SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 4)*
MAGNETEK, INC.
(Name of Issuer)
COMMON STOCK
(Title of Class of Securities)
559424106
(CUSIP Number)
December 31, 2010
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which
this Schedule is filed:
[ X ] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[ ] Rule 13d-1(d)
*The remainder of this cover page shall be filled out for a
reporting person's initial filing on this form with respect to
the subject class of securities, and for any subsequent amendment
containing information which would alter the disclosures provided
in a prior cover page.
The information required in the remainder of this cover page
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. 559424106
1. NAME OF REPORTING PERSONS
HEARTLAND ADVISORS, INC.
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) [ ]
(b) [ ]
3. SEC USE ONLY
4. CITIZENSHIP OR PLACE OF ORGANIZATION
WISCONSIN, U.S.A.
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NUMBER OF 5. SOLE VOTING POWER
SHARES BENEFICIALLY
OWNED BY None
EACH
REPORTING 6. SHARED VOTING POWER
PERSON
WITH 3,000,000
7. SOLE DISPOSITIVE POWER
None
8. SHARED DISPOSITIVE POWER
3,000,000
-------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,000,000
10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ____
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
9.6%
12. TYPE OF REPORTING PERSON
IA
CUSIP No. 559424106
1. NAME OF REPORTING PERSONS
WILLIAM J. NASGOVITZ
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) [ ]
(b) [ ]
3. SEC USE ONLY
4. CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.A.
-------------------------------------------------------------------
NUMBER OF 5. SOLE VOTING POWER
SHARES BENEFICIALLY
OWNED BY None
EACH
REPORTING 6. SHARED VOTING POWER
PERSON
WITH 3,000,000
7. SOLE DISPOSITIVE POWER
None
8. SHARED DISPOSITIVE POWER
3,000,000
-------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,000,000
10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
9.6%
12. TYPE OF REPORTING PERSON
IN
Item 1.
(a) Name of Issuer: MAGNETEK, INC.
(b) Address of Issuer's Principal Executive Offices:
N49 W13650 Campbell Drive
Menomonee Falls, Wisconsin 53051
Item 2.
(a) Names of Persons Filing: (1) Heartland Advisors, Inc.
(2) William J. Nasgovitz
(b) Address of Principal Business Office:
All reporting persons may be contacted at 789 North Water
Street, Milwaukee, WI 53202
(c) Citizenship or Place of Organization: Heartland Advisors is a
Wisconsin corporation. William J. Nasgovitz is a United
States citizen.
(d) Title of Class of Securities: Common Stock
(e) CUSIP Number: 559424106
Item 3.
If this statement is filed pursuant to Sections 240.13d-1(b) or 240.13d-2(b)
or (c), check whether the person filing is a:
(a)[ ] Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o);
(b)[ ] Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)[ ] Insurance company as defined in Section 3(a)(19) of the Act
(15 U.S.C. 78c);
(d)[ ] Investment company registered under Section 8 of the Investment
Company Act of 1940(15 U.S.C. 80a-8);
(e)[X]* An investment adviser in accordance with Section 240.13d-1(b)(1)(ii)(E);
(f)[ ] An employee benefit plan or endowment fund in accordance with
Section 240.13d-1(b)(1)(ii)(F);
(g)[X]* A parent holding company or control person in accordance with
Section 240.13d-1(b)(1)(ii)(G);
(h)[ ] A savings association as defined in Section 3(b) of the Federal
Deposit Insurance Act (12 U.S.C. 1813);
(i)[ ] A church plan that is excluded from the definition of an
investment company under Section 3(c)(14) of the Investment Company Act
of 1940(15 U.S.C. 80a-3);
(j)[ ] A non-U.S. institution in accordance with Section 240.13d-1(b)(1)(ii)(J);
(k)[ ] Group, in accordance with Section 240.13d-1(b)(1)(ii)(K).
* The persons filing this Schedule 13G are Heartland Advisors, Inc.,
an investment adviser registered with the SEC, and William J. Nasgovitz,
President and control person of Heartland Advisors, Inc. The reporting
persons do not admit that they constitute a group.
Item 4. Ownership.
(a) Amount beneficially owned:
3,000,000 shares may be deemed beneficially owned within the meaning of
Rule 13d-3 of the Act by (1) Heartland Advisors, Inc. by virtue of its
investment discretion and voting authority granted by certain
clients, which may be revoked at any time; and (2) William J. Nasgovitz,
by virtue of his control of Heartland Advisors, Inc.
Mr. Nasgovitz disclaims beneficial ownership of any shares reported on
the Schedule.
(b) Percent of Class: 9.6%
(c) For information on voting and dispositive power with respect to the
above listed shares, see Items 5-9 of the Cover Pages.
Item 5. Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the fact that as
of the date hereof the reporting person has ceased to be the beneficial
owner of more than five percent of the class of securities, check the
following:[ ]
Item 6. Ownership of More than Five Percent on Behalf of Another Person.
The clients of Heartland Advisors, Inc., a registered investment adviser,
including an investment company registered under the Investment Company
Act of 1940 and other managed accounts, have the right to receive or the
power to direct the receipt of dividends and proceeds from the sale of
shares included on this Schedule. The Heartland Value Fund, a series of
the Heartland Group, Inc., a registered investment company, owns 3,000,000
shares or 9.6% of the class of securities reported herein. Any remaining
shares disclosed in this filing are owned by various other accounts
managed by Heartland Advisors, Inc. on a discretionary basis. To the
best of Heartland Advisors' knowledge, none of the other accounts owns
more than 5% of the outstanding stock.
Item 7. Identification and Classification of the Subsidiary Which Acquired
the Security Being Reported on By the Parent Holding Company or
Control Person.
Not Applicable.
Item 8. Identification and Classification of Members of the Group.
Not Applicable.
Item 9. Notice of Dissolution of Group.
Not Applicable.
Item 10. Certification.
By signing below, the undersigned certify that, to the best of
their knowledge and belief, the securities referred to above were acquired
and are held in the ordinary course of business and were not acquired and
are not held for the purpose of or with the effect of changing or influencing
the control of the issuer of the securities and were not acquired and are not
held in connection with or as a participant in any transaction having that
purpose or effect.
SIGNATURE
After reasonable inquiry and to the best of their knowledge and belief,
the undersigned certify that the information set forth in this statement
is true, complete and correct.
DATE: February 10, 2011
WILLIAM J. NASGOVITZ HEARTLAND ADVISORS, INC.
By: /s/ PAUL T. BESTE By: /s/ PAUL T. BESTE
Paul T. Beste Paul T. Beste
As Attorney in Fact for Chief Operating Officer
William J. Nasgovitz
(Pursuant to Power of Attorney Previously Filed)
EXHIBIT INDEX
Exhibit 1 Joint Filing Agreement
EXHIBIT 1
Joint Filing Agreement
In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act
of 1934, as amended, each of the undersigned hereby agrees to the joint
filing with the other reporting person of a statement on Schedule 13G
(including amendments thereto) with respect to the common stock,
$0.01 par value, of MAGNETEK, INC. and that this
Agreement be included as an Exhibit to such joint filing.
IN WITNESS WHEREOF, the undersigned hereby execute this Agreement
this 10th day of February, 2011.
WILLIAM J. NASGOVITZ
By: /s/ PAUL T. BESTE
Paul T. Beste
As Attorney in Fact for William J. Nasgovitz
(Pursuant to Power of Attorney Previously Filed)
HEARTLAND ADVISORS, INC.
By: /s/ PAUL T. BESTE
Paul T. Beste
Chief Operating Officer