Exhibit 4.1

NUMBER
VMT
Viamet Pharmaceuticals, Inc.
SHARES
INCORPORATED UNDER THE LAWS
OF THE STATE OF DELAWARE
SEE REVERSE FOR CERTAIN DEFINITIONS
CUSIP 92555T 10 2
THIS CERTIFIES THAT
SPECIMEN
IS THE OWNER OF
FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK, $.001 PAR VALUE PER SHARE, OF
Viamet Pharmaceuticals, Inc.
transferable on the books of the Corporation in person or by duly authorized attorney upon surrender of the Certificate properly endorsed. This
Certificate is not valid until countersigned by the Transfer Agent and registered by the Registrar.
Witness the facsimile signatures of the Corporation’s duly authorized officers.
Dated:
CHIEF BUSINESS AND FINANCIAL OFFICER
PRESIDENT AND CHIEF EXECUTIVE OFFICER
COUNTERSIGNED AND REGISTERED:
AMERICAN STOCK TRANSFER & TRUST COMPANY, LLC
(Brooklyn, NY)
Transfer Agent
and Registrar
By
Authorized Officer
AMERICAN BANK NOTE COMPANY

The following abbreviations, when used in the inscription on the face of this Certificate, shall be construed as
though they were written out in full according to applicable laws or regulations:
TEN COM—as tenants in common
TEN ENT—as tenants by the entireties
JT TEN —as joint tenants with right of
survivorship and not as tenants
in common
UNIF GIFT MIN ACT — Custodian
(Cust) (Minor)
under Uniform Gifts to Minors
Act
(State)
Additional abbreviations may also be used though not in the above list.
For value received, hereby sells, assigns and transfers unto
PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE
(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)
shares represented by the within Certificate, and does hereby irrevocably
constitute and appoint
, attorney to transfer the said shares on the books of the within named Corporation
with full power of substitution in the premises.
Dated
NOTICE:
THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF
THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.
Signature(s) Guaranteed:
THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS,
STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN
APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15.