Amarin Corporation announces the pricing of an underwritten public offering

MYSTIC, Conn. and DUBLIN, Jan. 6, 2011 /PRNewswire/ -- Amarin Corporation plc (Nasdaq:AMRN - News) (the "Company"), a clinical-stage biopharmaceutical company with a focus on cardiovascular disease, today announced the pricing of an underwritten public offering of 12,000,000 American Depositary Shares ("ADSs") at a price to the public of $7.60 per ADS. The net proceeds to the Company from this offering are expected to be approximately $87.1 million, after deducting underwriting discounts and commissions and other estimated offering expenses. The offering is expected to close on or about January 11, 2011, subject to customary closing conditions.

Jefferies & Company, Inc. and Leerink Swann LLC are acting as joint book-running managers in the offering, and Canaccord Genuity Inc. is acting as co-lead manager for the offering. Amarin has granted the underwriters a 30-day option to purchase up to an aggregate of 1,800,000 additional ADSs solely to cover over-allotments, if any. Amarin anticipates using the net proceeds from the offering to prepare for the commercialization of AMR101, its filing of a New Drug Application and for working capital and general corporate purposes.

The securities described above are being offered by Amarin pursuant to a shelf registration statement previously filed with and declared effective by the Securities and Exchange Commission (the "SEC") on November 23, 2010. A preliminary prospectus supplement related to the offering has been filed with the SEC and is available on the SEC's website at http://www.sec.gov. Copies of the final prospectus supplement relating to these securities may be obtained from Equity Syndicate Prospectus Department, Jefferies & Company, Inc., 520 Madison Avenue, 12th Floor, New York, NY, 10022, at 877-547-6340, and at Prospectus_Department@Jefferies.com. This news release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or other jurisdiction.