Exhibit 4.1

INCORPORATED IN DELAWARE
NUMBER GC4842580
CohBar NC
This certifies that
** PROOF **
* PROOF * GC4842580 * US19249J1097 * 12345678901 FULLY PAID AND NON-ASSESSABLE COMMON SHARES WITHOUT NOMINAL PAR VALUE COH BAR, INC. * COHBAR, INC. * PROOF * GC4842580 * US19249J1097 * 12345678901 FULLY PAID AND NON-ASSESSABLE COMMON SHARES WITHOUT NOMINAL OR PAR VALUE * PROOF * GC4842580 * US19249J1097 * 12345678901 FULLY PAID AND NON-ASSESSA BLE COMMON SHARES WlTHOUT NOMINAL VALUE COHBAR, INC. * COHBAR. INC. * PROOF * GC4842580 * US19249J1097 * 12345678901 F ULLY PAID AND NON-ASSESABLE COMMON SHARES WITHOUT NOMINAL OR PAR VALUE COHBAR, INC. * COHBAR. INC. * PROOF * GC4842580 * US1 9249J1097 * 12345678901 FULLY PAID AND NON-ASSESSABLE COMMON SHARES WITHOUT NOMINAL OR PAR VALUE * PROOF * GC4842580 * US19249J1097 * 12345678901 FULLY PAID AND NON-ASSESSABLE COMMON SHARES WITHOUT NOMINAL OR PAR VALUE COH BAR, INC. * COHBAR, INC. * PROOF * GC4842580 * US19249J1097 * 12345678901 FULLY PAID AND NON-ASSESSABLE COMMON SHARES WITHOUT NOMINAL OR PAR VALUE COHBAR, INC. * COHBAR, INC. * PROOF * GC4842580 * US19249J1097 * 12345678901 FULLY PAID AND NON-ASSESSA
SHARES
*12345678901 *************
**12345678901 ************
***12345678901 ***********
****12345678901 **********
*****12345678901 *********
Is the Registered Holder of
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* PROOF * GC4842580 * US19249J1097 * 12345678901 FULLY PAID AND NON-ASSESSA BLE COMMON SHARES WITHOUT NOMINAL OR PAR VALUE COHBAR INC. * COHBAR, INC.
* PROOF * GC4842580 FULLY PAID AND NON-ASSESSA BLE COMMON SHARES WITHOUT NOMINAL OR PAR VALUE COHBAR, INC. * COHBAR, INC.
* PROOF * GC4842580 * US19249J1097 * 12345678901 FULLY PAID AND NON-ASSESSA
ISIN: US19249J1097
CUSIP: 19249J109
FULLY PAID AND NON-ASSESSABLE COMMON SHARES WITHOUT NOMINAL OR PAR VALUE
COHBAR, INC.
in the Capital Stock of the above named Corporation transferable on the books of the Corporation by the registered holder in person or by duly authorized attorney in writing upon surrender of this Certificate properly endorsed.
This certificate is not valid until countersigned and registered by the Transfer Agent and Registrar of the Corporation.
IN WITNESS WHEREOF the Corporation has caused this Certificate to be signed by the facsimile signature of its duly authorized officers.
Chief Executive Officer
DATED: DECEMBER 12, 2014
Countersigned and Registered
CST Trust Company
Transfer Agent and Registrar
VANCOUVER
TORONTO
NEW YORK
BY:
Chief Financial Officer and Secretary
Authorized Signature
The shares represented by this certificate are transferable at the offices of CST Trust Company in Vancouver, BC, Toronto ON and American Stock Transfer & Trust Company, LLC, New York, USA.
Printed by DATA BUSINESS FORMS
1689001 0 G PROOF - 00064038
SECURITY INSTRUCTIONS ON REVERSE VOIR LES INSTRUCTIONS DE SÉCURITÉ AU VERSO
999999999 G4244510
4842580

For value received, the undersigned hereby sell(s), assign(s) and transfer(s) unto (Print name(s) of person(s) to whom the securities are being transferred and the address for the register)
shares (number of shares if blank, deemed to be all)
of the Corporation represented by this certificate, and hereby irrevocably constitutes and appoints the attorney of the undersigned to transfer the said securities with full power of substitution in this matter:
Dated
Signature Guarantee(s)*
Transferor(s) Signature(s)*
(the transfer cannot be processed without acceptable guarantees of all signatures)
* For transfers signed by the registered holder(s), their signature(s) must correspond with the name(s) on the certificate in every particular, without any changes.
In addition, every signature must be Signature Guaranteed by a Canadian Schedule 1 chartered bank, or a member of one of the recognized medallion programs - Securities Transfer Agents Medallion Program (STAMP), Stock Exchanges Medallion Program (SEMP) or New York Stock Exchange, Inc. Medallion Signature Program (MSP).
SECURITY INSTRUCTIONS - INSTRUCTIONS DE SÉCURITÉ
THIS IS WATERMARKED PAPER, DO NOT ACCEPT WITHOUT NOTING WATERMARK. HOLD TO LIGHT TO VERIFY WATERMARK.
PAPIER FILIGRANÉ, NE PAS ACCEPTER SANS VÉRIFIER LA PRÉSENCE DU FILIGRANE. POUR CE FAIRE, PLACER À LA LUMIÈRE.