Exhibit 4.4 NORTH ATLANTIC ACQUISITION CORP. INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE THE CORPORATION WILL FURNISH TO ANY SHAREHOLDER, UPON REQUEST AND WITHOUT SEE REVERSE SIDE FOR CHARGE, A FULL STATEMENT OF THE DESIGNATIONS, RELATIVE RIGHTS, PREFERENCES CERTAIN DEFINITIONS AND LIMITATIONS OF THE SHARES OF EACH CLASS AUTHORIZED TO BE ISSUED. CUSIP This is to Certify that is the owner of FULLY PAID AND NON-ASSESSABLE SHARES OF THE CLASS B COMMON STOCK, PAR VALUE $0.01, OF NORTH ATLANTIC ACQUISITION CORP. a corporation incorporated under the laws of the State of Delaware. The shares evidenced by this certificate are transferable only on the stock transfer books of NORTH ATLANTIC ACQUISITION CORP. by the holder hereof, in person or by attorney, upon surrender of this certificate properly endorsed. IN WITNESS WHEREOF NORTH ATLANTIC ACQUISITION CORP. has caused this certificate to be executed by the signatures of its duly authorized officers and has caused its facsimile seal to be hereunto affixed. Dated: [1995 DELAWARE NORTH ATLANTIC ACQUISITION CORP. CORPORATE SEAL] Secretary Chairman of the Board and Chief Executive Officer Countersigned and Registered: AMERICAN STOCK TRANSFER & TRUST COMPANY By Transfer Agent and Registrar Authorized Officer NORTH ATLANTIC ACQUISITION CORP. 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 ........... (Cust) (Minor) TEN ENT - as tenants by the entireties under Uniform Gifts to Minors JT TEN - as joint tenants with right Act .......................... of survivorship and not as (State) tenants in common 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 ZIP CODE OF ASSIGNEE. ________________________________________________________________________________ ________________________________________________________________________________ _________________________________________________________________________ Shares represented by the within Certificate, and do 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: ___________________ In the presence of __________________________________________________ Signature __________________________________________________ Signature NOTE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME OF THE STOCKHOLDER(S) AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT, OR ANY CHANGE WHATEVER.