Constellation Energy Corp 8-K

What Happened
On January 13, 2026, Constellation Energy Generation, LLC issued a press release (filed as Exhibit 99.1 to Constellation Energy Corp’s Form 8‑K) announcing the expiration of its previously announced exchange offers and consent solicitations for outstanding notes of Calpine Corporation. The combined 8‑K was furnished by Constellation Energy Corporation and Constellation Energy Generation, LLC and was signed by Shane P. Smith, Executive Vice President and Chief Financial Officer.

Key Details

• Date of filing/press release: January 13, 2026.
• Issuer of press release: Constellation Energy Generation, LLC (attached as Exhibit 99.1).
• Event: Expiration of previously announced exchange offers and consent solicitations for outstanding Calpine Corporation notes.
• The filing includes forward‑looking statements about the exchange offers, consent solicitations, expected timing/likelihood of completion, and potential effects of the Calpine acquisition; investors are cautioned these are subject to risks and uncertainties.

Why It Matters
Exchange offers and consent solicitations relate to the treatment of Calpine’s outstanding debt and can affect the timing and structure of Constellation’s planned acquisition-related financing and integration. This filing confirms the offers have expired; investors should watch for follow‑up disclosures (results of the offers, any amendments, or next steps) in subsequent SEC filings to assess impacts on capital structure, expected synergies, and deal execution.