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* DAVIDSON KEMPNER PARTNERS (Last) (First) (Middle) C/O MHD MANAGEMENT CO. 520 MADISON AVENUE, 30TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol BMC STOCK HOLDINGS, INC. [ STCK ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 08/10/2016
	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, par value $0.01 ("Common Stock")	08/10/2016		S		1,400,000	D	$19.8	7,913,983	I	See footnotes(1)(2)(3)(4)(5)(6)

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* DAVIDSON KEMPNER PARTNERS (Last) (First) (Middle) C/O MHD MANAGEMENT CO. 520 MADISON AVENUE, 30TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* M.H. DAVIDSON & CO. (Last) (First) (Middle) C/O M.H. DAVIDSON & CO. GP, L.L.C. 520 MADISON AVENUE, 30TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* DAVIDSON KEMPNER INSTITUTIONAL PARTNERS, L.P. (Last) (First) (Middle) C/O DAVIDSON KEMPNER ADVISERS INC. 520 MADISON AVENUE, 30TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* DAVIDSON KEMPNER INTERNATIONAL, LTD. (Last) (First) (Middle) C/O OFFSHORE INCORPORATION LTD, OFFSHORE INCORPORATION CENTRE, POBOX 957, RD TOWN (Street) TORTOLA D8 00000 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* DAVIDSON KEMPNER DISTRESSED OPPORTUNITIES FUND LP (Last) (First) (Middle) C/O DK GROUP LLC 520 MADISON AVENUE, 30TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* DAVIDSON KEMPNER DISTRESSED OPPORTUNITIES INTERNATIONAL LTD. (Last) (First) (Middle) C/O WALKERS CORPORATE LTD. CAYMAN CORP CENTRE, 27 HOSPITAL RD (Street) GEORGE TOWN E9 KY1-9008 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* DAVIDSON KEMPNER LONG-TERM DISTRESSED OPPORTUNITIES FUND LP (Last) (First) (Middle) C/O DK LONG-TERM DISTRESSED OPPS GP LLC 520 MADISON AVENUE, 30TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* DAVIDSON KEMPNER LONG-TERM DISTRESSED OPPORTUNITIES FUND II LP (Last) (First) (Middle) DK LONG-TERM DISTRESSED OPPS GP II LLC 520 MADISON AVENUE, 30TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* DAVIDSON KEMPNER LONG-TERM DISTRESSED OPPORTUNTIES INTERNATIONAL MASTER FUND II LP (Last) (First) (Middle) DK LONG-TERM DISTRESSED OPPS GP II LLC 520 MADISON AVENUE, 30TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* DAVIDSON KEMPNER LONG-TERM DISTRESSED OPPORTUNITIES INTERNATIONAL MASTER FUND LP (Last) (First) (Middle) C/O DK LONG-TERM DISTRESSED OPPS GP LLC 520 MADISON AVENUE, 30TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. The securities to which this filing relates are held directly by (i) M. H. Davidson & Co., a New York limited partnership ("CO"), (ii) Davidson Kempner Partners, a New York limited partnership ("DKP"), (iii) Davidson Kempner Institutional Partners, L.P., a Delaware limited partnership ("DKIP"), (iv) Davidson Kempner International, Ltd., a British Virgin Islands business company ("DKIL"), (v) Davidson Kempner Distressed Opportunities Fund LP, a Delaware limited partnership ("DKDOF"), (vi) Davidson Kempner Distressed Opportunities International Ltd., a Cayman Islands exempted company ("DKDOI"), (vii) Davidson Kempner Long-Term Distressed Opportunities Fund LP, a Delaware limited partnership ("DKLTDO"), (continued in footnote (2))

2. (continued from footnote (1)) (viii) Davidson Kempner Long-Term Distressed Opportunities International Master Fund LP, a Cayman Islands exempted limited partnership ("DKLTDI"), (ix) Davidson Kempner Long-Term Distressed Opportunities Fund II LP, a Delaware limited partnership ("DKLTDO II") and (x) Davidson Kempner Long-Term Distressed Opportunities International Master Fund II LP, a Cayman Islands exempted limited partnership ("DKLTDI II").

