 SANTA FE, NM ACCESSWIRE January 12, 2021 Sigma Labs, Inc. NASDAQ:SGLB Sigma Labs or the Company, a leading developer of quality assurance software for the commercial metal 3D printing industry, today announced the closing of its previously announced underwritten public offering of 1,488,507 shares of common stock at a public offering price of 3.00 per share. In connection with the offering, the underwriter exercised in full its over-allotment option to purchase an additional 223,276 shares of common stock at the public offering price, less the underwriting discount. 