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, 2018 Commission file number 1-12672 AVALONBAY COMMUNITIES, INC. (Exact name of registrant as specified in its charter) Maryland 77-0404318 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) Ballston Tower 671 N. Glebe Rd, Suite 800 Arlington, Virginia 22203 ...