AMARIN CORP PLC\UK — Director's Dealing 2021

Aug 13, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMARIN CORP PLC\UK (AMRN)
CIK: 0000897448
Period of Report: 2021-08-12

Reporting Person: Kalb Michael Wayne (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-08-12	Ordinary Shares	M	95000.00	$2.19	Acquired	300010.00	Direct
2021-08-12	Ordinary Shares	M	25000.00	$2.95	Acquired	325010.00	Direct
2021-08-12	Ordinary Shares	S	120000.00	$5.252	Disposed	205010.00	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-08-12	Stock Option (Right to Buy)	$2.19	M	95000.00	Disposed	2026-07-01	Ordinary Shares (95000.00)	Direct
2021-08-12	Stock Option (Right to Buy)	$2.95	M	25000.00	Disposed	2027-01-31	Ordinary Shares (25000.00)	Direct

Footnotes

F1: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person.

F2: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F3: On July 1, 2016, the Reporting Person was granted an option to purchase 625,000 Ordinary Shares under the Amarin Corporation plc 2011 Stock Incentive Plan (the "Plan"). The shares subject to this option vested and became exercisable as follows: 25% of the total number of underlying shares vested on July 1, 2017, and the remaining 75% of the underlying shares vested ratably over the subsequent 36 months. This option was fully vested as of the date hereof.

F4: On February 1, 2017, the Reporting Person was granted an option to purchase 133,000 Ordinary Shares under the Plan. The shares subject to this option vested and became exercisable in 48 equal monthly installments on the last day of each month starting on February 28, 2017. This option was fully vested as of the date hereof.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.25 to $5.30, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

F6: Please see the section titled "Remarks" below for additional information.