Packeteer

Prospectus Summary

You should read this summary together with the more detailed information regarding our company and the common stock being sold in this offering and our consolidated financial statements and related notes thereto appearing elsewhere in this prospectus. Because this is only a summary, you should read the rest of the prospectus before you invest in our common stock. Read this entire prospectus carefully, especially the risks described under "Risk Factors."

Unless otherwise indicated, the information in this prospectus assumes the automatic conversion of each outstanding share of preferred stock into one share of common stock and no exercise of the underwriter's option to purchase additional shares.