SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Avenue Special Situations Fund IV LP (Last) (First) (Middle) C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)	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)
	3. Date of Earliest Transaction (Month/Day/Year) 05/07/2012
	4. If Amendment, Date of 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

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)

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 Securities Underlying Derivative Security (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: 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

1. Name and Address of Reporting Person* Avenue Special Situations Fund IV LP (Last) (First) (Middle) C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)

1. Name and Address of Reporting Person* Avenue Capital Partners IV, LLC (Last) (First) (Middle) C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)

1. Name and Address of Reporting Person* GL Partners IV, LLC (Last) (First) (Middle) C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)

1. Name and Address of Reporting Person* Avenue Special Situations Fund V LP (Last) (First) (Middle) C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)

1. Name and Address of Reporting Person* Avenue Capital Partners V, LLC (Last) (First) (Middle) C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)

1. Name and Address of Reporting Person* GL Partners V, LLC (Last) (First) (Middle) C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)

1. Name and Address of Reporting Person* Avenue Capital Management II, L.P. (Last) (First) (Middle) C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)

1. Name and Address of Reporting Person* Avenue Capital Management II GenPar, LLC (Last) (First) (Middle) C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)

1. Name and Address of Reporting Person* LASRY MARC (Last) (First) (Middle) C/O AVENUE CAPITAL MANAGEMENT II, L.P. 399 PARK AVENUE, 6TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)

Explanation of Responses:

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.

	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
	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
	GL Partners IV, LLC By: /s/ Eric Ross, attorney-in-fact for Marc Lasry, Managing Member	05/07/2012
	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
	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
	GL Partners V, LLC By: /s/ Eric Ross, attorney-in-fact for Marc Lasry, Managing Member	05/07/2012
	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
	Avenue Capital Management II GenPar, LLC By: /s/ Eric Ross, attorney-in-fact for Marc Lasry, Managing Member	05/07/2012
	/s/ Eric Ross, attorney-in-fact for Marc Lasry	05/07/2012
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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 Number.