(1) | Includes: 801,404 shares of Common Stock subject to immediately exercisable stock options held by the Reporting Person; 624,220 shares of Common Stock and 1,000 shares of Series D Preferred Stock immediately convertible into 1,250,000 shares of Common Stock held by WFI Investments, LLC (f/k/a LRFA, LLC), of which the Reporting Person is the managing member; 1,795,750 shares of Common Stock and warrants to purchase up to an aggregate of 41,191,800 shares of Common Stock held by the Welch Revocable Trust, of which the Reporting Person is the trustee; 929,486 shares of Common Stock held by Welch Charitable Remainder Unitrust Agreement II dtd 3/2/2000, of which the Reporting Person is the trustee; 1,607,091 shares of Common Stock and immediately exercisable warrants to purchase up to an aggregate of 58,200 shares of Common Stock held by 2020 Welch Charitable Remainder Unitrust dtd 8/5/2020, of which the Reporting Person is the trustee; and 1,625,558 shares of Common Stock held by 2020 Welch Childrens Charitable Remainder Unitrust dtd 8/5/2020, of which the Reporting Person is the trustee. |