Cytokinetics, Incorporated (CYTK) Institutional Ownership & Insider Trading

480 institutions reported holding Cytokinetics, Incorporated shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 91 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

CYTKCytokinetics, IncorporatedFollow CYTK — free

Biotechnology · Healthcare

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Market cap: 8.5B
P/E TTM: —
Dividend yield: —
52-week: —
Next earnings: 4 Nov, in 11 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

480 institutions held —% of the shares. Across filers that reported both quarters, shares held changed +9.1%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	480	160	+9.1%	227	79	96	36
Mar 26	437	146	-1.3%	161	61	119	52
Dec 25	423	148	+3.0%	133	69	121	38
Sep 25	372	142	+4.4%	114	87	88	20
Jun 25	310	138	+1.0%	131	21	98	62
Mar 25	349	135	+3.7%	127	44	97	37
Dec 24	342	131	-3.6%	105	26	117	39
Sep 24	341	135	-0.8%	132	38	85	34

Cytokinetics, Incorporated — questions

Who owns Cytokinetics, Incorporated stock?: 480 institutions reported Cytokinetics, Incorporated shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (14.4%), T. Rowe Price Investment Management, Inc. (13.5%), WELLINGTON MANAGEMENT GROUP LLP (5.0%).
Are Cytokinetics, Incorporated insiders buying or selling?: 91 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Cytokinetics, Incorporated's own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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