AMRN

SEC source: 0001562180-22-001245 · primarydocument.xml · derivative · entry 2

Marks Jason M. · CIK 0001878953 · Sr. VP and Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,700

Underlying: Ordinary Shares · 103,700 shares

Expires not disclosed

F3 · security: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F4 · derivative.exercise_date: On February 4, 2022, the Reporting Person was granted 103,700 RSUs under the 2020 Plan. These RSUs vest in three equal installments on each of January 31, 2023, January 31, 2024 and January 31, 2025.

F5 · derivative.expiration_date: Not applicable.

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

SEC source: 0001562180-22-001245 · primarydocument.xml · derivative · entry 1

Marks Jason M. · CIK 0001878953 · Sr. VP and Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,700

Underlying: Ordinary Shares · 131,700 shares

Expires 2032-02-04

F1 · derivative.exercise_date: On February 4, 2022, the Reporting Person was granted an option to purchase 131,700 Ordinary Shares under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). The shares subject to this option shall vest and become exercisable over four years, with 25% to vest on the first anniversary of the grant date and the balance to vest ratably over the subsequent 12 calendar quarters on the last day of each April, July, October and January.

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

SEC source: 0001562180-22-001246 · primarydocument.xml · derivative · entry 2

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,700

Underlying: Ordinary Shares · 103,700 shares

Expires not disclosed

F3 · security: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F4 · derivative.exercise_date: On February 4, 2022, the Reporting Person was granted 103,700 RSUs under the 2020 Plan. These RSUs vest in three equal installments on each of January 31, 2023, January 31, 2024 and January 31, 2025.

F5 · derivative.expiration_date: Not applicable.

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

SEC source: 0001562180-22-001246 · primarydocument.xml · derivative · entry 1

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,700

Underlying: Ordinary Shares · 131,700 shares

Expires 2032-02-04

F1 · derivative.exercise_date: On February 4, 2022, the Reporting Person was granted an option to purchase 131,700 Ordinary Shares under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). The shares subject to this option shall vest and become exercisable over four years, with 25% to vest on the first anniversary of the grant date and the balance to vest ratably over the subsequent 12 calendar quarters on the last day of each April, July, October and January.

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

SEC source: 0001562180-22-001244 · primarydocument.xml · derivative · entry 2

Mikhail Karim · CIK 0001875266 · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 623,100

Underlying: Ordinary Shares · 623,100 shares

Expires not disclosed

F3 · security: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F4 · derivative.exercise_date: On February 4, 2022, the Reporting Person was granted 623,100 RSUs under the 2020 Plan. These RSUs vest in three equal installments on each of January 31, 2023, January 31, 2024 and January 31, 2025.

F5 · derivative.expiration_date: Not applicable.

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

SEC source: 0001562180-22-001244 · primarydocument.xml · derivative · entry 1

Mikhail Karim · CIK 0001875266 · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 791,300

Underlying: Ordinary Shares · 791,300 shares

Expires 2032-02-04

F1 · derivative.exercise_date: On February 4, 2022, the Reporting Person was granted an option to purchase 791,300 Ordinary Shares under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). The shares subject to this option shall vest and become exercisable over four years, with 25% to vest on the first anniversary of the grant date and the balance to vest ratably over the subsequent 12 calendar quarters on the last day of each April, July, October and January.

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

SEC source: 0001562180-22-000984 · primarydocument.xml · derivative · entry 2

Berg Aaron · CIK 0001770259 · EVP, President US

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 12,733 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: On February 1, 2019, the Reporting Person was granted 38,200 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan. These RSUs vest in three equal installments on each of January 31, 2020, January 31, 2021 and January 31, 2022. The third and final vesting event occurred on January 31, 2022.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-22-000984 · primarydocument.xml · nonDerivative · entry 1

Berg Aaron · CIK 0001770259 · EVP, President US

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 375,751

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: On February 1, 2019, the Reporting Person was granted 38,200 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan. These RSUs vest in three equal installments on each of January 31, 2020, January 31, 2021 and January 31, 2022. The third and final vesting event occurred on January 31, 2022.

F3 · price: Not applicable.

