UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR Commission file number: 001-38015 SIGMA LABS, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) 3900 Paseo del Sol Santa Fe, NM 87507 (Address of principal executive offices) (505) 438-2576 (Registrant's tel ...