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 |
|---|---|---|---|---|---|
| Emerald Mutual Fund Advisers Trust | 279,769 | $23.8M | 0.84% | +144,305+106.5% | Added |
| Bank of Montreal | 285,688 | $24.3M | 0.01% | +271,076+1,855.2% | Added |
| Trails Edge Capital Partners, LP | 288,089 | $24.5M | 3.90% | −11,911−4.0% | Reduced |
| Russell Investments Group, Ltd. | 301,566 | $25.7M | 0.02% | +127,537+73.3% | Added |
| E. Ohman J:or Asset Management AB | 304,611 | $25.9M | 0.60% | +3,849+1.3% | Added |
| Two Sigma Investments, LP | 317,411 | $27.0M | 0.02% | +32,403+11.4% | Added |
| Citigroup Inc | 322,932 | $27.5M | 0.01% | +73,689+29.6% | Added |
| GSK plc | 340,434 | $29.0M | 4.82% | 00.0% | Unchanged |
| Voya Investment Management LLC | 368,698 | $31.4M | 0.03% | +109,239+42.1% | Added |
| TD Asset Management Inc | 385,130 | $32.8M | 0.03% | −35,716−8.5% | Reduced |
| Gilder Gagnon Howe & Co LLC | 400,245 | $34.1M | 0.35% | +69,256+20.9% | Added |
| Handelsbanken Fonder AB | 405,000 | $34.5M | 0.10% | +157,700+63.8% | Added |
| Alliancebernstein L.P. | 535,993 | $35.3M | 0.01% | +76,906+16.8% | Added |
| Rhumbline Advisers | 421,799 | $35.9M | 0.03% | +52,224+14.1% | Added |
| Candriam Luxembourg S.C.A. | 443,066 | $37.7M | 0.17% | +107,858+32.2% | Added |
| Nuveen, LLC | 447,185 | $38.1M | 0.01% | +95,376+27.1% | Added |
| Marshall Wace, LLP | 451,467 | $38.5M | 0.03% | −205,141−31.2% | Reduced |
| Ameriprise Financial Inc | 454,851 | $38.7M | 0.01% | +152,049+50.2% | Added |
| ADAR1 Capital Management, LLC | 457,907 | $39.0M | 1.83% | −174,649−27.6% | Reduced |
| Emerald Advisers, LLC | 457,956 | $39.0M | 0.92% | +259,145+130.3% | Added |
| Hood River Capital Management LLC | 469,273 | $40.0M | 0.29% | +469,273 | New |
| Checkpoint Capital L.P. | 475,000 | $40.5M | 10.38% | +295,000+163.9% | Added |
| American Century Companies Inc | 518,398 | $44.2M | 0.02% | +74,441+16.8% | Added |
| First Turn Management, LLC | 527,412 | $44.9M | 4.81% | +243,712+85.9% | Added |
| Federated Hermes, Inc. | 538,022 | $45.8M | 0.07% | −161,431−23.1% | Reduced |
| Massachusetts Financial Services Co | 549,348 | $46.8M | 0.01% | +237,699+76.3% | Added |
| Affinity Asset Advisors, LLC | 550,000 | $46.9M | 2.29% | −150,483−21.5% | Reduced |
| Eventide Asset Management, LLC | 564,398 | $48.1M | 0.64% | +85,300+17.8% | Added |
| Brown Advisory Inc | 570,664 | $48.6M | 0.08% | −43,991−7.2% | Reduced |
| Qube Research & Technologies Ltd | 572,535 | $48.8M | 0.05% | −206,911−26.5% | Reduced |
| Citadel Advisors LLC | 640,945 | $54.6M | 0.03% | −458,913−41.7% | Reduced |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. | 660,310 | $56.3M | 3.08% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 689,077 | $58.7M | 0.03% | −165,297−19.3% | Reduced |
| Deep Track Capital, LP | 700,000 | $59.6M | 0.88% | −674,320−49.1% | Reduced |
| Balyasny Asset Management LLC | 711,676 | $60.6M | 0.11% | −280,869−28.3% | Reduced |
| Foresite Capital Management IV, LLC | 714,695 | $60.9M | 20.98% | +211,400+42.0% | Added |
| Fisher Asset Management, LLC | 743,697 | $63.4M | 0.02% | −24,567−3.2% | Reduced |
| Siren, L.L.C. | 758,952 | $64.7M | 1.31% | +145,000+23.6% | Added |
| Melqart Asset Management (UK) Ltd | 767,525 | $65.4M | 6.22% | −76,424−9.1% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 827,810 | $70.5M | 0.07% | +113,466+15.9% | Added |
| Franklin Resources Inc | 891,087 | $75.9M | 0.02% | +481,303+117.5% | Added |
| Vanguard Fiduciary Trust Co | 906,423 | $77.2M | 0.02% | +106,801+13.4% | Added |
| GW&K Investment Management, LLC | 916,107 | $78.0M | 0.61% | +421,488+85.2% | Added |
| Nomura Asset Management International Inc. | 961,815 | $81.9M | 0.12% | +913,332+1,883.8% | Added |
| Royalty Pharma Sub-Manager, LLC | 980,392 | $83.5M | 34.52% | 00.0% | Unchanged |
| Norges Bank | 1,015,522 | $86.5M | 0.01% | +1,015,522 | New |
| D. E. Shaw & Co., Inc. | 1,048,103 | $89.3M | 0.06% | +341,472+48.3% | Added |
| Woodline Partners LP | 1,100,708 | $93.8M | 0.29% | +100,280+10.0% | Added |
