# EDGAR Filing Document

**Accession Number:** 0001577524
**File Stem:** 0001140361-23-005127
**Filing Date:** 2023-2
**Character Count:** 22892
**Document Hash:** 269d0828f7e2c65befc27fe51284f1c2
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-23-005127.hdr.sgml**: 20230208

**ACCESSION NUMBER**: 0001140361-23-005127

**CONFORMED SUBMISSION TYPE**: SC 13D/A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20230208

**DATE AS OF CHANGE**: 20230208

**GROUP MEMBERS**: ALEXANDER J. DENNER, PH.D.

**GROUP MEMBERS**: LOUIS STERLING III

**SUBJECT COMPANY**: 

**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:** SC 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-52399
- **FILM NUMBER:** 23597242

**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
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Sarissa Capital Management LP
- **CENTRAL INDEX KEY:** 0001577524
- **IRS NUMBER:** 900924432
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** 660 STEAMBOAT ROAD
- **CITY:** GREENWICH
- **STATE:** CT
- **ZIP:** 06830
- **BUSINESS PHONE:** 203-302-2330

**MAIL ADDRESS:**
- **STREET 1:** 660 STEAMBOAT ROAD
- **CITY:** GREENWICH
- **STATE:** CT
- **ZIP:** 06830

------

**UNITED STATES**<br> **SECURITIES AND EXCHANGE COMMISSION**<br> Washington, D.C. 20549

#### <br> SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 6)\*<br>

---

| |
|:---|
| Amarin Corporation plc |
| (Name of Issuer) |
| Ordinary Shares, par value 50 pence per share |
| (Title of Class of Securities) |
| 023111206 |
| (CUSIP Number) |
| Mark DiPaolo<br> Senior Partner, General Counsel<br> Sarissa Capital Management LP<br> 660 Steamboat Road<br> Greenwich, CT 06830<br> 203-302-2330 |
| (Name, Address and Telephone Number of Person<br> Authorized to Receive Notices and Communications) |
| February 7, 2023 |
| (Date of Event which Requires Filing of this Statement) |

---

If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box. ☐

**Note:** Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties to whom copies are to be sent.

\*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

------

CUSIP No. 023111206 SCHEDULE 13D <br> Page 2 of 8 Pages

---

| | | | | |
|:---|:---|:---|:---|:---|
| 1 | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Sarissa Capital Management LP | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Sarissa Capital Management LP | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Sarissa Capital Management LP | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Sarissa Capital Management LP |
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP | <br> (a) ☐ <br>(b) ☐ <br>|
| 3 | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY |
| 4 | SOURCE OF FUNDS<br>WC | SOURCE OF FUNDS<br>WC | SOURCE OF FUNDS<br>WC | SOURCE OF FUNDS<br>WC |
| 5 | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)  | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)  | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)  | ☐ |
| 6 | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | SOLE VOTING POWER<br>0 | SOLE VOTING POWER<br>0 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | SHARED VOTING POWER<br>25,210,000 | SHARED VOTING POWER<br>25,210,000 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 9 | SOLE DISPOSITIVE POWER<br>0 | SOLE DISPOSITIVE POWER<br>0 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 10 | SHARED DISPOSITIVE POWER<br>25,210,000 | SHARED DISPOSITIVE POWER<br>25,210,000 |
| 11 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>25,210,000 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>25,210,000 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>25,210,000 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>25,210,000 |
| 12 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: | ☐ |
| 13 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>6.22% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>6.22% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>6.22% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>6.22% |
| 14 | TYPE OF REPORTING PERSON<br>PN | TYPE OF REPORTING PERSON<br>PN | TYPE OF REPORTING PERSON<br>PN | TYPE OF REPORTING PERSON<br>PN |

