WallStreetZenWallStreetZen

NASDAQ: CYTK
Cytokinetics Inc Stock Ownership - Who owns Cytokinetics?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Cytokinetics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Robert I. BlumPresident CEO2026-05-147,500$77.92
$584.40kSell
Wendell WierengaDirector2026-05-054,032$75.00
$302.40kSell
Wendell WierengaDirector2026-05-054,032$12.40
$50.00kBuy
Fady Ibraham MalikEVP Research Development2026-05-053,500$77.37
$270.80kSell
Fady Ibraham MalikEVP Research Development2026-05-053,500$7.80
$27.30kBuy
John T. HendersonDirector2026-05-0520,000$75.97
$1.52MSell
Sung LeeEVP Chief Financial Officer2026-05-0523,906$76.87
$1.84MSell
John T. HendersonDirector2026-05-0520,000$7.61
$152.20kBuy
Andrew CallosEVP Chief Commercial Officer2026-05-0511,333$77.25
$875.47kSell
Andrew CallosEVP Chief Commercial Officer2026-05-0511,333$39.13
$443.46kBuy

1 of 16

CYTK insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when CYTK insiders and whales buy or sell their stock.

CYTK Shareholders

What type of owners hold Cytokinetics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Michael Schmertzler7.82%9,730,131$765.18MInsider
Vanguard Portfolio Management LLC4.70%5,843,782$459.56MInstitution
Vanguard Capital Management LLC4.41%5,488,634$431.63MInstitution
Eastern Capital Ltd2.32%2,883,845$226.79MInsider
Ubs Group Ag1.67%2,077,277$163.36MInstitution
Principal Financial Group Inc0.88%1,093,485$85.99MInstitution
William Blair Investment Management LLC0.87%1,087,591$85.53MInstitution
Bank Of New York Mellon Corp0.81%1,006,185$79.13MInstitution
Bnp Paribas Financial Markets0.69%854,374$67.19MInstitution
Melqart Asset Management Uk Ltd0.68%843,949$66.37MInstitution

1 of 3

CYTK vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
CYTK24.46%12.32%Net SellingNet Selling
PRAX13.70%50.55%Net Selling
KRYS21.41%24.13%Net SellingNet Selling
ABVX13.37%0.00%
BMRN31.66%1.78%Net SellingNet Selling
View Top Biotech Stocks

Cytokinetics Stock Ownership FAQ

Who owns Cytokinetics?

Cytokinetics (NASDAQ: CYTK) is owned by 24.46% institutional shareholders, 12.32% Cytokinetics insiders, and 63.22% retail investors. Michael Schmertzler is the largest individual Cytokinetics shareholder, owning 9.73M shares representing 7.82% of the company. Michael Schmertzler's Cytokinetics shares are currently valued at $738.03M.

If you're new to stock investing, here's how to buy Cytokinetics stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.