Otter Tail Corp — Director's Dealing 2009

Dec 17, 2009

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Otter Tail Corp (OTTR)
CIK: 0001466593
Period of Report: 2009-12-15

Reporting Person: ERICKSON JOHN D (Director, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2009-12-15	Common Stock	S	274	$23.34	Disposed	2126	Indirect
2009-12-15	Common Stock	S	510	$23.35	Disposed	1616	Indirect
2009-12-15	Common Stock	S	100	$23.36	Disposed	1516	Indirect
2009-12-15	Common Stock	S	202	$23.37	Disposed	1314	Indirect
2009-12-15	Common Stock	S	100	$23.38	Disposed	1214	Indirect
2009-12-15	Common Stock	S	142	$23.40	Disposed	1072	Indirect
2009-12-15	Common Stock	S	72	$23.41	Disposed	1000	Indirect
2009-12-15	Common Stock	S	400	$23.42	Disposed	600	Indirect
2009-12-15	Common Stock	S	500	$23.46	Disposed	100	Indirect
2009-12-15	Common Stock	S	100	$23.47	Disposed	0	Indirect
2009-12-16	Common Stock	M	10000	$19.75	Acquired	106852	Direct
2009-12-16	Common Stock	S	700	$23.37	Disposed	106152	Direct
2009-12-16	Common Stock	S	200	$23.38	Disposed	105952	Direct
2009-12-16	Common Stock	S	2600	$23.40	Disposed	103352	Direct
2009-12-16	Common Stock	S	300	$23.4075	Disposed	103052	Direct
2009-12-16	Common Stock	S	1000	$23.41	Disposed	102052	Direct
2009-12-16	Common Stock	S	400	$23.415	Disposed	101652	Direct
2009-12-16	Common Stock	S	300	$23.4175	Disposed	101352	Direct
2009-12-16	Common Stock	S	1500	$23.42	Disposed	99852	Direct
2009-12-16	Common Stock	S	1200	$23.43	Disposed	98652	Direct
2009-12-16	Common Stock	S	100	$23.44	Disposed	98552	Direct
2009-12-16	Common Stock	S	600	$23.45	Disposed	97952	Direct
2009-12-16	Common Stock	S	100	$23.455	Disposed	97852	Direct
2009-12-16	Common Stock	S	400	$23.46	Disposed	97452	Direct
2009-12-16	Common Stock	S	200	$23.47	Disposed	97252	Direct
2009-12-16	Common Stock	S	400	$23.48	Disposed	96852	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	4981.9789	Indirect

Footnotes

F1: All sales and gifts reported in this Form 4 were effected pursuant to Rule 10b5-1(c) trading plans.

F2: Trading Plan was adopted by The John and Kim Erickson Family Foundation, a non-profit charitable corporation under Section 501(c)(3) of the Internal Revenue Code on 5/7/2008.

F3: Trading Plan was adopted by the reporting person on 3/6/2008.

F4: Total direct holdings include shares jointly held with spouse through Merrill Lynch and shares acquired individually pursuant to Restricted Stock Awards and Performance Award distributions.