NEW YORK, July 24, 2018 (GLOBE NEWSWIRE) -- The following statement is being issued by Levi & Korsinsky, LLP:Levi & Korsinsky, LLP announces that investigations have commenced on behalf of shareholders of the following publicly-traded companies.GulfMark Offshore, Inc. (NYSE:GLF)Merger Announcement: July 16, 2018Transaction Details: GulfMark will be purchased by Tidewater, Inc. (NYSE:TDW) for 1.100 shares of Tidewater common per GulfMark share, representing approximately $33.68 per share. ...Full story available on Benzinga.com