Charlene A. Thomas - 15 Dec 2025 Form 4 Insider Report for ALLETE INC (ALE)

Role: Director
Signature: Julie L. Padilla for Charlene A. Thomas
Issuer symbol: ALE
Transactions as of: 15 Dec 2025
Net transactions value: -$556,812
Form type: 4
Filing time: 16 Dec 2025, 21:43:42 UTC
Previous filing: 02 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Thomas Charlene A	Director	30 WEST SUPERIOR STREET, DULUTH	Julie L. Padilla for Charlene A. Thomas	16 Dec 2025	0001781339

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALE	Common Stock	Disposed to Issuer	$556,812	-8,311	-100%	$67.00	0	15 Dec 2025	Direct	F1

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

Charlene A. Thomas is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id	Content
F1	Pursuant to the terms of that certain Agreement and Plan of Merger ("Merger Agreement"), dated as of May 5, 2024, by and among ALLETE, Inc., a Minnesota corporation (the "Company"), Alloy Parent LLC, a Delaware limited liability company ("Parent"), and Alloy Merger Sub LLC, a Delaware limited liability company and wholly owned subsidiary of Parent ("Merger Sub"), at the effective time on December 15, 2025 (the "Effective Time"), Merger Sub merged with and into the Company, with the Company surviving such merger (the "Merger") as a subsidiary of Parent. In connection with the Merger, each share of Company common stock, no par value ("Common Stock"), was automatically converted into the right to receive $67.00 in cash per share without interest (the "Merger Consideration"). The disposition of the securities by the Reporting Person in the Merger was approved by the Company's board of directors in the manner contemplated by Rule 16b-3 under the Securities Exchange Act of 1934, as amended.

Content

Pursuant to the terms of that certain Agreement and Plan of Merger ("Merger Agreement"), dated as of May 5, 2024, by and among ALLETE, Inc., a Minnesota corporation (the "Company"), Alloy Parent LLC, a Delaware limited liability company ("Parent"), and Alloy Merger Sub LLC, a Delaware limited liability company and wholly owned subsidiary of Parent ("Merger Sub"), at the effective time on December 15, 2025 (the "Effective Time"), Merger Sub merged with and into the Company, with the Company surviving such merger (the "Merger") as a subsidiary of Parent. In connection with the Merger, each share of Company common stock, no par value ("Common Stock"), was automatically converted into the right to receive $67.00 in cash per share without interest (the "Merger Consideration"). The disposition of the securities by the Reporting Person in the Merger was approved by the Company's board of directors in the manner contemplated by Rule 16b-3 under the Securities Exchange Act of 1934, as amended.