CYTK

CYTOKINETICS INC

Data as of 2026 Q2 (06-30) · 13F snapshot

Summary

CYTOKINETICS INC (CYTK) is held as common stock by 6 tracked hedge-fund managers, with a combined reported value of ~$225.56M; the largest are Steven Cohen, Ken Griffin, Baker Bros. Advisors. 4 tracked managers also disclosed PUT or CALL positions, reported separately below. This quarter: 3 new, 2 added, 1 trimmed. 4 public STOCK Act / OGE trade disclosures are on record. Data as of 2026 Q2, from public SEC 13F filings, delayed up to ~45 days.

Attention · MediumThis quarter · Heating up

Common-stock holders64 also report options

Congress trades4

Price$66.16vs quarter-end-22.34%

Sectors0

This quarter's moves

New3

Added2

Trimmed / sold1

Top holder

Steven Cohen

Common-stock positions

PUT and CALL disclosures are excluded from these holder counts and values.

Investor	Period	Value	Shares	% of portfolio	Action

PUT / CALL disclosures

Reported separately: 13F option values are not common-stock ownership and do not reveal the full strategy or economic exposure.

Ken GriffinCALL—

Value $77.06M— of portfolio904,6002026 Q2

Ken GriffinPUT—

Value $35.88M— of portfolio421,2002026 Q2

Paul Tudor JonesCALL—

Value $11.28M— of portfolio132,4002026 Q2

Izzy EnglanderCALL—

Value $8.53M— of portfolio100,1002026 Q2

Paul Tudor JonesPUT—

Value $1.90M— of portfolio22,3002026 Q2

Steven CohenPUT—

Value $51.1K— of portfolio6002026 Q2

Investor	Period	Value	Shares	% of portfolio	Action
Ken GriffinCALL	2026 Q2	$77.06M	904,600	—	—
Ken GriffinPUT	2026 Q2	$35.88M	421,200	—	—
Paul Tudor JonesCALL	2026 Q2	$11.28M	132,400	—	—
Izzy EnglanderCALL	2026 Q2	$8.53M	100,100	—	—
Paul Tudor JonesPUT	2026 Q2	$1.90M	22,300	—	—
Steven CohenPUT	2026 Q2	$51.1K	600	—	—

Public SEC 13F filings may appear up to 45 days after quarter-end; STOCK Act / OGE trade filings are generally due within 45 days but may be late. Partial data only — research, not investment advice.