SEC source: 0001562180-22-000983 · primarydocument.xml · derivative · entry 3

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 12,733 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: On February 1, 2019, the Reporting Person was granted 38,200 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan. These RSUs vest in three equal installments on each of January 31, 2020, January 31, 2021 and January 31, 2022. The third and final vesting event occurred on January 31, 2022.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-22-000983 · primarydocument.xml · nonDerivative · entry 2

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 240,627

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F4 · kind: Represents withholding by the Issuer of shares in respect of tax liability incident to the vesting of a security issued in accordance with Rule 16b-3, and not a market sale of securities.

F5 · balance_after: Please see the section titled "Remarks" below for additional information.

SEC source: 0001562180-22-000983 · primarydocument.xml · nonDerivative · entry 1

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 245,944

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: On February 1, 2019, the Reporting Person was granted 38,200 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan. These RSUs vest in three equal installments on each of January 31, 2020, January 31, 2021 and January 31, 2022. The third and final vesting event occurred on January 31, 2022.

F3 · price: Not applicable.

SEC source: 0001562180-22-000982 · primarydocument.xml · derivative · entry 3

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 12,733 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: On February 1, 2019, the Reporting Person was granted 38,200 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan. These RSUs vest in three equal installments on each of January 31, 2020, January 31, 2021 and January 31, 2022. The third and final vesting event occurred on January 31, 2022.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-22-000982 · primarydocument.xml · nonDerivative · entry 2

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 486,087

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F4 · kind: Represents withholding by the Issuer of shares in respect of tax liability incident to the vesting of a security issued in accordance with Rule 16b-3, and not a market sale of securities.

F5 · balance_after: Please see the section titled "Remarks" below for additional information.

SEC source: 0001562180-22-000982 · primarydocument.xml · nonDerivative · entry 1

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 491,208

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: On February 1, 2019, the Reporting Person was granted 38,200 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan. These RSUs vest in three equal installments on each of January 31, 2020, January 31, 2021 and January 31, 2022. The third and final vesting event occurred on January 31, 2022.

F3 · price: Not applicable.

SEC source: 0001562180-22-000467 · primarydocument.xml · derivative · entry 2

WOLD OLSEN PER · CIK 0001181185 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81,082

Underlying: Ordinary Shares · 81,082 shares

Expires not disclosed

F3 · security: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F4 · derivative.exercise_date: On January 10, 2022, the Reporting Person was granted 81,082 RSUs under the Plan. The RSUs vest in equal annual installments over a three-year period, with each installment vesting upon the anniversary of the grant date of January 10, 2022.

F5 · derivative.expiration_date: Not applicable.

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

SEC source: 0001562180-22-000467 · primarydocument.xml · derivative · entry 1

WOLD OLSEN PER · CIK 0001181185 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,569

Underlying: Ordinary Shares · 103,569 shares

Expires 2032-01-10

F1 · derivative.exercise_date: On January 10, 2022, the Reporting Person was granted an option to purchase 103,569 Ordinary Shares under the Amarin Corporation plc 2020 Stock Incentive Plan (the "Plan"). The option shall vest and become exercisable in a single annual installment upon the one-year anniversary of the grant date of January 10, 2022.

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

SEC source: 0001562180-22-000171 · primarydocument.xml · derivative · entry 3

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 95,533

Underlying: Ordinary Shares · 47,767 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: On January 4, 2021, the Reporting Person was granted 143,300 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). These RSUs vest in three equal installments on each of December 31, 2021, December 31, 2022 and December 31, 2023. The first vesting event occurred on December 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-22-000171 · primarydocument.xml · nonDerivative · entry 2

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 233,211

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F5 · kind: Represents withholding by the Issuer of shares in respect of tax liability incident to the vesting of a security issued in accordance with Rule 16b-3, and not a market sale of securities.

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

SEC source: 0001562180-22-000171 · primarydocument.xml · nonDerivative · entry 1

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 258,590

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: On January 4, 2021, the Reporting Person was granted 143,300 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). These RSUs vest in three equal installments on each of December 31, 2021, December 31, 2022 and December 31, 2023. The first vesting event occurred on December 31, 2021.

F3 · price: Not applicable.

F4 · balance_after: Includes 2,716 shares purchased under the Issuer's 2017 Employee Stock Purchase Plan on November 30, 2021.

