Who owns Cytokinetics, Incorporated?
Institutional ownership of CYTK from SEC Form 13F filings across 298 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
298
13F holders
$8.62B
value, 2026 filers
83.5%
of shares outstanding (103.9M sh)
55
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of CYTK's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 20.1M | $1.71B | 0.0% | 16.1% | +21.4% |
| 2 | WELLINGTON MANAGEMENT GROUP LLP | 6.9M | $590.5M | 0.1% | 5.6% | -13.5% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 6.7M | $571.8M | 0.0% | 5.4% | +14.9% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 6.1M | $521.2M | 0.0% | 4.9% | -44.3% |
| 5 | FMR LLC | 5.0M | $428.7M | 0.0% | 4% | -53.1% |
| 6 | BANK OF AMERICA CORP /DE/ | 4.6M | $394.9M | 0.0% | 3.7% | +48.3% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 3.7M | $316.3M | 0.0% | 3% | +15.5% |
| 8 | PRICE T ROWE ASSOCIATES INC /MD/ | 2.0M | $166,884 | 0.0% | 1.6% | +23.6% |
| 9 | GOLDMAN SACHS GROUP INC | 1.8M | $150.1M | 0.0% | 1.4% | -20.1% |
| 10 | Capital Research Global Investors | 1.7M | $143.7M | 0.0% | 1.4% | +118.8% |
| 11 | NORTHERN TRUST CORP | 1.6M | $140.3M | 0.0% | 1.3% | +14.3% |
| 12 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.6M | $136.6M | 0.4% | 1.3% | +47.4% |
| 13 | JPMORGAN CHASE & CO | 1.6M | $139.2M | 0.0% | 1.3% | +75.8% |
| 14 | Point72 Asset Management, L.P. | 1.6M | $135.3M | 0.1% | 1.3% | +153.6% |
| 15 | Sixth Street Partners Management Company, L.P.NEW | 1.6M | $133.4M | 23.0% | 1.3% | new |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.6M | $133.4M | 0.0% | 1.3% | +12.1% |
| 17 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.5M | $132.0M | 0.0% | 1.2% | +72.4% |
| 18 | MORGAN STANLEY | 1.5M | $128.7M | 0.0% | 1.2% | +0.3% |
| 19 | PRINCIPAL FINANCIAL GROUP INC | 1.3M | $111.7M | 0.1% | 1.1% | +20.0% |
| 20 | Capital International Investors | 1.3M | $111.2M | 0.0% | 1% | -2.5% |
| 21 | Invesco Ltd. | 1.2M | $105.2M | 0.0% | 1% | +154.7% |
| 22 | UBS Group AG | 1.2M | $99.8M | 0.0% | 0.9% | -43.6% |
| 23 | Pictet Asset Management Holding SA | 1.2M | $99.0M | 0.1% | 0.9% | +54.5% |
| 24 | Bank of New York Mellon Corp | 1.2M | $98.0M | 0.0% | 0.9% | +14.4% |
| 25 | Woodline Partners LP | 1.1M | $93.8M | 0.3% | 0.9% | -45.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.