Cytokinetics
CYTK · NASDAQ
$63.95+$1.30 (+2.08%)TodayMarket closed ·
Prev close $62.65
Who owns CYTK
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 57.3% of CYTK’s shares.
- T. Rowe Price Investment Management, Inc.13.8%
- BlackRock Institutional Trust Company, N.A.12.0%
- Wellington Management Company, LLP5.1%
- Vanguard Portfolio Management, LLC5.0%
- Next 6 largest institutions21.5%
- All other shareholders42.7%
| Holder | Shares | % of shares |
|---|---|---|
| T. Rowe Price Investment Management, Inc. | 18.72M | 13.81% |
| BlackRock Institutional Trust Company, N.A. | 16.24M | 11.98% |
| Wellington Management Company, LLP | 6.93M | 5.11% |
| Vanguard Portfolio Management, LLC | 6.71M | 4.95% |
| State Street Investment Management (US) | 6.49M | 4.79% |
| Vanguard Capital Management, LLC | 6.12M | 4.51% |
| Avoro Capital Advisors LLC | 5.00M | 3.69% |
| Fidelity Management & Research Company LLC | 4.81M | 3.54% |
| Geode Capital Management, L.L.C. | 3.71M | 2.74% |
| Bank of America Private Bank | 2.95M | 2.18% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| T. Rowe Price Capital Appreciation Fund | 6.29M | 4.64% |
| iShares Core S&P Mid-Cap ETF | 4.75M | 3.51% |
| Vanguard Total Stock Market Index Fund | 4.33M | 3.19% |
| iShares Russell 2000 ETF | 3.40M | 2.51% |
| Vanguard Small-Cap Index Fund | 3.12M | 2.30% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $28.18M (41 trades) of CYTK on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Blum Robert I | Option exercise | 7.50K | — |
| Blum Robert I | Sale | 7.50K | $471.60K |
| Blum Robert I | Option exercise | 7.50K | $79.50K |
| Malik Fady Ibraham | Option exercise | 3.50K | — |
| Malik Fady Ibraham | Sale | 3.50K | $214.83K |
| Malik Fady Ibraham | Option exercise | 3.50K | $27.30K |
| Blum Robert I | Option exercise | 7.50K | — |
| Blum Robert I | Sale | 7.50K | $490.95K |
| Blum Robert I | Option exercise | 7.50K | $79.50K |
| Malik Fady Ibraham | Option exercise | 3.50K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 19.33M
- Days to cover
- 8.37
- % of shares outstanding
- 14.26%
- Average daily volume
- 2.31M
- Change since last report
- +10.6%
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