$CYTK

$61.28 -$0.24 (0.39%) Close

$CYTK Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 139.0M shares outstanding

Who owns CYTK?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 60.0%

BlackRock, Inc. 14.5% · T. Rowe Price Investment Management, Inc. 13.5%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

479

+40 vs last qtr

Net shares bought

+12.6M

by institutions in Q2 2026

New / sold out

93 / 53

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

BlackRock, Inc. +3.5M
Avoro Capital Advisors LLC +1.7M

Biggest sellers in Q2 2026

FMR LLC −5.7M
Paradigm Biocapital Advisors LP SOLD OUT −1.5M

Who is planning to sell?

Notices of proposed sale, last 12 months

$48.9M

30 notices from 12 people

Shares covered

696.4K

0.50% of the company

Arranged in advance

85%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Andrew Callos Officer 10b5-1 $15.1M
Robert Blum Director 10b5-1 $8.85M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2014–FY2025

−99.7%

−46.89% a year

Each share's claim on the business

+29632.0%

grew without buying or selling a share

Spent on buybacks vs paid in stock

— vs $399M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years57% 3–5 years15% 1–3 years10% Under 1 year18%

Quarterly turnover

16.9%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting CYTK on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	20.1M	14.45%	+3.5M (+21.4%)	≤2021	0.0%
Shares held by quarter Peak holding20.1M (Q2'26) Change over 8 quarters+4.8M Share of the company14.450% BlackRock, Inc.'s full portfolio →
TR T. Rowe Price Investment Management, Inc.	18.7M	13.46%	+1.2M (+6.8%)	2022	1.1%
Shares held by quarter Peak holding27.1M (Q4'25) Change over 8 quarters+9.0M Share of the company13.460% T. Rowe Price Investment Management, Inc.'s full portfolio →

BlackRock, Inc.

20.1M

% of company

14.45%

Change vs last qtr

+3.5M (+21.4%)

Held since

≤2021

T. Rowe Price Investment Management, Inc.

18.7M

% of company

13.46%

Change vs last qtr

+1.2M (+6.8%)

Held since

2022

28 more super investors behind a free account

See every manager holding Cytokinetics, Incorporated, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting CYTK on Form N-PORT; together they hold 57.2% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
TR T. Rowe Price Capital Appreciation Fund T. Rowe Price Capital Appreciation Fund, Inc.	$536M	6.3M	4.52%	0.76%	June 30, 2026
IC iShares Core S&P Mid-Cap ETF iShares Trust	$396M	4.6M	3.34%	0.32%	June 30, 2026

T. Rowe Price Capital Appreciation Fund

T. Rowe Price Capital Appreciation Fund, Inc.

Position value

$536M

% of company

4.52%

% of the fund

0.76%

As of

June 30, 2026

iShares Core S&P Mid-Cap ETF

iShares Trust

Position value

$396M

% of company

3.34%

% of the fund

0.32%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Cytokinetics, Incorporated and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
BR Blum Robert I Insider	287.5K	0.21%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.210% Blum Robert I's insider activity →
MF Malik Fady Ibraham Insider	153.9K	0.11%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.110% Malik Fady Ibraham's insider activity →

Blum Robert I

Insider

287.5K

% of company

0.21%

Change vs last qtr

—

Held since

—

Malik Fady Ibraham

Insider

153.9K

% of company

0.11%

Change vs last qtr

—

Held since

—

14 more holders behind a free account

See every insider and 5%+ holder of Cytokinetics, Incorporated.

Comments