1 EXHIBIT 4.1 COMMON STOCK [JTS CORPORATION LOGO] COMMON STOCK [LOGO] [LOGO] SEE REVERSE FOR CERTAIN DEFINITIONS AND A STATEMENT AS TO THE RIGHTS, PREFERENCES, PRIVILEGES AND RESTRICTIONS ON SHARES CUSIP 466251 10 5 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 JTS CORPORATION TRANSFERRABLE ON 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 BY THE TRANSFER AGENT AND REGISTERED BY THE REGISTRAR. WITNESS THE FACSIMILE SEAL OF THE CORPORATION AND THE FACSIMILE SIGNATURES OF ITS DULY AUTHORIZED OFFICERS. [SIGNATURE] [SIGNATURE] EXECUTIVE VICE PRESIDENT, PRESIDENT AND CHIEF EXECUTIVE FINANCE AND ADMINISTRATION CHIEF OFFICER FINANCIAL OFFICER AND SECRETARY [JTS CORPORATION SEAL] 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 FROM THE SECRETARY OF THE CORPORATION 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 TEN___NT - AS TENANTS BY THE JT TEN - AS JOINT TENANTS WITH RIGHTS OF SURVIVORSHIP AND NOT ________ __________________ IN COMMON COMP PROP - AS COMMUNITY PROPERTY UNIF__________ - ______________________ CUSTODIAN __________________________ UNDER UNIFORM GIFTS TO ___________________________________ A ______ ____________________________________. (___________) ___________________________ CUSTODIAN (UNTIL AGE ______) _____________________, UNDER UNIFORM TRANSFERS TO MINORS ACT ___________________________________________ ADDITIONAL ABBREVIATIONS __________________________________ BE USED THROUGHOUT 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 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 ____________________________________ THE ________________________________ NOTICE: ____________________OR ANY CHANGE ____________________________________ SIGNATURE(S) GUARANTEED BY ____________________________________________ THE SIGNATURES SHOULD BY GUARANTEED BY........ AMERICAN BANK NOTE COMPANY MAY 13, 1996 _604 ATLANTIC AVENUE SUITE 18 LONG BEACH, CA 90807 043980bk (310) ____-_____________ FAX (310) ____-_____________ NEW