Otter Tail Corp — Director's Dealing 2021

Feb 9, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Otter Tail Corp (OTTR)
CIK: 0001466593
Period of Report: 2021-02-06

Reporting Person: MACFARLANE CHARLES S (President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-06	Common Stock	M	7500	—	Acquired	192697	Direct
2021-02-06	Common Stock	F	3516	$41.6625	Disposed	189181	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-06	Restricted Stock Units	$	M	1725	Disposed		Common Stock (0)	Direct
2021-02-06	Restricted Stock Units	$	M	1800	Disposed		Common Stock (1800)	Direct
2021-02-06	Restricted Stock Units	$	M	1975	Disposed		Common Stock (3950)	Direct
2021-02-06	Restricted Stock Units	$	M	2000	Disposed		Common Stock (6000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2692	Indirect
Common Stock	2067	Indirect

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation common stock.

F2: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

F4: The restricted stock units vest in four equal annual installments which began February 6, 2018.

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