UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Blackbaud, Inc. (Exact name of registrant as specified in its charter) FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 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: 000-50600 Delaware 11-2617163 (State or other jurisdiction of incorpo ...