| Holocene Advisors, LP | 1,144,579 | $97.5M | 0.22% | +1,144,579 | New |
| Bank of New York Mellon Corp | 1,150,697 | $98.0M | 0.02% | +144,512+14.4% | Added |
| Frazier Life Sciences Management, L.P. | 1,159,879 | $98.8M | 2.15% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 1,160,463 | $99.0M | 0.09% | +409,510+54.5% | Added |
| UBS Group AG | 1,171,287 | $99.8M | 0.02% | −905,990−43.6% | Reduced |
| Armistice Capital, LLC | 1,201,342 | $102.3M | 2.83% | +436,804+57.1% | Added |
| Invesco Ltd. | 1,235,323 | $105.2M | 0.01% | +750,343+154.7% | Added |
| Capital International Investors | 1,305,848 | $111.2M | 0.02% | −32,955−2.5% | Reduced |
| Principal Financial Group Inc | 1,311,664 | $111.7M | 0.05% | +218,179+20.0% | Added |
| Morgan Stanley | 1,510,318 | $128.7M | 0.01% | +5,243+0.3% | Added |
| Susquehanna International Group, LLP | 1,549,458 | $132.0M | 0.12% | +650,507+72.4% | Added |
| Charles Schwab Investment Management Inc | 1,565,781 | $133.4M | 0.02% | +168,736+12.1% | Added |
| Point72 Asset Management, L.P. | 1,587,712 | $135.3M | 0.21% | +961,610+153.6% | Added |
| Integral Health Asset Management, LLC | 1,600,000 | $136.3M | 5.59% | 00.0% | Unchanged |
| William Blair Investment Management, LLC | 1,603,442 | $136.6M | 0.41% | +515,851+47.4% | Added |
| JPMorgan Chase & Co | 1,588,895 | $139.2M | 0.01% | +685,090+75.8% | Added |
| Northern Trust Corp | 1,647,345 | $140.3M | 0.02% | +205,711+14.3% | Added |
| Capital Research Global Investors | 1,686,625 | $143.7M | 0.02% | +915,626+118.8% | Added |
| Goldman Sachs Group Inc | 1,761,588 | $150.1M | 0.02% | −444,170−20.1% | Reduced |
| Price T Rowe Associates Inc | 1,958,946 | $166.9M | 0.02% | +374,625+23.6% | Added |
| Polar Capital Holdings Plc | 2,253,649 | $192.0M | 0.54% | +592,401+35.7% | Added |
| RTW Investments, LP | 2,862,003 | $243.8M | 2.08% | +140,845+5.2% | Added |
| Geode Capital Management, LLC | 3,712,501 | $316.3M | 0.02% | +497,086+15.5% | Added |
| Bank of America Corp | 4,635,709 | $394.9M | 0.03% | +1,510,273+48.3% | Added |
| Avoro Capital Advisors LLC | 4,999,999 | $425.9M | 3.82% | +1,666,666+50.0% | Added |
| FMR LLC | 5,031,782 | $428.7M | 0.02% | −5,691,358−53.1% | Reduced |
| Vanguard Capital Management LLC | 6,117,515 | $521.2M | 0.01% | +628,881+11.5% | Added |
| State Street Corp | 6,494,233 | $553.2M | 0.02% | +749,040+13.0% | Added |
| Vanguard Portfolio Management LLC | 6,711,799 | $571.8M | 0.03% | +868,017+14.9% | Added |
| Wellington Management Group LLP | 6,931,770 | $590.5M | 0.10% | −1,077,719−13.5% | Reduced |
| T. Rowe Price Investment Management, Inc. | 18,718,498 | $1.59B | 1.05% | +1,194,658+6.8% | Added |
| BlackRock, Inc. | 20,094,362 | $1.71B | 0.03% | +3,546,351+21.4% | Added |
| ABS Investment Management LLC | 85 | – | – | +85 | New |
| Paradigm Biocapital Advisors LP | 0 | $0 | 0.00% | −1,480,857−100.0% | Sold out |
| Logos Global Management LP | 0 | $0 | 0.00% | −875,000−100.0% | Sold out |
| MPM Oncology Impact Management LP | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −363,997−100.0% | Sold out |
| Vestal Point Capital, LP | 0 | $0 | 0.00% | −300,000−100.0% | Sold out |
| Ikarian Capital, LLC | 0 | $0 | 0.00% | −283,572−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −245,000−100.0% | Sold out |
| Catalio Capital Management, LP | 0 | $0 | 0.00% | −215,501−100.0% | Sold out |
| Monashee Investment Management LLC | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Sofinnova Investments, Inc. | 0 | $0 | 0.00% | −91,791−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −71,203−100.0% | Sold out |
| Tyro Capital Management LLC | 0 | $0 | 0.00% | −64,666−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −31,216−100.0% | Sold out |
| Knott David M Jr | 0 | $0 | 0.00% | −23,644−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −23,491−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −22,200−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −21,813−100.0% | Sold out |
| Sanders Morris Harris LLC | 0 | $0 | 0.00% | −21,505−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −20,350−100.0% | Sold out |