Ming Yan - Mar 10, 2025 Form 4 Insider Report for Cytek Biosciences, Inc. (CTKB)

Role
CHIEF TECHNOLOGY OFFICER, Director
Signature
/s/ Valerie Barnett, Attorney-in-Fact
Stock symbol
CTKB
Transactions as of
Mar 10, 2025
Transactions value $
-$22,219
Form type
4
Date filed
3/12/2025, 05:49 PM
Previous filing
Mar 6, 2025
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CTKB Common Stock Options Exercise +9.82K +0.16% 6.03M Mar 10, 2025 Direct F1
transaction CTKB Common Stock Tax liability -$12.7K -2.91K -0.05% $4.36 6.03M Mar 10, 2025 Direct F2
transaction CTKB Common Stock Options Exercise +7.37K +0.12% 6.03M Mar 10, 2025 Direct F1
transaction CTKB Common Stock Tax liability -$9.53K -2.19K -0.04% $4.36 6.03M Mar 10, 2025 Direct F2

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 -9.82K -14.28% $0.00 58.9K Mar 10, 2025 Common Stock 9.82K Direct F1, F3
transaction CTKB Restricted Stock Units Options Exercise $0 -7.37K -10% $0.00 66.3K Mar 10, 2025 Common Stock 7.37K Direct F1, F4
* 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 Represents the number of shares withheld by and surrendered to the Issuer on March 10, 2025, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.
F3 The shares subject to the RSU Award shall vest over four years with 2/48 of the total shares underlying the RSU Award vesting on May 18, 2023 and each May 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on August 18, 2023 and each August 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on November 18, 2023 and each November 18 thereafter; and 4/48 of the total shares underlying the RSU Award vesting on March 10, 2024 and each March 10 thereafter, until fully vested.
F4 The shares subject to the RSU Award shall vest over 4 years with 2/48 of the total shares underlying the RSU Award vesting on May 18, 2024 and each May 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on August 18, 2024 and each August 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on November 18, 2024 and each November 18 thereafter; and 4/48 of the total shares underlying the RSU Award vesting on March 10, 2025 and each March 10 thereafter.