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

SCHEDULE 13D
(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
§ 240.13d-2(a)

(Amendment No.  )1

MagnaChip Semiconductor Corporation
(Name of Issuer)

Common Stock, $0.01 par value per share
(Title of Class of Securities)

55933J203
(CUSIP Number)
 
GLENN W. WELLING
ENGAGED CAPITAL, LLC
610 Newport Center Drive, Suite 250
Newport Beach, California 92660
(949) 734-7900
STEVE WOLOSKY, ESQ.
OLSHAN FROME WOLOSKY LLP
Park Avenue Tower
65 East 55th Street
New York, New York 10022
(212) 451-2300 (Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)

July 20, 2015
(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box  ¨ .

Note:  Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits.   See  § 240.13d-7 for other parties to whom copies are to be sent.

_______________
1              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 disclosures provided in a prior cover page.

The information required on 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. 55933J203
 
1	NAME OF REPORTING PERSON
 
Engaged Capital Master Feeder I, LP	 	
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	  (a) o
  (b) o	 	
3	SEC USE ONLY
 	 	
4	SOURCE OF FUNDS
 
WC	 	
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 	¨	 	
6	CITIZENSHIP OR PLACE OF ORGANIZATION
 
CAYMAN ISLANDS	 	
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER
 
902,492	 	
 	8	SHARED VOTING POWER
 
- 0 -	 	 	
 	9	SOLE DISPOSITIVE POWER
 
902,492	 	 	 	
 	10	SHARED DISPOSITIVE POWER
 
- 0 -	 	 	 	
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
902,492	 	 	 	
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 	o	 	 	 	
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
2.6%	 	 	 	
14	TYPE OF REPORTING PERSON
 
PN	 	 	 	

2

 
CUSIP NO. 55933J203
 
1	NAME OF REPORTING PERSON
 
Engaged Capital Master Feeder II, LP	 	
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	  (a) o
  (b) o	 	
3	SEC USE ONLY
 	 	
4	SOURCE OF FUNDS
 
WC	 	
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 	¨	 	
6	CITIZENSHIP OR PLACE OF ORGANIZATION
 
CAYMAN ISLANDS	 	
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER
 
1,614,760	 	
 	8	SHARED VOTING POWER
 
- 0 -	 	 	
 	9	SOLE DISPOSITIVE POWER
 
1,614,760	 	 	 	
 	10	SHARED DISPOSITIVE POWER
 
- 0 -	 	 	 	
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
1,614,760	 	 	 	
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 	o	 	 	 	
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
4.7%	 	 	 	
14	TYPE OF REPORTING PERSON
 
PN	 	 	 	

3

 
CUSIP NO. 55933J203
 
1	NAME OF REPORTING PERSON
 
Engaged Capital I, LP	 	
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	  (a) o
  (b) o	 	
3	SEC USE ONLY
 	 	
4	SOURCE OF FUNDS
 
OO	 	
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 	¨	 	
6	CITIZENSHIP OR PLACE OF ORGANIZATION
 
DELAWARE	 	
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER
 
902,492	 	
 	8	SHARED VOTING POWER
 
- 0 -	 	 	
 	9	SOLE DISPOSITIVE POWER
 
902,492	 	 	 	
 	10	SHARED DISPOSITIVE POWER
 
- 0 -	 	 	 	
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
902,492	 	 	 	
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 	o	 	 	 	
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
2.6%	 	 	 	
14	TYPE OF REPORTING PERSON
 
PN	 	 	 	

4

 
CUSIP NO. 55933J203
 
1	NAME OF REPORTING PERSON
 
Engaged Capital I Offshore, Ltd.	 	
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	  (a) o
  (b) o	 	
3	SEC USE ONLY
 	 	
4	SOURCE OF FUNDS
 
OO	 	
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 	¨	 	
6	CITIZENSHIP OR PLACE OF ORGANIZATION
 
CAYMAN ISLANDS	 	
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER
 
902,492	 	
 	8	SHARED VOTING POWER
 
- 0 -	 	 	
 	9	SOLE DISPOSITIVE POWER
 
902,492	 	 	 	
 	10	SHARED DISPOSITIVE POWER
 
- 0 -	 	 	 	
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
902,492	 	 	 	
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 	o	 	 	 	
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
2.6%	 	 	 	
14	TYPE OF REPORTING PERSON
 
CO	 	 	 	

5

 
CUSIP NO. 55933J203
 
1	NAME OF REPORTING PERSON
 
Engaged Capital II, LP	 	
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	  (a) o
  (b) o	 	
3	SEC USE ONLY
 	 	
