[8-K] AMARIN CORP PLCUK Reports Material Event

Rhea-AI Filing Summary

Amarin Corporation plc filed a current report to note that it has released a press release with its preliminary unaudited 2025 financial highlights. The release also summarizes key operational accomplishments for 2025 and outlines the company’s priorities for 2026. This information is being furnished as an exhibit rather than filed, which limits how it is incorporated into other regulatory documents.

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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): January 8, 2026

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 January 8, 2026, Amarin Corporation plc (the “Company”) issued a press release announcing its preliminary unaudited 2025 financial highlights, providing a summary of key 2025 operational accomplishments, and outlined 2026 priorities (the "Press Release"). A copy of the Press Release is furnished herewith as Exhibit 99.1.

The information set forth under Item 2.02 and in the Press Release furnished as Exhibit 99.1 herewith 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, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.		Description
99.1		Press Release, dated January 8, 2026 (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: January 8, 2026				Amarin Corporation plc
				By:		/s/ Aaron Berg
						Aaron Berg
						President and Chief Executive Officer

FAQ

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

Amarin disclosed that it issued a press release containing preliminary unaudited 2025 financial highlights, a summary of key 2025 operational accomplishments, and its 2026 priorities.

Does the Amarin (AMRN) 8-K include full financial statements?

No. The 8-K refers to a separate press release with preliminary unaudited 2025 financial highlights, but detailed financial statements are not included in this text.

How is the Amarin (AMRN) press release treated for SEC purposes?

The press release attached as Exhibit 99.1 is being furnished, not filed, so it is not subject to Section 18 liability and is only incorporated into other filings if specifically referenced.

What time periods are covered by Amarin’s latest update?

The press release provides preliminary unaudited financial highlights and operational accomplishments for 2025 and outlines priorities for 2026.

Where can investors find the detailed 2025 highlights for Amarin (AMRN)?

Investors can find the detailed 2025 highlights in the press release dated January 8, 2026, which is attached as Exhibit 99.1 to this 8-K.