8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The

Securities Exchange Act of 1934

Date of Report (Date of Earliest Event Reported): January 24, 2012

American Assets Trust, Inc.

(Exact name of registrant as specified in its charter)

Maryland	001-35030	27-3338708
(State or other jurisdiction of incorporation)	(Commission File No.)	(I.R.S. Employer Identification No.)
11455 El Camino Real, Suite 200 San Diego, California 92130		92130
(Address of principal executive offices)		(Zip Code)

(858) 350-2600

Registrant’s telephone number, including area code:

Not Applicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01 Regulation FD Disclosure.

On January 24, 2012, American Assets Trust, Inc. (the “Company”) issued a press release announcing the acquisition of “One Beach Street” in San Francisco, California. A copy of the press release is attached hereto as Exhibit 99.1. The information contained in Item 7.01 of this Current Report, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for any purposes, including for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number	Exhibit Description
99.1*	Press Release issued by American Assets Trust, Inc. on January 24, 2012.

* Furnished herewith.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

American Assets Trust, Inc.
By:	/s/    Adam Wyll
Adam Wyll
Senior Vice President, General Counsel and Secretary

January 24, 2012

EXHIBIT INDEX

Exhibit Number	Exhibit Description
99.1	Press Release issued by American Assets Trust, Inc. on January 24, 2012.

EX-99.1

Exhibit 99.1

American Assets Trust, Inc. Acquires “One Beach Street” Office Building in San Francisco

Company Release - January 24, 2012

SAN DIEGO -American Assets Trust, Inc. (NYSE:AAT) (the “Company”) has completed the acquisition of “One Beach Street,” a 3-story, approximately 97,000 square foot renovated historic office building located along the Embarcadero in San Francisco’s North Waterfront District. The purchase price was approximately $36.5 million, which was paid with cash on hand.

One Beach Street’s location provides tenants on each floor with stunning views of the San Francisco Bay, Alcatraz and the boat marina at Pier 39, and is within walking distance to numerous restaurants, shops and entertainment. One Beach Street offers tenants convenient regional access via the Embarcadero to nearby Interstate 80 and U.S. Highway 101 and numerous public transportation options. One Beach Street is 100% leased to three widely recognized tenants.

One Beach Street is the Company’s third office building in the San Francisco market. “We are proud to add One Beach Street to our portfolio of first-class, irreplaceable San Francisco properties, including The Landmark at One Market and 160 King Street,” said John W. Chamberlain, the Company’s President and Chief Executive Officer.

About American Assets Trust, Inc.

American Assets Trust, Inc. is a full service, vertically integrated and self-administered real estate investment trust, or REIT, that owns, operates, acquires and develops high quality retail and office properties in attractive, high-barrier-to-entry markets primarily in Southern California, Northern California, Oregon and Hawaii. The Company was formed to succeed to the real estate business of American Assets, Inc., a privately held corporation founded in 1967 and, as such, has significant experience, long-standing relationships and extensive knowledge of its core markets, submarkets and asset classes. The Company’s retail portfolio comprises approximately 3.0 million rentable square feet, and its office portfolio comprises approximately 2.3 million square feet. In addition the Company owns one mixed-use property (including approximately 97,000 rentable square feet of retail space and a 369-room all-suite hotel) and over 900 multifamily units. The Company has elected, or will elect, to be taxed and intends to operate in a manner that will allow it to qualify as a real estate investment trust, or REIT, for federal income tax purposes. For additional information, visit www.americanassetstrust.com.

Forward Looking Statements

This press release may contain forward-looking statements within the meaning of the federal securities laws, which are based on current expectations, forecasts and assumptions that involve risks and uncertainties that could cause actual outcomes and results to differ materially. Forward-looking statements relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts. In some cases, you can identify forward-looking statements by the use of forward-looking terminology such as “may,” “will,” “should,” “expects,” “intends,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” or “potential” or the negative of these words and phrases or similar words or phrases which are predictions of or indicate future events or trends and which do not relate solely to historical matters. While forward-looking statements reflect the Company’s good faith beliefs, assumptions and expectations, they are not guarantees of future performance. For a further discussion of these and other factors that could cause the Company’s future results to differ materially from any forward-looking statements, see the section entitled “Risk Factors” in the Company’s annual report on Form 10-K filed on March 30, 2011 and other risks described in documents subsequently filed by the Company from time to time with the Securities and Exchange Commission. The Company disclaims any obligation to publicly update or revise any forward-looking statement to reflect changes in underlying assumptions or factors, of new information, data or methods, future events or other changes.

Source: American Assets Trust, Inc.

Investor and Media Contact:

American Assets Trust

Robert F. Barton

Executive Vice President and Chief Financial Officer

858-350-2607