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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
66756	Allete Inc	ALE	Electric & Other Services Combined (4931)	410418150

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1298646	W Donald Stellmaker	30 West Superior Street Duluth MN 55803	Treasurer	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-05-06	1,482	$29.79	4,077	No	4	M	Direct
Common Stock	Disposition	2010-05-06	1,482	$36.94	2,595	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2010-05-06	1,482	$0.00	1,482	$29.79

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2012-01-02	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	5,153	Indirect	By RSOP Trust

Footnotes

Includes shares acquired in exempt transactions under the dividend reinvestment feature of ALLETE's stock purchase and dividend reinvestment plan and pursuant to the dividend equivalent feature of a restricted stock grant under ALLETE's executive long-term incentive compensation plan, and is based on plan information available as of April 30, 2010.
Includes shares acquired in exempt transactions under ALLETE's retirement savings and stock ownership plan (RSOP) and is based on RSOP plan information available as of April 30, 2010.
50% was exercisable on January 2, 2003 and 50% was exercisable on January 2, 2004.