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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, Q1 2025

Institutional positions in Cytokinetics Inc as of Mar 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
356
+12 vs. Q4 2024
Shares held
136.3M
+5.32M (+4.1%) vs. Q4 2024
Total value
$5.48B
−$684.2M (−11.1%) vs. Q4 2024
New holders
56
140 more added
Sold out
44
109 more reduced

3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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.

Institutional holdersQ1 2025: 356 institutions
Q1 2021: 193 institutionsQ2 2021: 191 institutionsQ3 2021: 211 institutionsQ4 2021: 250 institutionsQ1 2022: 240 institutionsQ2 2022: 263 institutionsQ3 2022: 276 institutionsQ4 2022: 278 institutionsQ1 2023: 263 institutionsQ2 2023: 253 institutionsQ3 2023: 251 institutionsQ4 2023: 347 institutionsQ1 2024: 390 institutionsQ2 2024: 344 institutionsQ3 2024: 348 institutionsQ4 2024: 347 institutionsQ1 2025: 356 institutionsQ2 2025: 312 institutionsQ3 2025: 381 institutionsQ4 2025: 431 institutionsQ1 2026: 441 institutionsQ2 2026: 482 institutions
Value heldQ1 2025: $5.48B
Q1 2021: $1.74BQ2 2021: $1.50BQ3 2021: $3.22BQ4 2021: $4.16BQ1 2022: $3.52BQ2 2022: $4.16BQ3 2022: $5.08BQ4 2022: $4.88BQ1 2023: $3.83BQ2 2023: $3.55BQ3 2023: $3.22BQ4 2023: $9.54BQ1 2024: $8.26BQ2 2024: $7.34BQ3 2024: $7.20BQ4 2024: $6.18BQ1 2025: $5.48BQ2 2025: $4.55BQ3 2025: $7.75BQ4 2025: $8.87BQ1 2026: $9.63BQ2 2026: $13.7B
Institutions holding CYTK and their total value by quarter
QuarterHoldersValue
Q2 2026482$13.7B
Q1 2026441$9.63B
Q4 2025431$8.87B
Q3 2025381$7.75B
Q2 2025312$4.55B
Q1 2025356$5.48B
Q4 2024347$6.18B
Q3 2024348$7.20B
Q2 2024344$7.34B
Q1 2024390$8.26B
Q4 2023347$9.54B
Q3 2023251$3.22B
Q2 2023253$3.55B
Q1 2023263$3.83B
Q4 2022278$4.88B
Q3 2022276$5.08B
Q2 2022263$4.16B
Q1 2022240$3.52B
Q4 2021250$4.16B
Q3 2021211$3.22B
Q2 2021191$1.50B
Q1 2021193$1.74B

Institutions, Q1 2025

Shares, value and share of portfolio for each institution holding Cytokinetics Inc; share changes are against Q4 2024.

