Cytokinetics Ownership | Who Owns Cytokinetics?

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Cytokinetics Ownership Summary

Cytokinetics is owned by 13.64% institutional investors, 0.77% insiders, and 85.60% retail investors. Blackrock is the largest institutional shareholder, holding 14.40% of CYTK shares. Vanguard Health Care Inv is the top mutual fund, with 3.41% of its assets in Cytokinetics shares.

CYTK Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Cytokinetics	13.64%	0.77%	85.60%
Sector	Healthcare Stocks	279.42%	10.64%	-190.05%
Industry	Biotech Stocks	64.05%	10.69%	25.27%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	14.67M	14.40%	$794.97M
Blackrock funding, inc. /de	15.47M	13.14%	$727.68M
Vanguard group	11.92M	10.13%	$560.52M
Fmr	10.79M	9.17%	$507.78M
T. rowe price investment management	10.75M	9.14%	$505.78M
Wellington management group llp	7.89M	6.70%	$371.08M
State street	6.17M	5.24%	$290.11M
Deep track capital, lp	3.07M	2.59%	$123.54M
Geode capital management	2.84M	2.41%	$133.69M
Rtw investments, lp	2.72M	2.30%	$109.36M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Rp management	980.39K	22.73%	$51.76M
Sarissa capital management lp	833.80K	12.15%	$39.22M
Great point partners	370.00K	7.88%	$14.87M
Vestal point capital, lp	2.59M	7.43%	$104.11M
Boxer capital	2.10M	5.99%	$113.78M
Superstring capital management lp	129.39K	5.27%	$6.09M
Melqart asset management (uk)	999.45K	5.24%	$40.17M
Dafna capital management	398.10K	4.54%	$16.00M
Allostery investments lp	70.00K	4.06%	$2.81M
Integral health asset management	1.00M	4.01%	$47.04M

Top Buyers

Holder	Shares	% Assets	Change
Blackrock	14.67M	0.02%	2.26M
Capital investors	1.10M	0.01%	1.10M
T. rowe price investment management	10.75M	0.31%	1.06M
Norges bank	989.72K	0.01%	989.72K
Ubs group	1.20M	0.01%	888.44K

Top Sellers

Holder	Shares	% Assets	Change
Darwin global management	-	-	-4.58M
Pfm health sciences, lp	-	-	-1.76M
Westfield capital management co lp	-	-	-1.31M
Fmr	10.79M	0.03%	-1.30M
Hood river capital management	-	-	-1.26M

New Positions

Holder	Shares	% Assets	Change	Value
Capital investors	1.10M	0.01%	1.10M	$51.56M
Norges bank	989.72K	0.01%	989.72K	$46.56M
Paradigm biocapital advisors lp	858.66K	1.58%	858.66K	$34.51M
Groupama asset managment	350.00K	0.01%	350.00K	$421.29K
Cutter capital management, lp	175.00K	3.06%	175.00K	$7.03M

Sold Out

Holder	Change
True wealth design	-1.00
New england capital financial advisors	-1.00
Financial gravity asset management	-2.00
Financial management professionals	-5.00
American capital advisory	-5.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2025	25	-93.40%	16,158,180	-87.73%	13	0.11%	15	-91.28%	5	-96.09%
Dec 31, 2024	374	-5.32%	131,318,059	-2.91%	111	0.84%	166	-12.17%	128	29.29%
Sep 30, 2024	390	0.52%	135,010,879	-0.29%	114	0.65%	187	-6.50%	99	-2.94%
Jun 30, 2024	388	-14.35%	135,400,422	16.07%	132	1.01%	200	-11.11%	102	-22.14%
Mar 31, 2024	453	6.34%	116,652,886	2.18%	114	0.82%	225	10.29%	131	11.02%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Health Care Inv	4.07M	3.41%	-
iShares Core S&P Mid-Cap ETF	3.89M	3.25%	-6.99K
Vanguard Total Stock Mkt Idx Inv	3.80M	3.18%	16.51K
Vanguard US Total Market Shares ETF	3.75M	3.15%	128.42K
Vanguard Small Cap Index	2.92M	2.44%	-58.37K
iShares Russell 2000 ETF	2.75M	2.30%	-52.19K
T. Rowe Price Capital Appreciation	2.44M	2.04%	41.02K
T. Rowe Price Mid-Cap Growth	2.25M	1.88%	268.00K
T. Rowe Price US Mid-Cap Growth Equity	2.25M	1.88%	267.30K
T. Rowe Price Small-Cap Value	2.10M	1.76%	288.91K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 05, 2025	Malik Fady Ibraham	EVP Research & Development	Sell	$72.68K
Jul 29, 2025	Blum Robert I	President & CEO	Sell	$182.25K
Jul 22, 2025	Malik Fady Ibraham	EVP Research & Development	Sell	$74.94K
Jul 14, 2025	Blum Robert I	President & CEO	Sell	$190.75K
Jul 08, 2025	Malik Fady Ibraham	EVP Research & Development	Sell	$67.52K

Insider Transactions Trends

Date	Buy	Sell
2025 Q3	-	6
2025 Q2	-	19
2025 Q1	-	22
2024 Q4	-	20
2024 Q3	-	25

CYTK Ownership FAQ

Who Owns Cytokinetics?

Cytokinetics shareholders are primarily institutional investors at 13.64%, followed by 0.77% insiders and 85.59% retail investors. The average institutional ownership in Cytokinetics's industry, Biotech Stocks , is 64.05%, which Cytokinetics falls below.

Who owns the most shares of Cytokinetics?

Cytokinetics’s largest shareholders are Blackrock (14.67M shares, 14.40%), Blackrock funding, inc. /de (15.47M shares, 13.14%), and Vanguard group (11.92M shares, 10.13%). Together, they hold 37.67% of Cytokinetics’s total shares outstanding.

Does Blackrock own Cytokinetics?

Yes, BlackRock owns 14.40% of Cytokinetics, totaling 14.67M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 794.97M$. In the last quarter, BlackRock increased its holdings by 2.26M shares, a 18.19% change.

Who is Cytokinetics’s biggest shareholder by percentage of total assets invested?

Rp management is Cytokinetics’s biggest shareholder by percentage of total assets invested, with 22.73% of its assets in 980.39K Cytokinetics shares, valued at 51.76M$.

Who is the top mutual fund holder of Cytokinetics shares?

Vanguard Health Care Inv is the top mutual fund holder of Cytokinetics shares, with 3.41% of its total shares outstanding invested in 4.07M Cytokinetics shares.

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