Cytokinetics Inc
CYTK- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001061983
In the last 90 days, Cytokinetics Inc insiders filed 0 open-market purchases and 16 sales; 482 institutions reported holding it in 13F filings for Q2 2026, worth $13.7B in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Cytokinetics Inc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 431
- +58 vs. Q3 2025
- Shares held
- 139.5M
- −1.24M (−0.9%) vs. Q3 2025
- Total value
- $8.87B
- +$1.13B (+14.6%) vs. Q3 2025
- New holders
- 106
- 143 more added
- Sold out
- 48
- 134 more reduced
8 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CYTK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 482 | $13.7B |
| Q1 2026 | 441 | $9.63B |
| Q4 2025 | 431 | $8.87B |
| Q3 2025 | 381 | $7.75B |
| Q2 2025 | 312 | $4.55B |
| Q1 2025 | 356 | $5.48B |
| Q4 2024 | 347 | $6.18B |
| Q3 2024 | 348 | $7.20B |
| Q2 2024 | 344 | $7.34B |
| Q1 2024 | 390 | $8.26B |
| Q4 2023 | 347 | $9.54B |
| Q3 2023 | 251 | $3.22B |
| Q2 2023 | 253 | $3.55B |
| Q1 2023 | 263 | $3.83B |
| Q4 2022 | 278 | $4.88B |
| Q3 2022 | 276 | $5.08B |
| Q2 2022 | 263 | $4.16B |
| Q1 2022 | 240 | $3.52B |
| Q4 2021 | 250 | $4.16B |
| Q3 2021 | 211 | $3.22B |
| Q2 2021 | 191 | $1.50B |
| Q1 2021 | 193 | $1.74B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Cytokinetics Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| GAMMA Investing LLC | 2,056 | $130.6K | 0.01% | +584+39.7% | Added |
| Canada Pension Plan Investment Board | 2,100 | $133.4K | 0.00% | +2,100 | New |
| Jones Financial Companies LLLP | 2,230 | $141.7K | 0.00% | +372+20.0% | Added |
| NBC Securities, Inc. | 2,284 | $145.1K | 0.01% | +1,903+499.5% | Added |
| GF Fund Management Co. Ltd. | 2,402 | $152.6K | 0.00% | −172−6.7% | Reduced |
| Acadian Asset Management LLC | 2,541 | $160.0K | 0.00% | +2,541 | New |
| Bessemer Group Inc | 3,007 | $191.0K | 0.00% | +427+16.6% | Added |
| Assetmark, Inc | 3,025 | $192.2K | 0.00% | −338−10.1% | Reduced |
| Parallax Volatility Advisers, L.P. | 3,039 | $193.1K | 0.01% | +130+4.5% | Added |
| Ascent Group, LLC | 3,149 | $200.1K | 0.01% | +3,149 | New |
| Journey Strategic Wealth LLC | 3,183 | $202.2K | 0.01% | +3,183 | New |
| CIBC Asset Management Inc | 3,187 | $202.5K | 0.00% | +3,187 | New |
| Fifth Third Wealth Advisors LLC | 3,209 | $203.9K | 0.01% | +3,209 | New |
| Persistent Asset Partners Ltd | 3,214 | $204.2K | 0.10% | +3,214 | New |
| Fiduciary Trust Co | 3,249 | $206.4K | 0.00% | +3,249 | New |
| Pennington Partners & Co., LLC | 3,278 | $208.3K | 0.08% | +3,278 | New |
| Ellevest, Inc. | 3,324 | $211.2K | 0.03% | +3,324 | New |
| AE Wealth Management LLC | 3,396 | $215.8K | 0.00% | +3,396 | New |
| Evergreen Capital Management LLC | 3,401 | $216.1K | 0.00% | +3,401 | New |
| Bailard, Inc. | 3,425 | $217.6K | 0.00% | +3,425 | New |
| KBC Group NV | 3,470 | $220.0K | 0.00% | 00.0% | Unchanged |
| Meridian Financial, LLC | 3,583 | $227.7K | 0.12% | −535−13.0% | Reduced |