4	SOURCE OF FUNDS
 
OO	 	
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 	¨	 	
6	CITIZENSHIP OR PLACE OF ORGANIZATION
 
DELAWARE	 	
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER
 
1,614,760	 	
 	8	SHARED VOTING POWER
 
- 0 -	 	 	
 	9	SOLE DISPOSITIVE POWER
 
1,614,760	 	 	 	
 	10	SHARED DISPOSITIVE POWER
 
- 0 -	 	 	 	
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
1,614,760	 	 	 	
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 	o	 	 	 	
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
4.7%	 	 	 	
14	TYPE OF REPORTING PERSON
 
PN	 	 	 	

6

 
CUSIP NO. 55933J203
 
1	NAME OF REPORTING PERSON
 
Engaged Capital II Offshore Ltd.	 	
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	  (a) o
  (b) o	 	
3	SEC USE ONLY
 	 	
4	SOURCE OF FUNDS
 
OO	 	
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 	¨	 	
6	CITIZENSHIP OR PLACE OF ORGANIZATION
 
CAYMAN ISLANDS	 	
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER
 
1,614,760	 	
 	8	SHARED VOTING POWER
 
- 0 -	 	 	
 	9	SOLE DISPOSITIVE POWER
 
1,614,760	 	 	 	
 	10	SHARED DISPOSITIVE POWER
 
- 0 -	 	 	 	
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
1,614,760	 	 	 	
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 	o	 	 	 	
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
4.7%	 	 	 	
14	TYPE OF REPORTING PERSON
 
CO	 	 	 	

7

 
CUSIP NO. 55933J203
 
1	NAME OF REPORTING PERSON
 
Engaged Capital, LLC	 	
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	  (a) o
  (b) o	 	
3	SEC USE ONLY
 	 	
4	SOURCE OF FUNDS
 
OO	 	
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 	¨	 	
6	CITIZENSHIP OR PLACE OF ORGANIZATION
 
DELAWARE	 	
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER
 
2,517,252	 	
 	8	SHARED VOTING POWER
 
- 0 -	 	 	
 	9	SOLE DISPOSITIVE POWER
 
2,517,252	 	 	 	
 	10	SHARED DISPOSITIVE POWER
 
- 0 -	 	 	 	
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
2,517,252	 	 	 	
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 	o	 	 	 	
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
7.3%	 	 	 	
14	TYPE OF REPORTING PERSON
 
OO	 	 	 	

8

 
CUSIP NO. 55933J203
 
1	NAME OF REPORTING PERSON
 
Engaged Capital Holdings, LLC	 	
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	  (a) o
  (b) o	 	
3	SEC USE ONLY
 	 	
4	SOURCE OF FUNDS
 
OO	 	
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 	¨	 	
6	CITIZENSHIP OR PLACE OF ORGANIZATION
 
DELAWARE	 	
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER
 
2,517,252	 	
 	8	SHARED VOTING POWER
 
- 0 -	 	 	
 	9	SOLE DISPOSITIVE POWER
 
2,517,252	 	 	 	
 	10	SHARED DISPOSITIVE POWER
 
- 0 -	 	 	 	
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
2,517,252	 	 	 	
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 	o	 	 	 	
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
7.3%	 	 	 	
14	TYPE OF REPORTING PERSON
 
OO	 	 	 	

9

 
CUSIP NO. 55933J203
 
1	NAME OF REPORTING PERSON
 
Glenn W. Welling	 	
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	  (a) o
  (b) o	 	
3	SEC USE ONLY
 	 	
4	SOURCE OF FUNDS
 
OO	 	
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 	¨	 	
6	CITIZENSHIP OR PLACE OF ORGANIZATION
 
USA	 	
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER
 
2,517,252	 	
 	8	SHARED VOTING POWER
 
- 0 -	 	 	
 	9	SOLE DISPOSITIVE POWER
 
2,517,252	 	 	 	
 	10	SHARED DISPOSITIVE POWER
 
- 0 -	 	 	 	
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
2,517,252	 	 	 	
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 	o	 	 	 	
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
7.3%	 	 	 	
14	TYPE OF REPORTING PERSON
 
IN	 	 	 	

10

 
CUSIP NO. 55933J203
 
The following constitutes the Schedule 13D filed by the undersigned (the “Schedule 13D”).
 
Item 1.	Security and Issuer.	
 
