This prospectus relates to the offer and sale from time to time by the selling securityholders named in this prospectus or their permitted transferees (the "Selling Securityholders") of up to 45,571,137 shares of our common stock, par value $0.0001 per share (the "common stock"), consisting of (i) 19,300,991 shares of common stock (the "Exchange Shares") issued by us pursuant to separately- and privately-negotiated agreements (the "Exchange Agreements") with certain holders of our 12.0% Convertible Senior Notes due 2029 (the "12.0% Notes"), 10.0% Convertible Senior Secured Notes due 2029 (the "10.0% Notes") and 7.0% Convertible Senior Notes due 2029 (the "7.0% Notes" and together with the 12.0% Notes and the 10.0% Notes, collectively, the "Notes") in exchange for approximately $10.7 million of cash interest otherwise payable on July 1, 2026, October 1, 2026 and January 1, 2027, and (ii) 26,270,146 shares of common stock (the "FPA Shares") issued or issuable by us pursuant to the terms of separately- and privately-negotiated OTC Equity Prepaid Forward Transaction Settlement Agreements (the "FPA Settlement Agreements") and related Forward Purchase Agreements. The Exchange Shares were issued by us to the Selling Securityholders pursuant to the Exchange Agreements on July 1, 2026. A total of 17,900,462 FPA Shares were issued by us to the Selling Securityholders pursuant to FPA Settlement Agreements, and up to an additional 8,369,684 FPA Shares are issuable pursuant to the FPA Settlement Agreements.