| Shay Capital LLC | 3,586 | $227.9K | 0.04% | −2,429−40.4% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 3,636 | $231.0K | 0.00% | +3,636 | New |
| Abel Hall, LLC | 3,666 | $232.9K | 0.05% | +3,666 | New |
| Blueshift Asset Management, LLC | 3,679 | $233.8K | 0.07% | +3,679 | New |
| HSBC Holdings PLC | 3,696 | $234.8K | 0.00% | −310−7.7% | Reduced |
| CIBC Private Wealth Group, LLC | 3,723 | $236.6K | 0.00% | +239+6.9% | Added |
| Sanctuary Advisors, LLC | 3,741 | $237.7K | 0.00% | +3,741 | New |
| OP Asset Management Ltd | 3,767 | $239.4K | 0.00% | +281+8.1% | Added |
| Meeder Advisory Services, Inc. | 3,809 | $242.0K | 0.01% | +3,809 | New |
| Oppenheimer & Co Inc | 3,922 | $249.2K | 0.00% | −450−10.3% | Reduced |
| Breakwater Capital Group | 3,941 | $250.4K | 0.03% | +2+0.1% | Added |
| Commerce Bank | 3,967 | $252.1K | 0.00% | +3,967 | New |
| LVW Advisors, LLC | 3,982 | $253.0K | 0.03% | 00.0% | Unchanged |
| Shelton Capital Management | 4,049 | $257.3K | 0.01% | +4,049 | New |
| Everence Capital Management Inc | 4,080 | $259.0K | 0.02% | 00.0% | Unchanged |
| Savant Capital, LLC | 4,104 | $260.8K | 0.00% | −104−2.5% | Reduced |
| Headlands Technologies LLC | 4,199 | $266.8K | 0.02% | +4,199 | New |
| Empowered Funds, LLC | 4,237 | $269.2K | 0.00% | −106−2.4% | Reduced |
| Virtus Investment Advisers, Inc. | 4,247 | $269.9K | 0.07% | +819+23.9% | Added |
| Arrowpoint Investment Partners (Singapore) Pte. Ltd. | 4,480 | $284.7K | 0.04% | +4,480 | New |
| Captrust Financial Advisors | 4,649 | $295.4K | 0.00% | +4,649 | New |
| MML Investors Services, LLC | 4,842 | $307.7K | 0.00% | +4,842 | New |
| Commonwealth Equity Services, LLC | 4,845 | $307.9K | 0.00% | −287−5.6% | Reduced |
| US Bancorp | 4,920 | $312.6K | 0.00% | +612+14.2% | Added |
| Virginia Retirement Systems Et Al | 4,950 | $314.5K | 0.00% | +4,950 | New |
| Tower Research Capital LLC (TRC) | 4,978 | $316.3K | 0.01% | −1,365−21.5% | Reduced |
| High Net Worth Advisory Group LLC | 5,000 | $317.7K | 0.07% | 00.0% | Unchanged |
| O'Shaughnessy Asset Management, LLC | 5,007 | $318.1K | 0.00% | +677+15.6% | Added |
| Swiss Life Asset Management Ltd | 5,142 | $326.7K | 0.00% | 00.0% | Unchanged |
| Intrust Bank NA | 5,169 | $328.4K | 0.03% | +616+13.5% | Added |
| FNY Investment Advisers, LLC | 5,260 | $334.0K | 0.10% | −3,354−38.9% | Reduced |
| AlphaCentric Advisors LLC | 5,311 | $337.5K | 0.34% | +5,311 | New |
| Coldstream Capital Management Inc | 5,320 | $338.0K | 0.00% | +568+12.0% | Added |
| Summit Trail Advisors, LLC | 5,388 | $342.4K | 0.01% | −376−6.5% | Reduced |
| Wolverine Asset Management LLC | 5,500 | $349.5K | 0.00% | +5,500 | New |
| Jasper Ridge Partners, L.P. | 5,500 | $349.5K | 0.01% | +5,500 | New |
| Aigen Investment Management, LP | 5,568 | $353.8K | 0.08% | +5,568 | New |
| Carlson Capital L P | 5,600 | $355.8K | 0.17% | +900+19.1% | Added |
| Y-Intercept (Hong Kong) Ltd | 5,790 | $367.9K | 0.01% | −18,942−76.6% | Reduced |
