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CIK 0001831915 · Accelerated filer

Cytek Biosciences, Inc.

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Ticker
CTKB
Exchange
Nasdaq
Industry
Laboratory Analytical Instruments
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
472547526
Phone
(877) 922-9835
Business address
47215 LAKEVIEW BOULEVARD, FREMONT, CA, 94538
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2025-08-18 Busque Philippe SVP, GLOBAL SALES AND SERVICES Shares withheld for taxes −1,412 $4.06 $6K 23,416
2025-08-18 Busque Philippe SVP, GLOBAL SALES AND SERVICES Option exercise · Restricted Stock Units −1,536 10,250
2025-08-18 Busque Philippe SVP, GLOBAL SALES AND SERVICES Option exercise · Restricted Stock Units −2,210 22,838
2025-08-18 Busque Philippe SVP, GLOBAL SALES AND SERVICES Option exercise · Restricted Stock Units −3,625 51,963
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Option exercise +2,016 85,689
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Shares withheld for taxes −786 $4.06 $3K 84,903
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Option exercise +3,681 88,584
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Shares withheld for taxes −1,434 $4.06 $6K 87,150
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Option exercise +7,735 94,885
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Shares withheld for taxes −3,000 $4.06 $12K 91,885
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Option exercise +10,875 102,760
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Shares withheld for taxes −3,609 $4.06 $15K 99,151
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Option exercise · Restricted Stock Units −2,016 3,362
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Option exercise · Restricted Stock Units −3,681 23,323
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Option exercise · Restricted Stock Units −7,735 79,932
2025-08-18 Barnett Valerie CHIEF LEGAL OFFICER Option exercise · Restricted Stock Units −10,875 155,888
2025-08-18 Jiang Wenbin PRESIDENT AND CEO Option exercise +6,758 5,268,493
2025-08-18 Jiang Wenbin PRESIDENT AND CEO Shares withheld for taxes −1,646 $4.06 $7K 5,266,847
2025-08-18 Jiang Wenbin PRESIDENT AND CEO Option exercise +11,781 5,278,628
2025-08-18 Jiang Wenbin PRESIDENT AND CEO Shares withheld for taxes −2,869 $4.06 $12K 5,275,759

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