William D. Mc Combe Cytek Biosciences, Inc. (CTKB) insider trading activity

William D. Mc Combe is Chief Financial Officer of Cytek Biosciences, Inc.. Currently has a direct ownership of 80,714 shares of CTKB, which is worth approximately $443,927. The most recent transaction as insider was on Nov 18, 2025, when has been sold 6,228 shares (Common Stock) at a price of $5.53 per share, resulting in proceeds of $34,440. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 80.7K

19.45% 3M change

n/a 12M change

Total Value Held $443,927

William D. McCombe Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Nov 18 2025	SELL Payment of exercise price or tax liability	$34,440 $5.53 p/Share	6,228 Reduced 7.16%	80,714 Common Stock
Nov 18 2025	BUY Exercise of conversion of derivative security	-	19,371 Added 18.58%	84,910 Common Stock
Aug 18 2025	SELL Payment of exercise price or tax liability	$30,636 $4.06 p/Share	7,546 Reduced 10.05%	67,571 Common Stock
Aug 18 2025	BUY Exercise of conversion of derivative security	-	19,371 Added 21.05%	72,655 Common Stock
Jun 02 2025	BUY Open market or private purchase	$97,300 $2.78 p/Share	35,000 Added 38.57%	55,746 Common Stock
May 19 2025	SELL Payment of exercise price or tax liability	$35,607 $2.69 p/Share	13,237 Reduced 38.95%	20,746 Common Stock
May 19 2025	BUY Exercise of conversion of derivative security	-	33,983 Added 58.47%	24,135 Common Stock

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