---

------

CUSIP No. 023111206 SCHEDULE 13D Page 3 of 8 Pages

---

| | | | | |
|:---|:---|:---|:---|:---|
| 1 | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Alexander J. Denner, Ph.D. | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Alexander J. Denner, Ph.D. | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Alexander J. Denner, Ph.D. | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Alexander J. Denner, Ph.D. |
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP | <br> (a) ☐ <br>(b) ☐ <br>|
| 3 | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY |
| 4 | SOURCE OF FUNDS<br>AF | SOURCE OF FUNDS<br>AF | SOURCE OF FUNDS<br>AF | SOURCE OF FUNDS<br>AF |
| 5 | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) | ☐ |
| 6 | CITIZENSHIP OR PLACE OF ORGANIZATION<br>United States | CITIZENSHIP OR PLACE OF ORGANIZATION<br>United States | CITIZENSHIP OR PLACE OF ORGANIZATION<br>United States | CITIZENSHIP OR PLACE OF ORGANIZATION<br>United States |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | SOLE VOTING POWER<br>0 | SOLE VOTING POWER<br>0 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | SHARED VOTING POWER<br>25,210,000 | SHARED VOTING POWER<br>25,210,000 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 9 | SOLE DISPOSITIVE POWER<br>0 | SOLE DISPOSITIVE POWER<br>0 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 10 | SHARED DISPOSITIVE POWER<br>25,210,000 | SHARED DISPOSITIVE POWER<br>25,210,000 |
| 11 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>25,210,000 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>25,210,000 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>25,210,000 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>25,210,000 |
| 12 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: | ☐ |
| 13 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>6.22% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>6.22% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>6.22% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>6.22% |
| 14 | TYPE OF REPORTING PERSON<br>IN | TYPE OF REPORTING PERSON<br>IN | TYPE OF REPORTING PERSON<br>IN | TYPE OF REPORTING PERSON<br>IN |

---

------

CUSIP No. 023111206 SCHEDULE 13D Page 4 of 8 Pages

---

| | | | | |
|:---|:---|:---|:---|:---|
| 1 | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Louis Sterling III | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Louis Sterling III | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Louis Sterling III | NAME OF REPORTING PERSON OR<br> I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<br>Louis Sterling III |
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP | <br> (a) ☐ <br>(b) ☐ <br>|
| 3 | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY |
| 4 | SOURCE OF FUNDS<br>PF | SOURCE OF FUNDS<br>PF | SOURCE OF FUNDS<br>PF | SOURCE OF FUNDS<br>PF |
| 5 | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) | ☐ |
| 6 | CITIZENSHIP OR PLACE OF ORGANIZATION<br>United States | CITIZENSHIP OR PLACE OF ORGANIZATION<br>United States | CITIZENSHIP OR PLACE OF ORGANIZATION<br>United States | CITIZENSHIP OR PLACE OF ORGANIZATION<br>United States |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | SOLE VOTING POWER<br>69,772 | SOLE VOTING POWER<br>69,772 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | SHARED VOTING POWER<br>0 | SHARED VOTING POWER<br>0 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 9 | SOLE DISPOSITIVE POWER<br>69,772 | SOLE DISPOSITIVE POWER<br>69,772 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 10 | SHARED DISPOSITIVE POWER<br>0 | SHARED DISPOSITIVE POWER<br>0 |
| 11 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>69,772 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>69,772 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>69,772 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>69,772 |
| 12 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: | ☐ |
| 13 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>Less than 1% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>Less than 1% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>Less than 1% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<br>Less than 1% |
| 14 | TYPE OF REPORTING PERSON<br>IN | TYPE OF REPORTING PERSON<br>IN | TYPE OF REPORTING PERSON<br>IN | TYPE OF REPORTING PERSON<br>IN |

---

------

CUSIP No. 023111206 SCHEDULE 13D <br> Page 5 of 8 Pages

This Amendment No. 6 to Schedule 13D ("Amendment No. 6") relates to American Depositary Shares ("ADS(s)"), each ADS representing one ordinary share, par value 50 pence per share (the "Ordinary Shares"), issued by Amarin Corporation plc, a company incorporated under the laws of England and Wales (the "Issuer"), and amends the initial statement on Schedule 13D filed with the Securities and Exchange Commission (the "SEC") on January 24, 2022 (the "Initial Schedule 13D"), as amended by Amendment No. 1 to Schedule 13D filed on June 3, 2022, Amendment No. 2 to Schedule 13D filed on June 16, 2022, Amendment No. 3 to Schedule 13D filed on October 11, 2022, Amendment No. 4 to Schedule 13D filed on January 11, 2023 and Amendment No. 5 to Schedule 13D filed on January 19, 2023 (the Initial Schedule 13D as so amended, the "Schedule 13D"). All capitalized terms contained herein but not otherwise defined shall have the meanings ascribed to such terms in the Schedule 13D.

