1 EXHIBIT 4.1 COMMON STOCK COMMON STOCK [PROBUSINESS LOGO] PRBZ PROBUSINESS SERVICES, INC. PAR VALUE $.001 SEE REVERSE FOR CERTAIN DEFINITIONS AND A STATEMENT OF RESTRICTIONS ON SHARES CUSIP 742674 10 4 INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE THIS CERTIFIES THAT IS THE RECORD HOLDER OF FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK, $.001 PAR VALUE PER SHARE OF PROBUSINESS SERVICES, INC. transferable on the bank 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: [PROBUSINESS SERVICES, INC. SEAL] /s/ Steven Klei /s/ Thomas H.Sinton VICE PRESIDENT, CHIEF FINANCIAL OFFICER PRESIDENT AND AND SECRETARY CHIEF EXECUTIVE OFFICER COUNTERSIGNED AND REGISTERED: NORWEST BANK MINNESOTA, N.A. TRANSFER AGENT AND REGISTRAR BY AUTHORIZED SIGNATURE - ------------------------------------------------------ AMERICAN BANK NOTE COMPANY APRIL 4, 1997 dw 3604 ATLANTIC AVENUE SUITE 12 LONG BEACH, CA 90807 049068fc (562) 989-2333 (FAX) (562) 426-7450 270-19X proof [initialed] REV 2 ------------ - ------------------------------------------------------- 2 A statement of the powers, designations, preferences and relative, participating, optional or other special rights of each class of stock or series thereof and the qualifications, limitations or restrictions of such preferences and/or rights as established, from time to time, by the Certificate of Incorporation of the Corporation and by any certificate of determination, the number of shares constituting each class and series and the designations thereof, may be obtained by the holder hereof upon request and without charge at the principal office of 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 under Uniform Gifts to Minors in common Act ............................... (State) UNIF TRF MIN ACT -- ........... Custodian (until age ....) (Cust) ........... under Uniform Transfers (Minor) to Minors Act ........................ (State) Additional abbreviations may also be used though not in the above list. FOR VALUE RECEIVED, ___________________ hereby sell(s), assign(s) and transfer(s) unto PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE - -------------------------------------- - -------------------------------------- _______________________________________________________________________________ (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING 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 _____________________________ X __________________________________________________________ X __________________________________________________________ NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME(S) AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER. Signature(s) Guaranteed By ________________________________________________ THE SIGNATURE(S) SHOULD 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 17 AG-16. - --------------------------------------------------- AMERICAN BANK NOTE COMPANY APRIL 4, 1997 dw 3504 ATLANTIC AVENUE 049068bk SUITE 12 LONG BEACH, CA 90807 (562) 959-2333 (FAX) (562) 426-7450 proof [initialed] REV 1 --------- - ---------------------------------------------------