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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 20,094,362 | $1.71B | 0.03% | +3,546,351+21.4% | Added |
| T. Rowe Price Investment Management, Inc. | 18,718,498 | $1.59B | 1.05% | +1,194,658+6.8% | Added |
| Wellington Management Group LLP | 6,931,770 | $590.5M | 0.10% | −1,077,719−13.5% | Reduced |
| Vanguard Portfolio Management LLC | 6,711,799 | $571.8M | 0.03% | +868,017+14.9% | Added |
| State Street Corp | 6,494,233 | $553.2M | 0.02% | +749,040+13.0% | Added |
| Vanguard Capital Management LLC | 6,117,515 | $521.2M | 0.01% | +628,881+11.5% | Added |
| FMR LLC | 5,031,782 | $428.7M | 0.02% | −5,691,358−53.1% | Reduced |
| Avoro Capital Advisors LLC | 4,999,999 | $425.9M | 3.82% | +1,666,666+50.0% | Added |
| Bank of America Corp | 4,635,709 | $394.9M | 0.03% | +1,510,273+48.3% | Added |
| Geode Capital Management, LLC | 3,712,501 | $316.3M | 0.02% | +497,086+15.5% | Added |
| RTW Investments, LP | 2,862,003 | $243.8M | 2.08% | +140,845+5.2% | Added |
| Polar Capital Holdings Plc | 2,253,649 | $192.0M | 0.54% | +592,401+35.7% | Added |
| Price T Rowe Associates Inc | 1,958,946 | $166.9M | 0.02% | +374,625+23.6% | Added |
| Goldman Sachs Group Inc | 1,761,588 | $150.1M | 0.02% | −444,170−20.1% | Reduced |
| Capital Research Global Investors | 1,686,625 | $143.7M | 0.02% | +915,626+118.8% | Added |
| Northern Trust Corp | 1,647,345 | $140.3M | 0.02% | +205,711+14.3% | Added |
| JPMorgan Chase & Co | 1,588,895 | $139.2M | 0.01% | +685,090+75.8% | Added |
| William Blair Investment Management, LLC | 1,603,442 | $136.6M | 0.41% | +515,851+47.4% | Added |
| Integral Health Asset Management, LLC | 1,600,000 | $136.3M | 5.59% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 1,587,712 | $135.3M | 0.21% | +961,610+153.6% | Added |
| Charles Schwab Investment Management Inc | 1,565,781 | $133.4M | 0.02% | +168,736+12.1% | Added |
| Susquehanna International Group, LLP | 1,549,458 | $132.0M | 0.12% | +650,507+72.4% | Added |
| Morgan Stanley | 1,510,318 | $128.7M | 0.01% | +5,243+0.3% | Added |
| Principal Financial Group Inc | 1,311,664 | $111.7M | 0.05% | +218,179+20.0% | Added |
| Capital International Investors | 1,305,848 | $111.2M | 0.02% | −32,955−2.5% | Reduced |
| Invesco Ltd. | 1,235,323 | $105.2M | 0.01% | +750,343+154.7% | Added |
| Armistice Capital, LLC | 1,201,342 | $102.3M | 2.83% | +436,804+57.1% | Added |
| UBS Group AG | 1,171,287 | $99.8M | 0.02% | −905,990−43.6% | Reduced |
| Pictet Asset Management Holding SA | 1,160,463 | $99.0M | 0.09% | +409,510+54.5% | Added |
| Frazier Life Sciences Management, L.P. | 1,159,879 | $98.8M | 2.15% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 1,150,697 | $98.0M | 0.02% | +144,512+14.4% | Added |
| Holocene Advisors, LP | 1,144,579 | $97.5M | 0.22% | +1,144,579 | New |
| Woodline Partners LP | 1,100,708 | $93.8M | 0.29% | +100,280+10.0% | Added |
| D. E. Shaw & Co., Inc. | 1,048,103 | $89.3M | 0.06% | +341,472+48.3% | Added |
| Norges Bank | 1,015,522 | $86.5M | 0.01% | +1,015,522 | New |
| Royalty Pharma Sub-Manager, LLC | 980,392 | $83.5M | 34.52% | 00.0% | Unchanged |
| Nomura Asset Management International Inc. | 961,815 | $81.9M | 0.12% | +913,332+1,883.8% | Added |
| GW&K Investment Management, LLC | 916,107 | $78.0M | 0.61% | +421,488+85.2% | Added |
| Vanguard Fiduciary Trust Co | 906,423 | $77.2M | 0.02% | +106,801+13.4% | Added |
| Franklin Resources Inc | 891,087 | $75.9M | 0.02% | +481,303+117.5% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 827,810 | $70.5M | 0.07% | +113,466+15.9% | Added |
| Melqart Asset Management (UK) Ltd | 767,525 | $65.4M | 6.22% | −76,424−9.1% | Reduced |
| Siren, L.L.C. | 758,952 | $64.7M | 1.31% | +145,000+23.6% | Added |
| Fisher Asset Management, LLC | 743,697 | $63.4M | 0.02% | −24,567−3.2% | Reduced |
| Foresite Capital Management IV, LLC | 714,695 | $60.9M | 20.98% | +211,400+42.0% | Added |
| Balyasny Asset Management LLC | 711,676 | $60.6M | 0.11% | −280,869−28.3% | Reduced |
| Deep Track Capital, LP | 700,000 | $59.6M | 0.88% | −674,320−49.1% | Reduced |
| BNP Paribas Arbitrage, SA | 689,077 | $58.7M | 0.03% | −165,297−19.3% | Reduced |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. | 660,310 | $56.3M | 3.08% | 00.0% | Unchanged |
