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, 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 | 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, 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 |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 19,080,496 | $1.05B | 0.64% | +1,478,056+8.4% | Added |
| BlackRock, Inc. | 15,525,747 | $853.3M | 0.02% | −152,120−1.0% | Reduced |
| FMR LLC | 13,091,647 | $719.5M | 0.04% | +1,824,136+16.2% | Added |
| Vanguard Group Inc | 11,856,795 | $651.6M | 0.01% | −127,043−1.1% | Reduced |
| Wellington Management Group LLP | 7,408,561 | $407.2M | 0.07% | −419,118−5.4% | Reduced |
| State Street Corp | 5,617,334 | $308.7M | 0.01% | −755,419−11.9% | Reduced |
| Deep Track Capital, LP | 4,300,000 | $236.3M | 6.60% | +650,000+17.8% | Added |
| Bank of America Corp | 3,061,796 | $168.3M | 0.01% | +416,228+15.7% | Added |
| Geode Capital Management, LLC | 3,040,202 | $167.1M | 0.01% | +45,757+1.5% | Added |
| Polar Capital Holdings Plc | 2,782,930 | $152.9M | 0.74% | −15,471−0.6% | Reduced |
| RTW Investments, LP | 2,721,158 | $149.6M | 1.84% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 2,366,848 | $130.1M | 0.01% | +500,871+26.8% | Added |
| UBS Group AG | 1,803,251 | $99.1M | 0.02% | −1,267,414−41.3% | Reduced |
| Woodline Partners LP | 1,647,725 | $90.6M | 0.43% | +1,435,422+676.1% | Added |
| Goldman Sachs Group Inc | 1,634,723 | $89.8M | 0.01% | +360,740+28.3% | Added |
| JPMorgan Chase & Co | 1,542,857 | $84.8M | 0.01% | +225,443+17.1% | Added |
| Morgan Stanley | 1,521,186 | $83.6M | 0.01% | +403,106+36.1% | Added |
| Northern Trust Corp | 1,406,832 | $77.3M | 0.01% | +27,641+2.0% | Added |
| Integral Health Asset Management, LLC | 1,400,000 | $76.9M | 5.61% | +400,000+40.0% | Added |
| Citadel Advisors LLC | 1,386,065 | $76.2M | 0.06% | +87,456+6.7% | Added |
| Charles Schwab Investment Management Inc | 1,373,883 | $75.5M | 0.01% | +16,766+1.2% | Added |
| Armistice Capital, LLC | 1,196,868 | $65.8M | 2.06% | −115,481−8.8% | Reduced |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. | 1,192,484 | $65.5M | 5.06% | +109,921+10.2% | Added |
| Capital International Investors | 1,178,780 | $64.8M | 0.01% | +10,670+0.9% | Added |
| Principal Financial Group Inc | 1,174,448 | $64.5M | 0.03% | −10,357−0.9% | Reduced |
| Pictet Asset Management Holding SA | 1,145,558 | $62.9M | 0.06% | −400,833−25.9% | Reduced |
| Susquehanna International Group, LLP | 1,017,801 | $55.9M | 0.08% | +296,987+41.2% | Added |
| Standard Life Aberdeen plc | 927,832 | $51.0M | 0.08% | +4,903+0.5% | Added |
| Brown Advisory Inc | 912,186 | $50.1M | 0.07% | −83,113−8.4% | Reduced |
| Frazier Life Sciences Management, L.P. | 890,445 | $48.9M | 1.47% | +335,714+60.5% | Added |
| Bank of New York Mellon Corp | 869,231 | $47.8M | 0.01% | −5,072−0.6% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 785,000 | $43.1M | 0.11% | +108,720+16.1% | Added |
| Melqart Asset Management (UK) Ltd | 783,774 | $43.1M | 5.75% | −542,945−40.9% | Reduced |
| Fisher Asset Management, LLC | 761,587 | $41.9M | 0.02% | +27,907+3.8% | Added |
| Vestal Point Capital, LP | 725,000 | $39.8M | 1.81% | −2,250,000−75.6% | Reduced |
| TD Asset Management Inc | 671,780 | $36.9M | 0.03% | +127,488+23.4% | Added |
| Sarissa Capital Management LP | 588,357 | $32.3M | 17.93% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 564,547 | $31.0M | 0.01% | +219,581+63.7% | Added |
| ADAR1 Capital Management, LLC | 518,921 | $28.5M | 2.82% | −63,226−10.9% | Reduced |
| AQR Capital Management LLC | 513,290 | $28.2M | 0.02% | +165,551+47.6% | Added |
| Massachusetts Financial Services Co | 496,673 | $27.3M | 0.01% | −929−0.2% | Reduced |
| Point72 Asset Management, L.P. | 471,482 | $25.9M | 0.06% | +471,482 | New |
| Foresite Capital Management IV, LLC | 458,295 | $25.2M | 13.79% | +458,295 | New |
| Catalio Capital Management, LP | 451,581 | $24.8M | 4.59% | −149,858−24.9% | Reduced |
| American Century Companies Inc | 429,203 | $23.6M | 0.01% | −3,528−0.8% | Reduced |
| Franklin Resources Inc | 409,725 | $22.5M | 0.01% | +6,936+1.7% | Added |
| E. Ohman J:or Asset Management AB | 407,037 | $22.4M | 0.53% | 00.0% | Unchanged |
| Rosalind Advisors, Inc. | 400,000 | $22.0M | 7.98% | 00.0% | Unchanged |
