Thomas J. Webb - 13 Apr 2026 Form 4 Insider Report for Otter Tail Corp (OTTR)

Reporting relationship: Director
Issuer ticker: OTTR
Reported as of: 13 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 14 Apr 2026, 13:47:05 UTC
Prior SEC filing: 14 Apr 2025
Source filing: View source filing
Reporting owner signature: /s/ Thomas J. Webb by James A. Versteeg, Attorney-in-Fact

Key filing fact

Thomas J. Webb filed Form 4 for Otter Tail Corp (OTTR) on 14 Apr 2026.

Key facts

This page summarizes Thomas J. Webb's Form 4 filing for Otter Tail Corp (OTTR).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 14 Apr 2026, 13:47.

Change

Previous filing in this sequence was filed on 14 Apr 2025.
Current net transaction value: $0.

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 0001179875 Primary reporting owner

WEBB THOMAS J

Relationship: Director
Address: 215 SOUTH CASCADE STREET, FERGUS FALLS
Signature: /s/ Thomas J. Webb by James A. Versteeg, Attorney-in-Fact
Signature date: 14 Apr 2026

Reported non-derivative transactions

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

OTTR transaction

Common Stock

Award

Transaction value
Shares: +1,500
Change %: +9.3%
Price
Shares after: 17,600
Date: 13 Apr 2026
Ownership: Direct
Footnotes: F1, F2, F3

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Shares of Common Stock acquired under the 2023 Stock Incentive Plan, which is a grant of Restricted Stock. The shares granted on April 13, 2026 will vest in near-equal installments of one-third per year beginning April 8, 2027.

Footnote F2

This grant has a fair market value of $91.15.

Footnote F3

Total direct holdings include shares acquired individually and pursuant to Restricted Stock Award distributions.