Sanj K. Patel - 21 Mar 2022 Form 4 Insider Report for Kiniksa Pharmaceuticals, Ltd. (KNSA)

Role: CHAIRMAN & CEO, Director
Signature: /s/ Madelyn Zeylikman, Attorney-in-Fact
Issuer symbol: KNSA
Transactions as of: 21 Mar 2022
Net transactions value: -$59,797
Form type: 4
Filing time: 23 Mar 2022, 16:30:53 UTC
Previous filing: 18 Mar 2022
Next filing: 11 Apr 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	KNSA	Class A Common Share	Options Exercise		+18,555	+399%		23,202	21 Mar 2022	Direct	F1
transaction	KNSA	Class A Common Share	Tax liability	$59,797	-5,446	-23%	$10.98	17,756	21 Mar 2022	Direct
holding	KNSA	Class A Common Share						83,336	21 Mar 2022	Held by The Anglia 2013 Revocable Trust, u/d/t August 15, 2013
holding	KNSA	Class A Common Share						109,795	21 Mar 2022	Held by The Marina 2016 Irrevocable Trust, u/d/t June 23, 2016

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

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	KNSA	Restricted Share Unit	Options Exercise	$0	-18,555	-100%	$0.000000^*	0	21 Mar 2022	Class A Common Share	18,555		Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	Each Restricted Share Unit (RSU) represents a contingent right to receive one Class A Common Share of the Issuer.
F2	The performance criteria for these RSUs were met. The RSUs vested in a single installment on March 20, 2022; there was no expiration date for the RSUs.