Company · Ownership research

CYTOKINETICS INC CYTK

CIK 0001061983 · CUSIP 23282W605

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 23282W605 (CYTK), not CUSIP 23282W905 (CYTK), CUSIP 23282W955 (CYTK), CUSIP 23282Q605 (CYTK), and does not merge CUSIPs.

This page lists the top 20 of 345 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock Inc. CIK 1364742 · View history	$794.97M 14,672,779 shares	0.02%	+2.26M(+18.20%)Added	SEC filing ↗ Aug 13, 2024	▾
02	FMR LLC CIK 315066 · View history	$624.32M 11,523,128 shares	0.04%	+621.99K(+5.70%)Added	SEC filing ↗ Aug 13, 2024	▾
03	VANGUARD GROUP INC CIK 102909 · View history	$619.69M 11,437,696 shares	0.01%	+1.44M(+14.40%)Added	SEC filing ↗ Aug 13, 2024	▾
04	T. Rowe Price Investment Management, Inc. CIK 1897612 · View history	$440.95M 8,138,677 shares	0.28%	+3.02M(+58.90%)Added	SEC filing ↗ Aug 14, 2024	▾
05	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$406.87M 7,509,530 shares	0.07%	+3.53M(+88.60%)Added	SEC filing ↗ Aug 14, 2024	▾
06	STATE STREET CORP CIK 93751 · View history	$354.80M 6,548,536 shares	0.02%	+2.03M(+44.90%)Added	SEC filing ↗ Aug 14, 2024	▾
07	Darwin Global Management, Ltd. CIK 1839209 · View history	$246.07M 4,575,558 shares	28.63%	+4.58MNew	SEC filing ↗ Aug 14, 2024	▾
08	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$237.35M 4,380,769 shares	0.02%	-396.86K(-8.30%)Reduced	SEC filing ↗ Aug 14, 2024	▾
09	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$148.41M 2,738,646 shares	0.01%	+491.48K(+21.90%)Added	SEC filing ↗ Aug 9, 2024	▾
10	RTW INVESTMENTS, LP CIK 1493215 · View history	$147.43M 2,721,158 shares	2.28%	+196.08K(+7.80%)Added	SEC filing ↗ Aug 14, 2024	▾
11	Polar Capital Holdings Plc CIK 1837309 · View history	$132.99M 2,454,665 shares	0.78%	+849.09K(+52.90%)Added	SEC filing ↗ Aug 14, 2024	▾
12	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$127.78M 2,358,343 shares	0.02%	-572.61K(-19.50%)Reduced	SEC filing ↗ Aug 14, 2024	▾
13	BOXER CAPITAL, LLC CIK 1465837 · View history	$113.78M 2,100,000 shares	5.99%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2024	▾
14	Vestal Point Capital, LP CIK 1974915 · View history	$112.42M 2,075,000 shares	8.38%	-75.00K(-3.50%)Reduced	SEC filing ↗ Aug 14, 2024	▾
15	ARMISTICE CAPITAL, LLC CIK 1601086 · View history	$111.94M 2,065,991 shares	2.93%	+540.30K(+35.40%)Added	SEC filing ↗ Aug 14, 2024	▾
16	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$101.81M 1,879,161 shares	0.04%	+109.10K(+6.20%)Added	SEC filing ↗ Aug 14, 2024	▾
17	Pictet Asset Management Holding SA CIK 1993888 · View history	$95.80M 1,768,162 shares	0.11%	+14.52K(+0.80%)Added	SEC filing ↗ Aug 13, 2024	▾
18	Partner Fund Management, L.P. CIK 1442756 · View history	$95.20M 1,757,192 shares	5.19%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2024	▾
19	MARSHALL WACE, LLP CIK 1318757 · View history	$90.92M 1,678,159 shares	0.13%	-878.64K(-34.40%)Reduced	SEC filing ↗ Aug 14, 2024	▾
20	Melqart Asset Management (UK) Ltd CIK 1712901 · View history	$90.79M 1,675,785 shares	8.52%	+692.39K(+70.40%)Added	SEC filing ↗ Aug 14, 2024	▾

Showing 20 / 345 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

345

Cancelled or null records excluded

Disclosed shares

135,467,405

Not deduplicated across managers

Disclosed value

$7.34B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

CYTOKINETICS INC · Q2 2024

Explore all 345 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.