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 18 sales; 481 institutions reported holding it in 13F filings for Q2 2026, worth $13.7B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Cytokinetics Inc as of Jun 30, 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
- 481
- +46 vs. Q1 2026
- Shares held
- 160.4M
- +14.6M (+10.0%) vs. Q1 2026
- Total value
- $13.7B
- +$4.05B (+42.2%) vs. Q1 2026
- New holders
- 93
- 236 more added
- Sold out
- 47
- 102 more reduced
6 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | 481 | $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, Q2 2026
Shares, value and share of portfolio for each institution holding Cytokinetics Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Y-Intercept (Hong Kong) Ltd | 43,619 | $3.72M | 0.07% | +43,619 | New |
| Sector Gamma AS | 45,000 | $3.83M | 0.83% | +45,000 | New |
| ACT Capital Management, LLC | 47,500 | $4.05M | 2.64% | −17,000−26.4% | Reduced |
| Pathstone Holdings, LLC | 47,633 | $4.06M | 0.01% | +3,117+7.0% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 47,853 | $4.08M | 0.01% | +2,280+5.0% | Added |
| Advisor Group Holdings, Inc. | 50,087 | $4.27M | 0.01% | −785−1.5% | Reduced |
| Quantinno Capital Management LP | 50,259 | $4.28M | 0.01% | −2,339−4.4% | Reduced |
| Calamos Advisors LLC | 51,443 | $4.38M | 0.02% | +29,816+137.9% | Added |
| Natixis Advisors, L.P. | 53,358 | $4.54M | 0.01% | +19,642+58.3% | Added |
| Schonfeld Strategic Advisors LLC | 53,354 | $4.55M | 0.02% | −48,211−47.5% | Reduced |
| Verition Fund Management LLC | 54,889 | $4.68M | 0.03% | +54,889 | New |
| Ironwood Investment Management LLC | 56,589 | $4.82M | 1.67% | −149−0.3% | Reduced |
| Stifel Financial Corp | 56,834 | $4.84M | 0.00% | +2,390+4.4% | Added |
| Amalgamated Bank | 57,548 | $4.90M | 0.03% | +4,747+9.0% | Added |
| EFG International AG | 57,929 | $4.94M | 0.09% | +7,745+15.4% | Added |
| Intech Investment Management LLC | 58,348 | $4.97M | 0.05% | +5,000+9.4% | Added |
| Militia Capital Management LLC | 60,000 | $5.11M | 0.92% | +60,000 | New |
| Exome Asset Management LLC | 60,056 | $5.12M | 3.16% | −43,662−42.1% | Reduced |
| State of Tennessee, Treasury Department | 60,194 | $5.13M | 0.02% | +22,688+60.5% | Added |
| F/M Investments LLC | 60,891 | $5.19M | 0.26% | +31,303+105.8% | Added |
| Vanguard Global Advisers, LLC | 60,957 | $5.19M | 0.00% | +5,774+10.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 65,697 | $5.61M | 0.01% | +4,520+7.4% | Added |
| Campbell & CO Investment Adviser LLC | 65,978 | $5.62M | 0.29% | +65,978 | New |
| Teachers Retirement System of the State of Kentucky | 66,332 | $5.65M | 0.04% | +3,543+5.6% | Added |
| Boothbay Fund Management, LLC | 68,092 | $5.80M | 0.11% | −36,353−34.8% | Reduced |
| EAM Investors, LLC | 68,185 | $5.81M | 0.52% | +68,185 | New |
| Harvey Capital Management Inc | 68,275 | $5.82M | 1.20% | +18,980+38.5% | Added |
| Neuberger Berman Group LLC | 69,351 | $5.91M | 0.00% | −7,742−10.0% | Reduced |
