Ming Yan - 07 Mar 2022 Form 4 Insider Report for Cytek Biosciences, Inc. (CTKB)

Role: Chief Technology Officer, Director
Signature: /s/ Valerie Barnett, Attorney-in-Fact for Ming Yan
Issuer symbol: CTKB
Transactions as of: 07 Mar 2022
Net transactions value: +$25,325
Form type: 4
Filing time: 08 Mar 2022, 16:57:15 UTC
Previous filing: 02 Mar 2022
Next filing: 23 Mar 2022
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	$15,614	+62,456	+0.77%	$0.2500^*	8,152,248	07 Mar 2022	Direct
transaction	CTKB	Common Stock	Options Exercise	$9,711	+10,555	+0.13%	$0.9200^*	8,162,803	07 Mar 2022	Direct

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	Stock Option (Right to Buy)	Options Exercise	$0	-62,456	-100%	$0.000000^*	0	07 Mar 2022	Common Stock	62,456	$0.2500	Direct
transaction	CTKB	Stock Option (Right to Buy)	Options Exercise	$0	-10,555	-40%	$0.000000	16,111	07 Mar 2022	Common Stock	10,555	$0.9200	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The shares subject to the option vest as follows: 25% of the shares subject to the option vests on July 24, 2021; and 1/48th of the shares subject to the option vest monthly thereafter over the following three years.