Cytokinetics CYTK Institutional Ownership

NASDAQ CYTK

$62.86 -1.09 (-1.70%)

At close: Oct 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

481 Institutions

Increased 331 68.8%

Unchanged 51 10.6%

Reduced 99 20.6%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

160.34Mn

of 139.02Mn outstanding

▲+9.72% QoQ

Shares Outstanding

139.02Mn

Institutional Investors

481

filed 13F for Jun 2026

▲+44 vs prior quarter

Net Shares Added (QoQ)

+14.20Mn

accumulated since last quarter

Value of Holdings

$10.25Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Cytokinetics Inc (NASDAQ:CYTK) had 481 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

Total holdings of Cytokinetics shares rose 9.72% from Q1 2026, and the number of holders rose 57.19% from Q2 2025.
Among the 481 holders of Cytokinetics, 331 added to their positions, 99 reduced their stakes and 51 left their positions unchanged.
Altogether, institutional holders owned 160.34Mn CYTK shares at the end of Q2 2026, up 14.2Mn from the prior quarter and up 25.25Mn from a year earlier.
As of June 30, 2026, the biggest holder of Cytokinetics was BlackRock, Inc. with 20.09Mn shares.
Among holders that already owned Cytokinetics, the biggest buyers in Q2 2026 were BlackRock, Inc. (+3.55Mn shares), Avoro Capital Advisors LLC (+1.67Mn shares), Bank of America Corp (+1.51Mn shares), T. Rowe Price Investment Management, Inc. (+1.19Mn shares) and Point72 Asset Management, L.P. (+961.61K shares).
The biggest cuts to CYTK positions during Q2 2026 came from FMR LLC (-5.69Mn shares), Wellington Management Group LLP (-1.08Mn shares), UBS Group AG (-905.99K shares), Deep Track Capital, LP (-674.32K shares) and Citadel Advisors LLC (-458.91K shares).
Per Business Quant data, the 10 largest holders of Cytokinetics at the end of Q2 2026 were BlackRock, Inc. (20.09Mn shares), T. Rowe Price Investment Management, Inc. (18.72Mn shares), Wellington Management Group LLP (6.93Mn shares), Vanguard Portfolio Management LLC (6.71Mn shares), State Street Corp (6.49Mn shares), Vanguard Capital Management LLC (6.12Mn shares), FMR LLC (5.03Mn shares), Avoro Capital Advisors LLC (5Mn shares), Bank of America Corp (4.64Mn shares) and Geode Capital Management, LLC (3.71Mn shares).

Form 13F Holdings

482 Institutional Holders

Report period 30 Jun, 2026

Total shares held 160.34Mn

Of outstanding —

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	20,094,362	14.45%	▲3,546,351	+21.43%	$1.71Bn
2	T. Rowe Price Investment Management, Inc.	0001897612	18,718,498	13.46%	▲1,194,658	+6.82%	$1.59Mn
3	WELLINGTON MANAGEMENT GROUP LLP	0000902219	6,931,770	4.99%	▼1,077,719	-13.46%	$590.52Mn
4	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	6,711,799	4.83%	▲868,017	+14.85%	$571.78Mn
5	State Street Corp	0000093751	6,494,233	4.67%	▲749,040	+13.04%	$553.24Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	6,117,515	4.40%	▲628,881	+11.46%	$521.15Mn
7	FMR LLC	0000315066	5,031,782	3.62%	▼5,691,358	-53.08%	$428.66Mn
8	Avoro Capital Advisors LLC	0001633313	4,999,999	3.60%	▲1,666,666	+50.00%	$425.95Mn
9	Bank Of America Corp /De/	0000070858	4,635,709	3.33%	▲1,510,273	+48.32%	$394.92Mn
10	GEODE CAPITAL MANAGEMENT, LLC	0001214717	3,712,501	2.67%	▲497,086	+15.46%	$316.33Mn
11	RTW INVESTMENTS, LP	0001493215	2,862,003	2.06%	▲140,845	+5.18%	$243.81Mn
12	Polar Capital Holdings Plc	0001837309	2,253,649	1.62%	▲592,401	+35.66%	$191.99Mn
13	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	1,958,946	1.41%	▲374,625	+23.65%	$166.88K
14	Goldman Sachs Group Inc	0000886982	1,761,588	1.27%	▼444,170	-20.14%	$150.07Mn
15	Capital Research Global Investors	0001422848	1,686,625	1.21%	▲915,626	+118.76%	$143.68Mn
16	Northern Trust Corp	0000073124	1,647,345	1.18%	▲205,711	+14.27%	$140.34Mn
17	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	0001644956	1,603,442	1.15%	▲515,851	+47.43%	$136.60Mn
18	Integral Health Asset Management, LLC	0001773206	1,600,000	1.15%	0	0.00%	$136.30Mn
19	Jpmorgan Chase & Co	0000019617	1,588,895	1.14%	▲685,090	+75.80%	$139.15Mn
20	Point72 Asset Management, L.P.	0001603466	1,587,712	1.14%	▲961,610	+153.59%	$135.26Mn

Showing 1 to 20 of 482 holders