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 |
|---|---|---|---|---|---|
| Marex Group plc | 0 | $0 | 0.00% | −11,301−100.0% | Sold out |
| Creek Drive Management Group LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −8,810−100.0% | Sold out |
| PSP Research LLC | 0 | $0 | 0.00% | −8,300−100.0% | Sold out |
| VARCOV Co. | 0 | $0 | 0.00% | −7,805−100.0% | Sold out |
| Sig Brokerage, LP | 0 | $0 | 0.00% | −6,011−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −4,414−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −4,115−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −3,275−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −3,206−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −1,515−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −557−100.0% | Sold out |
| J.Safra Asset Management Corp | 0 | $0 | 0.00% | −309−100.0% | Sold out |
| Tradewinds Capital Management, LLC | 0 | $0 | 0.00% | −215−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −201−100.0% | Sold out |
| Rakuten Securities, Inc. | 0 | $0 | 0.00% | −170−100.0% | Sold out |
| Leonteq Securities AG | 0 | $0 | 0.00% | −160−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −152−100.0% | Sold out |
| Wolverine Asset Management LLC | 0 | $0 | 0.00% | −120−100.0% | Sold out |
| Elequin Capital LP | 0 | $0 | 0.00% | −75−100.0% | Sold out |
| Richardson Capital Management LLC | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| Rachor Investment Advisory Services, LLC | 0 | $0 | 0.00% | −36−100.0% | Sold out |
| Cullen/Frost Bankers, Inc. | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| Golden State Equity Partners | 0 | $0 | 0.00% | −30−100.0% | Sold out |
| Annis Gardner Whiting Capital Advisors, LLC | 0 | $0 | 0.00% | −17−100.0% | Sold out |
| Wealth Preservation Advisors, LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Vermillion Wealth Management, Inc. | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Ronald Blue Trust, Inc. | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| Deeter Investments LLP | – | – | – | – | Not filed |
| Skopos Labs, Inc. | – | – | – | – | Not filed |
| Cim Investment Mangement Inc | – | – | – | – | Not filed |
| Journey Strategic Wealth LLC | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |