FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * Avenue Special Situations Fund IV LP   2. Issuer Name and Ticker or Trading Symbol MAGNACHIP SEMICONDUCTOR Corp [MX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O AVENUE CAPITAL MANAGEMENT II, L.P., 399 PARK AVENUE, 6TH FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 05/07/2012 (Street) NEW YORK, NY 10022 4. If Amendment, Date Original Filed(Month/Day/Year) 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 Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock, $0.01 par value 05/07/2012   S   2,251,184 D $ 10.8585 4,275,774 (1) D (2)   Common Stock, $0.01 par value 05/07/2012   S   2,847,584 D $ 10.8585 5,336,837 (1) D (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	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.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Avenue Special Situations Fund IV LP C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR NEW YORK, NY 10022	X	X
Avenue Capital Partners IV, LLC C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR NEW YORK, NY 10022		X
GL Partners IV, LLC C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR NEW YORK, NY 10022		X
Avenue Special Situations Fund V LP C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR NEW YORK, NY 10022	X	X
Avenue Capital Partners V, LLC C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR NEW YORK, NY 10022		X
GL Partners V, LLC C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR NEW YORK, NY 10022		X
Avenue Capital Management II, L.P. C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR NEW YORK, NY 10022		X
Avenue Capital Management II GenPar, LLC C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR NEW YORK, NY 10022		X
LASRY MARC C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR NEW YORK, NY 10022		X

Signatures

Avenue Special Situations Fund IV, L.P. By: Avenue Capital Partners IV, LLC, its General Partner, By: GL Partners IV, LLC, its Managing Member, By: /s/ Eric Ross, attorney-in-fact for Marc Lasry, Managing Member		05/07/2012
**Signature of Reporting Person		Date
Avenue Capital Partners IV, LLC By: GL Partners IV, LLC, its Managing Member, By: /s/ Eric Ross, attorney-in-fact for Marc Lasry, Managing Member		05/07/2012
**Signature of Reporting Person		Date
GL Partners IV, LLC By: /s/ Eric Ross, attorney-in-fact for Marc Lasry, Managing Member		05/07/2012
**Signature of Reporting Person		Date
Avenue Special Situations Fund V, L.P. By: Avenue Capital Partners V, LLC, its General Partner, By: GL Partners V, LLC, its Managing Member, By: /s/ Eric Ross, attorney-in-fact for Marc Lasry, Managing Member		05/07/2012
**Signature of Reporting Person		Date
Avenue Capital Partners V, LLC By: GL Partners V, LLC, its Managing Member, By: /s/ Eric Ross, attorney-in-fact for Marc Lasry, Managing Member		05/07/2012
**Signature of Reporting Person		Date
GL Partners V, LLC By: /s/ Eric Ross, attorney-in-fact for Marc Lasry, Managing Member		05/07/2012
**Signature of Reporting Person		Date
Avenue Capital Management II, L.P. By: Avenue Capital Management II GenPar, LLC, its General Partner, By: /s/ Eric Ross, attorney-in-fact for Marc Lasry, Managing Member		05/07/2012
**Signature of Reporting Person		Date
Avenue Capital Management II GenPar, LLC By: /s/ Eric Ross, attorney-in-fact for Marc Lasry, Managing Member		05/07/2012
**Signature of Reporting Person		Date
/s/ Eric Ross, attorney-in-fact for Marc Lasry		05/07/2012
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(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)	The filing of this Form 4 shall not be construed as an admission that Avenue Capital Partners IV, LLC ("Capital Partners IV"), GL Partners IV, LLC ("GL Partners IV"), Avenue Capital Partners V, LLC ("Capital Partners V"), GL Partners V, LLC ("GL Partners V"), Avenue Capital Management II, L.P. ("Avenue Capital Management"), Avenue Capital Management II GenPar, LLC ("Avenue Capital Management GenPar") or Marc Lasry (collectively, the "Controlling Persons") is or was for the purposes of Section 16(a) of the Securities Exchange Act of 1934, as amended, or otherwise the beneficial owner of any of the Common Stock of the Issuer directly held by Avenue Special Situations Fund IV, L.P. ("Fund IV") and Avenue Special Situations Fund V, L.P. ("Fund V"). Pursuant to Rule 16a-1, the Controlling Persons disclaim such beneficial ownership except to the extent of their pecuniary interest therein.
(2)	After giving effect to the transactions reported herein, Fund IV holds directly 4,275,774 shares of Common Stock of the Issuer. Capital Partners IV serves as the general partner of Fund IV, and GL Partners IV serves as the managing member of Capital Partners IV. Each of Capital Partners IV and GL Partners IV holds indirectly the 4,275,774 shares of Common Stock of the Issuer held directly by Fund IV. Capital Partners IV is entitled to receive a performance-based allocation from Fund IV and GL Partners IV, as the managing member of Capital Partners IV, has an indirect interest in such allocation. Mr. Lasry owns an interest in Capital Partners IV and GL Partners IV and receives a portion of the profits allocation related to Fund IV.
(3)	After giving effect to the transactions reported herein, Fund V holds directly 5,336,837 shares of Common Stock of the Issuer. Capital Partners V serves as the general partner of Fund V, and GL Partners V serves as the managing member of Capital Partners V. Each of Capital Partners V and GL Partners V holds indirectly the 5,336,837 shares of Common Stock of the Issuer held directly by Fund V. Capital Partners V is entitled to receive a performance-based allocation from Fund V and GL Partners V, as the managing member of Capital Partners V, has an indirect interest in such allocation. Mr. Lasry owns an interest in Capital Partners V and GL Partners V and receives a portion of the profits allocation related to Fund V.
Remarks: This Form 4 is being filed by the Reporting Persons jointly with an additional Form 4 dated as of the same date with respect to the Common Stock of the Issuer filed by Avenue Investments, L.P., Avenue-CDP Global Opportunities Fund, L.P., Avenue International Master, L.P. and Marc Lasry due to the limitations on the number of Reporting Persons able to file a single Form 4.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.