Cytokinetics Ownership | Who Owns Cytokinetics?
Cytokinetics Ownership Summary
Cytokinetics is owned by 131.25% institutional investors, 0.65% insiders. Blackrock funding, inc. /de is the largest institutional shareholder, holding 16.30% of CYTK shares. T. Rowe Price Capital Appreciation is the top mutual fund, with 4.63% of its assets in Cytokinetics shares.
CYTK Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Cytokinetics | 131.25% | 0.65% | -31.90% |
| Sector | Healthcare Stocks | 50.50% | 12.33% | 37.17% |
| Industry | Biotech Stocks | 49.09% | 12.06% | 38.85% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 20.09M | 16.30% | $1.71B |
| T. rowe price investment management | 18.72M | 15.18% | $1.59B |
| Blackrock | 14.67M | 14.40% | $794.97M |
| Vanguard group | 12.05M | 10.04% | $765.54M |
| Wellington management group llp | 6.93M | 5.62% | $590.52M |
| State street | 6.49M | 5.27% | $553.24M |
| Vanguard capital management | 6.12M | 4.96% | $521.15M |
| Fmr | 5.03M | 4.08% | $428.66M |
| Avoro capital advisors | 5.00M | 4.06% | $425.95M |
| Bank of america corp /de/ | 4.64M | 3.76% | $394.92M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Rp management | 980.39K | 22.73% | $51.76M |
| Foresite capital management iv | 714.70K | 20.98% | $60.88M |
| Sarissa capital management lp | 228.62K | 10.95% | $19.48M |
| Checkpoint capital | 475.00K | 10.38% | $40.47M |
| Melqart asset management (uk) | 767.52K | 6.22% | $65.39M |
| Boxer capital | 2.10M | 5.99% | $113.78M |
| Integral health asset management | 1.60M | 5.38% | $136.30M |
| Gsk | 340.43K | 4.82% | $29.00M |
| First turn management | 527.41K | 4.81% | $44.93M |
| Avoro capital advisors | 5.00M | 3.82% | $425.95M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Blackrock funding, inc. /de | 20.09M | 0.03% | 3.55M |
| Blackrock | 14.67M | 0.02% | 2.26M |
| Avoro capital advisors | 5.00M | 3.82% | 1.67M |
| Sixth street partners management company | 1.57M | 0.02% | 1.57M |
| Bank of america corp /de/ | 4.64M | 0.03% | 1.51M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fmr | 5.03M | 0.02% | -5.69M |
| Darwin global management | - | - | -4.58M |
| Paradigm biocapital advisors lp | - | - | -1.48M |
| Westfield capital management co lp | - | - | -1.31M |
| Wellington management group llp | 6.93M | 0.10% | -1.08M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Sixth street partners management company | 1.57M | 0.02% | 1.57M | $133.39M |
| Holocene advisors, lp | 1.14M | 0.22% | 1.14M | $97.51M |
| Norges bank | 1.02M | 0.01% | 1.02M | $86.51M |
| Polaris capital management | 266.90K | 2.14% | 266.90K | $22.74M |
| Baker bros. advisors lp | 211.27K | 0.09% | 211.27K | $18.00M |
Sold Out
| Holder | Change |
|---|---|
| New england capital financial advisors | -1.00 |
| Td private client wealth | -2.00 |
| Financial gravity asset management | -2.00 |
| Strategic advocates | -2.00 |
| Ross\johnson & associates | -2.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 507 | 3.05% | 161,798,316 | 10.76% | 131 | 0.92% | 333 | 28.57% | 103 | -26.43% |
| Mar 31, 2026 | 258 | -45.45% | 51,788,965 | -62.86% | 43 | 0.32% | 147 | -42.35% | 69 | -46.92% |
| Dec 31, 2025 | 328 | -22.64% | 72,535,010 | -48.66% | 60 | 0.43% | 182 | -19.82% | 87 | -18.69% |
| Sep 30, 2025 | 403 | 16.47% | 144,458,231 | 4.66% | 120 | 0.91% | 217 | 25.43% | 105 | -0.94% |
| Jun 30, 2025 | 344 | -10.88% | 137,969,518 | 1.88% | 115 | 0.88% | 171 | -14.50% | 106 | -0.93% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| T. Rowe Price Capital Appreciation | 6.29M | 4.63% | 1.18M |
| iShares Core S&P Mid-Cap ETF | 4.66M | 3.36% | 143.00 |
| Vanguard Morn Total Stk Mkt Idx Investor | 4.32M | 3.18% | 30.41K |
| Vanguard Total Stock Mkt Idx Inv | 4.32M | 3.18% | 30.41K |
| Vanguard US Total Market Shares ETF | 3.75M | 3.15% | 128.42K |
| iShares Russell 2000 ETF | 3.34M | 2.41% | -59.42K |
| Vanguard Small Cap Index | 3.11M | 2.29% | 23.91K |
| Vanguard Health Care Inv | 3.11M | 2.24% | -958.85K |
| American Funds SMALLCAP World A | 3.00M | 2.21% | 882.15K |
| SPDR® S&P Biotech ETF | 2.07M | 1.73% | 4.61K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 18, 2026 | Malik Fady Ibraham | EVP Research & Development | Sell | $265.37K |
| Aug 10, 2026 | Blum Robert I | President & CEO | Sell | $575.70K |
| Jul 30, 2026 | Callos Andrew | EVP, Chief Commercial Officer | Sell | $1.12M |
| Jul 27, 2026 | Blum Robert I | President & CEO | Sell | $606.52K |
| Jul 21, 2026 | Malik Fady Ibraham | EVP Research & Development | Sell | $282.06K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | 10 |
| 2026 Q2 | - | 25 |
| 2026 Q1 | - | 22 |
| 2025 Q4 | - | 20 |
| 2025 Q3 | - | 15 |
CYTK Ownership FAQ
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