[8-K] AMARIN CORP PLC\UK Reports Material Event

Rhea-AI Filing Summary

Amarin Corporation plc furnished a Form 8-K announcing it issued a press release with financial results for the three and nine months ended September 30, 2025 and 2024.

The press release is included as Exhibit 99.1. The information is furnished under Item 2.02 and is not deemed filed under Section 18 of the Exchange Act, except as specifically incorporated by reference in future filings.

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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 29, 2025

Amarin Corporation plc

(Exact name of registrant as specified in its charter)

England and Wales	0-21392	Not applicable
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

8th Floor, One Central Plaza, Dame Street, Dublin 2, Co. Dublin, D02 K7K5, Ireland		Not applicable
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: +353 1 6699 020

Not Applicable

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	Name of each exchange on which registered
American Depositary Shares (ADS(s)), each ADS representing the right to receive twenty (20) Ordinary Shares of Amarin Corporation plc	AMRN	Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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 29, 2025, Amarin Corporation plc (“Amarin”) issued a press release announcing its financial results for the three and nine months ended September 30, 2025 and 2024 (the “Press Release”). A copy of the Press Release is furnished herewith as Exhibit 99.1.

The information in this report furnished pursuant to Item 2.02 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), if such subsequent filing specifically references the information furnished pursuant to Item 2.02 of this report.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.		Description
99.1		Press Release (results of operations), dated October 29, 2025 (furnished herewith)
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.

Date: October 29, 2025		Amarin Corporation plc
		By:	/s/ Aaron Berg
			Aaron Berg
			President and Chief Executive Officer

FAQ

What did Amarin (AMRN) disclose in this Form 8-K?

Amarin furnished a press release announcing financial results for the three and nine months ended September 30, 2025 and 2024.

Which exhibit contains Amarin’s results press release?

Exhibit 99.1 contains the results of operations press release dated October 29, 2025.

Is the information in this 8-K considered filed or furnished?

It is furnished under Item 2.02 and is not deemed filed under Section 18 of the Exchange Act unless specifically incorporated by reference.

What periods are covered by the results announced by Amarin (AMRN)?

The results cover the three and nine months ended September 30, 2025 and 2024.

What is Amarin’s trading symbol and listing?

Amarin trades on Nasdaq under the symbol AMRN as American Depositary Shares (each ADS represents twenty ordinary shares).

When was the press release dated?

The press release was dated October 29, 2025.