Pennsylvania 1310 Point Street Baltimore Maryland 21231-3380(833)883-0162 Pennsylvania 200 Energy Way Kennett Square Pennsylvania 19348-2473(833)883-0162 Common Stock, without par value CEG The Nasdaq Stock Market LLC 0001868275 0001168165 False☐0001868275 2025-05-06 2025-05-06 0001868275 ceg:ConstellationEnergyGenerationLLCMember 2025-05-06 2025-05-06

| UNITED STATES SECURITIES AND EXCHANGE COMMISSION |
| Washington, D.C. 20549 |
| FORM | 8-K |

| CURRENT REPORT |
| Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 |
| May 6, 2025 |
| Date of Report (Date of earliest event reported) |

Commission File Number |  | Name of Registrant; State or Other Jurisdiction of Incorporation; Address of Principal Executive Offices; and Telephone Number |  | IRS Employer Identification Number
001-41137 |  | CONSTELLATION ENERGY CORPORATION |  | 87-1210716
|  | (a Pennsylvania corporation) 1310 Point Street Baltimore, Maryland 21231-3380 (833) 883-0162 |  |
333-85496 |  | CONSTELLATION ENERGY GENERATION, LLC |  | 23-3064219
|  | (a Pennsylvania limited liability company) 200 Energy Way Kennett Square, Pennsylvania 19348-2473 (833) 883-0162 |  |

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:
Title of each class |  | Trading Symbol(s) |  | Name of each exchange on which registered
CONSTELLATION ENERGY CORPORATION: |  |  |  |
Common Stock, without par value |  | CEG |  | The Nasdaq Stock Market LLC

Indicate by check mark whether any of the registrants are emerging growth companies as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐

If an emerging growth company, indicate by check mark if any of the registrants have elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Section 2 - Financial Information
Item 2.02. Results of Operations and Financial Condition
Section 7 - Regulation FD
Item 7.01. Regulation FD Disclosure
On May 6, 2025, Constellation Energy Corporation (Nasdaq: CEG) announced via press release its results for the first quarter ended March 31, 2025. A copy of the press release and related attachments are attached hereto as Exhibit 99.1. Also attached as Exhibit 99.2 to this Current Report on Form 8-K are the presentation slides to be used during the first quarter 2025 earnings conference call. This Form 8-K and the attached exhibits are provided under Items 2.02, 7.01 and 9.01 of Form 8-K and are furnished to, but not filed with, the Securities and Exchange Commission.
We have scheduled the conference call for 9:00 AM ET on May 6, 2025. To access the call by phone, please follow the registration link available on the Investor Relations page of our website: https://investors.constellationenergy.com. The call will also be webcast and archived on the Investor Relations page of our website. Media representatives are invited to participate on a listen-only basis.
Section 9 - Financial Statements and Exhibits
Item 9.01. Financial Statements and Exhibits
(d) Exhibits.

Exhibit No. | Description
99.1 | Press release and earnings release attachments
99.2 | Earnings conference call presentation slides
101 | Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.
104 | The cover page from the Current Report on Form 8-K, formatted as Inline XBRL.

* * * * *
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. These forward-looking statements include, but are not limited to, statements regarding the proposed transaction between Constellation and Calpine Corporation, the expected closing of the proposed transaction and the timing thereof. This includes statements regarding the financing of the proposed transaction and the pro forma combined company and its operations, strategies and plans, enhancements to investment-grade credit profile, synergies, opportunities and anticipated future performance and capital structure, and expected accretion to earnings per share and free cash flow. Information adjusted for the proposed transaction should not be considered a forecast of future results.
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 2024 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 2025 Quarterly Report on Form 10-Q (to be filed on May 6, 2025) 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 13 — 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 report. 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 report.

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/ Daniel L. Eggers
| Daniel L. Eggers
| Executive Vice President and Chief Financial Officer
| Constellation Energy Corporation
| CONSTELLATION ENERGY GENERATION, LLC
| /s/ Daniel L. Eggers
| Daniel L. Eggers
| Executive Vice President and Chief Financial Officer
| Constellation Energy Generation, LLC

May 6, 2025

EXHIBIT INDEX

Exhibit No. | Description
99.1 | Press release and earnings release attachments
99.2 | Earnings conference call presentation slides
101 | Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.
104 | The cover page from the Current Report on Form 8-K, formatted as Inline XBRL.