CYTK — CYTOKINETICS INC
As of Q2 2026, 41 SEC-registered investment managers reported holding CYTK (CYTOKINETICS INC) in their latest 13F filings, with a combined reported value of $3.68B across 119.78M shares. That is +20.8% by share count (+20.66M shares) versus the previous quarter, while reported value moved +58.3%. Ownership is concentrated: the five largest holders account for 67.4% of reported value and the top ten for 83.4%.
Compared with the prior quarter, 2 opened new positions, 25 added to existing stakes, 10 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
CYTK is classified in the Health Care sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| BlackRock Inc history | Q2 2026 | 20.09M | $1.71B | 0.03% | Add |
| Vanguard Group history | Q4 2025 | 12.05M | $765.54M | 0.01% | Add |
| Geode Capital Management history | Q2 2026 | 3.71M | $316.33M | 0.02% | Add |
| Citadel Advisors history | Q2 2026 | 1.97M | $167.55M | 0.02% | Add |
| Capital Research Global Investors history | Q2 2026 | 1.69M | $143.68M | 0.02% | Add |
| Northern Trust Corp history | Q2 2026 | 1.65M | $140.34M | 0.02% | Add |
| Point72 Asset Management history | Q2 2026 | 1.59M | $135.31M | 0.16% | Add |
| Charles Schwab Investment Management history | Q2 2026 | 1.57M | $133.39M | 0.02% | Add |
| Principal Global Investors history | Q2 2026 | 1.31M | $111.74M | 0.06% | Add |
| Invesco Ltd history | Q2 2026 | 1.24M | $105.24M | 0.01% | Add |
| UBS Group AG history | Q2 2026 | 1.17M | $99.78M | 0.01% | Reduce |
| D. E. Shaw & Co history | Q2 2026 | 1.05M | $89.29M | 0.05% | Add |
| Norges Bank Investment Management history | Q2 2026 | 1.02M | $86.51M | 0.01% | Add |
| Franklin Resources history | Q2 2026 | 891.09K | $75.91M | 0.02% | Add |
| Balyasny Asset Management history | Q2 2026 | 35.64M | $60.73M | 0.08% | Hold |
| MFS Investment Management history | Q2 2026 | 549.35K | $46.80M | 0.02% | Add |
| Marshall Wace history | Q2 2026 | 451.47K | $38.46M | 0.03% | Reduce |
| Two Sigma Investments history | Q2 2026 | 15.77M | $26.80M | 0.02% | Add |
| Capital World Investors history | Q2 2026 | 248.81K | $21.20M | 0.00% | Add |
| Janus Henderson Group history | Q1 2026 | 282.12K | $18.59M | 0.01% | Add |
New Positions (Q2 2026)
- CPP Investments 11.20K sh · $954.13K
- JPMorgan Chase & Co 150.00K sh · $243.91K
Fully Exited (vs previous quarter)
- Janus Henderson Group sold 282.12K sh · $18.59M
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q3 2021 | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | — | 4.28M | 4.88M | 5.58M | 5.38M | 15.53M | 16.40M | 16.55M | 20.09M |
| Geode Capital Management | 1.40M | 1.43M | 1.47M | 1.48M | 1.59M | 1.66M | 1.73M | 1.91M | 1.98M | 2.09M | 2.25M | 2.74M | 2.85M | 2.84M | 2.94M | 2.99M | 3.04M | 3.06M | 3.22M | 3.71M |
| Citadel Advisors | 373.21K | 89.33K | 307.25K | 4.71M | 560.96K | 196.06K | 62.40K | 1.01M | 1.40M | 4.00M | 44.35M | 1.23M | 1.32M | 1.76M | 1.51M | 1.70M | 1.76M | 1.57M | 1.55M | 1.97M |
| Capital Research Global Investors | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 771.00K | 1.69M |
