Ownership Submission
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 *
PSAROS MICHAEL G
   2. Issuer Name and Ticker or Trading Symbol
GLOBAL BRASS & COPPER HOLDINGS, INC. [BRSS] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
Chairman of Board of Directors
(Last)
(First)
(Middle)
C/O GLOBAL BRASS & COPPER HOLDINGS, INC., 475 N. MARTINGALE RD., SUITE 1050		 3. Date of Earliest Transaction (Month/Day/Year)
05/29/2013
(Street)

SCHAUMBURG, IL 60173		 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, par value $0.01 per share 05/29/2013   S   8,050,000 D $ 10.23 13,060,000 (1) I See Footnotes (2) (3)

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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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
PSAROS MICHAEL G
C/O GLOBAL BRASS & COPPER HOLDINGS, INC.
475 N. MARTINGALE RD., SUITE 1050
SCHAUMBURG, IL 60173		   X     Chairman of Board of Directors

Signatures

 /s/ Scott B. Hamilton, Attorney-in-Fact   05/30/2013
**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) The shares reported on this Form 4 reflect the 211,100-to-1 stock split effected immediately prior to the closing of the initial public offering of Global Brass and Copper Holdings, Inc.
(2) Halkos Holdings, LLC is the sole shareholder of Global Brass and Copper Holdings, Inc. KPS Special Situations Fund II, L.P., KPS Special Situations Fund II (A), L.P., KPS Special Situations Fund III, LP and KPS Special Situations Fund III (A), L.P. are collectively majority members of Halkos Holdings, LLC. KPS Investors III, Ltd. is the general partner of KPS Special Situations Fund III (A), L.P. and KPS Capital Partners, LLC is the controlling shareholder of KPS Investors III, Ltd. KPS Investors III, L.P. is the general partner of KPS Special Situations Fund III, L.P. and KPS Capital Partners, LLC is the general partner of KPS Investors III, L.P. KPS Investors II, L.P. is the general partner of KPS Special Situation Fund II, L.P. and KPS Special Situations Fund II (A), L.P. KPS Investors II GP, LLC is the general partner of KPS Investors II, L.P. The reporting person holds a non-controlling interest in KPS Investors II GP, LLC and KPS Capital Partners, LLC.
(3) The reporting person disclaims beneficial ownership of any shares of Global Brass and Copper Holdings, Inc. that may be held by Halkos Holdings, LLC, KPS Capital Partners, LLC and its affiliates or KPS Investors II GP, LLC and its affiliates. Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), this filing shall not be deemed an admission that the reporting person is, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owner of any equity securities of the Issuer for purposes of Section 16 of the Exchange Act except to the extent of any pecuniary interest therein.
 
Remarks:
Scott B. Hamilton is General Counsel and Corporate Secretary of Global Brass and Copper Holdings, Inc.

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