Security record
CYTK
Cytokinetics, Incorporated · Healthcare · Biotechnology
128Tracked holders
+7Δ holders
95.71MShares held
$8.15BReported value
+10New positions
−2Exits
Momentum inputs (comparable managers):
holder breadth +5.8% ·
share flow +8.1% ·
net new positions +6.2%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 128 | +7 | 95.71M | $8.15B | +10 | −2 |
| Q1 2026 | 123 | +1 | 87.96M | $5.79B | +8 | −8 |
| Q4 2025 | 121 | -1 | 92.45M | $5.87B | +2 | −2 |
| Q3 2025 | 19 | +2 | 69.14M | $3.80B | +2 | −1 |
| Q2 2025 | 15 | -2 | 62.06M | $2.05B | — | −2 |
| Q1 2025 | 14 | +1 | 26.36M | $1.06B | +1 | — |
| Q4 2024 | 13 | -1 | 25.19M | $1.18B | — | −1 |
| Q3 2024 | 13 | +2 | 19.21M | $1.01B | +2 | — |
| Q2 2024 | 11 | — | 17.42M | $943.61M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 20.09M | +21.4% | $1.71B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 19 | Wellington Management ✦ | 6.93M | -13.5% | $590.52M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 20 | Wellington Management ✦ | 6.93M | -13.5% | $590.52M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 21 | Wellington Management ✦ | 6.93M | -13.5% | $590.52M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 22 | Wellington Management ✦ | 6.93M | -13.5% | $590.52M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 23 | Wellington Management ✦ | 6.93M | -13.5% | $590.52M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 24 | Wellington Management ✦ | 6.93M | -13.5% | $590.52M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 25 | Wellington Management ✦ | 6.93M | -13.5% | $590.52M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 26 | Wellington Management ✦ | 6.93M | -13.5% | $590.52M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 27 | State Street Global Advisors ✦ (passive) | 6.49M | +13.0% | $553.24M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 28 | Vanguard Capital Management Llc | 6.12M | +11.5% | $521.15M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | Fidelity (FMR) ✦ | 5.03M | -53.1% | $428.66M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 30 | Fidelity (FMR) ✦ | 5.03M | -53.1% | $428.66M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 31 | Fidelity (FMR) ✦ | 5.03M | -53.1% | $428.66M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 32 | Fidelity (FMR) ✦ | 5.03M | -53.1% | $428.66M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 33 | Fidelity (FMR) ✦ | 5.03M | -53.1% | $428.66M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 34 | Fidelity (FMR) ✦ | 5.03M | -53.1% | $428.66M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 35 | Bank Of America Corp /De/ | 4.64M | +48.3% | $394.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 36 | Bank Of America Corp /De/ | 4.64M | +48.3% | $394.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 37 | Bank Of America Corp /De/ | 4.64M | +48.3% | $394.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 38 | Bank Of America Corp /De/ | 4.64M | +48.3% | $394.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 39 | Bank Of America Corp /De/ | 4.64M | +48.3% | $394.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 40 | Geode Capital Management ✦ (passive) | 3.71M | +15.5% | $316.33M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 41 | Geode Capital Management ✦ (passive) | 3.71M | +15.5% | $316.33M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 42 | T. Rowe Price ✦ | 1.96M | +23.6% | $166.88M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 43 | T. Rowe Price ✦ | 1.96M | +23.6% | $166.88M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 44 | Goldman Sachs Group ✦ | 1.76M | -20.1% | $150.07M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 45 | Goldman Sachs Group ✦ | 1.76M | -20.1% | $150.07M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 46 | Goldman Sachs Group ✦ | 1.76M | -20.1% | $150.07M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 47 | Goldman Sachs Group ✦ | 1.76M | -20.1% | $150.07M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 48 | Goldman Sachs Group ✦ | 1.76M | -20.1% | $150.07M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 49 | Goldman Sachs Group ✦ | 1.76M | -20.1% | $150.07M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 50 | Capital Research Global Investors | 1.69M | +118.8% | $143.68M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 51 | Northern Trust Corp | 1.65M | +14.3% | $140.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | Northern Trust Corp | 1.65M | +14.3% | $140.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Northern Trust Corp | 1.65M | +14.3% | $140.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Northern Trust Corp | 1.65M | +14.3% | $140.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 55 | Northern Trust Corp | 1.65M | +14.3% | $140.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 56 | Northern Trust Corp | 1.65M | +14.3% | $140.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 57 | Northern Trust Corp | 1.65M | +14.3% | $140.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 58 | JPMorgan Chase ✦ | 1.59M | +75.8% | $139.15M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 59 | JPMorgan Chase ✦ | 1.59M | +75.8% | $139.15M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 60 | JPMorgan Chase ✦ | 1.59M | +75.8% | $139.15M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 61 | JPMorgan Chase ✦ | 1.59M | +75.8% | $139.15M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 62 | JPMorgan Chase ✦ | 1.59M | +75.8% | $139.15M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 63 | JPMorgan Chase ✦ | 1.59M | +75.8% | $139.15M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 64 | Point72 Asset Management ✦ | 1.59M | +153.6% | $135.26M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 65 | Charles Schwab Investment… | 1.57M | +12.1% | $133.39M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Charles Schwab Investment… | 1.57M | +12.1% | $133.39M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Susquehanna International Group, Llp | 1.55M | +72.4% | $132.00M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 68 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 69 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 70 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 71 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 72 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 73 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 74 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 75 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 76 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 77 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 78 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 79 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 80 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 81 | Morgan Stanley ✦ | 1.51M | +0.3% | $128.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 82 | Principal Financial Group Inc | 1.31M | +19.9% | $111.74M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 83 | Principal Financial Group Inc | 1.31M | +19.9% | $111.74M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 84 | Capital International Investors | 1.31M | -2.5% | $111.25M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 85 | Invesco Ltd. | 1.24M | +154.7% | $105.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 86 | Invesco Ltd. | 1.24M | +154.7% | $105.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 87 | Invesco Ltd. | 1.24M | +154.7% | $105.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 88 | Invesco Ltd. | 1.24M | +154.7% | $105.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 89 | Invesco Ltd. | 1.24M | +154.7% | $105.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 90 | Invesco Ltd. | 1.24M | +154.7% | $105.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 91 | Invesco Ltd. | 1.24M | +154.7% | $105.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 92 | Invesco Ltd. | 1.24M | +154.7% | $105.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 93 | Invesco Ltd. | 1.24M | +154.7% | $105.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 94 | Invesco Ltd. | 1.24M | +154.7% | $105.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 95 | UBS Group AG | 1.17M | -43.6% | $99.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 96 | UBS Group AG | 1.17M | -43.6% | $99.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 97 | UBS Group AG | 1.17M | -43.6% | $99.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 98 | UBS Group AG | 1.17M | -43.6% | $99.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 99 | Pictet Asset Management Holding SA | 1.16M | +54.5% | $99.04M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 100 | Bank of New York Mellon Corp | 1.15M | +14.4% | $98.03M | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Group One Trading Llc | $23.99M | was 0.8% |
| Daiwa Securities Group Inc. | $1.46M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 437 holders, 145.17M shares, $8.22B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 18
Malik Fady Ibraham
Officer · 3.50K sh · $265,370
Aug 10
Blum Robert I
Officer, Director · 7.50K sh · $575,700
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 13
SC 13G/A — WELLINGTON MANAGEMENT GROUP LLP
Jul 08
SC 13G/A — FMR LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
Get this via the API