Mark Ragosa - Sep 1, 2025 Form 4 Insider Report for Kiniksa Pharmaceuticals International, plc (KNSA)

Role
CHIEF FINANCIAL OFFICER
Signature
/s/ Aaron Young, Attorney-in-Fact
Stock symbol
KNSA
Transactions as of
Sep 1, 2025
Transactions value $
-$128,643
Form type
4
Date filed
9/3/2025, 04:45 PM
Previous filing
Aug 6, 2025
Next filing
Oct 30, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Ragosa Mark CHIEF FINANCIAL OFFICER 23 OLD BOND STREET, THIRD FLOOR, LONDON, UNITED KINGDOM /s/ Aaron Young, Attorney-in-Fact 2025-09-03 0001835458

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction KNSA Class A Ordinary Share Options Exercise +1.59K +5.89% 28.6K Sep 1, 2025 Direct F1
transaction KNSA Class A Ordinary Share Options Exercise +1.75K +6.12% 30.4K Sep 1, 2025 Direct F1
transaction KNSA Class A Ordinary Share Options Exercise +2.69K +8.88% 33K Sep 1, 2025 Direct F1
transaction KNSA Class A Ordinary Share Tax liability -$97.8K -2.92K -8.84% $33.49 30.1K Sep 1, 2025 Direct
transaction KNSA Class A Ordinary Share Options Exercise +1.86K +6.18% 32K Sep 2, 2025 Direct F1
transaction KNSA Class A Ordinary Share Tax liability -$30.9K -900 -2.81% $34.28 31.1K Sep 2, 2025 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 Award $0 +12.3K $0.00 12.3K Sep 1, 2025 Class A Ordinary Share 12.3K Direct F1, F2
transaction KNSA Share Option Award $0 +39.4K $0.00 39.4K Sep 1, 2025 Class A Ordinary Share 39.4K $33.49 Direct F3
transaction KNSA Restricted Share Unit Options Exercise $0 -1.59K -25.01% $0.00 4.77K Sep 1, 2025 Class A Ordinary Share 1.59K Direct F1, F4
transaction KNSA Restricted Share Unit Options Exercise $0 -1.75K -33.33% $0.00 3.5K Sep 1, 2025 Class A Ordinary Share 1.75K Direct F1, F5
transaction KNSA Restricted Share Unit Options Exercise $0 -2.69K -50% $0.00 2.69K Sep 1, 2025 Class A Ordinary Share 2.69K Direct F1, F6
transaction KNSA Restricted Share Unit Options Exercise $0 -1.86K -100% $0.00 0 Sep 2, 2025 Class A Ordinary Share 1.86K Direct F1, F7
* 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 Ordinary Share of the Issuer.
F2 The RSUs vest over a four-year period, with 25% of the RSUs vesting on each yearly anniversary of the grant date September 1, 2025.
F3 The option vests and becomes exercisable as to 25% of the total grant on the first anniversary of the vesting commencement date and vests in 36 equal monthly installments thereafter. The vesting commencement date is September 1, 2025.
F4 The RSUs vest over a four-year period, with 25% of the RSUs vesting on each yearly anniversary of the grant date September 1, 2024.
F5 The RSUs vest over a four-year period, with 25% of the RSUs vesting on each yearly anniversary of the date of grant, September 1, 2023.
F6 The RSUs vest over a four-year period, with 25% of the RSUs vesting on each yearly anniversary of the date of grant, September 1, 2022.
F7 The RSUs vest over a four-year period, with 25% of the RSUs vesting on each yearly anniversary of the date of grant, September 2, 2021.