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.



February 7, 2006

Ms. Tina Koecher
Minnesota Power
30 West Superior Street
Duluth, MN 55802-2093


RE:        Amended - Schedule 13G


Enclosed pursuant to Rule 13d-1(b) under the Securities Exchange Act of 1934 is
a report on Schedule 13G reporting beneficial ownership at December 31, 2005 by
Ameriprise Financial, Inc. in Common Stock of Allete, Inc.

Sincerely,


/s/ Steve Turbenson
- -------------------
    Steve Turbenson
    Director - Fund Administration




Enclosure






SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 SCHEDULE 13G Under the Securities and Exchange Act of 1934 Allete, Inc. - ------------------------------------------------------------------------------ (Name of Issuer) Common Stock - ------------------------------------------------------------------------------- (Title of Class of Securities) 018522300 - ------------------------------------------------------------------------------- (CUSIP Number) December 31, 2005 - ------------------------------------------------------------------------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: This Schedule is filed pursuant to Rule 13d-1(b) The information required in the remainder of this cover page (except any items to which the form provides a cross-reference) shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act.

CUSIP NO. 018522300 ---------- 1) Name of Reporting Person Ameriprise Financial, Inc. S.S. or I.R.S. Identification IRS No. 13-3180631 No. of Above Person - -------------------------------------------------------------------------------- 2) Check the Appropriate Box (a) -------------------------------- if a Member of a Group (b) X* ------------------------------- *This filing describes the reporting person's relationship with other persons, but the reporting person does not affirm the existence of a group. - -------------------------------------------------------------------------------- 3) SEC Use Only - -------------------------------------------------------------------------------- 4) Citizenship or Place of Organization Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH (5) Sole Voting Power -0- --------------------- --------------- (6) Shared Voting Power 5,103,331 ----------------------- --------------- (7) Sole Dispositive Power -0- -------------------------- --------------- (8) Shared Dispositive Power 5,179,820 --------------------------- --------------- - -------------------------------------------------------------------------------- 9) Aggregate Amount Beneficially Owned by Each Reporting Person 5,179,820 - --------------------------------------------------------------------------------

10) Check if the Aggregate Amount in Row (9) Excludes Certain Shares Not Applicable - -------------------------------------------------------------------------------- 11) Percent of Class Represented by Amount In Row (9) 17.22% - -------------------------------------------------------------------------------- 12) Type of Reporting Person CO - ------------------------------------------------------------------------------- 1(a) Name of Issuer: Allete, Inc. 1(b) Address of Issuer's Principal 30 West Superior Street Executive Offices: Duluth, MN 55802-2093 2(a) Name of Person Filing: Ameriprise Financial, Inc. 2(b) Address of Principal Business Office: Ameriprise Financial, Inc. 145 Ameriprise Financial Center Minneapolis, MN 55474 2(c) Citizenship: Delaware 2(d) Title of Class of Securities: Common Stock 2(e) Cusip Number: 018522300 3 Information if statement is filed pursuant to Rules 13d-1(b) or 13d-2(b): This statement is filed pursuant to Rule 13d-1(b) or 13d-2(b) and the person filing, Ameriprise Financial, Inc. is a parent holding company in accordance with Rule 13d-1(b)(1)(ii)(G). (Note: See Item 7) 4(a) Amount Beneficially Owned as of December 31, 2005: 5,179,820 shares may be deemed beneficially owned by the reporting person within the meaning of Rule 13d-3 of the Securities Exchange Act of 1934. The reporting person, and each of its subsidiaries identified on the attached Exhibit I disclaims beneficial ownership of any shares reported on this Schedule. 4(b) Percent of Class: 17.22% 4(c) Number of Shares as to which such person has: (i) Sole power to vote or to direct the vote: 0 (ii) Shared power to vote or direct the vote: 5,103,331* (iii) Sole power to dispose or to direct the disposition of: 0 (iv) Shared power to dispose or to direct the disposition of:5,179,820** * Certain shares of the issuer's Common Stock are held in trust for the benefit of employees participating in one or more employee benefit plans subject to the Employee Retirement Income Security Act of 1974, as amended ("ERISA"), with respect to which Ameriprise Trust Company, a wholly owned subsidiary of Ameriprise Financial, Inc., serves as trustee. As a plan trustee, Ameriprise Trust Company votes shares allocated to participant accounts as directed by plan participants, subject to Section 404 of ERISA. All shares allocated to participants for whom no voting instructions are received, are voted in the same proportion as the trustee votes shares for which it did receive voting instructions. **Certain shares of the issuer's Common Stock are held in trust for the benefit of employees participating in one or more employee benefit plans with respect to which Ameriprise Trust Company, a wholly owned subsidiary of Ameriprise Financial, Inc., serves as trustee. Shares of Common Stock held by the trustee on behalf of the plans may be disposed of by the plans or the trustee only in accordance with the terms of the plan.

5 Ownership of 5% or Less of a Class: Not Applicable. 6 Ownership of more than 5% on Behalf of Another Person: Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Common Stock of Allete, Inc. The interest of one person, Ameriprise Trust Company, amounted to 5,103,331 shares or 16.97% of the total outstanding Common Stock of the issuer at December 31, 2005. Ameriprise Trust Company may be deemed to be the beneficial owner of such shares by virtue of serving as directed trustee for certain employee benefit plans. 7 Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company: See Exhibit I 8 Identification and Classification of Members of the Group: Not Applicable 9 Notice of Dissolution of Group: Not Applicable 10 Certification: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purposes or effect. After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Ameriprise Financial, Inc. Dated: December 31, 2005 By /s/ Steve Turbenson ---------------------- Signature Steve Turbenson Director - Fund Administration Telephone: (612) 671-2059

Exhibit Index Exhibit I Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company. Exhibit II Joint Filing Agreement

Exhibit I To Schedule 13G Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company. The classification and identity of the relevant subsidiaries is as follows: Bank - Ameriprise Trust Company, a trust company organized under the laws of the State of Minnesota Investment Company - RiverSource Funds, comprised of investment companies registered under section 8 of the Investment Company Act of 1940 Investment Adviser - RiverSource Investments, LLC, an investment adviser registered under section 203 of the Investment Advisers Act of 1940.

Exhibit II To Schedule 13G Joint Filing Agreement The undersigned persons, on February 9, 2006, agree and consent to the joint filing on their behalf of this Schedule 13G in connection with their beneficial ownership of the Common Stock of Allete, Inc. at December 31, 2005. Ameriprise Financial, Inc. By /s/ Steve Turbenson ---------------------- Steve Turbenson Director--Fund Administration Ameriprise Trust Company By /s/ Mark Ellis ------------------- Mark S. Ellis Senior Vice President