EXHIBIT 31.4

CERTIFICATION

I, Michael W. Kalb, certify that:

1. I have reviewed this Amendment No. 1 to Annual Report on Form 10-K of Amarin Corporation plc; and

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

Date: May 2, 2022	/s/ Michael W. Kalb
	Michael W. Kalb
	Senior Vice President and Chief Financial Officer
	(Principal Financial Officer and Principal Accounting Officer)