 SANTA FE, NM ACCESSWIRE March 25, 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 that it has entered into securities purchase agreements with institutional investors to purchase 2,190,000 of its shares of common stock in a registered direct offering priced at-the-market under Nasdaq rules. Additionally, Sigma Labs has also agreed to issue to the investors short-term warrants to purchase up to an aggregate of 2,190,000 shares of common stock in a concurrent private placement. 