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CYTK · Cytokinetics Inc · Holdings

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$63.90 +1.20 (+1.91%)
Market Cap
$9.20B
Shares
139.02M
Volume · Oct 5 3.23M Avg daily vol (3M) 1.95M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 488
Total Value: $14,294,987,476
Total Shares: 167,801,353
Showing 1–100 of 511 holdings by value · page 1 of 6

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 489 13F filers
Top Holder
12.0%
Sep 2023 → Jun 2026 · range 9.6% – 14.1%
of institutional value
Top 5
35.1%
Sep 2023 → Jun 2026 · range 33.7% – 46.5%
of institutional value
Top 10
49.7%
Sep 2023 → Jun 2026 · range 46.4% – 58.6%
of institutional value
HHI
395
Sep 2023 → Jun 2026 · range 331 – 545
Broadly held
Showing 100 of 511
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1061983 CUSIP 23282W605 13F (30d) 10 filings 9 filers Visit website Investor relations