Otter Tail Corp — Director's Dealing 2010

Feb 16, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Otter Tail Corp (OTTR)
CIK: 0001466593
Period of Report: 2010-02-12

Reporting Person: MOLBERT LAURIS N (COO & Exec Vice Pres)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-02-12	Common Stock	M	11228	—	Acquired	73463	Direct
2010-02-12	Common Stock	F	3530	—	Disposed	69933	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-02-12	Performance Rights	$	M	11228	Disposed		Common Stock (11228)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	235.7495	Indirect

Footnotes

F1: The fair market value on date of grant 10/29/2007 was $35.84 with fair market value on vesting date of $20.575.

F2: Total direct holdings include shares jointly held with spouse through Wells Fargo and shares acquired individually pursuant to Restricted Stock Awards and Performance Award distributions.

F3: Performance Award: On 2/12/2010, 3,530 shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F4: This Performance Share Award had no conversion or exercise price established at the time of the grant.

F5: There is no specific "Exercisable Date" on this Performance Share Award.

F6: There is no specific "Expiration Date" on this Performance Share Award.