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CYTK

Cytokinetics Inc
$86.49 +1.23 (+1.44%) At close · Jul 2
Market Cap
$10.76B
Shares
124,432,565

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 451
Total Value: $9,938,351,137
Total Shares: 150,786,542
Showing 1–100 of 493 holdings by value · page 1 of 5

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 450 13F filers
Top Holder
11.6%
Jun 2023 → Mar 2026 · range 9.5% – 14.4%
of institutional value
Top 5
38.8%
Jun 2023 → Mar 2026 · range 33.2% – 47.4%
of institutional value
Top 10
50.7%
Jun 2023 → Mar 2026 · range 45.8% – 58.8%
of institutional value
HHI
414
Jun 2023 → Mar 2026 · range 325 – 562
Broadly held
Showing 100 of 493
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega T. Rowe Price Investment Management, Inc. $1,154,996,294 11.62% 17,523,840
Mega BlackRock, Inc. $1,090,679,395 10.97% 16,548,011
Mega FMR LLC $706,762,155 7.11% 10,723,140
Mega WELLINGTON MANAGEMENT GROUP LLP $527,905,416 5.31% 8,009,489
Mega STATE STREET CORP $378,665,670 3.81% 5,745,193
Mega VANGUARD CAPITAL MANAGEMENT LLC $361,755,866 3.64% 5,488,634
Large Avoro Capital Advisors LLC $219,699,978 2.21% 3,333,333
Mega GEODE CAPITAL MANAGEMENT, LLC $211,928,002 2.13% 3,215,415
Mega BANK OF AMERICA CORP /DE/ Bank $205,997,485 2.07% 3,125,436
Large RTW INVESTMENTS, LP $179,351,523 1.80% 2,721,158
Mega GOLDMAN SACHS GROUP INC $145,381,506 1.46% 2,205,758
Mega UBS Group AG $136,913,326 1.38% 2,077,277
Mid ARMISTICE CAPITAL, LLC $112,047,000 1.13% 1,700,000
Large Polar Capital Holdings Plc $109,492,855 1.10% 1,661,248
Mid Integral Health Asset Management, LLC $105,456,000 1.06% 1,600,000
Mega PRICE T ROWE ASSOCIATES INC /MD/ $104,422,596 1.05% 1,584,321
Mega MORGAN STANLEY $99,199,486 1.00% 1,505,075
Mid Paradigm Biocapital Advisors LP $97,603,284 0.98% 1,480,857
Mega NORTHERN TRUST CORP Bank $95,018,093 0.96% 1,441,634
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $92,079,235 0.93% 1,397,045
Mid Deep Track Capital, LP $90,581,431 0.91% 1,374,320
Mega Capital International Investors $88,240,505 0.89% 1,338,803
Large Caption Management, LLC $81,069,300 0.82% 1,230,000
Mid Frazier Life Sciences Management, L.P. $76,447,624 0.77% 1,159,879
Mega CITADEL ADVISORS LLC $72,491,640 0.73% 1,099,858
Mega PRINCIPAL FINANCIAL GROUP INC $72,071,595 0.73% 1,093,485
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $71,683,122 0.72% 1,087,591
Mega Bank of New York Mellon Corp Bank $66,317,644 0.67% 1,006,185
Large Woodline Partners LP $65,938,209 0.66% 1,000,428
Mid Integral Health Asset Management, LLC $65,910,000 0.66% 1,000,000
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $65,567,268 0.66% 994,800
Large Balyasny Asset Management L.P. $65,418,640 0.66% 992,545
Small Royalty Pharma Sub-Manager, LLC $64,617,636 0.65% 980,392
Mega JPMORGAN CHASE & CO $59,569,783 0.60% 903,805
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $59,249,860 0.60% 898,951
Mid Logos Global Management LP $57,671,250 0.58% 875,000
Mega BNP PARIBAS ARBITRAGE, SA $56,311,790 0.57% 854,374
Mid Melqart Asset Management (UK) Ltd $55,624,678 0.56% 843,949
Mega VANGUARD FIDUCIARY TRUST CO Bank $52,703,086 0.53% 799,622
Large Qube Research & Technologies Ltd $51,373,285 0.52% 779,446
Mega Capital Research Global Investors $50,816,544 0.51% 770,999
Mega Fisher Asset Management, LLC $50,636,280 0.51% 768,264
Mid ARMISTICE CAPITAL, LLC $50,390,699 0.51% 764,538
