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

Reporting relationship: Director
Issuer ticker: ALE
Reported as of: 15 Dec 2025
Net transaction value: -$556,812
SEC form: 4
Accepted by SEC: 16 Dec 2025, 21:43:42 UTC
Prior SEC filing: 02 Jun 2025
Source filing: View source filing
Reporting owner signature: Julie L. Padilla for Charlene A. Thomas

Key filing fact

Charlene A. Thomas filed Form 4 for ALLETE INC (ALE) on 16 Dec 2025.

Key facts

This page summarizes Charlene A. Thomas's Form 4 filing for ALLETE INC (ALE).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 16 Dec 2025, 21:43.

Change

Previous filing in this sequence was filed on 02 Jun 2025.
Current net transaction value: -$556,812.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001781339 Primary reporting owner

Thomas Charlene A

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

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ALE transaction

Common Stock

Disposed to Issuer

Transaction value: $556,812
Shares: -8,311
Change %: -100%
Price: $67.00
Shares after: 0
Date: 15 Dec 2025
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Charlene A. Thomas is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 1 footnote

Footnote 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.