SEC source: 0001562180-22-000172 · primarydocument.xml · derivative · entry 2

Berg Aaron · CIK 0001770259 · EVP, President US

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 95,533

Underlying: Ordinary Shares · 47,767 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: On January 4, 2021, the Reporting Person was granted 143,300 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). These RSUs vest in three equal installments on each of December 31, 2021, December 31, 2022 and December 31, 2023. The first vesting event occurred on December 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-22-000172 · primarydocument.xml · nonDerivative · entry 1

Berg Aaron · CIK 0001770259 · EVP, President US

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 363,018

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: On January 4, 2021, the Reporting Person was granted 143,300 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). These RSUs vest in three equal installments on each of December 31, 2021, December 31, 2022 and December 31, 2023. The first vesting event occurred on December 31, 2021.

F3 · price: Not applicable.

F4 · balance_after: Please see the section titled "Remarks" below for additional information.

SEC source: 0001562180-22-000169 · primarydocument.xml · derivative · entry 3

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 95,533

Underlying: Ordinary Shares · 47,767 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: On January 4, 2021, the Reporting Person was granted 143,300 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). These RSUs vest in three equal installments on each of December 31, 2021, December 31, 2022 and December 31, 2023. The first vesting event occurred on December 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-22-000169 · primarydocument.xml · nonDerivative · entry 2

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 478,475

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F4 · kind: Represents withholding by the Issuer of shares in respect of tax liability incident to the vesting of a security issued in accordance with Rule 16b-3, and not a market sale of securities.

F5 · balance_after: Please see the section titled "Remarks" below for additional information.

SEC source: 0001562180-22-000169 · primarydocument.xml · nonDerivative · entry 1

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 502,908

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: On January 4, 2021, the Reporting Person was granted 143,300 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). These RSUs vest in three equal installments on each of December 31, 2021, December 31, 2022 and December 31, 2023. The first vesting event occurred on December 31, 2021.

F3 · price: Not applicable.

SEC source: 0001562180-22-000166 · primarydocument.xml · derivative · entry 3

Mikhail Karim · CIK 0001875266 · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,733

Underlying: Ordinary Shares · 11,367 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: On January 4, 2021, the Reporting Person was granted 34,100 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). These RSUs vest in three equal installments on each of December 31, 2021, December 31, 2022 and December 31, 2023. The first vesting event occurred on December 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-22-000166 · primarydocument.xml · nonDerivative · entry 2

Mikhail Karim · CIK 0001875266 · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,031

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F4 · kind: Represents withholding by the Issuer of shares in respect of tax liability incident to the vesting of a security issued in accordance with Rule 16b-3, and not a market sale of securities.

F5 · balance_after: Please see the section titled "Remarks" below for additional information.

SEC source: 0001562180-22-000166 · primarydocument.xml · nonDerivative · entry 1

Mikhail Karim · CIK 0001875266 · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,907

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: On January 4, 2021, the Reporting Person was granted 34,100 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). These RSUs vest in three equal installments on each of December 31, 2021, December 31, 2022 and December 31, 2023. The first vesting event occurred on December 31, 2021.

F3 · price: Not applicable.

SEC source: 0001562180-21-007737 · primarydocument.xml · nonDerivative · entry 2

Zakrzewski Joseph S · CIK 0001331852 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 196,547

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · balance_after: Please see the section titled "Remarks" below for additional information.

SEC source: 0001562180-21-007737 · primarydocument.xml · nonDerivative · entry 1

Zakrzewski Joseph S · CIK 0001331852 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 194,547

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-21-005784 · primarydocument.xml · derivative · entry 2

Marks Jason M. · CIK 0001878953 · Sr. VP and Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Ordinary Shares · 100,000 shares

Expires not disclosed

F3 · security: Each restricted stock unit ("RSU") represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F4 · derivative.exercise_date: On September 1, 2021, the Reporting Person was granted 100,000 RSUs under the 2020 Plan. These RSUs vest in three equal installments on each of August 19, 2022, August 19, 2023 and August 19, 2024.

F5 · derivative.expiration_date: Not applicable.

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

SEC source: 0001562180-21-005784 · primarydocument.xml · derivative · entry 1

Marks Jason M. · CIK 0001878953 · Sr. VP and Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Ordinary Shares · 100,000 shares

Expires 2031-09-01

F1 · derivative.exercise_date: On September 1, 2021, the Reporting Person was granted an option to purchase 100,000 Ordinary Shares under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). The shares subject to this option shall vest and become exercisable over four years, with 25% to vest on August 19, 2022 and the balance to vest ratably over the subsequent 12 calendar quarters on the nineteenth (19th) day of each November, February, May and August.

