Kiniksa (KNSA) CEO Sanj K. Patel exercises options and sells 7,278 shares

Rhea-AI Filing Summary

Kiniksa Pharmaceuticals International, plc Chairman & CEO Sanj K. Patel reported multiple equity transactions in the company’s Class A Ordinary Shares. On April 6, 2026, he exercised options for 7,278 shares at $10.36 per share and sold 7,278 shares at a weighted average price of about $50.01 in an open-market transaction executed under a pre-arranged Rule 10b5-1 trading plan.

On April 7, 2026, 9,991 Restricted Share Units converted into the same number of Class A Ordinary Shares, credited to The Patel Family Irrevocable Trust of 2025. Of these, 4,831 shares were withheld at $48.94 per share to cover tax obligations, leaving 76,174 shares in that trust. Additional indirect holdings include 109,795 shares in The Marina 2016 Irrevocable Trust and 51,794 shares in The Anglia 2013 Revocable Trust.

Insider Trade Summary 10b5-1

Net Seller: 7,278 shares ($363,973)

Net Sell 8 txns

Insider Patel Sanj K

Role CHAIRMAN & CEO

Sold 7,278 shs ($364K)

Type	Security	Shares	Price	Value
Exercise	Restricted Share Unit	9,991	$0.00	--
Exercise	Class A Ordinary Share	9,991	$0.00	--
Tax Withholding	Class A Ordinary Share	4,831	$48.94	$236K
Exercise	Share Option	7,278	$0.00	--
Exercise	Class A Ordinary Share	7,278	$10.36	$75K
Sale	Class A Ordinary Share	7,278	$50.01	$364K
holding	Class A Ordinary Share	--	--	--
holding	Class A Ordinary Share	--	--	--

Holdings After Transaction: Restricted Share Unit — 0 shares (Direct); Class A Ordinary Share — 81,005 shares (Indirect, Held by The Patel Family Irrevocable Trust of 2025); Share Option — 431,904 shares (Direct); Class A Ordinary Share — 7,278 shares (Direct)

Footnotes (1)

1. This transaction was effected pursuant to a 10b5-1 plan executed by the reporting person on October 31, 2025. This transaction was executed in multiple trades through a broker-dealer at prices ranging between $50.005 and $50.03. 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. Each Restricted Share Unit (RSU) represents a contingent right to receive one Class A Ordinary Share of the Issuer. The option is fully vested and exercisable. The RSUs vest over a four-year period, with 25% of the RSs vesting on the yearly anniversary of the grant date, April 7, 2022.

Key Figures

Open-market sale: 7,278 shares at $50.01 Option exercise: 7,278 shares at $10.36 RSUs converted: 9,991 shares +4 more

7 metrics

Open-market sale 7,278 shares at $50.01 Class A Ordinary Shares sold on April 6, 2026

Option exercise 7,278 shares at $10.36 Share option exercised on April 6, 2026

RSUs converted 9,991 shares RSUs into Class A Ordinary Shares on April 7, 2026

Tax withholding 4,831 shares at $48.94 Shares withheld for tax from trust on April 7, 2026

Patel Family Trust holding 76,174 shares Class A Ordinary Shares after tax withholding

Marina 2016 Trust holding 109,795 shares Indirect Class A Ordinary Shares holding

Anglia 2013 Trust holding 51,794 shares Indirect Class A Ordinary Shares holding

Key Terms

Restricted Share Unit, Rule 10b5-1 plan, tax liability, Class A Ordinary Share, +1 more

5 terms

Restricted Share Unit financial

"Each Restricted Share Unit (RSU) represents a contingent right to receive one Class A Ordinary Share of the Issuer."

A restricted share unit (RSU) is a promise by a company to give an employee a set number of company shares at a future date, typically after meeting time or performance conditions. For investors, RSUs matter because when they convert into actual shares they increase the number of shares outstanding (like unlocking more tickets in a game), which can dilute existing holders, and they align employee incentives with company performance, influencing behavior and long-term value.

Rule 10b5-1 plan regulatory

"This transaction was effected pursuant to a 10b5-1 plan executed by the reporting person on October 31, 2025."

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

tax liability financial

"Payment of exercise price or tax liability by delivering securities"

Class A Ordinary Share financial

"Each Restricted Share Unit (RSU) represents a contingent right to receive one Class A Ordinary Share of the Issuer."