Institutions holding CYTK in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
New York State Teachers Retirement System114,100$4.59M0.01%+200+0.2%Added
Rhenman & Partners Asset Management AB104,250$4.19M0.48%−45,000−30.2%Reduced
Squarepoint Ops LLC103,878$4.17M0.01%+84,039+423.6%Added
California State Teachers Retirement System103,512$4.16M0.01%−1,206−1.2%Reduced
Exome Asset Management LLC103,483$4.16M3.73%+37,600+57.1%Added
Tang Capital Management LLC100,000$4.02M0.22%00.0%Unchanged
Decheng Capital LLC100,000$4.02M1.13%00.0%Unchanged
Mirador Capital Partners LP99,125$3.98M0.70%+33,489+51.0%Added
SEI Investments Co91,350$3.67M0.00%+1,790+2.0%Added
ExodusPoint Capital Management, LP85,863$3.45M0.05%+76,539+820.9%Added
Boothbay Fund Management, LLC82,200$3.30M0.12%−1,170−1.4%Reduced
Zimmer Partners, LP82,132$3.30M0.07%+44,132+116.1%Added
Redmile Group, LLC82,098$3.30M0.31%−10,500−11.3%Reduced
Two Sigma Advisers, LP80,400$3.23M0.01%−146,000−64.5%Reduced
EFG Asset Management (North America) Corp.80,359$3.23M0.54%−3,503−4.2%Reduced
Murchinson Ltd.78,795$3.17M0.55%00.0%Unchanged
State of Wisconsin Investment Board77,895$3.13M0.01%+4,269+5.8%Added
Mirae Asset Global ETFs Holdings Ltd.74,918$3.03M0.01%+3,260+4.5%Added
Alyeska Investment Group, L.P.75,000$3.01M0.01%−75,000−50.0%Reduced
Aquatic Capital Management LLC74,833$3.01M0.08%−100,720−57.4%Reduced
Macquarie Group Ltd74,406$2.99M0.00%−1,027−1.4%Reduced
Wells Fargo & Company73,966$2.97M0.00%+184+0.2%Added
Superstring Capital Management LP72,992$2.93M3.50%−56,397−43.6%Reduced
Allostery Investments LP70,000$2.81M4.06%+5,000+7.7%Added
Segall Bryant & Hamill, LLC69,543$2.79M0.04%−1,957−2.7%Reduced
Great West Life Assurance Co69,032$2.77M0.00%−7,428−9.7%Reduced
Intech Investment Management LLC67,261$2.70M0.03%+16,988+33.8%Added
Erste Asset Management GmbH60,450$2.61M0.03%00.0%Unchanged
DekaBank Deutsche Girozentrale57,500$2.45M0.00%00.0%Unchanged
Mutual of America Capital Management LLC60,739$2.44M0.03%−1,600−2.6%Reduced
Teachers Retirement System of the State of Kentucky60,357$2.43M0.02%+5,282+9.6%Added
Ironwood Investment Management LLC59,841$2.41M1.31%+756+1.3%Added
Caption Management, LLC58,739$2.36M0.11%+3,909+7.1%Added
Voya Investment Management LLC55,846$2.24M0.00%−24,617−30.6%Reduced
Capital Fund Management S.A.55,264$2.22M0.03%+14,818+36.6%Added
Royal Bank of Canada53,547$2.15M0.00%+9,422+21.4%Added
Harbor Capital Advisors, Inc.53,113$2.13M0.10%+7,983+17.7%Added
Amalgamated Bank52,565$2.11M0.02%−1,057−2.0%Reduced
Cinctive Capital Management LP52,321$2.10M0.17%+52,321New
Russell Investments Group, Ltd.49,438$1.99M0.00%−43,543−46.8%Reduced
Panagora Asset Management Inc47,354$1.90M0.01%00.0%Unchanged
State of Tennessee, Treasury Department47,316$1.90M0.01%+2,450+5.5%Added
Natixis Advisors, L.P.45,465$1.83M0.00%+11,806+35.1%Added
HighVista Strategies LLC44,749$1.80M0.69%+30,488+213.8%Added
Two Sigma Investments, LP44,156$1.77M0.00%−47,015−51.6%Reduced
Yousif Capital Management, LLC41,660$1.67M0.02%−1,126−2.6%Reduced
State of New Jersey Common Pension Fund D41,032$1.65M0.01%−4,846−10.6%Reduced
CM Management, LLC40,000$1.61M1.62%+40,000New
Parallax Volatility Advisers, L.P.38,562$1.55M0.05%−4,221−9.9%Reduced
Guggenheim Capital LLC36,703$1.48M0.01%+715+2.0%Added