This statement relates to the Common Stock, $0.01 par value per share (the “Shares”), of MagnaChip Semiconductor Corporation, a Delaware corporation (the “Issuer”).  The address of the principal executive offices of the Issuer is c/o MagnaChip Semiconductor S.A., 1, Allée Scheffer, L-2520, Luxembourg, Grand Duchy of Luxembourg.
 
Item 2.	Identity and Background.	
 
(a)           This statement is filed by:
 
 	(i)	Engaged Capital Master Feeder I, LP, a Cayman Islands exempted limited partnership (“Engaged Capital Master I”), with respect to the Shares directly and beneficially owned by it;	
 
 	(ii)	Engaged Capital Master Feeder II, LP, a Cayman Islands exempted limited partnership (“Engaged Capital Master II”), with respect to the Shares directly and beneficially owned by it;	
 
 	(iii)	Engaged Capital I, LP, a Delaware limited partnership (“Engaged Capital I”), as a feeder fund of Engaged Capital Master I;	
 
 	(iv)	Engaged Capital I Offshore, Ltd., a Cayman Islands exempted company (“Engaged Capital Offshore”), as a feeder fund of Engaged Capital Master I;	
 
 	(v)	Engaged Capital II, LP, a Delaware limited partnership (“Engaged Capital II”), as a feeder fund of Engaged Capital Master II;	
 
 	(vi)	Engaged Capital II Offshore Ltd., a Cayman Islands exempted company (“Engaged Capital Offshore II”), as a feeder fund of Engaged Capital Master II;	
 
 	(vii)	Engaged Capital, LLC, a Delaware limited liability company (“Engaged Capital”), as the general partner and investment advisor of each of Engaged Capital Master I and Engaged Capital Master II;	
 
 	(viii)	Engaged Capital Holdings, LLC, a Delaware limited liability company (“Engaged Holdings”), as the managing member of Engaged Capital; and	
 
 	(ix)	Glenn W. Welling, as the founder and Chief Investment Officer (“CIO”) of Engaged Capital and the sole member of Engaged Holdings.	
 
Each of the foregoing is referred to as a “Reporting Person” and collectively as the “Reporting Persons.”  Each of the Reporting Persons is party to that certain Joint Filing Agreement, as further described in Item 6.  Accordingly, the Reporting Persons are hereby filing a joint Schedule 13D.

11

 
CUSIP NO. 55933J203
 
(b)           The address of the principal office of each of Engaged Capital Master I, Engaged Capital Master II, Engaged Capital Offshore and Engaged Capital Offshore II is c/o Codan Trust Company (Cayman) Ltd., Cricket Square, Hutchins Drive, P.O. Box 2681, Grand Cayman KY1-1111, Cayman Islands.  The address of the principal office of each of Engaged Capital I, Engaged Capital II, Engaged Capital, Engaged Holdings and Mr. Welling is 610 Newport Center Drive, Suite 250, Newport Beach, California 92660. The officers and directors of each of Engaged Capital Offshore and Engaged Capital Offshore II and their principal occupations and business addresses are set forth on Schedule A and are incorporated by reference in this Item 2.
 
(c)           The principal business of each of Engaged Capital Master I and Engaged Capital Master II is investing in securities.  Each of Engaged Capital I and Engaged Capital Offshore is a private investment partnership that serves as a feeder fund of Engaged Capital Master I.  Each of Engaged Capital II and Engaged Capital Offshore II is a private investment partnership that serves as a feeder fund of Engaged Capital Master II.  Engaged Capital is a registered investment advisor and serves as the investment adviser to each of Engaged Capital Master I, Engaged Capital Master II, Engaged Capital I, Engaged Capital Offshore, Engaged Capital II and Engaged Capital Offshore II. Engaged Capital is also the general partner of each of Engaged Capital Master I, Engaged Capital Master II, Engaged Capital I, and Engaged Capital II. Engaged Holdings serves as the managing member of Engaged Capital.  Mr. Welling is the Founder and CIO of Engaged Capital, the sole member of Engaged Holdings and a director of each of Engaged Capital Offshore and Engaged Capital Offshore II.
 
(d)           No Reporting Person, nor any person listed on Schedule A, annexed hereto, has, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).
 
(e)           No Reporting Person, nor any person listed on Schedule A, annexed hereto, has during the last five years, been party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.
 
