Kiniksa (NASDAQ: KNSA) director exercises 2,799 RSUs and gets options on 12,158 shares

Rhea-AI Filing Summary

Kiniksa Pharmaceuticals International, plc director Tracey L. McCain reported routine equity compensation activity. McCain exercised 2,799 Restricted Share Units (RSUs) into 2,799 Class A Ordinary Shares, bringing direct holdings in the shares to 15,345. The filing also shows a new grant of 2,026 RSUs and a separate grant of share options for 12,158 Class A Ordinary Shares at an exercise price of $48.38 per share. The option vests in twelve substantially equal monthly installments following the May 29, 2026 grant date, while the new RSUs vest in full on the earlier of the first anniversary of the grant date or the next annual shareholder meeting.

Insider Trade Summary

2,799 shares exercised/converted

Mixed 4 txns

Insider McCain Tracey L

Role null

Type	Security	Shares	Price	Value
Grant/Award	Share Option	12,158	$0.00	--
Grant/Award	Restricted Share Units	2,026	$0.00	--
Exercise	Restricted Share Units	2,799	$0.00	--
Exercise	Class A Ordinary Share	2,799	$0.00	--

Holdings After Transaction: Share Option — 12,158 shares (Direct, null); Restricted Share Units — 2,026 shares (Direct, null); Class A Ordinary Share — 15,345 shares (Direct, null)

Footnotes (1)

1. Each Restricted Share Unit (RSU) represents a contingent right to receive one Class A Ordinary Share of the Issuer. The option vests and becomes exercisable in twelve substantially equal monthly installments following the date of the grant with the final installment vesting on the earlier of a) the anniversary of the date of the grant and b) the date of the Issuer's annual meeting of shareholders in the following year. The date of the grant is May 29, 2026. The RSUs vest in their entirety on the earlier of a) the anniversary of the date of the grant and b) the date of the Issuer's annual meeting of shareholders in the following year. The date of the grant is May 29, 2026. The RSUs vested in a single installment on May 29, 2026; there was no expiration date for the RSUs.

Key Figures

RSUs exercised: 2,799 shares Shares held after exercise: 15,345 shares New RSU grant: 2,026 RSUs +2 more

5 metrics

RSUs exercised 2,799 shares Converted from RSUs into Class A Ordinary Shares on May 29, 2026

Shares held after exercise 15,345 shares Direct holdings of Class A Ordinary Shares following RSU conversion

New RSU grant 2,026 RSUs Grant on May 29, 2026, vesting by first anniversary or next annual meeting

New option grant 12,158 options Share options on Class A Ordinary Shares granted May 29, 2026

Option exercise price $48.38 per share Conversion or exercise price for 12,158-share option grant

Key Terms

Restricted Share Units, Class A Ordinary Share, Share Option, vests

4 terms

Restricted Share Units financial

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

Restricted share units (RSUs) are a promise from a company to give an employee or service provider actual shares or cash equal to the shares after certain conditions are met, typically staying with the company for a set time or hitting performance targets. Think of them like a time-locked gift card that becomes usable only after you’ve earned it. For investors, RSUs matter because they align employee incentives with company performance and can increase the number of shares outstanding over time, diluting existing ownership and affecting earnings per share.

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.

Share Option financial

"The option vests and becomes exercisable in twelve substantially equal monthly installments following the date of the grant"

vests financial

"The RSUs vest in their entirety on the earlier of a) the anniversary of the date of the grant"

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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).

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^*

McCain Tracey L

(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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/29/2026

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	05/29/2026		M		2,799	A	(1)	15,345	D

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	$48.38	05/29/2026		A		12,158		(2)	05/28/2036	Class A Ordinary Shares	12,158	$0	12,158	D
Restricted Share Units	(1)	05/29/2026		A		2,026		(3)	(3)	Class A Ordinary Shares	2,026	$0	2,026	D
Restricted Share Units	(1)	05/29/2026		M			2,799	(4)	(4)	Class A Ordinary Shares	2,799	$0	0	D

Explanation of Responses:

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

2. The option vests and becomes exercisable in twelve substantially equal monthly installments following the date of the grant with the final installment vesting on the earlier of a) the anniversary of the date of the grant and b) the date of the Issuer's annual meeting of shareholders in the following year. The date of the grant is May 29, 2026.

3. The RSUs vest in their entirety on the earlier of a) the anniversary of the date of the grant and b) the date of the Issuer's annual meeting of shareholders in the following year. The date of the grant is May 29, 2026.

4. The RSUs vested in a single installment on May 29, 2026; there was no expiration date for the RSUs.

	/s/ Douglas Barry, Attorney-in-Fact	06/02/2026
	** 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) director Tracey L. McCain report?

Tracey L. McCain reported exercising 2,799 RSUs into Class A Ordinary Shares and receiving new grants of 2,026 RSUs and options for 12,158 shares. These are equity compensation-related acquisitions, not open-market purchases or sales.

How many Kiniksa (KNSA) shares does Tracey L. McCain hold after these Form 4 transactions?

After exercising 2,799 RSUs, Tracey L. McCain directly holds 15,345 Class A Ordinary Shares. This reflects her updated equity position in Kiniksa following the conversion of vested RSUs into shares as disclosed in the Form 4.

What are the key terms of the new Kiniksa (KNSA) share option grant to Tracey L. McCain?

McCain received options on 12,158 Class A Ordinary Shares with a conversion or exercise price of $48.38 per share. The options vest in twelve substantially equal monthly installments following the May 29, 2026 grant date, ending by the earlier of one year or the next shareholder meeting.

How do the new RSUs granted to Kiniksa (KNSA) director Tracey L. McCain vest?

The 2,026 newly granted RSUs vest in their entirety on the earlier of the first anniversary of the May 29, 2026 grant date or the date of Kiniksa’s annual meeting of shareholders in the following year, then convert into an equal number of Class A Ordinary Shares.

Were there any open-market stock sales or purchases by Tracey L. McCain in this KNSA Form 4?

No open-market purchases or sales are shown. The Form 4 reflects an exercise of 2,799 RSUs into shares and two equity compensation grants—2,026 RSUs and options on 12,158 shares—without any reported market transactions.