OpGen, Inc. Specimen Common Stock Certificate
This document is a specimen certificate representing shares of common stock in OpGen, Inc., a Delaware corporation. It certifies ownership of fully paid and non-assessable shares, which can be transferred on the company's books by the owner or an authorized agent upon proper endorsement. The certificate is governed by Delaware law and OpGen's Certificate of Incorporation and Bylaws. It is not valid until countersigned by the designated transfer agent. This specimen is for demonstration purposes and is not negotiable.
Exhibit 4.1
Number op Shares Specimen OpGen, inc. incorporated under the laws of the state of deleware see reverse for certain definitions common stock cusip 68373l 20 8 This certifies that: specimen – not negotiable is the owner of fully paid and non-assessable shares of common stock of $.01 par value each of opgen, inc. transferable on the books of the corporation in person or by duly authorized attorney upon surrender of this certificate duly endorsed or assigned. This certificate and the shares represented hereby are subject to the laws of the state of Delaware, and to the Certificate Incorporation and Bylaws of the Corporation, as now or hereafter amended. This certificate is not valid until countersigned by the Transfer Agent. WITNESS the facsimile seal of the corporation and the facsimile signatures of its duly authorized officers. DATED: countersigned Philadelphia stock transfer. Inc 2320 haverford rd. suite 230. Ardmore, PA 19003 Transfer Agent authorized signature corporate SEAL 2001 Delaware Specimen not negotiable Chief financial officer CEO/President
