UNITED STATES SECURITIES AND EXCHANGE COMMISSION FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 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 001-38910 TECTONIC FINANCIAL, INC. Washington, D.C. 20549 (Exact name of registrant as specified in its charter) Securities registered pursuant to Section 12(b) o ...