Derivative exercise or conversion — not an open-market buy.
Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell
View the official recordSEC Form 4 — Statement of Changes in Beneficial OwnershipAll the details
Dates, kept separate
Transaction date
Oct 27, 2025
Reporting period
Not applicable
Filed with the SEC
Oct 27, 2025
DirectorOption exercise
Context
Classification
option exercise
Code M — exercise or conversion of a derivative security
Planned / mechanical clue
Footnote references vesting of compensation awards
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001061983-25-000026
Filed / recorded
Oct 27, 2025, 9:59 PM UTC
Added to OQRO
Oct 6, 2026, 7:14 PM UTC
Parser
form4-xml-v2
Data quality
Verified: identifiers matched exactly
Issuer
CYTOKINETICS INC
Issuer CIK
1061983
Ticker
CYTK
Reporting person
Wendell Wierenga
Relationship
Director
Security
Non-Qualified Stock Option (Right to Buy)
Table
Derivative (Table II)
Transaction date
Oct 27, 2025
Transaction code
M
Shares / units
4,375
Price per share
$0.00
Acquired / disposed
Disposed (D)
Shares owned after
0
Ownership form
Direct
Amendment
No
Footnotes from the filing
This option shall vest and become exercisable as to 4,375 shares divided into equal monthly installments such that the option shall be 100% vested on January 4, 2017.