UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2019 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from ___________ to ___________ Commission file number 001-35095 UNITED COMMUNITY BANKS, INC. (Exact name of registrant as specified in its charter) Georgia 58-1807304 (State ...

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 001-35095 UNITED COMMUNITY BANKS, INC. (Exact name of registrant as specified in its charter) Georgia 58-1807304 (State or other jurisdiction of incorporation or organization) 125 Highway 515 East, Blairsville, Georgia 30512 Address of Principal Executive Offices (Zip Code) Reg ...