This Amendment No. 6 is being filed to amend Item 4, Item 5(a) and (b), Item 6 and Item 7 as follows:

**Item 4. Purpose of Transaction.** Item 4 of the Schedule 13D is hereby amended to include the following:

On February 7, 2023, Sarissa Capital issued the press release attached as Exhibit 9 hereto.

**Item 5. Interest in Securities of the Issuer.** Item 5(a) and (b) of the Schedule 13D are hereby amended and restated as follows:<br>

(a) The Sarissa Reporting Persons may be deemed to beneficially own, in the aggregate, 25,210,000 Shares representing approximately 6.22% of the outstanding Shares (the "Sarissa Shares"). Mr. Sterling may be deemed to beneficially own, in the aggregate, 69,772 Shares representing approximately 0.02% of the outstanding Shares (the "Sterling Shares"), including call options representing 5,500 Shares (as further described in Item 6). Percentages of the outstanding Shares are based upon the 405,209,963 Shares outstanding as of October 21, 2022, including 384,708,057 ADSs, and 20,501,906 Ordinary Shares, as set forth in Schedule 14A of the Issuer filed with the SEC on January 31, 2023.

<br> (b) For purposes of this Schedule 13D:

All of the Shares which the Sarissa Reporting Persons may be deemed to beneficially own are held directly by the Sarissa Funds. Sarissa Capital, as the investment advisor to the Sarissa Funds, may be deemed to have the shared power to vote or direct the vote of (and the shared power to dispose or direct the disposition of) the Shares held directly by the Sarissa Funds. By virtue of his position as the Chief Investment Officer of Sarissa Capital and by virtue of his control of the ultimate general partner of Sarissa Capital, Dr. Denner may be deemed to have the shared power to vote or direct the vote of (and the shared power to dispose or direct the disposition of) the Shares held directly by the Sarissa Funds.

Mr. Sterling has sole power to vote and dispose the Sterling Shares.

The Sarissa Reporting Persons and Mr. Sterling may be deemed to have formed a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934, as amended, and may be deemed to beneficially own, in the aggregate, 25,279,772 Shares representing approximately 6.24% of the outstanding Shares. The Sarissa Reporting Persons disclaim beneficial ownership of the Sterling Shares. Mr. Sterling disclaims beneficial ownership of the Sarissa Shares.

------

CUSIP No. 023111206 SCHEDULE 13D <br> Page 6 of 8 Pages

**** 

<br> **Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer.** Item 6 of the Schedule 13D is hereby amended to include the following:

*Derivative Transactions*

On January 20, 2023, call options held by Mr. Sterling representing 48,000 Shares expired pursuant to their terms. As a result, as of February 7, 2023, Mr. Sterling may be deemed to beneficially own call options representing 5,500 Shares, which Shares are reflected in the amounts reported in Item 5.

**Item 7. Material to Be Filed as Exhibits.** Item 7 of the Schedule 13D is hereby amended to include the following:

Exhibit 9 – Press Release, February 7, 2023

------

**CUSIP No. 023111206 SCHEDULE 13D Page 7 of 8 Pages**

#### <br>

#### SIGNATURE

#### <br>
After reasonable inquiry and to the best of my knowledge and belief, the undersigned certifies that the information set forth in this statement is true, complete and correct.

---

| | |
|:---|:---|
| Dated: February 8, 2023 | Dated: February 8, 2023 |
| SARISSA CAPITAL MANAGEMENT LP | SARISSA CAPITAL MANAGEMENT LP |
| By: | /s/ Mark DiPaolo |
|  | Name: Mark DiPaolo |
|  | Title: Senior Partner, General Counsel |

---

---

| |
|:---|
| /s/ Alexander J. Denner |
| Alexander J. Denner |

---

---

| |
|:---|
| /s/ Louis Sterling III |
| Louis Sterling III |

---

------

**CUSIP No. 023111206 SCHEDULE 13D <br> Page 8 of 8 Pages**

#### INDEX TO EXHIBITS

[Exhibit 1](https://www.sec.gov/Archives/edgar/data/897448/000089914022000088/s49762134b.htm) – Joint Filing Agreement of the Reporting Persons\*

