Signature
/s/ Madelyn Zeylikman, Attorney-in-Fact
Stock symbol
KNSA
Transactions as of
May 1, 2025
Transactions value $
$0
Form type
4
Date filed
5/5/2025, 04:52 PM
Previous filing
Apr 9, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Megna Michael R CHIEF ACCOUNTING OFFICER 23 OLD BOND STREET, THIRD FLOOR, LONDON, UNITED KINGDOM /s/ Madelyn Zeylikman, Attorney-in-Fact 2025-05-05 0001464583

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 Performance Share Unit Award $0 +3.27K $0.00 3.27K May 1, 2025 Class A Ordinary Share 3.27K Direct F1, F2, F3
transaction KNSA Performance Share Unit Award $0 +3.43K $0.00 3.43K May 1, 2025 Class A Ordinary Share 3.43K Direct F1, F2, F4
transaction KNSA Performance Share Option Award $0 +5.29K $0.00 5.29K May 1, 2025 Class A Ordinary Share 5.29K $27.74 Direct F2, F5
transaction KNSA Performance Share Option Award $0 +5.46K $0.00 5.46K May 1, 2025 Class A Ordinary Share 5.46K $27.74 Direct F2, F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each Performance Share Unit (PSU) represents a contingent right to receive one Class A Ordinary Share of the Issuer, based upon the achievement of certain pre-established performance criteria, as certified by the Issuer's Compensation Committee.
F2 The award is subject to an earnout percentage of 100%, 75%, 50% or 0%, depending on the date of performance criteria achievement. This figure represents achievement at the 100% earnout performance achievement.
F3 The PSUs shall vest, if at all, upon the submission to the U.S. Food and Drug Administration (the "FDA") of a biologics license application for KPL-387 for the treatment of recurrent pericarditis, subject to the Participant's continued employment with the Company, subject to certain exceptions.
F4 The PSUs shall vest, if at all, upon the approval by the FDA of the commercial sale and marketing in the United States of KPL-387 for the treatment of recurrent pericarditis, subject to the Participant's continued employment with the Company, subject to certain exceptions.
F5 The Performance Share Options shall vest and become exercisable, if at all, upon the submission to the FDA of a biologics license application for KPL-387 for the treatment of recurrent pericarditis, subject to the Participant's continued employment with the Company, with certain exceptions.
F6 The Performance Share Options shall vest and become exercisable, if at all, upon the approval by the FDA of the commercial sale and marketing in the United States of KPL-387 for the treatment of recurrent pericarditis, subject to the Participant's continued employment with the Company, subject to certain exceptions.