Michael R. Megna - Mar 21, 2022 Form 4 Insider Report for Kiniksa Pharmaceuticals, Ltd. (KNSA)

Role: CHIEF ACCOUNTING OFFICER
Signature: /s/ Madelyn Zeylikman, Attorney-in-Fact
Stock symbol: KNSA
Transactions as of: Mar 21, 2022
Transactions value $: -$12,298
Form type: 4
Date filed: 3/23/2022, 04:30 PM
Previous filing: Oct 6, 2021
Next filing: Apr 11, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	KNSA	Class A Common Share	Options Exercise		+3.23K	+82.21%		7.16K	Mar 21, 2022	Direct	F1
transaction	KNSA	Class A Common Share	Tax liability	-$12.3K	-1.12K	-15.64%	$10.98	6.04K	Mar 21, 2022	Direct

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	-3.23K	-100%	$0.00^*	0	Mar 21, 2022	Class A Common Share	3.23K		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.