(f)           Engaged Capital Master I, Engaged Capital Master II, Engaged Capital Offshore and Engaged Capital Offshore II are organized under the laws of the Cayman Islands.  Engaged Capital I, Engaged Capital II, Engaged Capital and Engaged Holdings are organized under the laws of the State of Delaware.  Mr. Welling is a citizen of the United States of America.  The citizenship of the persons listed on Schedule A is set forth therein.
 
Item 3.	Source and Amount of Funds or Other Consideration.	
 
The Shares purchased by each of Engaged Capital Master I and Engaged Capital Master II were purchased with working capital (which may, at any given time, include margin loans made by brokerage firms in the ordinary course of business) in open market purchases, except as otherwise noted, as set forth in Schedule B, which is incorporated by reference herein. The aggregate purchase price of the 902,492 Shares beneficially owned by Engaged Capital Master I is approximately $6,526,450, including brokerage commissions. The aggregate purchase price of the 1,614,760 Shares beneficially owned by Engaged Capital Master II is approximately $11,696,472, including brokerage commissions.

12

 
CUSIP NO. 55933J203
 
Item 4.	Purpose of Transaction.	
 
The Reporting Persons purchased the Shares based on the Reporting Persons’ belief that the Shares, when purchased, were undervalued and represented an attractive investment opportunity.  Depending upon overall market conditions, other investment opportunities available to the Reporting Persons, and the availability of Shares at prices that would make the purchase or sale of Shares desirable, the Reporting Persons may endeavor to increase or decrease their position in the Issuer through, among other things, the purchase or sale of Shares on the open market or in private transactions or otherwise, on such terms and at such times as the Reporting Persons may deem advisable.
 
The Reporting Persons believe that the Issuer’s share price has been negatively impacted by the financial restatement process and, as a result, the Issuer trades at a substantial discount to the value of its underlying assets. The Reporting Persons believe that the Issuer’s core foundry assets and semiconductor products business are capable of significantly improved operational performance and could be attractive to potential strategic acquirers and/or partners.
 
No Reporting Person has any present plan or proposal which would relate to or result in any of the matters set forth in subparagraphs (a) - (j) of Item 4 of Schedule 13D except as set forth herein or such as would occur upon or in connection with completion of, or following, any of the actions discussed herein.  The Reporting Persons intend to review their investment in the Issuer on a continuing basis.  Depending on various factors including, without limitation, the Issuer’s financial position and investment strategy, the price levels of the Shares, conditions in the securities markets and general economic and industry conditions, the Reporting Persons may in the future take such actions with respect to their investment in the Issuer as they deem appropriate including, without limitation, engaging in communications with management and the Board of Directors of the Issuer, engaging in discussions with stockholders of the Issuer and others about the Issuer and the Reporting Persons’ investment, making proposals to the Issuer concerning changes to the capitalization, ownership structure, including a sale of the Issuer as a whole or in parts, board structure (including board composition) or operations of the Issuer, purchasing additional Shares, selling some or all of their Shares, engaging in short selling of or any hedging or similar transaction with respect to the Shares, or changing their intention with respect to any and all matters referred to in Item 4.
 
Item 5.	Interest in Securities of the Issuer.	
 
 (a)           The aggregate percentage of Shares reported owned by each person named herein is based upon 34,561,468 Shares outstanding as of July 17, 2015, which is the total number of Shares outstanding as reported in the Issuer’s Definitive Proxy Statement on Schedule 14A filed with the Securities and Exchange Commission on July 20, 2015.
 
As of the close of business on July 27, 2015, Engaged Capital Master I beneficially owned 902,492 Shares, constituting approximately 2.6% of the Shares outstanding. Each of Engaged Capital I and Engaged Capital Offshore, as feeder funds of Engaged Capital Master I, may be deemed to beneficially own the 902,492 Shares owned by Engaged Capital Master I, constituting approximately 2.6% of the Shares outstanding.
 
As of the close of business on July 27, 2015, Engaged Capital Master II beneficially owned 1,614,760 Shares, constituting approximately 4.7% of the Shares outstanding.  Each of Engaged Capital II and Engaged Capital Offshore II, as feeder funds of Engaged Capital Master II, may be deemed to beneficially own the 1,614,760 Shares owned by Engaged Capital Master II, constituting approximately 4.7% of the Shares outstanding.