[Exhibit 2](https://www.sec.gov/Archives/edgar/data/897448/000089914022000563/53826129b.htm) – Press Release, June 15, 2022\*

[Exhibit 3](https://www.sec.gov/Archives/edgar/data/897448/000119312522260662/d399645dex3.htm) – Press Release, October 11, 2022\*

[Exhibit 4](https://www.sec.gov/Archives/edgar/data/897448/000089914023000032/s58919650b.htm) – Requisition Notice, January 10, 2023\*

[Exhibit 5](https://www.sec.gov/Archives/edgar/data/897448/000089914023000032/s58919650c.htm) – Press Release, January 10, 2023\*

[Exhibit 6](https://www.sec.gov/Archives/edgar/data/897448/000089914023000032/s58919650d.htm) – Joint Filing Agreement of the Reporting Persons\*

[Exhibit 7](https://www.sec.gov/Archives/edgar/data/897448/000089914023000032/s58919650e.htm) – Power of Attorney Granted by Louis Sterling III in favor of Mark DiPaolo and Patrice Bonfiglio, January 10, 2023\*

[Exhibit 8](https://www.sec.gov/Archives/edgar/data/897448/000114036123002125/ny20006859x3_ex-8.htm) – Press Release, January 18, 2023\*

[Exhibit 9](ny20006859x11_ex9.htm) – Press Release, February 7, 2023

\* Previously filed.

------

## Exhibit 99.9

------

**EXHIBIT 9**

*SARISSA CAPITAL HIGHLIGHTS AMARIN'S*

 *INACCURATE AND MISLEADING STATEMENTS*

*Sarissa urges all shareholders to vote the **BLUE** proxy card for needed change at Amarin*

*on or prior to February 21, 2023*

*Do **NOT** vote Amarin's WHITE proxy card*

Greenwich, CT, February 7, 2023 – Sarissa Capital Management LP ("Sarissa") today made the following statement on Amarin Corporation plc (NASDAQ: AMRN):

Sarissa today released a presentation highlighting many of the inaccurate and misleading statements Amarin made in its attempts to thwart shareholder representation and oversight on the board. For Sarissa's presentation, please click on the link below.

**Presentation:** <u>https://freeamarin.com/wp-content/pdfs/presentation-slides-020723.pdf</u>

Visit our website at <u>www.freeamarin.com</u><u> </u>for helpful information about Sarissa and the need for change at Amarin.

Vote the **BLUE** proxy card "**FOR**" the Sarissa Nominees and "**FOR**" the removal of Chairman Per Wold-Olsen from the board.

The General Meeting of Amarin shareholders is scheduled for February 28, 2023, BUT TO MAKE SURE YOUR VOTE COUNTS, **<u>SUBMIT YOUR VOTE ON OR BEFORE TUESDAY, FEBRUARY 21, 2023</u>**.

Shareholders should be receiving the **BLUE** proxy card this week. If you do not receive your **BLUE** proxy card this week or have any questions on how to vote, please contact:

D.F. King & Co., Inc.

48 Wall Street

New York, New York 10005

**Shareholders call toll-free:** (800) 331-7024

**Banks and Brokers call:** (212) 269-5550

**By Email:** <u>AMRN@dfking.com</u>

#FreeAmarin

Contact: Jean Puong<br> Sarissa Capital Management LP<br> <u>info@sarissacap.com</u>

#### Additional Information

#### <br>
Sarissa Capital Management LP ("Sarissa Capital"), together with other participants, filed a definitive proxy statement and an accompanying blue proxy card with the SEC on January 31, 2023, in connection with the solicitation of shareholders of Amarin Corporation plc (the "Company") at the general meeting of the Company for the election of Sarissa Capital's slate of highly-qualified nominees (the "General Meeting"). Shareholders are advised to read the definitive proxy statement and other relevant documents related to the General Meeting as they contain important information.

The definitive proxy statement and other relevant documents are available at no charge on the SEC's website at <u>www.sec.gov</u> and at <u>www.freeamarin.com</u>. The definitive proxy statement and other relevant documents are also available at no charge by directing a request to Sarissa Capital's proxy solicitor, D.F. King & Co., Inc., 48 Wall Street, New York, New York 10005 (Shareholders can call toll-free: (800) 331-7024).

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