Kiniksa (NASDAQ: KNSA) CFO exercises 2,694 RSUs, covers tax with shares

Rhea-AI Filing Summary

Kiniksa Pharmaceuticals International, plc chief financial officer Mark Ragosa exercised 2,694 Restricted Share Units into Class A Ordinary Shares on April 7, 2026. Each RSU converts into one share and is part of a grant that vests in four equal annual installments starting April 7, 2022.

To cover tax obligations from this vesting, 1,303 Class A Ordinary Shares were withheld at a price of $48.94 per share, rather than sold in the open market. After these compensation-related transactions, Ragosa directly holds 16,154 Class A Ordinary Shares.

Insider Trade Summary

2,694 shares exercised/converted

Mixed 3 txns

Insider Ragosa Mark

Role CHIEF FINANCIAL OFFICER

Type	Security	Shares	Price	Value
Exercise	Restricted Share Unit	2,694	$0.00	--
Exercise	Class A Ordinary Share	2,694	$0.00	--
Tax Withholding	Class A Ordinary Share	1,303	$48.94	$64K

Holdings After Transaction: Restricted Share Unit — 0 shares (Direct); Class A Ordinary Share — 17,457 shares (Direct)

Footnotes (1)

1. Each Restricted Share Unit (RSU) represents a contingent right to receive one Class A Ordinary Share of the Issuer. The RSUs vest over a four-year period, with 25% of the RSUs vesting on each yearly anniversary of the date of grant, April 7, 2022.

Key Figures

RSUs exercised: 2,694 units Shares withheld for taxes: 1,303 shares at $48.94 Shares held after transaction: 16,154 shares +1 more

4 metrics

RSUs exercised 2,694 units Restricted Share Units converted into Class A Ordinary Shares on April 7, 2026

Shares withheld for taxes 1,303 shares at $48.94 Class A Ordinary Shares withheld to cover tax liability from RSU vesting

Shares held after transaction 16,154 shares Direct Class A Ordinary Share holdings following RSU exercise and tax withholding

RSU vesting schedule 4 years, 25% annually RSUs vest each year on the anniversary of April 7, 2022

Key Terms

Restricted Share Unit, tax-withholding disposition, derivative security, Class A Ordinary Share

4 terms

Restricted Share Unit financial

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

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.

tax-withholding disposition financial

"transaction_action: tax-withholding disposition for 1,303 Class A Ordinary Shares"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

Class A Ordinary Share financial

"Each 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.

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^*

Ragosa Mark

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CHIEF FINANCIAL OFFICER

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/07/2026

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	04/07/2026		M		2,694	A	(1)	17,457	D
Class A Ordinary Share	04/07/2026		F		1,303	D	$48.94	16,154	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
Restricted Share Unit	(1)	04/07/2026		M			2,694	(2)	(2)	Class A Ordinary Share	2,694	$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 RSUs vest over a four-year period, with 25% of the RSUs vesting on each yearly anniversary of the date of grant, 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 did Kiniksa (KNSA) CFO Mark Ragosa report in this Form 4?

Kiniksa CFO Mark Ragosa exercised 2,694 Restricted Share Units into Class A Ordinary Shares. The transaction reflects routine equity compensation vesting rather than an open-market trade, with part of the shares withheld to satisfy related tax obligations.

How many Kiniksa (KNSA) RSUs vested and were exercised by the CFO?

A total of 2,694 Restricted Share Units vested and were exercised into 2,694 Class A Ordinary Shares. Each RSU represents a contingent right to receive one share, tied to a four-year vesting schedule beginning April 7, 2022.

Were any Kiniksa (KNSA) shares sold by the CFO in the market?

No open-market sale occurred. Instead, 1,303 Class A Ordinary Shares were disposed of at $48.94 per share solely to cover tax liabilities associated with the RSU vesting, a standard tax-withholding mechanism rather than a discretionary sale.

How many Kiniksa (KNSA) shares does the CFO hold after these transactions?

Following the RSU exercise and related tax withholding, CFO Mark Ragosa directly holds 16,154 Class A Ordinary Shares. This figure reflects his updated equity position after converting vested RSUs and having a portion of shares withheld to satisfy taxes.

What is the vesting schedule for the Kiniksa (KNSA) RSUs granted to the CFO?

The Restricted Share Units vest over four years, with 25% of the RSUs vesting on each yearly anniversary of the grant date, April 7, 2022. This structure gradually delivers shares as long-term compensation tied to continued service.