AVB 10-K 12/31/2013

Section 1: 10-K (10-K)
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2013 Commission file number 1-12672

AVALONBAY COMMUNITIES, INC.
(Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation or organization) 77-0404318 (I.R.S. Employer Identification No.)

Ballston Tower 671 N. Glebe Rd, Suite 800 Arlington, Virginia 22203 (Address of principal executive office) (703) 329-6300 (Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:
(Title of each class) (Name of each exchange on which registered)

Common Stock, par value $.01 per share

New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ý No o Yes o No ý

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding twelve (12) months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ý No o Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the