Common use of Optionee Information Clause in Contracts

Optionee Information. My address is: ______________________________________________________________________ ______________________________________________________________________ My Social Security Number is: ________________________________________ I understand that I am purchasing the Shares pursuant to the terms of the Plan and my Option Agreement, copies of which I have received and carefully read and understand. Very truly yours, _______________________________ Receipt of the above is hereby acknowledged. EXTREME NETWORKS, INC. By: _______________________________________ Title: ____________________________________ Dated: ____________________________________

Optionee Information. My address is: ______________________________________________________________________ ______________________________________________________________________ My Social Security Number is: ________________________________________ I understand that I am purchasing the Shares pursuant to the terms of the Plan and my Option Agreement, copies of which I have received and carefully read and understand. Very truly yours, _______________________________ Receipt of the above is hereby acknowledged. EXTREME NETWORKS, INC. By: _______________________________________ Title: ____________________________________ Dated: ____________________________________

Optionee Information. My address is: ______________________________________________________________________ ______________________________________________________________________ My Social Security Number is: ________________________________________ I understand that I am purchasing the Shares pursuant to the terms of the Plan and my Option Agreement, copies a copy of which I have received and have carefully read and understand. Very truly yours, ____________________________________ Receipt of the above is hereby acknowledged. EXTREME NETWORKS, INC. By: (Signature) ____________________________________ (Optionee's Name Printed) Receipt of the above is hereby acknowledged: PROTEIN DESIGN LABS, INC. By: _________________________ Title: ____________________________________ Dated: ____________________________________

Optionee Information. My address is: _______________________________________________________________________ _______________________________________________________________________ My Social Security Number is: _________________________________________ I understand that I am purchasing the Shares pursuant to the terms of the Plan and my Option Agreement, copies of which I have received and carefully read and understand. Very truly yours, _______________________________ Receipt of the above is hereby acknowledged. EXTREME NETWORKS, INC. By: :__________________________________________ Title: :_______________________________________ Dated: :_______________________________________

Optionee Information. My address is: ______________________________________________________________________ ______________________________________________________________________ My Social Security Number is: ________________________________________ I understand that I am purchasing the Shares pursuant to the terms of the Plan and my Option Agreement, copies a copy of which I have received and have carefully read and understand. Very truly yours, ____________________________________ Receipt of the above is hereby acknowledged. EXTREME NETWORKS, INC. By: (Signature) ____________________________________ (Optionee's Name Printed) Receipt of the above is hereby acknowledged: PROTEIN DESIGN LABS, INC. By: __________________________ Title: ____________________________________ Dated: ____________________________________