| Camden Capital, LLC | 5,889 | $374.2K | 0.02% | −700−10.6% | Reduced |
| Sectoral Asset Management Inc | 5,893 | $374.4K | 0.30% | −4,330−42.4% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 5,941 | $377.5K | 0.00% | +1,315+28.4% | Added |
| Alpine Global Management, LLC | 6,000 | $381.2K | 0.08% | +6,000 | New |
| VARCOV Co. | 6,013 | $382.1K | 0.15% | +6,013 | New |
| Los Angeles Capital Management LLC | 6,171 | $384.1K | 0.00% | +6,171 | New |
| Sterling Capital Management LLC | 6,142 | $390.3K | 0.01% | −1,091−15.1% | Reduced |
| Allspring Global Investments Holdings, LLC | 6,343 | $391.6K | 0.00% | +679+12.0% | Added |
| Banque Pictet & Cie SA | 6,184 | $392.9K | 0.00% | −1,455−19.0% | Reduced |
| J.Safra Asset Management Corp | 6,291 | $399.7K | 0.02% | +952+17.8% | Added |
| First Bank & Trust | 6,407 | $407.1K | 0.07% | +103+1.6% | Added |
| Cinctive Capital Management LP | 6,562 | $416.9K | 0.02% | −99,079−93.8% | Reduced |
| Amundi | 6,773 | $430.4K | 0.00% | +6,773 | New |
| Hantz Financial Services, Inc. | 6,844 | $435.0K | 0.01% | +2,231+48.4% | Added |
| Cerity Partners LLC | 6,874 | $436.8K | 0.00% | +6,874 | New |
| CI Private Wealth, LLC | 7,044 | $447.1K | 0.00% | +2,231+46.4% | Added |
| Quest Partners LLC | 7,224 | $459.0K | 0.03% | +2,365+48.7% | Added |
| Allianz Asset Management GmbH | 7,241 | $460.1K | 0.00% | +2,700+59.5% | Added |
| Ensign Peak Advisors, Inc | 7,296 | $463.6K | 0.00% | −13,200−64.4% | Reduced |
| CWM Advisors, LLC | 7,330 | $465.7K | 0.04% | −862−10.5% | Reduced |
| Cynosure Management, LLC | 7,354 | $467.3K | 0.05% | −3,018−29.1% | Reduced |
| Veracity Capital LLC | 7,414 | $471.1K | 0.14% | 00.0% | Unchanged |
| CIBC World Markets Corp | 7,729 | $491.1K | 0.00% | +7,729 | New |
| Havemeyer Place LP | 7,923 | $503.4K | 0.10% | +7,923 | New |
| Marex Group plc | 8,002 | $508.4K | 0.01% | +8,002 | New |
| Polymer Capital Management (US) LLC | 8,014 | $509.2K | 0.07% | +8,014 | New |
| Crossmark Global Holdings, Inc. | 8,162 | $518.6K | 0.01% | +347+4.4% | Added |
| PSP Research LLC | 8,313 | $528.2K | 0.46% | +8,313 | New |
| The PNC Financial Services Group, Inc. | 8,524 | $541.6K | 0.00% | +2,475+40.9% | Added |
| Qsemble Capital Management, LP | 8,560 | $543.9K | 0.04% | +2,495+41.1% | Added |
| Securian Asset Management, Inc | 8,910 | $566.1K | 0.02% | −51−0.6% | Reduced |
| Bellevue Group AG | 9,225 | $586.2K | 0.01% | +7,125+339.3% | Added |
| Bridgefront Capital, LLC | 9,484 | $602.6K | 0.15% | −925−8.9% | Reduced |
| Polen Capital Management LLC | 9,584 | $609.0K | 0.00% | +9,584 | New |
| Lighthouse Investment Partners, LLC | 10,000 | $635.4K | 0.02% | −37,000−78.7% | Reduced |
| Creek Drive Management Group LLC | 10,000 | $635.4K | 0.47% | +10,000 | New |
| Wealth Enhancement Advisory Services, LLC | 9,982 | $644.8K | 0.00% | +126+1.3% | Added |
| Skopos Labs, Inc. | 10,566 | $652.4K | 0.03% | +10,566 | New |
| Seven Fleet Capital Management LP | 10,335 | $656.7K | 0.44% | +10,335 | New |