BETHESDA, Md., Feb. 11, 2013 /PRNewswire/ -- American Capital Mortgage Investment Corp. (Nasdaq: MTGE) ("MTGE" or the "Company") announced today that it plans to make a public offering of 18,000,000 shares of its common stock. In connection with the offering, the Company intends to grant the underwriters an option for 30 days to purchase up to an additional 2,700,000 shares of common stock. MTGE expects to use the net proceeds from this offering to invest, as market conditions warrant, in its targeted assets, which include agency mortgage investments, non-agency mortgage investments and other mortgage-related investments.Barclays, Citigroup, Credit Suisse Securities ( USA) LLC, Morgan Stanley and Wells Fargo Securities are joint book-running managers for the offering. JMP Securities LLC and Keefe, Bruyette & Woods, Inc. are the co-lead managers for the offering. Maxim Group LLC and Wunderlich Securities are the co-managers for the offering.The offering will be made pursuant to MTGE's existing effective registration statement, previously filed with the Securities and Exchange Commission. The offering of these securities will be made only by means of a prospectus. Copies of the prospectus may be obtained from Barclays Capital Inc., c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York 11717, telephone: (888) 603-5847, email: Barclaysprospectus@broadridge.com; Citigroup, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, telephone: (800) 831-9146; Credit Suisse Securities ( USA) LLC, Attention: Prospectus Department, One Madison Avenue, New York, NY 10010, telephone: (800) 221-1037; Morgan Stanley & Co., LLC, Attn: Prospectus Department, 180 Varick Street, 2nd Floor, New York, NY 10014-4606, telephone: (866) 718-1649, email: firstname.lastname@example.org; or Wells Fargo Securities, LLC, Attention: Equity Syndicate Dept., 375 Park Avenue, New York, New York 10152, telephone: (800) 326-5897, email: email@example.com. This press release does not constitute an offer to sell or the solicitation of an offer to buy shares of common stock, nor shall there be any sale of these securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.