GALE E. KLAPPA - 23 Feb 2026 Form 4 Insider Report for WEC ENERGY GROUP, INC. (WEC)

Role: Director
Signature: Joshua M. Erickson, as attorney in fact
Issuer symbol: WEC
Transactions as of: 23 Feb 2026
Net transactions value: -$150,303
Form type: 4
Filing time: 24 Feb 2026, 15:37:45 UTC
Previous filing: 18 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
KLAPPA GALE E	Director	231 W. MICHIGAN STREET, MILWAUKEE	Joshua M. Erickson, as attorney in fact	24 Feb 2026	0001195320

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WEC	Common Stock	Options Exercise	$216,796	+3,180	+1.1%	$68.18	279,780	23 Feb 2026	Direct
transaction	WEC	Common Stock	Sale	$367,099	-3,180	-1.1%	$115.44	276,600	23 Feb 2026	Direct
holding	WEC	Common Stock						4,107	23 Feb 2026	ERSP	F1

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	WEC	Stock Option (right to buy)	Options Exercise	$0	-3,180	-100%	$0.000000	0	23 Feb 2026	Common Stock	3,180	$68.18	Direct

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

Explanation of Responses:

Id	Content
F1	Includes shares acquired under WEC Energy Group, Inc.'s Employee Retirement Savings Plan (ERSP) in transactions exempt from Section 16(b) pursuant to Rule 16b-3(c) and exempt from reporting pursuant to Rule 16a-3(f)(1)(i)(B). The number of shares in the ERSP attributable to any one participant varies with the price of the Common Stock. The information in this report is based on a plan statement dated as of February 24, 2026.

Content

Includes shares acquired under WEC Energy Group, Inc.'s Employee Retirement Savings Plan (ERSP) in transactions exempt from Section 16(b) pursuant to Rule 16b-3(c) and exempt from reporting pursuant to Rule 16a-3(f)(1)(i)(B). The number of shares in the ERSP attributable to any one participant varies with the price of the Common Stock. The information in this report is based on a plan statement dated as of February 24, 2026.