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as of 03-12-2026 3:42pm EST

$46.37
+$0.06
+0.13%
Stocks Health Care Biotechnology: Pharmaceutical Preparations Nasdaq

Kiniksa Pharmaceuticals International PLC is a clinical-stage biopharmaceutical company focused on discovering, acquiring, developing, and commercializing therapeutic medicines for patients suffering from debilitating diseases. The company's clinical-stage product candidates include Rilonacept, abiprubart, and mavrilimumab.

Founded: 2015 Country:
United Kingdom
United Kingdom
Employees: N/A City: LONDON
Market Cap: 3.4B IPO Year: 2018
Target Price: $55.29 AVG Volume (30 days): 574.8K
Analyst Decision: Strong Buy Number of Analysts: 7
Dividend Yield:
N/A
Dividend Payout Frequency: N/A
EPS: 0.75 EPS Growth: 225.00
52 Week Low/High: $18.25 - $49.12 Next Earning Date: N/A
Revenue: $677,564,000 Revenue Growth: 60.09%
Revenue Growth (this year): 38.01% Revenue Growth (next year): 17.42%
P/E Ratio: 61.77 Index: N/A
Free Cash Flow: 136.4M FCF Growth: +436.82%

Stock Insider Trading Activity of Kiniksa Pharmaceuticals Ltd. (KNSA)

Ragosa Mark

CHIEF FINANCIAL OFFICER

Sell
KNSA Mar 9, 2026

Avg Cost/Share

$45.91

Shares

36,722

Total Value

$1,686,157.82

Owned After

12,086

Paolini John F.

CHIEF MEDICAL OFFICER

Sell
KNSA Mar 2, 2026

Avg Cost/Share

$45.00

Shares

40,000

Total Value

$1,792,939.72

Owned After

89,261

SEC Form 4

Form 1 Form 2
Sell
KNSA Feb 12, 2026

Avg Cost/Share

$45.00

Shares

2,690

Total Value

$121,050.00

Owned After

12,546

SEC Form 4

Sell
KNSA Feb 10, 2026

Avg Cost/Share

$45.00

Shares

110

Total Value

$4,950.00

Owned After

12,546

SEC Form 4

Ragosa Mark

CHIEF FINANCIAL OFFICER

Sell
KNSA Feb 9, 2026

Avg Cost/Share

$43.29

Shares

17,845

Total Value

$772,254.22

Owned After

12,086

Sell
KNSA Feb 4, 2026

Avg Cost/Share

$45.02

Shares

2,602

Total Value

$117,142.04

Owned After

12,546

SEC Form 4

Sell
KNSA Feb 3, 2026

Avg Cost/Share

$45.27

Shares

12,528

Total Value

$567,142.56

Owned After

12,546

SEC Form 4

Sell
KNSA Feb 2, 2026

Avg Cost/Share

$45.00

Shares

830

Total Value

$37,350.00

Owned After

12,546

SEC Form 4

Ragosa Mark

CHIEF FINANCIAL OFFICER

Sell
KNSA Jan 8, 2026

Avg Cost/Share

$41.89

Shares

12,000

Total Value

$502,680.00

Owned After

12,086

SEC Form 4

Tessari Eben

CHIEF OPERATING OFFICER

Sell
KNSA Dec 15, 2025

Avg Cost/Share

$41.56

Shares

12,048

Total Value

$500,714.88

Owned After

16,666

SEC Form 4

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2025
Q4

Q4 2025 Earnings

8-K SELL

Feb 24, 2026 · 100% conf.

AI Prediction SELL

1D

-1.78%

$42.72

Act: -1.70%

5D

-2.19%

$42.55

Act: +4.30%

20D

-2.34%

$42.48

Price: $43.50 Prob +5D: 0% AUC: 1.000
0001730430-26-000014

Kiniksa Pharmaceuticals International, plc_February 24, 2026 0001730430false00017304302026-02-242026-02-24 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 ​ Date of Report (Date of earliest event reported): February 24, 2026 ​ Kiniksa Pharmaceuticals International, plc (Exact name of Registrant as Specified in Its Charter) ​ ​

England and Wales ​ ​ ​ 001-730430 ​ ​ ​ 98-1795578

(State or other jurisdiction of incorporation or organization) ​ (Commission File Number) ​ (I.R.S. Employer Identification No.)

​ Kiniksa Pharmaceuticals International, plc 105 Piccadilly, Second Floor London, W1J 7NJ England, United Kingdom (781) 431-9100 (Address, zip code and telephone number, including area code of principal executive offices) ​ Kiniksa Pharmaceuticals Corp. 100 Hayden Avenue Lexington, MA, 02421 (781) 431-9100 (Address, zip code and telephone number, including area code of agent for service) ​ N/A (Former Name or Former Address, if Changed Since Last Report) ​ Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions ​ ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) ​ Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class ​ ​ ​ Trading Symbol(s) ​ ​ ​ Name of each exchange on which registered

Class A Ordinary Shares $0.000273235 nominal value ​

KNSA

​ The Nasdaq Stock Market LLC

​ ​ ​ ​ (Nasdaq Global Select Market)

​ Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ​ Emerging growth company ☐ ​ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​ ​

Item 2.02. Results of Operations and Financial Condition ​ On February 24, 2026, Kiniksa Pharmaceuticals International, plc issued a press release announcing financial results for the fiscal year ended December 31, 2025. A copy of the press release is furnished with this Current Report on Form 8-K as Exhibit 99.1. ​ Item 9.01. Financial Statements and Exhibits. ​ (d) Exhibits ​ ​