Large Pictet Asset Management Holding SA $49,495,312 0.50% 750,953
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $47,082,412 0.47% 714,344
Mega D. E. Shaw & Co., Inc. $46,574,049 0.47% 706,631
Mid Affinity Asset Advisors, LLC $46,168,834 0.46% 700,483
Large FEDERATED HERMES, INC. $46,100,946 0.46% 699,453
Mid Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. $43,521,032 0.44% 660,310
Large MARSHALL WACE, LLP $43,277,032 0.44% 656,608
Mid ADAR1 Capital Management, LLC $41,691,765 0.42% 632,556
Large Point72 Asset Management, L.P. $41,266,382 0.42% 626,102
Large BROWN ADVISORY INC $40,511,910 0.41% 614,655
Mid Siren, L.L.C. $40,465,576 0.41% 613,952
Mid Ikarian Capital, LLC $36,283,455 0.37% 550,500
Small Foresite Capital Management IV, LLC $33,172,173 0.33% 503,295
Mid MPM BIOIMPACT LLC $32,955,000 0.33% 500,000
Large GW&K Investment Management, LLC $32,600,337 0.33% 494,619
Mega Invesco Ltd. $31,965,029 0.32% 484,980
Large Aberdeen Group plc $31,852,589 0.32% 483,274
Mid EVENTIDE ASSET MANAGEMENT, LLC $31,577,349 0.32% 479,098
Mega ALLIANCEBERNSTEIN L.P. $30,258,424 0.30% 459,087
Mega AMERICAN CENTURY COMPANIES INC $29,261,205 0.29% 443,957
Mega TD Asset Management Inc $27,737,959 0.28% 420,846
Mega FRANKLIN RESOURCES INC $27,008,861 0.27% 409,784
Mid Ikarian Capital, LLC $26,917,644 0.27% 408,400
Large Caption Management, LLC $25,151,256 0.25% 381,600
Mega RHUMBLINE ADVISERS $24,358,688 0.25% 369,575
Mid GROUP ONE TRADING LLC $23,991,042 0.24% 363,997
Mega Nuveen, LLC $23,187,730 0.23% 351,809
Small GSK plc $22,438,004 0.23% 340,434
Large Candriam S.C.A. $22,093,559 0.22% 335,208
Mid GILDER GAGNON HOWE & CO LLC $21,815,484 0.22% 330,989
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $21,684,390 0.22% 329,000
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $20,540,785 0.21% 311,649
Mega CITADEL ADVISORS LLC $20,353,008 0.20% 308,800
Mega AMERIPRISE FINANCIAL INC $19,957,678 0.20% 302,802
Mid E. Ohman J:or Asset Management AB $19,823,223 0.20% 300,762
Mid Vestal Point Capital, LP $19,773,000 0.20% 300,000
Small Trails Edge Capital Partners, LP $19,773,000 0.20% 300,000
Mega TWO SIGMA INVESTMENTS, LP $18,784,877 0.19% 285,008
Small First Turn Management, LLC $18,698,667 0.19% 283,700
Mid Ikarian Capital, LLC $18,690,230 0.19% 283,572
Mega JANUS HENDERSON GROUP PLC $18,594,594 0.19% 282,121
Mid Susquehanna Portfolio Strategies, LLC $18,351,255 0.18% 278,429
Mega JANE STREET GROUP, LLC $18,257,070 0.18% 277,000
Large VOYA INVESTMENT MANAGEMENT LLC $17,100,941 0.17% 259,459
Small SPHERA FUNDS MANAGEMENT LTD. $17,090,463 0.17% 259,300
Large NOMURA HOLDINGS INC $17,070,690 0.17% 259,000
Mega GOLDMAN SACHS GROUP INC $16,477,500 0.17% 250,000
Mega CITIGROUP INC $16,427,605 0.17% 249,243
Large Handelsbanken Fonder AB $16,299,543 0.16% 247,300
Large Caption Management, LLC $16,147,950 0.16% 245,000
Mega Capital World Investors $15,952,922 0.16% 242,041
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $15,860,052 0.16% 240,632
Mega Swiss National Bank Bank $15,146,118 0.15% 229,800
Small Sarissa Capital Management LP $15,068,541 0.15% 228,623
Mega HSBC HOLDINGS PLC $14,631,953 0.15% 221,999
Small DAFNA Capital Management LLC $14,335,227 0.14% 217,497
Large Freestone Grove Partners LP $14,287,244 0.14% 216,769
Key facts CIK 1061983 CUSIP 23282W605 13F (30d) 6 filings 5 filers Visit website Investor relations

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