Feng Deng - Jul 22, 2021 Form 4 Insider Report for Cytek Biosciences, Inc. (CTKB)

Role: Director
Signature: /s/ Valerie Barnett, Attorney-in-Fact for Feng Deng
Stock symbol: CTKB
Transactions as of: Jul 22, 2021
Transactions value $: $0
Form type: 4
Date filed: 7/27/2021, 08:57 PM

Transactions Table

Type	Sym	Class	Transaction	Shares	Shares After	Date	Ownership	Footnotes
transaction	CTKB	Common Stock	Conversion of derivative security	+148K	148K	Jul 22, 2021	See footnote	F1, F2
transaction	CTKB	Common Stock	Conversion of derivative security	+4.17M	4.17M	Jul 22, 2021	See footnote	F1, F2
transaction	CTKB	Common Stock	Conversion of derivative security	+444K	444K	Jul 22, 2021	See footnote	F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Date	Underlying Class	Amount	Ownership	Footnotes
transaction	CTKB	Series A Preferred Stock	Conversion of derivative security	$0	-148K	-100%	$0.00^*	Jul 22, 2021	Common Stock	148K	See footnote	F1, F2
transaction	CTKB	Series C Preferred Stock	Conversion of derivative security	$0	-4.17M	-100%	$0.00^*	Jul 22, 2021	Common Stock	4.17M	See footnote	F1, F2
transaction	CTKB	Series D Preferred Stock	Conversion of derivative security	$0	-444K	-100%	$0.00^*	Jul 22, 2021	Common Stock	444K	See footnote	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each share of Preferred Stock automatically converted on a one-for-one basis into Common Stock upon the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration. The shares of Preferred Stock have no expiration date.
F2	Shares held directly by Northern Light Venture Capital V, Ltd. ("NLVC V"). Fund V serves as the nominee for each of Northern Light Venture Fund V, L.P., Northern Light Strategic Fund V, L.P. and Northern Light Partners Fund V, L.P (together, the "NLVC V Funds"). Northern Light Partners V, L.P., a Cayman Islands exempted limited liability partnership, is the general partner of the NLVC V Funds. NLVC V is the general partner of Northern Light Partners V, L.P. Feng Deng is the controlling shareholder of NLVC V and may be deemed to have voting and dispositive power with respect to the shares held by NLVC V.

Content

Each share of Preferred Stock automatically converted on a one-for-one basis into Common Stock upon the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration. The shares of Preferred Stock have no expiration date.

Shares held directly by Northern Light Venture Capital V, Ltd. ("NLVC V"). Fund V serves as the nominee for each of Northern Light Venture Fund V, L.P., Northern Light Strategic Fund V, L.P. and Northern Light Partners Fund V, L.P (together, the "NLVC V Funds"). Northern Light Partners V, L.P., a Cayman Islands exempted limited liability partnership, is the general partner of the NLVC V Funds. NLVC V is the general partner of Northern Light Partners V, L.P. Feng Deng is the controlling shareholder of NLVC V and may be deemed to have voting and dispositive power with respect to the shares held by NLVC V.