Exhibit No. ​ ​ ​ Description

​ ​ ​

99.1 ​ Press Release issued by Kiniksa Pharmaceuticals International, plc, dated February 24, 2026

​ ​ ​

104 ​ Cover Page Interactive Data File (embedded within the inline XBRL document)

​ ​ ​

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

KINIKSA PHARMACEUTICALS INTERNATIONAL, PLC

​ ​

Date: February 24, 2026 By: /s/ Douglas Barry

​ ​ Douglas Barry

​ ​ Senior Vice President, Chief Legal Officer and Secretary

​ ​ ​

2025
Q4

Q4 2025 Earnings

8-K SELL

Jan 12, 2026 · 100% conf.

AI Prediction SELL

1D

-1.78%

$42.72

Act: -1.70%

5D

-2.19%

$42.55

Act: +4.30%

20D

-2.34%

$42.48

Price: $43.50 Prob +5D: 0% AUC: 1.000
0001730430-26-000005

Kiniksa Pharmaceuticals International, plc_January 12, 2026 0001730430false00017304302026-01-122026-01-12 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 ​ Date of Report (Date of earliest event reported): January 12, 2026 ​ Kiniksa Pharmaceuticals International, plc (Exact name of Registrant as Specified in Its Charter) ​ ​

England and Wales ​ ​ ​ 001-730430 ​ ​ ​ 98-1795578

(State or other jurisdiction of incorporation or organization) ​ (Commission File Number) ​ (I.R.S. Employer Identification No.)

​ 105 Piccadilly, Second Floor London, W1J 7NJ England, United Kingdom (781) 431-9100 (Address, zip code and telephone number, including area code of principal executive offices) ​ Kiniksa Pharmaceuticals Corp. 100 Hayden Avenue Lexington, MA, 02421 (781) 431-9100 (Address, zip code and telephone number, including area code of agent for service) ​ 23 Old Bond Street, Floor 3 London, W1S 4PZ England, United Kingdom (Former Name or Former Address, if Changed Since Last Report) ​ Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions ​ ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) ​ Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class ​ ​ ​ Trading Symbol(s) ​ ​ ​ Name of each exchange on which registered

Class A Ordinary Shares $0.000273235 nominal value ​

KNSA

​ The Nasdaq Stock Market LLC

​ ​ ​ ​ (Nasdaq Global Select Market)

​ Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ​ Emerging growth company ☐ ​ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​ ​

Item 2.02. Results of Operations and Financial Condition

On January 12, 2026, Kiniksa Pharmaceuticals International, plc (the “Company”) issued a press release announcing, among other things, that (i) ARCALYST net product revenue was $677.5 million for the full year 2025 (unaudited), (ii) gross-to-net was 8.4% for the full year 2025 (unaudited) and (iii) as of December 31, 2025 it had $414.1 million of cash, cash equivalents and short-term investments and no debt (unaudited). A copy of the press release is furnished with this Current Report on Form 8-K as Exhibit 99.1. ​ Item 9.01. Financial Statements and Exhibits. ​ (d) Exhibits ​ ​

Exhibit No. ​ ​ ​ Description

​ ​ ​

99.1 ​ Press Release issued by Kiniksa Pharmaceuticals International, plc, dated January 12, 2026

​ ​ ​

104 ​ Cover Page Interactive Data File (embedded within the inline XBRL document)

​ ​ ​

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

KINIKSA PHARMACEUTICALS INTERNATIONAL, PLC

​ ​

Date: January 12, 2026 By: /s/ Douglas Barry

​ ​ Douglas Barry

​ ​ Senior Vice President, Chief Legal Officer

​ ​ ​

2025
Q3

Q3 2025 Earnings

8-K

Oct 28, 2025

0001104659-25-102834

false 0001730430

0001730430

2025-10-28 2025-10-28

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 28, 2025

Kiniksa Pharmaceuticals International, plc

(Exact name of Registrant as Specified in Its Charter)

England and Wales

001-730430

98-1795578

(State or other jurisdiction of

incorporation or organization)

(Commission

File Number)

(I.R.S. Employer

Identification No.)

23 Old Bond Street, Floor 3

London, W1S 4PZ

England, United Kingdom

(Address of principal executive offices, including zip code)

(781) 431-9100

(Registrant’s telephone number, including area code)

N/A

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions

¨Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading

Symbol(s)

Name of each exchange on which

registered

Class A Ordinary Shares, $0.000273235 nominal value

KNSA

The Nasdaq Stock Market LLC

(Nasdaq Global Select Market)

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 2.02. Results of Operations and Financial Condition.

On October 28, 2025, Kiniksa Pharmaceuticals International, plc issued a press release announcing financial results for the quarter ended September 30, 2025. A copy of the press release is furnished with this Current Report on Form 8-K as Exhibit 99.1.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit

No.

Description

99.1

Earnings Press Release issued by Kiniksa Pharmaceuticals International, plc, dated October 28, 2025

104

Cover Page Interactive Data File (embedded within the inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

KINIKSA PHARMACEUTICALS INTERNATIONAL, PLC

Date: October 28, 2025 By: /s/ Douglas Barry

Douglas Barry

Senior Vice President, Chief Legal Officer and Secretary

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