Jiang Wenbin bought CTKB

August 18, 2025 · Form 4 insider transaction

Jiang Wenbin bought 29,002 shares of CTKB, a transaction worth N/A. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 2 days after the transaction.

Direction

Acquired (buy-side)

29,002

Price

N/A

Total value

N/A

InsiderJiang Wenbin

RoleOfficer, Director

CompanyCTKB

SecurityCommon Stock

Transaction codeM — Option exercise

Transaction dateAugust 18, 2025

Filing dateAugust 20, 2025

Shares owned after5,321,479

OwnershipDirect

10b5-1 planNo

AmendedNo

Footnotes

Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

View the original Form 4 on SEC EDGAR