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

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(Print or Type Responses)

1. Name and Address of Reporting Person * BALDWIN JOHN T   2. Issuer Name and Ticker or Trading Symbol METALS USA HOLDINGS CORP. [MUSA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O METALS USA HOLDINGS CORP., 2400 E. COMMERCIAL BLVD., SUITE 905 3. Date of Earliest Transaction (Month/Day/Year) 04/12/2013 (Street) FORT LAUDERDALE, FL 33308 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ 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 04/12/2013   D   8,400 D $ 20.65 8,400 (1) D

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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

Stock Option (Right to Buy)

$ 2.3

04/12/2013

D

69,724

(2)

11/30/2015

Common Stock

69,724

$ 18.35

0

D

Stock Option (Right to Buy)

$ 13.17

04/12/2013

D

15,000

(2)

09/13/2020

Common Stock

15,000

$ 7.48

0

D

Stock Option (Right to Buy)

$ 11.25

04/12/2013

D

10,000

(2)

01/01/2022

Common Stock

10,000

$ 9.4

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BALDWIN JOHN T C/O METALS USA HOLDINGS CORP. 2400 E. COMMERCIAL BLVD., SUITE 905 FORT LAUDERDALE, FL 33308	X

Signatures

/s/ William A. Smith II, Attorney-in-Fact		04/15/2013
**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)	Pursuant to the terms of the Agreement and Plan of Merger, dated as of February 6, 2013, by and among Reliance Steel & Aluminum Co. ("Reliance"), Metals USA Holdings Corp. ("Metals USA") and RSAC Acquisition Corp., a wholly-owned subsidiary of Reliance (the "Merger Agreement"), each share of Metals USA common stock owned by the reporting person immediately prior to the effective time of the Merger (as defined in the Merger Agreement) converted at the effective time into the right to receive $20.65 in cash.
(2)	Pursuant to the terms of the Merger Agreement, each option to purchase Metals USA common stock owned by the reporting person, whether vested or unvested, that was outstanding immediately prior to the effective time of the Merger converted into the right to receive an amount in cash equal to the product of the number of shares of Metals USA common stock subject to the option and the excess, if any, of $20.65 over the exercise price per share of such option, less any required withholding taxes.

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