On December 31, 2020, Builders FirstSource amended its Amended and Restated Certificate of Incorporation to increase the number of authorized shares of BLDR Common Stock from 200,000,000 shares of BLDR Common Stock to 300,000,000 shares of BLDR Common Stock, by replacing that reference to “200,000,000” in the first full paragraph of Article FOURTH of the Amended and Restated Certificate of Incorporation with “300,000,000.”