Paul Christopher Williams

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
19 Aug 24	CTKB Cytek Biosciences	Common Stock	Payment of exercise	Dispose F	No	No	5.53	3,444	19.05 k	16,473
19 Aug 24	CTKB Cytek Biosciences	Common Stock	Option exercise	Acquire M	No	No	0	8,840	0.00	19,917
19 Aug 24	CTKB Cytek Biosciences	Common Stock	Payment of exercise	Dispose F	No	No	5.53	359	1.99 k	11,077
19 Aug 24	CTKB Cytek Biosciences	Common Stock	Option exercise	Acquire M	No	No	0	920	0.00	11,436
19 Aug 24	CTKB Cytek Biosciences	Common Stock	Payment of exercise	Dispose F	No	No	5.53	392	2.17 k	10,516
19 Aug 24	CTKB Cytek Biosciences	Common Stock	Option exercise	Acquire M	No	No	0	1,006	0.00	10,908
19 Aug 24	CTKB Cytek Biosciences	RSU Common Stock	Option exercise	Dispose M	No	No	0	8,840	0.00	126,709
19 Aug 24	CTKB Cytek Biosciences	RSU Common Stock	Option exercise	Dispose M	No	No	0	920	0.00	9,513
19 Aug 24	CTKB Cytek Biosciences	RSU Common Stock	Option exercise	Dispose M	No	No	0	1,006	0.00	9,063
20 May 24	CTKB Cytek Biosciences	Common Stock	Payment of exercise	Dispose F	No	No	5.96	2,296	13.68 k	9,902

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.