A Class A ordinary share is a type of common stock a company issues that carries a specific set of rights—most often particular voting power, dividend terms, or transfer rules—distinct from other share classes. For investors it matters because those rights affect control over company decisions, how income is paid out, and how easy shares are to buy or sell; think of it like a tiered ticket that gives different access and influence at the same event.

fully vested and exercisable financial

"The option is fully vested and exercisable."

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Patel Sanj K

(Last) (First) (Middle)

C/O KINIKSA PHARMACEUTICALS INT'L

105 PICCADILLY, SECOND FLOOR

(Street)

LONDON W1J 7NJ

(City) (State) (Zip)

UNITED KINGDOM

(Country)

2. Issuer Name and Ticker or Trading Symbol
Kiniksa Pharmaceuticals International, plc [ KNSA ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CHAIRMAN & CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/06/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Ordinary Share	04/06/2026		M(1)		7,278	A	$10.36	7,278	D
Class A Ordinary Share	04/06/2026		S(1)		7,278	D	$50.01(2)	0	D
Class A Ordinary Share	04/07/2026		M		9,991	A	(3)	81,005	I	Held by The Patel Family Irrevocable Trust of 2025
Class A Ordinary Share	04/07/2026		F		4,831	D	$48.94	76,174	I	Held by The Patel Family Irrevocable Trust of 2025
Class A Ordinary Share								109,795	I	Held by The Marina 2016 Irrevocable Trust, u/d/t June 23, 2016
Class A Ordinary Share								51,794	I	Held by The Anglia 2013 Revocable Trust

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Share Option	$10.36	04/06/2026		M			7,278	(4)	02/29/2028	Class A Ordinary Share	7,278	$0	431,904	D
Restricted Share Unit	(3)	04/07/2026		M			9,991	(5)	(5)	Class A Ordinary Share	9,991	$0	0	D

Explanation of Responses:

1. This transaction was effected pursuant to a 10b5-1 plan executed by the reporting person on October 31, 2025.

2. This transaction was executed in multiple trades through a broker-dealer at prices ranging between $50.005 and $50.03. 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.

3. Each Restricted Share Unit (RSU) represents a contingent right to receive one Class A Ordinary Share of the Issuer.

4. The option is fully vested and exercisable.

5. The RSUs vest over a four-year period, with 25% of the RSs vesting on the yearly anniversary of the grant date, April 7, 2022.

	/s/ Douglas Barry, Attorney-in-Fact	04/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did Kiniksa (KNSA) report for Sanj K. Patel?

Kiniksa reported that Chairman & CEO Sanj K. Patel exercised options for 7,278 Class A Ordinary Shares and sold 7,278 shares in an open-market trade. He also settled 9,991 Restricted Share Units into shares, largely held through a family trust structure.

How many Kiniksa (KNSA) shares did Sanj K. Patel sell and at what price?

Sanj K. Patel sold 7,278 Class A Ordinary Shares at a weighted average price of about $50.01 per share. The sale occurred through multiple broker-dealer trades within a narrow price range between $50.005 and $50.03, as disclosed in the filing footnotes.

Were the recent Kiniksa (KNSA) insider sales by Sanj K. Patel pre-planned?

Yes. The filing states the transaction was carried out under a Rule 10b5-1 trading plan executed on October 31, 2025. Such plans pre-schedule trades, indicating the timing of these sales was predetermined rather than based on short-term market movements or new information.

What happened to Sanj K. Patel’s Restricted Share Units in Kiniksa (KNSA)?

9,991 Restricted Share Units converted into 9,991 Class A Ordinary Shares. These shares were credited to The Patel Family Irrevocable Trust of 2025, reflecting vesting of equity awards that represent compensation rather than open-market purchases, with a portion later withheld for tax obligations.

How many Kiniksa (KNSA) shares were withheld for Sanj K. Patel’s tax obligations?

4,831 Class A Ordinary Shares were withheld at $48.94 per share to satisfy tax liabilities. This tax-withholding disposition is coded as an F transaction and is not an open-market sale, but a mechanism for paying taxes due on vested equity awards.

What indirect Kiniksa (KNSA) shareholdings are associated with Sanj K. Patel?

Indirect holdings include 76,174 shares in The Patel Family Irrevocable Trust of 2025, 109,795 shares in The Marina 2016 Irrevocable Trust, and 51,794 shares in The Anglia 2013 Revocable Trust, reflecting substantial ongoing exposure through family trust vehicles.