Charles L. Harrington - 31 Dec 2025 Form 4 Insider Report for Constellation Energy Corp (CEG)

Role: Director
Signature: /s/ Brian Buck, Attorney-in-Fact for Charles Harrington
Issuer symbol: CEG
Transactions as of: 31 Dec 2025
Net transactions value: +$36,387
Form type: 4
Filing time: 05 Jan 2026, 16:22:41 UTC
Previous filing: 02 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Harrington Charles L.	Director	1310 POINT STREET, BALTIMORE	/s/ Brian Buck, Attorney-in-Fact for Charles Harrington	05 Jan 2026	0001588300

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CEG	Deferred Compensation - Phantom Share Equivalents	Award	$36,387	+103	+2.1%	$353.27	5,055	31 Dec 2025	Common Stock	103		Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Phantom share equivalents acquired in the reporting person's Constellation Energy Corporation stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and will be settled in cash on a 1-for-1 basis upon termination of the reporting person's service. The balance of phantom share equivalents may fluctuate due to periodic changes in the fund composition. Balance also reflects approximately 5 share equivalents accrued on December 5, 2025 through dividend reinvestment.

Content

Phantom share equivalents acquired in the reporting person's Constellation Energy Corporation stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and will be settled in cash on a 1-for-1 basis upon termination of the reporting person's service. The balance of phantom share equivalents may fluctuate due to periodic changes in the fund composition. Balance also reflects approximately 5 share equivalents accrued on December 5, 2025 through dividend reinvestment.