Additional abbreviations may also be used though not in the above list.

EX-4.1 3 d447329dex41.htm EX-4.1 EX-4.1

Exhibit 4.1

Number AB

Ambit

INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

SEE REVERSE FOR CERTAIN DEFINITIONS

CUSIP 02318X 10 0

THIS CERTIFIES THAT

is the owner of

FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF THE PAR VALUE OF $0.001 PER SHARE OF

AMBIT BIOSCIENCES CORPORATION

Transferable of the books of the Corporation by the holder hereof in person or by duly authorized Attorney, upon surrender of this Certificate, properly endorsed.

This Certificate is not valid until countersigned and registered by the Transfer Agent and Registrar.

WITNESS the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers.

Dated:

Chief Financial Officer

Ambit Biosciences, Corp.

CORPORATE

SEAL

MAY 17, 2000

DELAWARE

President and Chief Executive Officer

COUNTERSIGNED AND REGISTERED:

AMERICAN STOCK TRANSFER AND TRUST COMPANY, LLC

(Brooklyn, NY)

TRANSFER AGENT AND REGISTRAR

BY:

AUTHORIZED SIGNATURE

The Corporation shall furnish without charge to each stockholder who so requests a statement of the powers, designations, preferences and relative, participating, optional or other special rights of each class of stock of the Corporation or series thereof and the qualifications, limitations or restrictions of such preferences and/or rights. Such requests shall be made to the Corporation.

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

UNIF GIFT MIN ACT–

Custodian

TEN ENT

–

as tenants by the entireties

(Cust)

(Minor)

JT TEN

–

as joint tenants with right of survivorship and not as tenants in common

under Uniform Gifts to Minors

Act

(State)

Additional abbreviations may also be used though not in the above list.

For value received, hereby sell, assign and transfer unto


PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE


PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING POSTAL ZIP CODE OF ASSIGNEE


								Shares
of the common stock represented by the within Certificate, and do hereby irrevocably constitute and appoint

Attorney to transfer the said stock 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.


ABnote North America 711 ARMSTRONG LANE COLUMBIA, TENNESSEE 38401 (931) 388-3003				PROOF OF: APRIL 18, 2013 AMBIT BIOSCIENCES CORP. WO- 6858 BACK
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