| Barclays PLC | 70,642 | $6.02M | 0.00% | −8,517−10.8% | Reduced |
| Pier Capital, LLC | 70,665 | $6.02M | 0.80% | +1,082+1.6% | Added |
| Artia Global Partners LP | 70,700 | $6.02M | 1.14% | +54,400+333.7% | Added |
| New York State Common Retirement Fund | 72,682 | $6.19M | 0.01% | +25,963+55.6% | Added |
| StemPoint Capital LP | 75,603 | $6.44M | 1.11% | −53,974−41.7% | Reduced |
| Great West Life Assurance Co | 76,021 | $6.47M | 0.01% | +7,436+10.8% | Added |
| Public Employees Retirement Association of Colorado | 76,352 | $6.50M | 0.02% | +65,800+623.6% | Added |
| State of Wisconsin Investment Board | 76,579 | $6.52M | 0.01% | +4,514+6.3% | Added |
| HighVista Strategies LLC | 78,003 | $6.65M | 1.52% | +19,360+33.0% | Added |
| XTX Topco Ltd | 80,743 | $6.88M | 0.09% | +56,890+238.5% | Added |
| Capricorn Fund Managers Ltd | 81,879 | $6.98M | 0.56% | +81,879 | New |
| Seven Grand Managers, LLC | 85,000 | $7.24M | 0.29% | +85,000 | New |
| Raymond James Financial Inc | 88,259 | $7.52M | 0.00% | +19,756+28.8% | Added |
| Envestnet Asset Management Inc | 88,521 | $7.54M | 0.00% | +53,984+156.3% | Added |
| Tudor Investment Corp Et Al | 92,680 | $7.90M | 0.03% | +92,680 | New |
| Dimensional Fund Advisors LP | 96,832 | $8.25M | 0.00% | +2,329+2.5% | Added |
| SEI Investments Co | 98,162 | $8.36M | 0.01% | +28,350+40.6% | Added |
| Boxer Capital Management, LLC | 100,000 | $8.52M | 0.64% | 00.0% | Unchanged |
| Burkehill Global Management, LP | 100,000 | $8.52M | 0.31% | +100,000 | New |
| Peregrine Capital Management LLC | 100,019 | $8.52M | 0.28% | −3,607−3.5% | Reduced |
| Royce & Associates LP | 101,624 | $8.66M | 0.07% | −22,673−18.2% | Reduced |
| Millennium Management LLC | 109,717 | $9.35M | 0.01% | +11,758+12.0% | Added |
| Erste Asset Management GmbH | 109,183 | $9.53M | 0.07% | +32,233+41.9% | Added |
| SummitTX Capital, L.P. | 112,893 | $9.62M | 0.25% | +63,182+127.1% | Added |
| Vanguard Asset Management, Ltd | 112,918 | $9.62M | 0.01% | +5,924+5.5% | Added |
| New York State Teachers Retirement System | 114,600 | $9.76M | 0.02% | +4,095+3.7% | Added |
| Freestone Grove Partners LP | 114,824 | $9.78M | 0.06% | −101,945−47.0% | Reduced |
| Trexquant Investment LP | 115,134 | $9.81M | 0.06% | +66,944+138.9% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 116,828 | $9.95M | 0.02% | +61,438+110.9% | Added |
| First Trust Advisors LP | 118,149 | $10.1M | 0.01% | −27,741−19.0% | Reduced |
| Seven Fleet Capital Management LP | 118,240 | $10.1M | 1.66% | +56,971+93.0% | Added |
| Standard Life Aberdeen plc | 119,435 | $10.2M | 0.01% | −363,839−75.3% | Reduced |
| Mutual of America Capital Management LLC | 121,652 | $10.4M | 0.10% | +30,773+33.9% | Added |
| Aquatic Capital Management LLC | 125,090 | $10.7M | 0.37% | +52,612+72.6% | Added |
| California State Teachers Retirement System | 127,969 | $10.9M | 0.01% | −8,630−6.3% | Reduced |
| Algert Global LLC | 129,460 | $11.0M | 0.13% | +12,340+10.5% | Added |