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

SEC source: 0001562180-21-005782 · primarydocument.xml · derivative · entry 7

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 3,054 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-21-005782 · primarydocument.xml · derivative · entry 6

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 1,527 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-21-005782 · primarydocument.xml · derivative · entry 5

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 1,527 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-21-005782 · primarydocument.xml · nonDerivative · entry 4

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 208,107

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F4 · kind: Represents withholding by the Issuer of shares in respect of tax liability incident to the vesting of a security issued in accordance with Rule 16b-3, and not a market sale of securities.

F5 · balance_after: Please see the section titled "Remarks" below for additional information.

SEC source: 0001562180-21-005782 · primarydocument.xml · nonDerivative · entry 3

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 211,118

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · price: Not applicable.

SEC source: 0001562180-21-005782 · primarydocument.xml · nonDerivative · entry 2

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 208,064

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · price: Not applicable.

SEC source: 0001562180-21-005782 · primarydocument.xml · nonDerivative · entry 1

Kalb Michael Wayne · CIK 0001678248 · SVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 206,537

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · price: Not applicable.

SEC source: 0001562180-21-005783 · primarydocument.xml · derivative · entry 7

Berg Aaron · CIK 0001770259 · EVP, President US

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 3,054 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-21-005783 · primarydocument.xml · derivative · entry 6

Berg Aaron · CIK 0001770259 · EVP, President US

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 1,527 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-21-005783 · primarydocument.xml · derivative · entry 5

Berg Aaron · CIK 0001770259 · EVP, President US

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 1,527 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-21-005783 · primarydocument.xml · nonDerivative · entry 4

Berg Aaron · CIK 0001770259 · EVP, President US

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 315,251

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F4 · kind: Represents withholding by the Issuer of shares in respect of tax liability incident to the vesting of a security issued in accordance with Rule 16b-3, and not a market sale of securities.

F5 · balance_after: Please see the section titled "Remarks" below for additional information.

SEC source: 0001562180-21-005783 · primarydocument.xml · nonDerivative · entry 3

Berg Aaron · CIK 0001770259 · EVP, President US

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 318,262

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · price: Not applicable.

SEC source: 0001562180-21-005783 · primarydocument.xml · nonDerivative · entry 2

Berg Aaron · CIK 0001770259 · EVP, President US

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 315,208

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · price: Not applicable.

SEC source: 0001562180-21-005783 · primarydocument.xml · nonDerivative · entry 1

Berg Aaron · CIK 0001770259 · EVP, President US

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 313,681

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · price: Not applicable.

SEC source: 0001562180-21-005781 · primarydocument.xml · derivative · entry 7

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 3,054 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-21-005781 · primarydocument.xml · derivative · entry 6

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 1,527 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-21-005781 · primarydocument.xml · derivative · entry 5

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 1,527 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2 · derivative.exercise_date: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

SEC source: 0001562180-21-005781 · primarydocument.xml · nonDerivative · entry 4

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 455,141

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F4 · kind: Represents withholding by the Issuer of shares in respect of tax liability incident to the vesting of a security issued in accordance with Rule 16b-3, and not a market sale of securities.

F5 · balance_after: Please see the section titled "Remarks" below for additional information.

SEC source: 0001562180-21-005781 · primarydocument.xml · nonDerivative · entry 3

Ketchum Steven B · CIK 0001289884 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 458,268

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · kind: As previously reported on February 27, 2020 and March 1, 2021, on May 15, 2017, the Reporting Person was granted 220,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan, of which the performance criteria related to two tranches representing 25% of the total award each was deemed achieved on February 25, 2020 pursuant to reporting of audited net product revenues for 2019 exceeding $400 million and of which the performance criteria related to one tranche representing 50% of the total award was deemed achieved on February 25, 2021 pursuant to reporting of audited net product revenues for 2020 exceeding $500 million. The tranches vested ratably over 36 months beginning September 30, 2018 subject to achievement of the performance criteria and continued service of the Reporting Person as provided in the RSU Award Agreement between the Issuer and Reporting Person. The thirty-sixth and final vesting event occurred on August 31, 2021.

F3 · price: Not applicable.