# EDGAR Filing Document

**Accession Number:** 0000897448
**File Stem:** 0001193125-23-086943
**Filing Date:** 2023-3
**Character Count:** 5668
**Document Hash:** a8b939f95a0890c408de5a1ba819e816
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-086943.hdr.sgml**: 20230331

**ACCESSION NUMBER**: 0001193125-23-086943

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20230327

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**ITEM INFORMATION**: Regulation FD Disclosure

**FILED AS OF DATE**: 20230331

**DATE AS OF CHANGE**: 20230331

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AMARIN CORP PLC\UK
- **CENTRAL INDEX KEY:** 0000897448
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** X0
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-21392
- **FILM NUMBER:** 23783565

**BUSINESS ADDRESS:**
- **STREET 1:** SPACES SOUTH DOCKLANDS, BLOCK C
- **STREET 2:** 77 SIR JOHN ROGERSON'S QUAY
- **CITY:** DUBLIN 2
- **STATE:** L2
- **ZIP:** D02 VK60
- **BUSINESS PHONE:** 353 1 6699 020

**MAIL ADDRESS:**
- **STREET 1:** SPACES SOUTH DOCKLANDS, BLOCK C
- **STREET 2:** 77 SIR JOHN ROGERSON'S QUAY
- **CITY:** DUBLIN 2
- **STATE:** L2
- **ZIP:** D02 VK60

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AMARIN PHARMACEUTICALS PLC
- **DATE OF NAME CHANGE:** 20000201

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ETHICAL HOLDINGS PLC
- **DATE OF NAME CHANGE:** 19930322

?xml version="1.0" encoding="utf-8" ? 8-K

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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### WASHINGTON, D.C. 20549

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### FORM 8-K

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#### CURRENT REPORT

#### Pursuant to Section 13 or 15(d)

#### of the Securities Exchange Act of 1934

#### Date of Report (Date of Earliest Event Reported): March 27, 2023

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## Amarin Corporation plc

#### (Exact name of registrant as specified in its charter)

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

---

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| | |
|:---|:---|
| **Iconic Offices, The Greenway,**<br> **Block C Ardilaun Court**<br> **112-114 St Stephens Green,**<br> **Dublin 2, Ireland** | **Not applicable** |
| **(Address of principal executive offices)** | **(Zip Code)** |

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

#### Not Applicable

#### Former name or former address, if changed since last report

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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:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading<br>Symbol** | **Name of each exchange<br>on which registered** |
| American Depositary Shares (ADS(s)), each ADS representing the right to receive one (1) Ordinary Share of Amarin Corporation plc | AMRN | NASDAQ Stock Market LLC |

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

☐ 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. ☐

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| | |
|:---|:---|
| **Item 5.02(b)** | **Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers**  |

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On March 27, 2023, Karim Mikhail notified Amarin Corporation plc (the "Company") of his decision to resign as President and Chief Executive Officer of the Company, effective immediately. Mr. Mikhail has asserted that he is entitled to severance payments as the result of his resignation, which the Company disagrees with and intends to dispute. The Company is in the process of identifying a permanent replacement for Mr. Mikhail.

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| | |
|:---|:---|
| **Item 7.01** | **Regulation FD Disclosure**  |

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The Board is also announcing that it has appointed Odysseas D. Kostas as chairperson of the Board.

*The information set forth under Item 7.01 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.* 

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#### 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.

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| | | |
|:---|:---|:---|
| Date: March 31, 2023 | Amarin Corporation plc | Amarin Corporation plc |
|  | By: | /s/ Tom Reilly |
|  |  | Tom Reilly |
|  |  | Chief Financial Officer |

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