UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 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, 2023 ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to . 001-35542 (Commission File number) (Exact name of registrant as specified in its charter) Customers Bancorp, Inc. Pennsylvania 27-2290659 (State or other jurisdiction ...