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Who owns Cytokinetics (CYTK) stock

462 funds reported Cytokinetics (CYTK) shares in their latest 13F filings, worth $14.0B in all. The largest holder is BlackRock ($1.7B). Last quarter 296 funds added to their stakes and 142 cut them. Members of Congress and other officials disclosed 2 trades (2 buys, 0 sales).

Largest holders of CYTK (13F)Largest holders of CYTK (13F)BlackRock$1.7BT. Rowe Price Investment Manageme…$1.6BVanguard Group$766MWellington Management Group LLP$591MVanguard Portfolio Management LLC$572MState Street$553MVanguard Capital Management LLC$521MFMR LLC$429MAvoro Capital Advisors LLC$426MBank of America$395M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock20,094,362$1.7Bincrease2026-06-30
T. Rowe Price Investment Management18,718,498$1.6Bincrease2026-06-30
Vanguard Group12,048,131$766Mincrease2025-12-31
Wellington Management Group LLP6,931,770$591Mdecrease2026-06-30
Vanguard Portfolio Management LLC6,711,799$572Mincrease2026-06-30
State Street6,494,233$553Mincrease2026-06-30
Vanguard Capital Management LLC6,117,515$521Mincrease2026-06-30
FMR LLC5,031,782$429Mdecrease2026-06-30
Avoro Capital Advisors LLC4,999,999$426Mincrease2026-06-30
Bank of America4,635,709$395Mincrease2026-06-30
Geode Capital Management, LLC3,712,501$316Mincrease2026-06-30
RTW Investments, LP2,862,003$244Mincrease2026-06-30
Polar Capital Holdings2,253,649$192Mincrease2026-06-30
Price T Rowe Associates1,958,946$167Mincrease2026-06-30
Goldman Sachs Group1,761,588$150Mdecrease2026-06-30

Trades by Congress and other officials

DateWhoTradeAmount
2026-09-29Gilbert Cisnerospurchase$1K–$15K
2026-06-30Gilbert Cisnerospurchase$1K–$15K

Cytokinetics' latest quarter

Cytokinetics, Q3 2026: revenue $47.6M (25× year over year), operating margin -351.3%, net loss $190M, operating cash flow −$124M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most CYTK stock?

By the latest 13F filings: BlackRock ($1.7B); T. Rowe Price Investment Management ($1.6B); Vanguard Group ($766M); Wellington Management Group LLP ($591M); Vanguard Portfolio Management LLC ($572M).

Has Congress traded CYTK stock?

Officials disclosed 2 trades on file: 2 buys and 0 sales. The latest: Gilbert Cisneros, purchase on 2026-09-29.

What is the short interest in CYTK?

18,628,116 shares were sold short at the 2026-10-15 settlement, -3.65% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.