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* Holt Matthew S. (Last) (First) (Middle) C/O NEW MOUNTAIN CAPITAL, L.L.C. 787 SEVENTH AVENUE, 49TH FLOOR (Street) NEW YORK NY 10019 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Bellerophon Therapeutics, Inc. [ BLPH ]	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) 02/12/2015
	4. If Amendment, Date of 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

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	02/12/2015		D		460,144(1)	D	(1)	3,329,575	I	See footnotes(2)(3)
Common Stock	02/12/2015		A		460,144(1)	A	(1)	3,789,719	I	See footnotes(4)(5)
Common Stock	02/19/2015		P		1,070,166	A	$12	4,859,885	I	See footnotes(6)(7)

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

Explanation of Responses:

1. In connection with the Issuer's conversion from a limited liability company to a corporation, on February 12, 2015, pursuant to an Agreement and Plan of Merger among the Issuer, New Mountain Partners II (AIV-B), L.P., New Mountain Partners II Special (AIV-A), L.P. and certain other entities affiliated with certain other of the Issuer's principal stockholders, New Mountain Partners II Special (AIV-A), L.P. merged with and into the Issuer and the shares of Common Stock held by New Mountain Partners II Special (AIV-A), L.P. immediately prior to the merger were cancelled. In exchange therefor, New Mountain Partners II (AIV-B), L.P. received, for no additional consideration, a number of shares of Common Stock equal to the number of shares of Common Stock held by New Mountain Partners II Special (AIV-A), L.P. immediately prior to the merger.

2. Consists of 270,569 shares held by Allegheny New Mountain Partners, L.P., 62,512 shares held by New Mountain Affiliated Investors II, L.P., and 2,996,494 shares held by New Mountain Partners II (AIV-A), L.P. (such holders collectively, the "NMP Entities"). The general partner of each of the NMP Entities is New Mountain Investments II, L.L.C. and the manager of each of the NMP Entities is New Mountain Capital L.L.C. Steven Klinsky is the managing member of New Mountain Investments II, L.L.C. Matthew Holt is a member of New Mountain Investments II, L.L.C. New Mountain Investments II, L.L.C. has decision-making power over the disposition and voting of shares of portfolio investments of each of the NMP Entities. New Mountain Capital, L.L.C. also has voting power over the shares of portfolio investments of the NMP Entities in its role as the investment advisor.

3. New Mountain Capital, L.L.C. is a wholly-owned subsidiary of New Mountain Capital Group, L.L.C. New Mountain Capital Group, L.L.C. is 100% owned by Steven Klinsky. Since New Mountain Investments II, L.L.C. has decision-making power over the NMP Entities, Mr. Klinsky may be deemed to beneficially own the shares that the NMP Entities hold of record or may be deemed to beneficially own. Mr. Klinsky, Adam Weinstein, a director of the Issuer and a member of New Mountain Investments II, L.L.C., Mr. Holt, New Mountain Investments II, L.L.C. and New Mountain Capital, L.L.C. disclaim beneficial ownership over the shares held by the NMP Entities, except to the extent of their pecuniary interest therein.

4. Consists of 270,569 shares held by Allegheny New Mountain Partners, L.P., 62,512 shares held by New Mountain Affiliated Investors II, L.P., 2,996,494 shares held by New Mountain Partners II (AIV-A), L.P. and 460,144 shares held by New Mountain Partners II (AIV-B), L.P. (such holders collectively, the "New Mountain Entities"). The general partner of each of the New Mountain Entities is New Mountain Investments II, L.L.C. and the manager of each of the New Mountain Entities is New Mountain Capital L.L.C. Steven Klinsky is the managing member of New Mountain Investments II, L.L.C. Matthew Holt is a member of New Mountain Investments II, L.L.C. New Mountain Investments II, L.L.C. has decision-making power over the disposition and voting of shares of portfolio investments of each of the New Mountain Entities. New Mountain Capital, L.L.C. also has voting power over the shares of portfolio investments of the New Mountain Entities in its role as the investment advisor.

5. New Mountain Capital, L.L.C. is a wholly-owned subsidiary of New Mountain Capital Group, L.L.C. New Mountain Capital Group, L.L.C. is 100% owned by Steven Klinsky. Since New Mountain Investments II, L.L.C. has decision-making power over the New Mountain Entities, Mr. Klinsky may be deemed to beneficially own the shares that the New Mountain Entities hold of record or may be deemed to beneficially own. Mr. Klinsky, Adam Weinstein, a director of the Issuer and a member of New Mountain Investments II, L.L.C., Mr. Holt, New Mountain Investments II, L.L.C. and New Mountain Capital, L.L.C. disclaim beneficial ownership over the shares held by the New Mountain Entities, except to the extent of their pecuniary interest therein.

6. Consists of 346,974 shares held by Allegheny New Mountain Partners, L.P., 80,165 shares held by New Mountain Affiliated Investors II, L.P., 3,842,663 shares held by New Mountain Partners II (AIV-A), L.P. and 590,083 shares held by New Mountain Partners II (AIV-B), L.P. The general partner of each of the New Mountain Entities is New Mountain Investments II, L.L.C. and the manager of each of the New Mountain Entities is New Mountain Capital L.L.C. Steven Klinsky is the managing member of New Mountain Investments II, L.L.C. Matthew Holt is a member of New Mountain Investments II, L.L.C. New Mountain Investments II, L.L.C. has decision-making power over the disposition and voting of shares of portfolio investments of each of the New Mountain Entities.

7. New Mountain Capital, L.L.C. also has voting power over the shares of portfolio investments of the New Mountain Entities in its role as the investment advisor. New Mountain Capital, L.L.C. is a wholly-owned subsidiary of New Mountain Capital Group, L.L.C. New Mountain Capital Group, L.L.C. is 100% owned by Steven Klinsky. Since New Mountain Investments II, L.L.C. has decision-making power over the New Mountain Entities, Mr. Klinsky may be deemed to beneficially own the shares that the New Mountain Entities hold of record or may be deemed to beneficially own. Mr. Klinsky, Adam Weinstein, a director of the Issuer and a member of New Mountain Investments II, L.L.C., Mr. Holt, New Mountain Investments II, L.L.C. and New Mountain Capital, L.L.C. disclaim beneficial ownership over the shares held by the New Mountain Entities, except to the extent of their pecuniary interest therein.

	/s/ Manesh Naidu, as Attorney-in-Fact for Matthew S. Holt	02/23/2015
	** Signature of Reporting Person	Date
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