4processed

Form 4 — Insider Transaction

Cytek Biosciences, Inc.(CTKB)

Filing Date

May 18, 2026

Accepted

May 18, 2026

Accession No.

0001872873-26-000004

CIK

0001831915

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
Jiang WenbinPRESIDENT AND CEOOther7.9K5.43MCommon StockMay 18, 2026
Jiang WenbinPRESIDENT AND CEOOther1.9K$3.555.43MCommon StockMay 18, 2026
Jiang WenbinPRESIDENT AND CEOOther14.7K5.44MCommon StockMay 18, 2026
Jiang WenbinPRESIDENT AND CEOOther3.6K$3.555.44MCommon StockMay 18, 2026
Jiang WenbinPRESIDENT AND CEOOther19.3K5.46MCommon StockMay 18, 2026
Jiang WenbinPRESIDENT AND CEOOther5.0K$3.555.45MCommon StockMay 18, 2026
Jiang WenbinPRESIDENT AND CEOOther38.1K5.49MCommon StockMay 18, 2026
Jiang WenbinPRESIDENT AND CEOOther15.0K$3.555.48MCommon StockMay 18, 2026
Jiang WenbinPRESIDENT AND CEOOther7.9K$039.3KRestricted Stock UnitsMay 18, 2026
Jiang WenbinPRESIDENT AND CEOOther14.7K$0162.1KRestricted Stock UnitsMay 18, 2026
Jiang WenbinPRESIDENT AND CEOOther19.3K$0328.7KRestricted Stock UnitsMay 18, 2026
Jiang WenbinPRESIDENT AND CEOOther38.1K$0877.3KRestricted Stock UnitsMay 18, 2026