| Northern Trust Corp | 1.01M | 1.01M | 964.79K | 971.67K | 992.35K | 1.01M | 1.01M | 1.10M | 1.07M | 1.06M | 1.11M | 1.28M | 1.33M | 1.47M | 1.45M | 1.38M | 1.41M | 1.38M | 1.44M | 1.65M |
| Point72 Asset Management | 1.01M | 885.45K | 1.62M | 19.63K | 32.00K | 271.50K | — | 160.40K | 40.00K | 17.00M | 15.00M | 414.85K | 524.01K | 269.91K | 29.65M | 55.00K | 521.48K | 37.20K | 661.00K | 1.59M |
| Charles Schwab Investment Management | 611.53K | 584.67K | 600.49K | 607.00K | 705.21K | 726.08K | 722.68K | 771.08K | 756.71K | 789.97K | 775.56K | 925.68K | 1.32M | 1.34M | 1.31M | 1.36M | 1.37M | 1.38M | 1.40M | 1.57M |
| Principal Global Investors | 599.23K | 677.12K | 658.15K | 673.27K | 612.45K | 665.38K | 582.90K | 555.72K | 525.28K | 521.17K | 431.56K | 393.58K | 273.08K | 271.13K | 629.91K | 1.18M | 1.17M | 976.89K | 1.09M | 1.31M |
| Invesco Ltd | 427.06K | 759.67K | 398.65K | 547.60K | 1.41M | 1.45M | 1.48M | 1.50M | 1.18M | 1.24M | 1.32M | 1.10M | 1.00M | 1.00M | 501.88K | 136.31K | 157.25K | 204.88K | 484.98K | 1.24M |
| UBS Group AG | 134.50K | 244.37K | 248.02K | 164.48K | 210.90K | 335.22K | 266.93K | 318.10K | 287.97K | 360.11K | 298.74K | 299.60K | 314.16K | 1.20M | 581.00K | 3.07M | 1.82M | 1.13M | 2.10M | 1.17M |
| D. E. Shaw & Co | — | 106.28K | — | — | 41.94K | — | — | — | 27.33M | 29.33M | 100.85K | 119.30K | 131.09K | 84.30K | 86.00K | 128.48K | 104.70K | 200.72K | 747.33K | 1.05M |
| Norges Bank Investment Management | — | — | — | — | — | 839.36K | — | — | — | 722.23K | — | 799.66K | — | 989.72K | — | 1.18M | — | 807.07K | — | 1.02M |
| Franklin Resources | 1.00M | 1.04M | 1.09M | 1.09M | 1.11M | 1.11M | 1.08M | 1.12M | 1.13M | 660.68K | 2.63M | 1.95M | 536.45K | 545.81K | 537.62K | 402.79K | 409.73K | 409.99K | 409.78K | 891.09K |
| Balyasny Asset Management | 36.91K | 9.91K | — | 188.64K | 283.25K | 881.41K | 952.00K | 1.07M | 1.22M | 21.00M | 38.50M | 802.47K | 122.19K | — | — | — | 360.60K | 358.50K | 35.64M | 35.64M |
| MFS Investment Management | — | — | — | — | — | — | — | — | — | — | — | 276.07K | 344.45K | 319.28K | 319.53K | 497.60K | 496.67K | 327.20K | 311.65K | 549.35K |
| Marshall Wace | — | 44.17K | 30.91K | 1.35M | 955.89K | 1.01M | 745.31K | 255.39K | 1.53M | 626.09K | 2.56M | 1.68M | 1.87M | 2.15M | 2.03M | 21.23K | 178.98K | 337.03K | 656.61K | 451.47K |
| Two Sigma Investments | 678.57K | 588.74K | 87.33K | — | 22.55K | 175.46K | 215.08K | 42.60K | 96.66K | 106.84K | 85.34K | 58.60K | 258.92K | 91.17K | 44.16K | — | — | 8.50M | 285.01K | 15.77M |
| Capital World Investors | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 242.04K | 248.81K |
| Deutsche Bank AG | 135.59K | 92.29K | 87.51K | 83.26K | 175.69K | 194.00K | 219.48K | 201.11K | 206.77K | 565.15K | 121.21K | 119.66K | 134.93K | 880.00K | 880.00K | 270.00K | 165.56K | 175.80K | 187.14K | 216.54K |
| Prudential Financial | 89.22K | 88.60K | 88.60K | 88.38K | 97.30K | 96.21K | 93.02K | 119.21K | 113.42K | 111.67K | 35.53K | 27.64K | 30.49K | 25.34K | 35.23K | 26.22K | 43.33K | 42.03K | 59.42K | 214.53K |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
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