | $2.05M | 0.06% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 32,196 | $2.05M | 0.00% | −19,201−37.4% | Reduced |
| ProShare Advisors LLC | 32,219 | $2.05M | 0.00% | +2,889+9.8% | Added |
| Louisiana State Employees Retirement System | 33,300 | $2.12M | 0.04% | 00.0% | Unchanged |
| Knott David M Jr | 34,000 | $2.16M | 1.00% | +4,000+13.3% | Added |
| Rock Springs Capital Management LP | 35,853 | $2.28M | 0.12% | +35,853 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 36,414 | $2.31M | 0.00% | +4,159+12.9% | Added |
| State of Tennessee, Treasury Department | 37,506 | $2.37M | 0.01% | −10,955−22.6% | Reduced |
| Prelude Capital Management, LLC | 37,539 | $2.39M | 0.18% | −3,938−9.5% | Reduced |
| Quinn Opportunity Partners LLC | 38,082 | $2.42M | 0.10% | −235,579−86.1% | Reduced |
| State of New Jersey Common Pension Fund D | 38,799 | $2.47M | 0.01% | −17,103−30.6% | Reduced |
| Yousif Capital Management, LLC | 38,664 | $2.47M | 0.03% | +25+0.1% | Added |
| Profund Advisors LLC | 39,642 | $2.52M | 0.08% | +13,712+52.9% | Added |
| Prudential Financial Inc | 42,035 | $2.67M | 0.00% | −1,291−3.0% | Reduced |
| Rhenman & Partners Asset Management AB | 44,375 | $2.82M | 0.26% | −210,875−82.6% | Reduced |
| Nomura Asset Management International Inc. | 44,879 | $2.85M | 0.00% | +44,879 | New |
| Pathstone Holdings, LLC | 45,399 | $2.88M | 0.01% | +7,121+18.6% | Added |
| New York State Common Retirement Fund | 46,175 | $2.93M | 0.00% | −1,700−3.6% | Reduced |
| Harvey Capital Management Inc | 46,810 | $2.97M | 0.63% | +25,480+119.5% | Added |
| IMC-Chicago, LLC | 47,657 | $3.03M | 0.05% | +47,657 | New |
| Stifel Financial Corp | 47,971 | $3.05M | 0.00% | +3,345+7.5% | Added |
| Intech Investment Management LLC | 49,434 | $3.14M | 0.03% | +10,775+27.9% | Added |
| Quantinno Capital Management LP | 50,437 | $3.20M | 0.01% | +22,000+77.4% | Added |
| Amalgamated Bank | 50,630 | $3.22M | 0.02% | −1,783−3.4% | Reduced |
| Algert Global LLC | 51,310 | $3.26M | 0.05% | −1,150−2.2% | Reduced |
| Advisor Group Holdings, Inc. | 52,436 | $3.33M | 0.00% | −2,297−4.2% | Reduced |
| EFG International AG | 53,265 | $3.39M | 0.07% | +53,265 | New |
| Dimensional Fund Advisors LP | 53,929 | $3.43M | 0.00% | +2,670+5.2% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 54,278 | $3.45M | 0.01% | +23,571+76.8% | Added |
| Boothbay Fund Management, LLC | 56,453 | $3.59M | 0.09% | −35,363−38.5% | Reduced |
| Ironwood Investment Management LLC | 57,229 | $3.64M | 1.53% | −103−0.2% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 59,635 | $3.78M | 0.01% | +143+0.2% | Added |
| Tyro Capital Management LLC | 60,638 | $3.85M | 1.20% | +60,638 | New |
| Envestnet Asset Management Inc | 62,733 | $3.99M | 0.00% | +3,665+6.2% | Added |
| Teachers Retirement System of the State of Kentucky | 62,789 | $3.99M | 0.03% | +2,000+3.3% | Added |
| ACT Capital Management, LLC | 64,500 | $4.10M | 3.31% | +64,500 | New |
| Resolute Capital Asset Partners LLC | 65,000 | $4.13M | 2.00% | +5,000+8.3% | Added |
| Voya Investment Management LLC | 65,592 | $4.17M | 0.00% | +10,948+20.0% | Added |