UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K (Mark One) Commission file number: 001-32991 WASHINGTON TRUST BANCORP, INC. (Exact name of registrant as specified in its charter) Rhode Island 05-0404671 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 23 Broad Street, Westerly, Rhode Island 02891 (Address of principal executive offices) (Zip Code) (401) 348-1200 (Registrant's telephone number, including area code) Securities ...