13

 
CUSIP NO. 55933J203
 
Engaged Capital, as the general partner and investment adviser of Engaged Capital Master I and Engaged Capital Master II, may be deemed to beneficially own the 2,517,252 Shares owned in the aggregate by Engaged Capital Master I and Engaged Capital Master II, constituting approximately 7.3% of the Shares outstanding.  Engaged Holdings, as the managing member of Engaged Capital, may be deemed to beneficially own the 2,517,252 Shares owned in the aggregate by Engaged Capital Master I and Engaged Capital Master II, constituting approximately 7.3% of the Shares outstanding.  Mr. Welling, as the founder and CIO of Engaged Capital and sole member of Engaged Holdings, may be deemed to beneficially own the 2,517,252 Shares owned in the aggregate by Engaged Capital Master I and Engaged Capital Master II, constituting approximately 7.3% of the Shares outstanding.
 
Each Reporting Person, as a member of a “group” with the other Reporting Persons for the purposes of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended, may be deemed the beneficial owner of the Shares directly owned by the other Reporting Persons.  Each Reporting Person disclaims beneficial ownership of such Shares except to the extent of his or its pecuniary interest therein.
 
(b)           By virtue of their respective positions with Engaged Capital Master I, each of Engaged Capital I, Engaged Capital Offshore, Engaged Capital, Engaged Holdings and Mr. Welling may be deemed to have sole power to vote and dispose of the Shares reported owned by Engaged Capital Master I.
 
By virtue of their respective positions with Engaged Capital Master II, each of Engaged Capital II, Engaged Capital Offshore II, Engaged Capital, Engaged Holdings and Mr. Welling may be deemed to have sole power to vote and dispose of the Shares reported owned by Engaged Capital Master II.
 
(c)           Schedule B annexed hereto lists all transactions in securities of the Issuer by the Reporting Persons during the past 60 days.
 
(d)           No person other than the Reporting Persons is known to have the right to receive, or the power to direct the receipt of dividends from, or proceeds from the sale of, the Shares.
 
 	(e)	Not applicable.	
 
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.	
 
On July 28, 2015 the Reporting Persons entered into a Joint Filing Agreement in which the Reporting Persons agreed to the joint filing on behalf of each of them of statements on Schedule 13D with respect to the securities of the Issuer to the extent required by applicable law.  The Joint Filing Agreement is attached hereto as Exhibit 99.1 and is incorporated herein by reference.
 
Other than as described herein, there are no contracts, arrangements, understandings or relationships among the Reporting Persons, or between the Reporting Persons and any other person, with respect to the securities of the Issuer.
 
Item 7.	Material to be Filed as Exhibits.	
 
 	99.1	Joint Filing Agreement by and among Engaged Capital Master Feeder I, LP, Engaged Capital Master Feeder II, LP, Engaged Capital I, LP, Engaged Capital I Offshore, Ltd., Engaged Capital II, LP, Engaged Capital II Offshore Ltd., Engaged Capital, LLC, Engaged Capital Holdings, LLC and Glenn W. Welling, dated July 28, 2015.	

14

 
CUSIP NO. 55933J203
 
SIGNATURES
 
After reasonable inquiry and to the best of his knowledge and belief, the undersigned certifies that the information set forth in this statement is true, complete and correct.
 
Dated:  July 28, 2015

 	Engaged Capital Master Feeder I, LP	
 	 	 	
 	By:	Engaged Capital, LLC
General Partner	
 	 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Founder and Chief Investment Officer	

 	Engaged Capital Master Feeder II, LP	
 	 	
 	By:	Engaged Capital, LLC
General Partner	
 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Founder and Chief Investment Officer	

 	Engaged Capital I, LP	
 	 	 	
 	By:	Engaged Capital, LLC
General Partner	
 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Founder and Chief Investment Officer	

 	Engaged Capital I Offshore, Ltd.	
 	 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Director	

15

 
CUSIP NO. 55933J203
 
 	Engaged Capital II, LP	
 	 	 	
 	By:	Engaged Capital, LLC
General Partner	
 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Founder and Chief Investment Officer	

 	Engaged Capital II Offshore Ltd.	
 	 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Director	

 	Engaged Capital, LLC	
 	 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Founder and Chief Investment Officer	

 	Engaged Capital Holdings, LLC	
 	 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Sole Member	

 	/s/ Glenn W. Welling	
 	Glenn W. Welling	

16

 
CUSIP NO. 55933J203
 
SCHEDULE A
 
Directors and Officers of Engaged Capital I Offshore, Ltd. and Engaged Capital II Offshore Ltd.
 
