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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1831915	Cytek Biosciences Inc.	CTKB	Laboratory Analytical Instruments (3826)	472547526

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1872873	Wenbin Jiang	C/O Cytek Biosciences, Inc. 47215 Lakeview Boulevard Fremont CA 94538	President And Ceo	Yes	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2023-03-07	20,000	$10.13	7,704,439	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (Right to Buy)	Acquisiton	2023-03-03	284,900	$0.00	284,900	$10.61
Common Stock	Restricted Stock Units	Acquisiton	2023-03-03	188,501	$0.00	188,501	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
284,900		2033-03-03	No	4	A	Direct
188,501			No	4	A	Direct

Footnotes

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 17, 2022.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.00 to $10.33, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.
1/48th of the shares subject to the option shall vest monthly over four years from the vesting commencement date of March 3, 2023. The option becomes fully vested on March 3, 2027.
Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.
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, 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 each March 10, 2024 and each March 10 thereafter, until fully vested.