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CEG · Current Report (Form 8-K) · Filed March 26, 2026

Constellation Energy Corp — Current Report (Form 8-K)

Form
8-K
Filed
March 26, 2026
Period
Mar 23, 2026
Ticker
CEG
Accession
0001868275-26-000041
Boardroom Alpha · Filing insights

Constellation Energy director Alan Armstrong resigns from the Board, effective March 23, 2026.

About Constellation Energy Corp
Market cap
$98.5B
1Y TSR
−4.9%
3Y TSR
+48.3%
Board grade
B
Sector
Utilities
CEO
Joseph Dominguez
Last annual meeting: Apr 28, 2026 · View full Constellation Energy Corp profile →
ceg-20260323

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
March 23, 2026
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 NumberIRS Employer Identification Number
001-41137CONSTELLATION ENERGY CORPORATION87-1210716
(a Pennsylvania corporation)
1310 Point Street
Baltimore, Maryland 21231-3380
(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 classTrading 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 the registrant is an emerging growth company 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 the registrant has 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 5 – Corporate Governance and Management
Item 5.02(b). Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On March 23, 2026, Alan Armstrong notified the Board of Directors (the “Board”) of Constellation Energy Corporation (the “Company”) of his resignation from the Board. His resignation is effective March 23, 2026.

Section 9 - Financial Statements and Exhibits
Item 9.01. Financial Statements and Exhibits

(d) Exhibits.
Exhibit No.
Description
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.



SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
CONSTELLATION ENERGY CORPORATION
/s/ Arden T. Phillips
Arden T. Phillips
Vice President, Deputy General Counsel and Corporate Secretary

March 26, 2026




EXHIBIT INDEX
Exhibit No.
Description
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.

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Reference

Frequently asked questions

When did Constellation Energy Corp file this 8-K?
Constellation Energy Corp (CEG) filed this Current Report (Form 8-K) with the SEC on March 26, 2026. The accession number assigned by EDGAR is 0001868275-26-000041.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Constellation Energy director Alan Armstrong resigns from the Board, effective March 23, 2026. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Constellation Energy Corp's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Constellation Energy Corp has filed under CIK 1868275, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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