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, Q1 2026
Institutional positions in Cytokinetics Inc as of Mar 31, 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
- 441
- +17 vs. Q4 2025
- Shares held
- 146.2M
- +19.5M (+15.4%) vs. Q4 2025
- Total value
- $9.63B
- +$1.58B (+19.7%) vs. Q4 2025
- New holders
- 80
- 176 more added
- Sold out
- 63
- 135 more reduced
7 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Cytokinetics Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Pictet Asset Management Holding SA | 750,953 | $49.3M | 0.05% | −6,610−0.9% | Reduced |
| Armistice Capital, LLC | 764,538 | $50.4M | 1.66% | −228,228−23.0% | Reduced |
| Fisher Asset Management, LLC | 768,264 | $50.6M | 0.02% | −54,621−6.6% | Reduced |
| Capital Research Global Investors | 770,999 | $50.8M | 0.01% | +770,999 | New |
| Qube Research & Technologies Ltd | 779,446 | $51.4M | 0.07% | +242,169+45.1% | Added |
| Vanguard Fiduciary Trust Co | 799,622 | $52.7M | 0.01% | +799,622 | New |
| Melqart Asset Management (UK) Ltd | 843,949 | $55.6M | 5.48% | +221,051+35.5% | Added |
| BNP Paribas Arbitrage, SA | 854,374 | $56.3M | 0.04% | +274,512+47.3% | Added |
| JPMorgan Chase & Co | 903,805 | $56.9M | 0.00% | −508,992−36.0% | Reduced |
| Logos Global Management LP | 875,000 | $57.7M | 2.97% | +575,000+191.7% | Added |
| Susquehanna International Group, LLP | 898,951 | $59.2M | 0.08% | +145,334+19.3% | Added |
| Royalty Pharma Sub-Manager, LLC | 980,392 | $64.6M | 37.40% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 992,545 | $65.4M | 0.13% | +992,545 | New |
| Woodline Partners LP | 1,000,428 | $65.9M | 0.25% | −648,000−39.3% | Reduced |
| Bank of New York Mellon Corp | 1,006,185 | $66.3M | 0.01% | +151,876+17.8% | Added |
| William Blair Investment Management, LLC | 1,087,591 | $71.7M | 0.24% | +1,087,591 | New |
| Principal Financial Group Inc | 1,093,485 | $72.1M | 0.04% | +116,593+11.9% | Added |
| Citadel Advisors LLC | 1,099,858 | $72.5M | 0.05% | −63,079−5.4% | Reduced |
| Frazier Life Sciences Management, L.P. | 1,159,879 | $76.4M | 1.97% | +225,237+24.1% | Added |
| Capital International Investors | 1,338,803 | $88.2M | 0.02% | +160,023+13.6% | Added |
| Deep Track Capital, LP | 1,374,320 | $90.6M | 1.87% | −1,962,678−58.8% | Reduced |
| Charles Schwab Investment Management Inc | 1,397,045 | $92.1M | 0.01% | +13,608+1.0% | Added |
| Northern Trust Corp | 1,441,634 | $95.0M | 0.01% | +60,847+4.4% | Added |
| Paradigm Biocapital Advisors LP | 1,480,857 | $97.6M | 1.99% | +1,480,857 | New |
| Morgan Stanley | 1,505,075 | $99.2M | 0.01% | +239,774+18.9% | Added |
| Price T Rowe Associates Inc | 1,584,321 | $104.4M | 0.01% | −345,798−17.9% | Reduced |
| Integral Health Asset Management, LLC | 1,600,000 | $105.5M | 5.58% | +200,000+14.3% | Added |
| Polar Capital Holdings Plc | 1,661,248 | $109.5M | 0.48% | −761,364−31.4% | Reduced |
| UBS Group AG | 2,077,277 | $136.9M | 0.02% | +945,821+83.6% | Added |
| Goldman Sachs Group Inc | 2,205,758 | $145.4M | 0.02% | −165,921−7.0% | Reduced |
| RTW Investments, LP | 2,721,158 | $179.4M | 1.78% | 00.0% | Unchanged |
| Bank of America Corp | 3,125,436 | $206.0M | 0.02% | +184,284+6.3% | Added |
| Geode Capital Management, LLC | 3,215,415 | $212.0M | 0.01% | +159,398+5.2% | Added |
| Avoro Capital Advisors LLC | 3,333,333 | $219.7M | 2.16% | +3,333,333 | New |
| Vanguard Capital Management LLC | 5,488,634 | $361.8M | 0.01% | +5,488,634 | New |
| State Street Corp | 5,745,193 | $378.7M | 0.01% | −80,102−1.4% | Reduced |
| Vanguard Portfolio Management LLC | 5,843,782 | $385.2M | 0.02% | +5,843,782 | New |
| Wellington Management Group LLP | 8,009,489 | $527.9M | 0.10% | +72,426+0.9% | Added |
| FMR LLC | 10,723,140 | $706.8M | 0.04% | −2,084,612−16.3% | Reduced |
| BlackRock, Inc. | 16,548,011 | $1.09B | 0.02% | +152,888+0.9% | Added |
| T. Rowe Price Investment Management, Inc. | 17,523,840 | $1.15B | 0.80% | −192,532−1.1% | Reduced |
