Acasti Pharma Announces Rights Offering and Grants Options, Neptune Technologies & Bioressources Declares Dividend of Acasti Rights

Acasti Pharma NEPT announces that it will issue to the holders of its outstanding Class A Shares of record at the close of business on July 5, 2011 transferable rights to subscribe for Class A Shares on the terms set forth in a Rights Offering Circular. Rights will be evidenced by transferable rights certificates. Each registered holder of Class A Shares on the Record Date will receive one Right for each Class A Share held. Ten (10) Rights plus the sum of $1.25 are required to subscribe for one Class A Share. The Rights expire at 4:00 p.m. (Montreal time) on October 6, 2011 (the "Rights Expiry Date"), after which time unexcercised Rights will be void and of no value. The Rights Offering Circular will be mailed by Acasti to its registered shareholders on July 8, 2011 and will be available on the SEDAR website at www.sedar.com.