Item 8.01. Other Events On July 14, 2026, Constellation Energy Corporation (the Company) learned the results of the PJM capacity auction for the 2028-2029 planning year. Each of the Company's power plants located in the PJM market cleared in the auction. Capacity revenues for nuclear units are included in the gross receipts calculation for the Production Tax Credit. The auction results take effect June 1, 2028. The table below lists the Company's cleared capacity volumes for the 2028-2029 capacity auction by zone. Cleared capacity volumes for generation assets held for sale are excluded. Cleared Volumes at Ownership Capacity Performance MW Price COMED Nuclear 9,800 $ 325 Fossil/Others 400 325 Sub Total 10,200 EMAAC Nuclear 4,325 $ 325 Fossil/Others 2,225 325 Sub Total 6,550 MAAC Nuclear 1,575 $ 325 Fossil/Others 150 325 Sub Total 1,725 BGE Nuclear — $ 325 Fossil/Others 375 325 Sub Total 375 RTO Nuclear — $ 325 Fossil/Others 25 325 Sub Total 25 PJM Portfolio Nuclear 15,700 Fossil/Others 3,175 Grand Total 18,875 * * * * * This combined Current Report on Form 8-K is being furnished separately by Constellation Energy Corporation and Constellation Energy Generation, LLC (collectively, the Registrants). Information contained herein relating to one of the Registrants has been furnished by the Registrant on its own behalf. Neither Registrant makes any representation as to information relating to the other Registrant. This report contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks and uncertainties. Words such as “could,” “may,” “expects,” “anticipates,” “will,” “targets,” “goals,” “projects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “predicts,” and variations on such words, and similar expressions that reflect our current views with respect to future events and operational, economic, and financial performance, are intended to identify such forward-looking statements. Forward-looking statements are based on current expectations, estimates and assumptions that involve a number of risks and uncertainties that could cause actual results to differ materially from those projected. The factors that could cause actual results to differ materially from the forward-looking statements made by the Registrants include those factors discussed herein as well as the items discussed in (1) the Registrants' combined 2025 Annual Report on Form 10-K in (a) Part I, ITEM 1A. Risk Factors, (b) Part II, ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and (c) Part II, ITEM 8. Financial Statements and Supplementary Data: Note 18 — Commitments and Contingencies; (2) the Registrants' First Quarter 2026 Quarterly Report on Form 10-Q in (a) Part II, ITEM 1A. Risk Factors, (b) Part I, ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and (c) Part I, ITEM 1. Financial Statements: Note 15 — Commitments and Contingencies; and (3) other factors discussed in filings with the SEC by the Registrants. Investors are cautioned not to place undue reliance on these forward-looking statements, whether written or oral, which apply only as of the date of this Current Report on Form 8-K. Neither Registrant undertakes any obligation to publicly release any revision to its forward-looking statements to reflect events or circumstances after the date of this Current Report on Form 8-K. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, each Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. CONSTELLATION ENERGY CORPORATION /s/ Shane P. Smith Shane P. Smith Executive Vice President and Chief Financial Officer Constellation Energy Corporation CONSTELLATION ENERGY GENERATION, LLC /s/ Shane P. Smith Shane P. Smith Executive Vice President and Chief Financial Officer Constellation Energy Generation, LLC July 14, 2026