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* QUAKER BIO VENTURES LP (Last) (First) (Middle) C/O CIRA CENTRE 2929 ARCH STREET (Street) PHILADELPHIA PA 19104 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Regado Biosciences Inc [ RGDO ]	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) 08/27/2013
	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 $0.001 per share	08/27/2013		C		399,201	A	(2)	435,129	D(1)
Common Stock, par value $0.001 per share	08/27/2013		C		273,468	A	(3)	708,597	D(1)
Common Stock, par value $0.001 per share	08/27/2013		C		465,252	A	(4)	1,173,849	D(1)
Common Stock, par value $0.001 per share	08/27/2013		C		48,362	A	(5)	1,222,211	D(1)
Common Stock, par value $0.001 per share	08/27/2013		P		71,810	A	$4	1,294,021	D(1)

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
Series B Preferred Stock	(2)	08/27/2013		C			6,666,667	(2)	(2)	Common Stock, par value $0.001 per share	399,201(2)	$0	0	D(1)
Series C Preferred Stock	(3)	08/27/2013		C			4,566,908	(3)	(3)	Common Stock, par value $0.001 per share	273,468(3)	$0	0	D(1)
Series D Preferred Stock	(4)	08/27/2013		C			7,769,715	(4)	(4)	Common Stock, par value $0.001 per share	465,252(4)	$0	0	D(1)
Series E Preferred Stock	(5)	08/27/2013		C			807,652	(5)	(5)	Common Stock, par value $0.001 per share	48,362(5)	$0	0	D(1)

1. Name and Address of Reporting Person* QUAKER BIO VENTURES LP (Last) (First) (Middle) C/O CIRA CENTRE 2929 ARCH STREET (Street) PHILADELPHIA PA 19104 (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* QUAKER BIOVENTURES CAPITAL LP (Last) (First) (Middle) 435 DOVER PARK DRIVE BLDG 500 (Street) WAYNE PA 19087 (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 reportable securities are directly held by Quaker BioVentures, L.P. (the "Reporting Person"). Quaker BioVentures Capital, L.P. ("Quaker Capital LP") is the general partner of the Quaker. Quaker BioVentures Capital, LLC ("Quaker Capital LLC") is the general partner of Quaker Capital LP and has voting and dispositive power over the shares held by the Reporting Person. Voting and investment determinations made by Quaker Capital LLC with respect to the shares held by the Reporting Person are made by an investment committee of Quaker Partners Management, L.P., which committee includes P. Sherrill Neff, a member of the board of the directors of the Company.

2. The shares of Series B Preferred Stock had no expiration date and automatically converted upon the consummation of the initial public offering of Regado Biosciences, Inc. (the "Company") at a conversion ratio of 1 share of Series B Preferred Stock to 0.05988024 shares of common stock, for no additional consideration.

3. The shares of Series C Preferred Stock had no expiration date and automatically converted upon the consummation of the Company's initial public offering at a conversion ratio of 1 share of Series C Preferred Stock to 0.05988024 shares of common stock, for no additional consideration.

4. The shares of Series D Preferred Stock had no expiration date and automatically converted upon the consummation of the Company's initial public offering at a conversion ratio of 1 share of Series D Preferred Stock to 0.05988024 shares of common stock, for no additional consideration.

5. The shares of Series E Preferred Stock had no expiration date and automatically converted upon the consummation of the Company's initial public offering at a conversion ratio of 1 share of Series E Preferred Stock to 0.05988024 shares of common stock, for no additional consideration.

Remarks:

	Quaker BioVentures, L.P. By: /s/ P. Sherrill Neff, the member of Quaker BioVentures Capital, LLC, the general partner of Quaker BioVentures Capital, L.P.	08/29/2013
	Quaker BioVentures Capital, L.P. By: /s/ P. Sherrill Neff, member of Quaker BioVentures Capital, LLC, the GP of Quaker BioVentures Capital, L.P., the GP of Quaker BioVentures, L.P.	08/29/2013
	** Signature of Reporting Person	Date
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