Solid Power (SLDPW) SEC Filings, Jun-Aug 2025

Amendment No. 1 to Schedule 13D for Solid Power, Inc. David M. Leuschen and Pierre F. Lapeyre, Jr., both senior managing directors of Riverstone Holdings LLC, updated their disclosures for Solid Power common stock and related warrants. As of August 21, 2025 Mr. Leuschen reports beneficial ownership of 13,502,606 shares (7.29%) and Mr. Lapeyre reports 15,808,997 shares (8.44%), with certain amounts reflecting presently exercisable Private Placement Warrants. The filing restates sources of securities held by Sponsor, Riverstone SP and REL, describes prior distributions and sales of warrants and shares, and notes a Lapeyre transfer of 2,044,171 Private Placement Warrants on August 19, 2025. The amendment also discloses that Riverstone Energy has proposed a managed wind-down of its portfolio and intends to realize public assets, including REL's holdings, within three months after its shareholder meeting on August 22, 2025.