| Barclays PLC | 398,075 | $21.9M | 0.01% | −94,739−19.2% | Reduced |
| DAFNA Capital Management LLC | 394,940 | $21.7M | 5.36% | −3,160−0.8% | Reduced |
| Gilder Gagnon Howe & Co LLC | 389,055 | $21.4M | 0.22% | +197,940+103.6% | Added |
| Rhumbline Advisers | 385,813 | $21.2M | 0.02% | −4,127−1.1% | Reduced |
| Nuveen, LLC | 370,915 | $20.4M | 0.01% | +63,416+20.6% | Added |
| Affinity Asset Advisors, LLC | 350,000 | $19.2M | 1.79% | +350,000 | New |
| Millennium Management LLC | 342,533 | $18.8M | 0.01% | −116,144−25.3% | Reduced |
| Pentwater Capital Management LP | 300,000 | $16.5M | 0.15% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 289,967 | $15.9M | 0.02% | +279,800+2,752.0% | Added |
| Susquehanna Portfolio Strategies, LLC | 278,429 | $15.3M | 0.24% | +14,100+5.3% | Added |
| Quinn Opportunity Partners LLC | 273,661 | $15.0M | 1.10% | +78,722+40.4% | Added |
| Rhenman & Partners Asset Management AB | 255,250 | $14.0M | 1.55% | +151,000+144.8% | Added |
| First Turn Management, LLC | 254,795 | $14.0M | 2.10% | +254,795 | New |
| BNP Paribas Arbitrage, SA | 247,465 | $13.6M | 0.01% | −42,780−14.7% | Reduced |
| UBS Asset Management Americas Inc | 238,382 | $13.1M | 0.00% | −177,871−42.7% | Reduced |
| Alliancebernstein L.P. | 235,416 | $12.9M | 0.00% | −1,150,537−83.0% | Reduced |
| Handelsbanken Fonder AB | 234,500 | $12.9M | 0.04% | +202,200+626.0% | Added |
| Ikarian Capital, LLC | 222,674 | $12.2M | 2.77% | −10,790−4.6% | Reduced |
| Swiss National Bank | 219,900 | $12.1M | 0.01% | +3,700+1.7% | Added |
| Silverarc Capital Management, LLC | 211,000 | $11.6M | 1.68% | +211,000 | New |
| Pinnacle Associates Ltd | 201,490 | $11.1M | 0.15% | −7,037−3.4% | Reduced |
| Boxer Capital Management, LLC | 200,000 | $11.0M | 3.50% | +200,000 | New |
| Mirador Capital Partners LP | 197,367 | $10.8M | 1.54% | +53,020+36.7% | Added |
| Manufacturers Life Insurance Company, The | 191,897 | $10.5M | 0.01% | +16,618+9.5% | Added |
| Group One Trading, L.P. | 187,969 | $10.3M | 0.31% | −145,313−43.6% | Reduced |
| Schroder Investment Management Group | 186,883 | $10.1M | 0.01% | −124,008−39.9% | Reduced |
| Hudson Bay Capital Management LP | 182,131 | $10.0M | 0.06% | +24,345+15.4% | Added |
| Segall Bryant & Hamill, LLC | 181,050 | $9.95M | 0.13% | +97,280+116.1% | Added |
| GW&K Investment Management, LLC | 180,670 | $9.93M | 0.09% | +180,670 | New |
| Legal & General Group Plc | 179,650 | $9.87M | 0.00% | −2,087−1.1% | Reduced |
| Marshall Wace, LLP | 178,980 | $9.84M | 0.01% | +157,755+743.3% | Added |
| Impax Asset Management Group plc | 175,000 | $9.62M | 0.06% | 00.0% | Unchanged |
| Eventide Asset Management, LLC | 170,108 | $9.35M | 0.15% | −79,392−31.8% | Reduced |
| Deutsche Bank AG | 165,564 | $9.10M | 0.00% | +21,751+15.1% | Added |
| Sphera Funds Management Ltd. | 161,517 | $8.88M | 2.11% | −165,201−50.6% | Reduced |
| Invesco Ltd. | 157,249 | $8.64M | 0.00% | +20,937+15.4% | Added |
| Peregrine Capital Management LLC | 154,449 | $8.49M | 0.26% | −4,079−2.6% | Reduced |
| California Public Employees Retirement System | 150,399 | $8.27M | 0.00% | +7,797+5.5% | 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 |
| Skandinaviska Enskilda Banken AB (publ) | 149,957 | $8.24M | 0.03% | +110,568+280.7% | Added |
| Retirement Systems of Alabama | 144,672 | $7.95M | 0.03% | −1,295−0.9% | Reduced |
| Readystate Asset Management LP | 142,482 | $7.83M | 0.38% | +10,264+7.8% | Added |
| Exome Asset Management LLC | 142,417 | $7.83M | 5.17% | +26,600+23.0% | Added |
| Aquatic Capital Management LLC | 135,869 | $7.47M | 0.14% | +130,372+2,371.7% | Added |
| HighVista Strategies LLC | 132,930 | $7.31M | 1.79% | +64,278+93.6% | Added |
| MetLife Investment Management | 127,590 | $7.01M | 0.03% | −4,364−3.3% | Reduced |
| Monaco Asset Management SAM | 120,000 | $6.60M | 2.46% | +77,500+182.4% | Added |
| Russell Investments Group, Ltd. | 119,890 | $6.59M | 0.01% | −31,951−21.0% | Reduced |
| New York State Teachers Retirement System | 114,500 | $6.29M | 0.01% | 00.0% | Unchanged |
| Macquarie Group Ltd | 110,260 | $6.06M | 0.01% | +26,388+31.5% | Added |
| California State Teachers Retirement System | 107,448 | $5.91M | 0.01% | +3,813+3.7% | Added |