| Rosalind Advisors, Inc. | 0 | $0 | 0.00% | −195,045−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −174,700−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −172,067−100.0% | Sold out |
| Hood River Capital Management LLC | 0 | $0 | 0.00% | −137,597−100.0% | Sold out |
| Readystate Asset Management LP | 0 | $0 | 0.00% | −122,711−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −111,544−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −96,484−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −88,684−100.0% | Sold out |
| Lisanti Capital Growth, LLC | 0 | $0 | 0.00% | −74,200−100.0% | Sold out |
| DekaBank Deutsche Girozentrale | 0 | $0 | 0.00% | −57,500−100.0% | Sold out |
| Resolute Capital Asset Partners LLC | 0 | $0 | 0.00% | −65,000−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −47,657−100.0% | Sold out |
| Rhenman & Partners Asset Management AB | 0 | $0 | 0.00% | −44,375−100.0% | Sold out |
| Mirae Asset Securities (USA) Inc. | 0 | $0 | 0.00% | −30,067−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −23,376−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −16,658−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −15,131−100.0% | Sold out |
| NEOS Investment Management LLC | 0 | $0 | 0.00% | −13,278−100.0% | Sold out |
| Fred Alger Management, LLC | 0 | $0 | 0.00% | −10,563−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Polen Capital Management LLC | 0 | $0 | 0.00% | −9,584−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −9,484−100.0% | Sold out |
| Polymer Capital Management (US) LLC | 0 | $0 | 0.00% | −8,014−100.0% | Sold out |
| Havemeyer Place LP | 0 | $0 | 0.00% | −7,923−100.0% | Sold out |
| Cynosure Management, LLC | 0 | $0 | 0.00% | −7,354−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −7,224−100.0% | Sold out |
| Banque Pictet & Cie SA | 0 | $0 | 0.00% | −6,184−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −6,000−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −5,790−100.0% | Sold out |
| Summit Trail Advisors, LLC | 0 | $0 | 0.00% | −5,388−100.0% | Sold out |
| Virginia Retirement Systems Et Al | 0 | $0 | 0.00% | −4,950−100.0% | Sold out |
| Empowered Funds, LLC | 0 | $0 | 0.00% | −4,237−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −4,199−100.0% | Sold out |
| OP Asset Management Ltd | 0 | $0 | 0.00% | −3,767−100.0% | Sold out |
| Blueshift Asset Management, LLC | 0 | $0 | 0.00% | −3,679−100.0% | Sold out |
| Meridian Financial, LLC | 0 | $0 | 0.00% | −3,583−100.0% | Sold out |
| Bailard, Inc. | 0 | $0 | 0.00% | −3,425−100.0% | Sold out |
| Ellevest, Inc. | 0 | $0 | 0.00% | −3,324−100.0% | Sold out |
| Pennington Partners & Co., LLC | 0 | $0 | 0.00% | −3,278−100.0% | Sold out |
| Persistent Asset Partners Ltd | 0 | $0 | 0.00% | −3,214−100.0% | Sold out |
| Ascent Group, LLC | 0 | $0 | 0.00% | −3,149−100.0% | Sold out |
| Parallax Volatility Advisers, L.P. | 0 | $0 | 0.00% | −3,039−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −2,541−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −2,100−100.0% | Sold out |
| DV Trading LLC | 0 | $0 | 0.00% | −2,005−100.0% | Sold out |
| Alphadyne Asset Management LP | 0 | $0 | 0.00% | −1,233−100.0% | Sold out |
| TD Waterhouse Canada Inc. | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Migdal Insurance & Financial Holdings Ltd. | 0 | $0 | 0.00% | −284−100.0% | Sold out |
| Cygnus Capital Advisors, LLC | 0 | $0 | 0.00% | −229−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Kayne Anderson Rudnick Investment Management LLC | 0 | $0 | 0.00% | −180−100.0% | Sold out |
| Elyxium Wealth, LLC | 0 | $0 | 0.00% | −166−100.0% | Sold out |
| Torren Management, LLC | 0 | $0 | 0.00% | −159−100.0% | Sold out |
| SageView Advisory Group, LLC | 0 | $0 | 0.00% | −150−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −147−100.0% | Sold out |
| ZRC Wealth Management, LLC | 0 | $0 | 0.00% | −65−100.0% | Sold out |
| Whittier Trust Co | 0 | $0 | 0.00% | −59−100.0% | Sold out |
| Crewe Advisors LLC | 0 | $0 | 0.00% | −36−100.0% | Sold out |
| Bellevue Asset Management, LLC | 0 | $0 | 0.00% | −19−100.0% | Sold out |