Solid Power Inc. (SLDP) filed a Form 8K - Regulation FD Disclosure - with the U.S Securities and Exchange Commission on July 02, 2026.

On July 1, 2026, the Company issued a press release announcing Mr. Breitweg's appointment to the Board. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. Internet addresses in the press release are for informational purposes only and are not intended to be hyperlinks to other information of the Company. Such exhibit and the information set forth therein will not be deemed to be filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise be subject to the liabilities of that section, nor will it be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act.

The full text of this SEC filing can be retrieved at: https://www.sec.gov/Archives/edgar/data/1844862/000110465926079956/tm2619489d1_8k.htm

Any exhibits and associated documents for this SEC filing can be retrieved at: https://www.sec.gov/Archives/edgar/data/1844862/000110465926079956/0001104659-26-079956-index.htm

Public companies must file a Form 8-K, or current report, with the SEC generally within four days of any event that could materially affect a company's financial position or the value of its shares.