Common Stock Certificate of Acme Packet, Inc.

Summary

This document certifies that the named individual or entity is the owner of fully paid and non-assessable shares of common stock in Acme Packet, Inc., a Delaware corporation. The shares are transferable on the company's books by the holder or an authorized attorney upon proper endorsement and surrender of the certificate. The certificate is only valid when countersigned and registered by the designated transfer agent and registrar.

EX-4.1 5 a2173236zex-4_1.txt EXHIBIT 4.1 [acme packet logo] NUMBER SHARES AP Acme Packet, Inc. INCORPORATED UNDER THE LAWS CUSIP 004764 10 6 OF THE STATE OF DELAWARE SEE REVERSE FOR CERTAIN DEFINITIONS - ------------------------------------------------------------------------------ THIS CERTIFIES THAT is the owner of - ------------------------------------------------------------------------------ FULL PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK, PAR VALUE $0.001 PER SHARE OF - --------------------------------Acme Packet, Inc.----------------------------- transferable 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 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: Acme Packet, Inc. CORPORATE SEAL PRESIDENT 2000 TREASURER DELAWARE COUNTERSIGNED AND REGISTERED: BY TRANSFER AGENT AND REGISTRAR AUTHORIZED OFFICER