Form SC 13G/A MAGNETEK, INC. Filed by: AWM Investment Company, Inc.

THE UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 7 )*


Magnetek, Inc.
(Name of Issuer)

Common Stock, Par Value $.01
(Title of Class of Securities)

559424106
(CUSIP Number)

September 30, 2015
(Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this 
Schedule 13G 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 (however, see the Notes).



CUSIP No. 559424106
(1)	Names of Reporting Persons.  I.R.S. Identification Nos. of 
Above Persons (entities only):
	AWM Investment Company, Inc.
(2)	Check the Appropriate Box if a Member of a Group (See 
Instructions)	(a)___  b)___

(3)	SEC Use Only
(4)	Citizenship or Place of Organization:  Delaware, United States
Number of Shares Beneficially 
Owned by Each Reporting Person 
With
(5) Sole Voting Power:	                 
0**

(6) Shared Voting Power:	 0**

(7) Sole Dispositive Power:	                 
0**
 

(8) Shared Dispositive Power: 0**
(9)	Aggregate Amount Beneficially Owned by Each Reporting 
Person:  0**
(10)	Check if the Aggregate Amount in Row (9) Excludes Certain Shares 
(See Instructions):
(11)	Percent of Class Represented by Amount in Row (9): 0.0%**
(12)	Type of Reporting Person (See Instructions):  IA
**AWM Investment Company, Inc., a Delaware Corporation (?AWM?), is the 
investment adviser to Special Situations Cayman Fund, L.P. (?CAYMAN?) 
and Special Situations Fund III QP, L.P. (?SSFQP?) (CAYMAN and SSFQP 
will hereafter be referred to as the ?Funds?).  As the investment 
adviser to the Funds, AWM holds sole voting and investment power over 
0 shares of Common Stock of the Issuer (the ?Shares?) held by CAYMAN 
and 0 Shares held by SSFQP. Prior to February 14, 2015, Austin W. 
Marxe (?Marxe?), David M. Greenhouse (?Greenhouse?) and Adam C. 
Stettner (?Stettner?) reported the Shares held by the Funds on 
Schedule 13G.  Accordingly, reference should be made to Marxe, 
Greenhouse and Stettner (CIK #0001044321) for any filings made prior 
to February 14, 2015, filed with the Securities and Exchange 
Commission relating to the Shares held by each of the Funds.  See 
Items 2 and 4 of this Schedule for additional information.  


Item 1(a).  Name Of Issuer:  Magnetek, Inc.

Item 1(b).  Address of Issuer?s Principal Executive Offices:

N49 W13650 Campbell Drive
Menomonee Falls, Wisconsin 53051

Item 2(a).  Name of Person Filing:

The person filing this report is AWM Investment Company, Inc., 
a Delaware corporation (?AWM?), which is the investment adviser 
to Special Situations Cayman Fund, L.P., a Cayman Islands 
Limited Partnership (?CAYMAN?) and Special Situations Fund III 
QP, L.P., a Delaware limited partnership (?SSFQP?), (CAYMAN and 
SSFQP will hereafter be referred to as the ?Funds?).  The 
principal business of each Fund is to invest in equity and 
equity-related securities and other securities of any kind or 
nature.

Austin W. Marxe (?Marxe?), David M. Greenhouse (?Greenhouse?) 
and Adam C. Stettner (?Stettner?) are members of: SSCayman, 
L.L.C., a Delaware limited liability company (?SSCAY?), the 
general partner of CAYMAN; and MGP Advisers Limited 
Partnership, a Delaware limited partnership (?MGP?), the 
general partner of SSFQP. Marxe, Greenhouse and Stettner are 
also controlling principals of AWM.  

Item 2(b). Address of Principal Business Office or, if None,     
Residence:
The principal business address for AWM is c/o Special 
Situations Funds, 527 Madison Avenue, Suite 2600, New York, NY  
10022.
Item 2(c).  Citizenship: AWM is a Delaware Corporation.
Item 2(d).  Title of Class of Securities: Common Stock, Par 
                                          Value $.01 
Item 2(e).  CUSIP No.:  559424106

Item 3.  If This Statement Is Filed Pursuant to ??240.13d-1(b) or 
240.13d-2(b) or (c), check whether the Person Filing is a:
	     Not Applicable.







Item 4.  Ownership

	(a)	Amount Beneficially Owned:  0**

	(b)	Percent of Class: 	0.0%**

	(c)	Number of Shares as to which the person has:

		(i)	sole power to vote or to direct the vote: 0**

	     (ii)	shared power to vote or to direct the vote: 0**

	    (iii)	sole power to dispose or to direct the disposition of:	
	           0**

	     (iv)	shared power to dispose or to direct the disposition       
	           of:  0**
______________________________________________________________________

** AWM is the investment adviser to each of the Funds. As the 
investment adviser to the Funds, AWM holds sole voting and investment 
power over 0 shares of Common Stock of the Issuer (the ?Shares?) held 
by CAYMAN and 0 Shares held by SSFQP.  Marxe, Greenhouse and Stettner 
are members of: SSCAY, the general partner of CAYMAN and MGP, the 
general partner of SSFQP. Marxe, Greenhouse and Stettner are also 
controlling principals of AWM. Prior to February 14, 2015, Marxe, 
Greenhouse and Stettner reported the Shares held by the Funds on 
Schedule 13G.  Accordingly, reference should be made to Marxe, 
Greenhouse and Stettner (CIK #0001044321) for any filings made prior 
to February 14, 2015 with the Securities and Exchange Commission 
relating to the Shares held by each of the Funds.  

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. _X__

Item 6. Ownership of More Than Five Percent on Behalf of Another 
Person

	Not Applicable.


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 I certify that, to the best of my knowledge and 
belief, the securities referred to above 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 my knowledge and 
belief, I certify that the information set forth in this statement is 
true, complete and correct.


Dated: September 6, 2015



AWM INVESTMENT COMPANY, INC.


By:							
   Name:  David M. Greenhouse
   Title:	Executive Vice President






Attention:  Intentional misstatements or omissions of fact constitute
Federal criminal violations (See 18 U.S.C. 1001) 
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