Amended Statement of Changes in Beneficial Ownership (4/a)

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	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * jVen Capital, LLC	2. Issuer Name and Ticker or Trading Symbol OPGEN INC [ OPGN ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __ X __ Director                      __ X __ 10% Owner __ X __ Officer (give title below)      _____ Other (specify below) Chairman and CEO
(Last)          (First)          (Middle) 11009 CRIPPLEGATE ROAD,	3. Date of Earliest Transaction (MM/DD/YYYY) 7/5/2017
(Street) POTOMAC, MD 20854 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY) 7/10/2017	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. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		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 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
Warrants to purchase Common Stock   (1)	$0.69   (2)	7/5/2017		P		158730		12/5/2017	7/5/2022   (2)	Common Stock	158730	$0.00	158730	D   (3)

Explanation of Responses:
(1)	Issuance of warrants pursuant to that certain Amended & Restated Note Purchase Agreement dated July 10, 2017.
(2)	The purpose of this Form 4/A is to correct the exercise price and expiration date for this warrant issuance.
(3)	Evan Jones, the Chairman of the Board and the Chief Executive Officer of OpGen, Inc. (the "Company"), is the managing member of jVen Capital, LLC and is the indirect beneficial owner of all shares of the Company's Common Stock owned by jVen Capital, LLC.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
jVen Capital, LLC 11009 CRIPPLEGATE ROAD POTOMAC, MD 20854	X	X	Chairman and CEO
JONES EVAN/ FA C/O OPGEN, INC. 708 QUINCE ORCHARD ROAD, SUITE 160 GAITHERSBURG, MD 20878			Chief Executive Officer

Signatures
/s/ Timothy C. Dec, Attorney-in-Fact		7/25/2017
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	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).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.