3. M.H. Davidson & Co. GP, L.L.C., a Delaware limited liability company, is the general partner of CO. MHD Management Co., a New York limited partnership ("MHD"), is the general partner of DKP and MHD Management Co. GP, L.L.C., a Delaware limited liability company is the general partner of MHD. Davidson Kempner Advisers Inc., a New York corporation, is the general partner of DKIP. DK Group LLC, a Delaware limited liability company, is the general partner of DKDOF. DK Management Partners LP, a Delaware limited partnership, is the investment manager of DKDOI. Davidson Kempner Long-Term Distressed Opportunities GP LLC, a Delaware limited liability company, is the general partner of DKLTDO and DKLTDI. Davidson Kempner Long-Term Distressed Opportunities GP II LLC, a Delaware limited liability company, is the general partner of DKLTDO II and DKLTDI II.

4. Davidson Kempner Capital Management LP, a Delaware limited partnership ("DKCM") and a registered investment adviser with the U.S. Securities and Exchange Commission, acts as investment manager to each of CO, DKP, DKIP, DKIL, DKDOF, DKDOI, DKLTDO, DKLTDI, DKLTDO II and DKLTDI II either directly or by virtue of a subadvisory agreement with the investment manager of the relevant fund. DKCM GP LLC, a Delaware limited liability company, is the general partner of DKCM.

5. The managing members of DKCM are Thomas L. Kempner, Jr., Timothy I. Levart, Robert J. Brivio, Jr., Eric P. Epstein, Anthony A. Yoseloff, Avram Z. Friedman, Conor Bastable, Morgan P. Blackwell, Shulamit Leviant, Patrick W. Dennis and Gabriel T. Schwartz. Messrs. Thomas L. Kempner, Jr., Anthony A. Yoseloff, Conor Bastable and Avram Z. Friedman through DKCM, are responsible for the voting and investment decisions relating to the securities held by CO, DKP, DKIP, DKIL, DKDOF, DKDOI, DKLTDO, DKLTDI, DKLTDO II and DKLTDI II reported herein.

6. The filing of this statement shall not be deemed an admission that any of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its or his pecuniary interest therein.

Remarks:

To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the first of two identical reports relating to the same transaction being filed with the Securities and Exchange Commission.

	/s/ Davidson Kempner Partners, By: MHD Management Co., its general partner, By: MHD Management Co. GP, L.L.C., its general partner, By: Thomas L. Kempner, Jr., its Executive Managing Member	08/12/2016
	/s/ M.H. Davidson & Co., By: M.H. Davidson & Co. GP, L.L.C., its general partner, By: Thomas L. Kempner, Jr. its Executive Managing Member	08/12/2016
	/s/ Davidson Kempner Institutional Partners, L.P., By Davidson Kempner Advisers Inc., its general partner, By: Thomas L. Kempner, Jr., its President	08/12/2016
	/s/ Davidson Kempner International, Ltd., By: Davidson Kempner Capital Management LP, its investment manager, By: Thomas L. Kempner, Jr., its Executive Managing Member	08/12/2016
	/s/ Davidson Kempner Distressed Opportunities Fund LP, By: DK Group LLC, its general partner, By: Thomas L. Kempner, Jr., its Executive Managing Member	08/12/2016
	/s/ Davidson Kempner Distressed Opportunities International Ltd., By: DK Management Partners LP, its investment manager, By: Thomas L. Kempner, Jr., its Limited Partner	08/12/2016
	/s/ Davidson Kempner Long-Term Distressed Opportunities Fund LP, By: Davidson Kempner Long-Term Distressed Opportunities GP LLC, its general partner, By: Thomas L. Kempner, Jr., its Executive Managing Member	08/12/2016
	/s/ Davidson Kempner Long-Term Distressed Opportunities International Master Fund LP, By: Davidson Kempner Long-Term Distressed Opportunities GP LLC, its general partner, By: Thomas L. Kempner, Jr., its Executive Managing Member	08/12/2016
	/s/ Davidson Kempner Long-Term Distressed Opportunities Fund II LP, By: Davidson Kempner Long-Term Distressed Opportunities GP II LLC, its general partner, By: Thomas L. Kempner, Jr., its Executive Managing Member	08/12/2016
	/s/ Davidson Kempner Long-Term Distressed Opportunities International Master Fund II LP, By: Davidson Kempner Long-Term Distressed Opportunities GP II LLC, its general partner, By: Thomas L. Kempner, Jr., its Executive Managing Member	08/12/2016
	** Signature of Reporting Person	Date
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