Patrick Jeanmonod

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
11 Mar 24	CTKB Cytek Biosciences	Common Stock	Payment of exercise	Dispose F	No	No	7.22	1,912	13.80 k	97,465
11 Mar 24	CTKB Cytek Biosciences	Common Stock	Option exercise	Acquire M	No	No	0	4,908	0.00	99,377
11 Mar 24	CTKB Cytek Biosciences	RSU Common Stock	Option exercise	Dispose M	No	No	0	4,908	0.00	44,182
20 Feb 24	CTKB Cytek Biosciences	Common Stock	Payment of exercise	Dispose F	No	No	8.38	683	5.72 k	94,469
20 Feb 24	CTKB Cytek Biosciences	Common Stock	Option exercise	Acquire M	No	No	0	1,752	0.00	95,152
20 Feb 24	CTKB Cytek Biosciences	RSU Common Stock	Option exercise	Dispose M	No	No	0	1,752	0.00	13,442
26 Dec 23	CTKB Cytek Biosciences	Common Stock	Sell	Dispose S	No	Yes	9.5	3,000	28.50 k	93,400
24 Nov 23	CTKB Cytek Biosciences	Common Stock	Sell	Dispose S	No	Yes	6.94	3,000	20.82 k	96,400
18 Nov 23	CTKB Cytek Biosciences	Common Stock	Payment of exercise	Dispose F	No	No	5.98	1,434	8.58 k	99,400
18 Nov 23	CTKB Cytek Biosciences	Common Stock	Option exercise	Acquire M	No	No	0	3,681	0.00	100,834

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