| Citadel Advisors LLC | 640,945 | $54.6M | 0.03% | −458,913−41.7% | Reduced |
| Qube Research & Technologies Ltd | 572,535 | $48.8M | 0.05% | −206,911−26.5% | Reduced |
| Brown Advisory Inc | 570,664 | $48.6M | 0.08% | −43,991−7.2% | Reduced |
| Eventide Asset Management, LLC | 564,398 | $48.1M | 0.64% | +85,300+17.8% | Added |
| Affinity Asset Advisors, LLC | 550,000 | $46.9M | 2.29% | −150,483−21.5% | Reduced |
| Massachusetts Financial Services Co | 549,348 | $46.8M | 0.01% | +237,699+76.3% | Added |
| Federated Hermes, Inc. | 538,022 | $45.8M | 0.07% | −161,431−23.1% | Reduced |
| First Turn Management, LLC | 527,412 | $44.9M | 4.81% | +243,712+85.9% | Added |
| American Century Companies Inc | 518,398 | $44.2M | 0.02% | +74,441+16.8% | Added |
| Checkpoint Capital L.P. | 475,000 | $40.5M | 10.38% | +295,000+163.9% | Added |
| Hood River Capital Management LLC | 469,273 | $40.0M | 0.29% | +469,273 | New |
| Emerald Advisers, LLC | 457,956 | $39.0M | 0.92% | +259,145+130.3% | Added |
| ADAR1 Capital Management, LLC | 457,907 | $39.0M | 1.83% | −174,649−27.6% | Reduced |
| Ameriprise Financial Inc | 454,851 | $38.7M | 0.01% | +152,049+50.2% | Added |
| Marshall Wace, LLP | 451,467 | $38.5M | 0.03% | −205,141−31.2% | Reduced |
| Nuveen, LLC | 447,185 | $38.1M | 0.01% | +95,376+27.1% | Added |
| Candriam Luxembourg S.C.A. | 443,066 | $37.7M | 0.17% | +107,858+32.2% | Added |
| Rhumbline Advisers | 421,799 | $35.9M | 0.03% | +52,224+14.1% | Added |
| Alliancebernstein L.P. | 535,993 | $35.3M | 0.01% | +76,906+16.8% | Added |
| Handelsbanken Fonder AB | 405,000 | $34.5M | 0.10% | +157,700+63.8% | Added |
| Gilder Gagnon Howe & Co LLC | 400,245 | $34.1M | 0.35% | +69,256+20.9% | Added |
| TD Asset Management Inc | 385,130 | $32.8M | 0.03% | −35,716−8.5% | Reduced |
| Voya Investment Management LLC | 368,698 | $31.4M | 0.03% | +109,239+42.1% | Added |
| GSK plc | 340,434 | $29.0M | 4.82% | 00.0% | Unchanged |
| Citigroup Inc | 322,932 | $27.5M | 0.01% | +73,689+29.6% | Added |
| Two Sigma Investments, LP | 317,411 | $27.0M | 0.02% | +32,403+11.4% | Added |
| E. Ohman J:or Asset Management AB | 304,611 | $25.9M | 0.60% | +3,849+1.3% | Added |
| Russell Investments Group, Ltd. | 301,566 | $25.7M | 0.02% | +127,537+73.3% | Added |
| Trails Edge Capital Partners, LP | 288,089 | $24.5M | 3.90% | −11,911−4.0% | Reduced |
| Bank of Montreal | 285,688 | $24.3M | 0.01% | +271,076+1,855.2% | Added |
| Emerald Mutual Fund Advisers Trust | 279,769 | $23.8M | 0.84% | +144,305+106.5% | Added |
| UBS Asset Management Americas Inc | 273,031 | $23.3M | 0.00% | +32,399+13.5% | Added |
| Polaris Capital Management, LLC | 266,900 | $22.7M | 2.14% | +266,900 | New |
| Segall Bryant & Hamill, LLC | 257,063 | $21.9M | 0.26% | +76,863+42.7% | Added |
| Alyeska Investment Group, L.P. | 250,000 | $21.3M | 0.05% | +100,000+66.7% | Added |
| ExodusPoint Capital Management, LP | 249,259 | $21.2M | 0.20% | +197,032+377.3% | Added |
| Capital World Investors | 248,815 | $21.2M | 0.00% | +6,774+2.8% | Added |
| Jupiter Topco LLC | 244,417 | $20.8M | 0.01% | +244,417 | New |
| Walleye Capital LLC | 239,728 | $20.4M | 0.10% | +239,728 | New |
| Sarissa Capital Management LP | 228,623 | $19.5M | 10.95% | 00.0% | Unchanged |
| Swiss National Bank | 222,400 | $18.9M | 0.01% | −7,400−3.2% | Reduced |
| Sphera Funds Management Ltd. | 219,987 | $18.7M | 2.68% | +180,170+452.5% | Added |
| Deutsche Bank AG | 216,540 | $18.4M | 0.01% | +29,402+15.7% | Added |
| Prudential Financial Inc | 214,535 | $18.3M | 0.02% | +155,110+261.0% | Added |
| Baker Bros. Advisors LP | 211,267 | $18.0M | 0.09% | +211,267 | New |
| California Public Employees Retirement System | 211,052 | $18.0M | 0.01% | +12,522+6.3% | Added |
| Nicholas Investment Partners, LP | 209,071 | $17.8M | 1.00% | +139,226+199.3% | Added |
| Pinnacle Associates Ltd | 202,440 | $17.2M | 0.19% | +25,378+14.3% | Added |
| Mirador Capital Partners LP | 202,370 | $17.2M | 2.11% | −303−0.1% | Reduced |
| Tri Locum Partners LP | 194,000 | $16.5M | 2.03% | +194,000 | New |
| PFM Health Sciences, LP | 191,686 | $16.3M | 1.42% | +191,686 | New |