13G Filing: 683 Capital Partners and Contrafect Corp (CFRX)

This Schedule 13G reflects the beneficial ownership of the Reporting Persons (as defined below) as of July 20, 2017.

Item 1(a).

Name of Issuer:

ContraFect Corporation (“Issuer”)

Item 1(b).

Address of Issuer’s Principal Executive Offices:

Item 2(a).

Name of Persons Filing:

The names of the persons filing this statement on Schedule 13G (collectively, the “Reporting Persons”) are:

·	683 Capital Management, LLC,

·	683 Capital Partners, LP and

·	Ari Zweiman.

Item 2(b).

Address of Principal Business Office or, if None, Residence:

The principal business address for each of the Reporting Persons is 3 Columbus Circle, Suite 2205, New York, NY 10019.

Item 2(c).

Citizenship:

683 Capital Management, LLC is a Delaware limited liability company.  683 Capital Partners, LP is a Delaware limited partnership.  Ari Zweiman is a citizen of the United States.

Item 2(d).

Title of Class of Securities:

Common Stock, par value $0.0001 per share (the “Common Stock”)

Item 2(e).

CUSIP Number:

212326102