Name and Position	Principal Occupation	Principal Business Address	Citizenship	
 	 	 	 	
Glenn W. Welling
Director*	 	 	 	
 	 	 	 	
Mark John Cook
Director	Company Director	3rd Floor, Harbour Centre
George Town, Grand Cayman
Cayman Islands	Australia	
 	 	 	 	
Mark Victor Murray
Director	Company Director	2F Landmark Square
64 Earth Close
Seven Mile Beach
Grand Cayman
Cayman Islands	United Kingdom & British Overseas Territory Citizen (Cayman Islands)	

_______________  
*Mr. Welling is a Reporting Person and, as such, the information with respect to Mr. Welling called for by Item 2 of Schedule 13D is set forth therein.

 

 
CUSIP NO. 55933J203
 
SCHEDULE B
 
Transactions in Securities of the Issuer During the Past Sixty Days

Nature of the Transaction	Securities
Purchased/(Sold)	Price Per
Share($)	Date of
Purchase / Sale	

ENGAGED CAPITAL MASTER FEEDER I, LP

Purchase of Common Stock	29,542	7.9350	07/13/2015	
Purchase of Common Stock	1,350	7.9705	07/14/2015	
Purchase of Common Stock	37,000	8.5876	07/15/2015	
Purchase of Common Stock	34,630	8.4505	07/20/2015	
Purchase of Common Stock	17,535	8.3802	07/21/2015	
Purchase of Common Stock	13,145	8.3867	07/21/2015	
Purchase of Common Stock	16,550	8.3299	07/22/2015	
Purchase of Common Stock	25,970	8.4557	07/22/2015	
Purchase of Common Stock	13,250	8.6484	07/23/2015	
Purchase of Common Stock	13,885	8.5941	07/23/2015	
Purchase of Common Stock	35,825	8.9131	07/24/2015	
Purchase of Common Stock	16,225	8.6745	07/24/2015	
Purchase of Common Stock	101,204	8.9333	07/27/2015	
Purchase of Common Stock	7,159	8.5916	07/27/2015	
Purchase of Common Stock	374	8.9828	07/27/2015	

ENGAGED CAPITAL MASTER FEEDER II, LP

Purchase of Common Stock	24,698	7.1347	07/08/2015	
Purchase of Common Stock	57,300	7.9350	07/13/2015	
Purchase of Common Stock	8,650	7.9705	07/14/2015	
Purchase of Common Stock	62,000	8.5876	07/15/2015	
Purchase of Common Stock	61,070	8.4505	07/20/2015	
Purchase of Common Stock	22,855	8.3867	07/21/2015	
Purchase of Common Stock	31,582	8.3802	07/21/2015	
Purchase of Common Stock	46,030	8.4557	07/22/2015	
Purchase of Common Stock	11,450	8.3299	07/22/2015	
Purchase of Common Stock	24,900	8.5941	07/23/2015	
Purchase of Common Stock	41,750	8.6484	07/23/2015	
Purchase of Common Stock	64,175	8.9131	07/24/2015	
Purchase of Common Stock	27,750	8.6745	07/24/2015	
Purchase of Common Stock	177,750	8.9333	07/27/2015	
Purchase of Common Stock	672	8.9828	07/27/2015	
Purchase of Common Stock	12,841	8.5916	07/27/2015	

Exhibit 99.1
 
JOINT FILING AGREEMENT
 
In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, $0.01 par value, of MagnaChip Semiconductor Corporation, a Delaware corporation. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.
 
Dated:  July 28, 2015
 
 	Engaged Capital Master Feeder I, LP	
 	 	 	
 	By:	Engaged Capital, LLC
General Partner	
 	 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Founder and Chief Investment Officer	

 	Engaged Capital Master Feeder II, LP	
 	 	
 	By:	Engaged Capital, LLC
General Partner	
 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Founder and Chief Investment Officer	

 	Engaged Capital I, LP	
 	 	 	
 	By:	Engaged Capital, LLC
General Partner	
 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Founder and Chief Investment Officer	

 	Engaged Capital I Offshore, Ltd.	
 	 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Director	

 

 
 
 	Engaged Capital II, LP	
 	 	 	
 	By:	Engaged Capital, LLC
General Partner	
 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Founder and Chief Investment Officer	

 	Engaged Capital II Offshore Ltd.	
 	 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Director	

 	Engaged Capital, LLC	
 	 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Founder and Chief Investment Officer	

 	Engaged Capital Holdings, LLC	
 	 	 	
 	By:	/s/ Glenn W. Welling	
 	 	Name:	Glenn W. Welling	
 	 	Title:	Sole Member	

 	/s/ Glenn W. Welling	
 	Glenn W. Welling