DON M. HARDISON - 05 Jun 2025 Form 4 Insider Report for Cytek Biosciences, Inc. (CTKB)

Role
Director
Signature
/s/ Valerie Barnett, Attorney-in-Fact
Issuer symbol
CTKB
Transactions as of
05 Jun 2025
Transactions value $
$0
Form type
4
Filing time
09 Jun 2025, 17:08:59 UTC
Previous filing
07 Jun 2024
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
HARDISON DON M Director C/O CYTEK BIOSCIENCES, INC., 47215 LAKEVIEW BOULEVARD, FREMONT /s/ Valerie Barnett, Attorney-in-Fact 09 Jun 2025 0001209588

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CTKB Common Stock Options Exercise +15.7K 15.7K 05 Jun 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction CTKB Restricted Stock Units Options Exercise $0 -15.7K -100% $0.00 0 05 Jun 2025 Common Stock 15.7K Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.
F2 100% of the shares subject to the RSU Award vested on June 5, 2025.