Eben Tessari - 01 Sep 2025 Form 4 Insider Report for Kiniksa Pharmaceuticals International, plc (KNSA)

Role
CHIEF OPERATING OFFICER
Signature
/s/ Aaron Young, Attorney-in-Fact
Issuer symbol
KNSA
Transactions as of
01 Sep 2025
Net transactions value
-$435,591
Form type
4
Filing time
03 Sep 2025, 17:31:30 UTC
Previous filing
20 Aug 2025
Next filing
08 Sep 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Tessari Eben CHIEF OPERATING OFFICER 23 OLD BOND STREET, THIRD FLOOR, LONDON, UNITED KINGDOM /s/ Aaron Young, Attorney-in-Fact 03 Sep 2025 0001867899

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction KNSA Class A Ordinary Share Options Exercise +1,746 +4.3% 41,961 01 Sep 2025 Direct F1
transaction KNSA Class A Ordinary Share Options Exercise +1,773 +4.2% 43,734 01 Sep 2025 Direct F1
transaction KNSA Class A Ordinary Share Options Exercise +2,726 +6.2% 46,460 01 Sep 2025 Direct F1
transaction KNSA Class A Ordinary Share Tax liability $101,207 -3,022 -6.5% $33.49 43,438 01 Sep 2025 Direct
transaction KNSA Class A Ordinary Share Options Exercise +1,964 +4.5% 45,402 02 Sep 2025 Direct F1
transaction KNSA Class A Ordinary Share Tax liability $32,566 -950 -2.1% $34.28 44,452 02 Sep 2025 Direct
transaction KNSA Class A Ordinary Share Options Exercise $1,009 +65 +0.15% $15.52 44,517 03 Sep 2025 Direct F2
transaction KNSA Class A Ordinary Share Options Exercise $232,903 +15,026 +34% $15.50 59,543 03 Sep 2025 Direct F2
transaction KNSA Class A Ordinary Share Sale $535,730 -15,091 -25% $35.50 44,452 03 Sep 2025 Direct F2, F3

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 +9,828 $0.000000 9,828 01 Sep 2025 Class A Ordinary Share 9,828 Direct F1, F4
transaction KNSA Share Option Award $0 +39,364 $0.000000 39,364 01 Sep 2025 Class A Ordinary Share 39,364 $33.49 Direct F5
transaction KNSA Restricted Share Unit Options Exercise $0 +1,746 +50% $0.000000 5,235 01 Sep 2025 Class A Ordinary Share 1,746 Direct F1, F6
transaction KNSA Restricted Share Unit Options Exercise $0 -1,773 -33% $0.000000 3,545 01 Sep 2025 Class A Ordinary Share 1,773 Direct F1, F7
transaction KNSA Restricted Share Unit Options Exercise $0 -2,726 -50% $0.000000 2,726 01 Sep 2025 Class A Ordinary Share 2,726 Direct F1, F8
transaction KNSA Restricted Share Unit Options Exercise $0 -1,964 -100% $0.000000 0 02 Sep 2025 Class A Ordinary Share 1,964 Direct F1, F9
transaction KNSA Share Option Options Exercise $0 -65 -0.11% $0.000000 59,935 03 Sep 2025 Class A Ordinary Share 65 $15.52 Direct F2, F10
transaction KNSA Share Option Options Exercise $0 -15,026 -25% $0.000000 44,974 03 Sep 2025 Class A Ordinary Share 15,026 $15.50 Direct F2, F10
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

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 This transaction was effected pursuant to a 10b5-1 plan executed by the reporting person on April 29, 2024.
F3 This transaction was executed in multiple trades through a broker-dealer at prices ranging between $35.50 and $35.53. The price reported in this column reflects a weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.
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, 2025.
F5 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.
F6 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.
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 1, 2023.
F8 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.
F9 The RSUs vest over a four-year period, with 25% of the RSUs vesting on each yearly anniversary of the vesting commencement date September 2, 2021.
F10 The option is fully vested and exercisable.