| Cinctive Capital Management LP | 137,838 | $11.7M | 0.47% | +102,776+293.1% | Added |
| Polymer Capital Management (HK) LTD | 138,255 | $11.8M | 1.20% | +138,255 | New |
| MetLife Investment Management | 140,046 | $11.9M | 0.05% | +16,717+13.6% | Added |
| Retirement Systems of Alabama | 140,426 | $12.0M | 0.04% | −9,465−6.3% | Reduced |
| Creative Planning | 141,939 | $12.1M | 0.01% | +34,179+31.7% | Added |
| Schroder Investment Management Group | 140,099 | $12.2M | 0.01% | +121,986+673.5% | Added |
| HSBC Holdings PLC | 151,125 | $12.9M | 0.01% | −70,874−31.9% | Reduced |
| Wells Fargo & Company | 152,592 | $13.0M | 0.00% | +78,250+105.3% | Added |
| Manufacturers Life Insurance Company, The | 156,477 | $13.3M | 0.01% | −10,647−6.4% | Reduced |
| Kingdon Capital Management, L.L.C. | 157,100 | $13.4M | 1.80% | +157,100 | New |
| AQR Capital Management LLC | 161,903 | $13.8M | 0.00% | +5,359+3.4% | Added |
| Legal & General Group Plc | 164,688 | $14.0M | 0.00% | +13,667+9.0% | Added |
| Impax Asset Management Group plc | 165,000 | $14.1M | 0.09% | +40,000+32.0% | Added |
| Ghisallo Capital Management LLC | 170,000 | $14.5M | 0.28% | +170,000 | New |
| DAFNA Capital Management LLC | 171,998 | $14.7M | 2.79% | −45,499−20.9% | Reduced |
| Rock Springs Capital Management LP | 187,980 | $16.0M | 0.78% | +142,616+314.4% | Added |
| PFM Health Sciences, LP | 191,686 | $16.3M | 1.42% | +191,686 | New |
| Tri Locum Partners LP | 194,000 | $16.5M | 2.03% | +194,000 | New |
| Mirador Capital Partners LP | 202,370 | $17.2M | 2.11% | −303−0.1% | Reduced |
| Pinnacle Associates Ltd | 202,440 | $17.2M | 0.19% | +25,378+14.3% | Added |
| Nicholas Investment Partners, LP | 209,071 | $17.8M | 1.00% | +139,226+199.3% | Added |
| California Public Employees Retirement System | 211,052 | $18.0M | 0.01% | +12,522+6.3% | Added |
| Baker Bros. Advisors LP | 211,267 | $18.0M | 0.09% | +211,267 | New |
| Prudential Financial Inc | 214,535 | $18.3M | 0.02% | +155,110+261.0% | Added |
| Deutsche Bank AG | 216,540 | $18.4M | 0.01% | +29,402+15.7% | Added |
| Sphera Funds Management Ltd. | 219,987 | $18.7M | 2.68% | +180,170+452.5% | Added |
| Swiss National Bank | 222,400 | $18.9M | 0.01% | −7,400−3.2% | Reduced |
| Sarissa Capital Management LP | 228,623 | $19.5M | 10.95% | 00.0% | Unchanged |
| Walleye Capital LLC | 239,728 | $20.4M | 0.10% | +239,728 | New |
| Jupiter Topco LLC | 244,417 | $20.8M | 0.01% | +244,417 | New |
| Capital World Investors | 248,815 | $21.2M | 0.00% | +6,774+2.8% | Added |
| ExodusPoint Capital Management, LP | 249,259 | $21.2M | 0.20% | +197,032+377.3% | Added |
| Alyeska Investment Group, L.P. | 250,000 | $21.3M | 0.05% | +100,000+66.7% | Added |
| Segall Bryant & Hamill, LLC | 257,063 | $21.9M | 0.26% | +76,863+42.7% | Added |
| Polaris Capital Management, LLC | 266,900 | $22.7M | 2.14% | +266,900 | New |
| UBS Asset Management Americas Inc | 273,031 | $23.3M | 0.00% | +32,399+13.5% | Added |