Form 4 Tracker
Sung Lee

Director; EVP, Chief Financial Officer · 7 filings · Latest: Jun 29, 2026

CYTOKINETICS INC
Tango Therapeutics, Inc.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
CYTK
Sung LeeEVP, Chief Financial OfficerJun 24, 2026
Sale
$82.3038,730$3.2M63,221
CYTK
Sung LeeEVP, Chief Financial OfficerJun 24, 2026
Option Exercise
$47.1038,730$1.8M101,951
CYTK
Sung LeeEVP, Chief Financial OfficerJun 29, 2026
Sale
$85.003,134$266.4K63,221
CYTK
Sung LeeEVP, Chief Financial OfficerJun 29, 2026
Option Exercise
$45.833,134$143.6K66,355
CYTK
Sung LeeJun 29, 2026
Proposed Sale
$82.199,503$781.1K
CYTK
Sung LeeJun 26, 2026
Proposed Sale
$80.806,695$541.0K
CYTK
Sung LeeJun 24, 2026
Proposed Sale
$80.0138,730$3.1M
CYTK
SUNG LEEMay 5, 2026
Proposed Sale
$66.0523,906$1.6M
CYTK
Sung LeeEVP, Chief Financial OfficerMay 5, 2026
Sale
$76.8723,906$1.8M63,221
CYTK
Sung LeeEVP, Chief Financial OfficerMar 17, 2026
Sale
$62.154,935$306.7K87,127