ALLETE has entered an agreement to be acquired by a partnership led by Canada Pension Plan Investment Board and Global Infrastructure Partners and start the process to become a private company. Learn more at www.ALLETEforward.com.
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SEC FORM 4 SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940 		 
OMB APPROVAL
OMB Number: 3235-0287
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hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
AMBERG DEBORAH A
(Last) (First) (Middle)
30 WEST SUPERIOR STREET
(Street)
DULUTH MN 55802
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
ALLETE INC [ ALE ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
SrVP, Gen. Counsel & Secretary
3. Date of Earliest Transaction (Month/Day/Year)
03/16/2015
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 03/16/2015 M 6,004 A $44.15 21,243.15(1) D
Common Stock 03/16/2015 S 6,004 D $53.58(2) 15,239.15 D
Common Stock 13,559.36(3) I By RSOP Trust
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (Right to Buy) $44.15 03/16/2015 M 6,004 (4) 02/01/2016 Common Stock 6,004 $0 0 D
Explanation of Responses:
1. Includes shares acquired in exempt transactions pursuant to the dividend reinvestment feature of ALLETE's stock purchase and dividend reinvestment plan based on plan information available as of March 1, 2015.
2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.45-$53.80, inclusive. The reporting person undertakes to provide to ALLETE, any security holder of ALLETE, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range provided above.
3. Includes shares acquired in exempt transactions under ALLETE's retirement savings and stock ownership plan (RSOP) based on RSOP plan information available as of March 13, 2015.
4. This option vested in three equal installments, on the first, second, and third anniversary of the February 1, 2006 grant date.
Remarks:
Ingrid K. Johnson for Deborah A. Amberg 03/17/2015
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.