Otter Tail Corp — Director's Dealing 2025

Apr 9, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Otter Tail Corp (OTTR)
CIK: 0001466593
Period of Report: 2025-04-08

Reporting Person: Wahlund Todd R (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-04-08	Common Stock	M	600	$75.39	Acquired	9346	Direct
2025-04-08	Common Stock	F	308	$75.39	Disposed	9038	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-04-08	Restricted Stock Units	$	M	600	Disposed	2025-04-08	Common Stock (600)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2990	Indirect
Common Stock	7	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Restricted Stock Units	$		Common Stock (460)	460	Direct
Restricted Stock Units	$		Common Stock (600)	600	Direct
Restricted Stock Units	$		Common Stock (900)	900	Direct
Restricted Stock Units	$		Common Stock (1500)	1500	Direct

Footnotes

F1: The reporting person receives one share of Common Stock for each restricted stock unit that vests.

F2: Total direct holdings include shares acquired through the dividend reinvestment plan, the Employee Stock Purchase Plan, and shares acquired pursuant to restricted stock unit distributions.

F3: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4: Restricted stock units vest four years from date shown above.

F5: The restricted stock units vest in four equal annual installments beginning the date shown above.