Lazard Asset Management LLC36,168$1.45M0.00%+36,168New
New York State Common Retirement Fund35,567$1.43M0.00%00.0%Unchanged
Prudential Financial Inc35,226$1.42M0.00%+9,890+39.0%Added
ProShare Advisors LLC35,115$1.41M0.00%−8,184−18.9%Reduced
Moore Capital Management, LP35,000$1.41M0.05%00.0%Unchanged
Ameritas Investment Partners, Inc.34,892$1.40M0.05%−703−2.0%Reduced
Federated Hermes, Inc.34,045$1.37M0.00%−3,056−8.2%Reduced
Verition Fund Management LLC34,037$1.37M0.01%+13,755+67.8%Added
Profund Advisors LLC34,035$1.37M0.06%−1,678−4.7%Reduced
Great Lakes Advisors, LLC33,826$1.36M0.01%+237+0.7%Added
Creative Planning33,577$1.35M0.00%+12,273+57.6%Added
Louisiana State Employees Retirement System33,100$1.33M0.03%+300+0.9%Added
NEOS Investment Management LLC32,588$1.31M0.02%−14,795−31.2%Reduced
Tema ETFs LLC32,588$1.31M0.39%−14,795−31.2%Reduced
Handelsbanken Fonder AB32,300$1.30M0.01%00.0%Unchanged
Arizona State Retirement System32,142$1.29M0.01%−224−0.7%Reduced
RFG Advisory, LLC32,005$1.29M0.03%+32,005New
Ensign Peak Advisors, Inc31,796$1.28M0.00%−265,039−89.3%Reduced
Dimensional Fund Advisors LP31,034$1.25M0.00%−63,090−67.0%Reduced
Teacher Retirement System of Texas30,173$1.21M0.01%−2,933−8.9%Reduced
Pathstone Holdings, LLC30,119$1.21M0.01%+3,825+14.5%Added
Zurcher Kantonalbank (Zurich Cantonalbank)29,261$1.18M0.00%+1,003+3.5%Added
Prelude Capital Management, LLC28,554$1.15M0.12%+8,348+41.3%Added
Nomura Holdings Inc28,532$1.15M0.01%−37,249−56.6%Reduced
State Board of Administration of Florida Retirement System28,486$1.14M0.00%00.0%Unchanged
Commonwealth of Pennsylvania Public School Empls Retrmt Sys28,210$1.13M0.01%+2,146+8.2%Added
State of Michigan Retirement System28,200$1.13M0.01%+300+1.1%Added
Congress Wealth Management LLC28,000$1.13M0.01%+28,000New
J. Safra Sarasin Holding AG27,791$1.12M0.02%+14,764+113.3%Added
Thrivent Financial for Lutherans27,670$1.11M0.00%−98−0.4%Reduced
Northwestern Mutual Investment Management Company, LLC26,239$1.05M0.02%+110.0%Added
CIBC World Markets Corp25,361$1.02M0.01%+14,665+137.1%Added
Universal- Beteiligungs- und Servicegesellschaft mbH24,935$1.00M0.00%+24,935New
Police & Firemen's Retirement System of New Jersey24,911$1.00M0.01%+565+2.3%Added
Envestnet Asset Management Inc24,321$977.5K0.00%−2,134−8.1%Reduced
Winton Group Ltd24,255$974.8K0.06%+5,250+27.6%Added
Oregon Public Employees Retirement Fund24,015$965.2K0.02%00.0%Unchanged
China Universal Asset Management Co., Ltd.23,751$954.6K0.09%−1,272−5.1%Reduced
KLP Kapitalforvaltning AS23,600$948.5K0.00%+600+2.6%Added
New Mexico Educational Retirement Board23,500$944.0K0.03%00.0%Unchanged
Fox Run Management, L.L.C.23,181$931.6K0.14%+23,181New
Harvey Capital Management Inc22,580$907.5K0.24%+475+2.1%Added
Victory Capital Management Inc21,576$867.1K0.00%−140−0.6%Reduced
Sanders Morris Harris LLC21,505$806.4K0.12%00.0%Unchanged
LMR Partners LLP20,000$803.8K0.02%−83,346−80.6%Reduced
Diadema Partners LP20,000$803.8K0.64%+20,000New
AQR Capital Management LLC19,994$803.6K0.00%−13,259−39.9%Reduced
Susquehanna Fundamental Investments, LLC19,387$779.2K0.01%−112,412−85.3%Reduced
Stifel Financial Corp18,714$752.1K0.00%−6,329−25.3%Reduced
Edgestream Partners, L.P.18,216$732.1K0.02%+18,216New