Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended: September 30, 2023 ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission file number: 001-08443 TELOS CORPORATION (Exact name of registrant as specified in its charter) Maryland 52-0880974 (State or other jurisdiction of incorporation or orga ...