Government Properties Income Trust Announces Underwriters Exercise Of Over-Allotment Option

NEWTON, Mass.--(BUSINESS WIRE)--Government Properties Income Trust (NYSE: GOV) today announced that the underwriters of its initial public offering have exercised, in full, their over-allotment option to purchase an additional 1,500,000 common shares of beneficial interest, raising additional net proceeds of approximately $28.1 million. The closing of the over-allotment option is expected to occur on June 30, 2009.

A registration statement relating to the offering of common shares of GOV discussed above was declared effective by the Securities and Exchange Commission on June 2, 2009. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities, in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

Merrill Lynch & Co., Wachovia Securities and Morgan Stanley acted as joint book running managers for the offering. Citi, Morgan Keegan & Company, Inc., RBC Capital Markets and UBS Investment Bank acted as joint lead managers. Copies of the prospectus can be obtained by contacting Merrill Lynch & Co., Attention: Prospectus Department, 4 World Financial Center, New York, NY 10080, telephone (212) 449-1000, Wachovia Securities, Attention: Equity Syndicate Department, 375 Park Avenue, New York, NY at (800) 326-5897 or email to equity-syndicate@wachovia.com, Morgan Stanley, 180 Varick Street, 2^nd floor, New York, NY 10014, attention: Prospectus Department, toll free (866) 718-1649, or by email at prospectus@morganstanley.com or by contacting any of the other underwriters listed above.

WARNING REGARDING FORWARD LOOKING STATEMENTS

THIS PRESS RELEASE CONTAINS FORWARD LOOKING STATEMENTS WITHIN THE MEANING OF THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995 AND OTHER FEDERAL SECURITIES LAWS. THESE FORWARD LOOKING STATEMENTS ARE BASED UPON GOV’S PRESENT EXPECTATIONS, BUT THESE STATEMENTS ARE NOT GUARANTEED TO OCCUR. FOR EXAMPLE: THE FACT THAT THE UNDERWRITES HAVE EXERCISED THEIR OPTION TO PURCHASE 1,500,000 SHARES MAY IMPLY THAT THE CLOSING OF THIS SALE OF SHARES WILL OCCUR; BUT THE CLOSING IS SUBJECT TO CONDITIONS CUSTOMARY IN TRANSACTIONS OF THIS TYPE AND MAY BE DELAYED OR MAY NOT OCCUR AT ALL. INVESTORS SHOULD NOT PLACE UNDUE RELIANCE UPON FORWARD LOOKING STATEMENTS.

A Maryland Real Estate Investment Trust with transferable shares of beneficial interest listed on the New York Stock Exchange.
No shareholder, Trustee or officer is personally liable for any act or obligation of the Trust.

Timothy A. Bonang, 617-219-1440
Director of Investor Relations
or
Katherine L. Johnston, 617-219-1440
Manager of Investor Relations