Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Engaged Capital LLC
2. Date of Event Requiring Statement (Month/Day/Year)
03/11/2016
3. Issuer Name and Ticker or Trading Symbol
MAGNACHIP SEMICONDUCTOR Corp [MX]
(Last)
(First)
(Middle)
610 NEWPORT CENTER DRIVE, SUITE 250
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEWPORT BEACH, CA 92660
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock (1) 1,017,209
I
By: Engaged Capital Master Feeder I, LP (2)
Common Stock (1) 2,435,765
I
By: Engaged Capital Master Feeder II, LP (3)
Common Stock (1) 400,000
I
By: Managed Account of Engaged Capital, LLC (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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 control number.

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Engaged Capital LLC
610 NEWPORT CENTER DRIVE
SUITE 250
NEWPORT BEACH, CA 92660
    X    
Welling Glenn W.
610 NEWPORT CENTER DRIVE
SUITE 250
NEWPORT BEACH, CA 92660
    X    
Engaged Capital Holdings, LLC
610 NEWPORT CENTER DRIVE
SUITE 250
NEWPORT BEACH, CA 92660
    X    
Engaged Capital Master Feeder I, LP
CRICKET SQUARE, HUTCHINS DRIVE
P.O. BOX 2681
GRAND CAYMAN, E9 KY1-1111
      See Footnote 1
ENGAGED CAPITAL I LP
610 NEWPORT CENTER DRIVE
SUITE 250
NEWPORT BEACH, CA 92660
      See Footnote 1
Engaged Capital I Offshore Ltd
610 NEWPORT CENTER DRIVE
SUITE 250
NEWPORT BEACH, CA 92660
      See Footnote 1
Engaged Capital Master Feeder II, LP
CRICKET SQUARE, HUTCHINS DRIVE
P.O. BOX 2681
GRAND CAYMAN, E9 KY1-1111
      See Footnote 1
ENGAGED CAPITAL II LP
610 NEWPORT CENTER DRIVE
SUITE 250
NEWPORT BEACH, CA 92660
      See Footnote 1
Engaged Capital II Offshore, Ltd.
610 NEWPORT CENTER DRIVE
SUITE 250
NEWPORT BEACH, CA 92660
      See Footnote 1

Signatures

Engaged Capital, LLC; By: /s/ Glenn W. Welling, Authorized Signatory 03/14/2016
**Signature of Reporting Person Date

/s/ Glenn W. Welling 03/14/2016
**Signature of Reporting Person Date

Engaged Capital Holdings, LLC; By: /s/ Glenn W. Welling, Authorized Signatory 03/14/2016
**Signature of Reporting Person Date

Engaged Capital Master Feeder I, LP; By: Engaged Capital, LLC; By: /s/ Glenn W. Welling, Authorized Signatory 03/14/2016
**Signature of Reporting Person Date

Engaged Capital I, LP; By: Engaged Capital, LLC; By: /s/ Glenn W. Welling, Authorized Signatory 03/14/2016
**Signature of Reporting Person Date

Engaged Capital I Offshore, Ltd.; By: /s/ Glenn W. Welling, Director 03/14/2016
**Signature of Reporting Person Date

Engaged Capital Master Feeder II, LP; By: Engaged Capital, LLC; By: /s/ Glenn W. Welling, Authorized Signatory 03/14/2016
**Signature of Reporting Person Date

Engaged Capital II, LP; By: Engaged Capital, LLC; By: /s/ Glenn W. Welling, Authorized Signatory 03/14/2016
**Signature of Reporting Person Date

Engaged Capital II Offshore Ltd.; By: /s/ Glenn W. Welling, Director 03/14/2016
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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).
(1) This Form 3 is filed jointly by Engaged Capital Master Feeder I, LP ("Engaged Capital Master I"), Engaged Capital Master Feeder II, LP ("Engaged Capital Master II"), Engaged Capital I, LP ("Engaged Capital I"), Engaged Capital I Offshore, Ltd. ("Engaged Capital Offshore"), Engaged Capital II, LP ("Engaged Capital II"), Engaged Capital II Offshore Ltd. ("Engaged Capital Offshore II"), Engaged Capital, LLC ("Engaged Capital"), Engaged Capital Holdings, LLC ("Engaged Holdings") and Glenn W. Welling (collectively, the "Reporting Persons"). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that collectively beneficially owns more than 10% of the Issuer's outstanding shares of Common Stock. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein.
(2) Shares owned directly by Engaged Capital Master I. As feeder funds of Engaged Capital Master I, each of Engaged Capital I and Engaged Capital Offshore may be deemed to beneficially own the shares owned directly by Engaged Capital Master I. As the general partner and investment adviser of Engaged Capital Master I, Engaged Capital may be deemed to beneficially own the shares owned directly by Engaged Capital Master I. Engaged Holdings, as the managing member of Engaged Capital, may be deemed to beneficially own the shares owned directly by Engaged Capital Master I. Mr. Welling, as the Founder and Chief Investment Officer of Engaged Capital and sole member of Engaged Holdings, may be deemed to beneficially own the shares owned directly by Engaged Capital Master I.
(3) Shares owned directly by Engaged Capital Master II. As feeder funds of Engaged Capital Master II, each of Engaged Capital II and Engaged Capital Offshore II may be deemed to beneficially own the shares owned directly by Engaged Capital Master II. As the general partner and investment adviser of Engaged Capital Master II, Engaged Capital may be deemed to beneficially own the shares owned directly by Engaged Capital Master II. Engaged Holdings, as the managing member of Engaged Capital, may be deemed to beneficially own the shares owned directly by Engaged Capital Master II. Mr. Welling, as the Founder and Chief Investment Officer of Engaged Capital and sole member of Engaged Holdings, may be deemed to beneficially own the shares owned directly by Engaged Capital Master II.
(4) Shares held in an account separately managed by Engaged Capital (the "Engaged Capital Account"). Engaged Capital, as the investment adviser of the Engaged Capital Account, may be deemed to beneficially own the shares held in the Engaged Capital Account. Engaged Holdings, as the managing member of Engaged Capital, may be deemed to beneficially own the shares held in the Engaged Capital Account. Mr. Welling, as the Founder and Chief Investment Officer of Engaged Capital and sole member of Engaged Holdings, may be deemed to beneficially own the shares held in the Engaged Capital Account.

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