X0306 4 2022-02-28 0001078271 EXTREME NETWORKS INC EXTR 0001179945 MEYERCORD EDWARD 2121 RDU CENTER DR. MORRISVILLE NC 27560 1 1 PRESIDENT AND CEO Common Stock 2022-02-28 4 M 0 22286 0 A 788980 D Common Stock 2022-02-28 4 F 0 10330 11.49 D 778650 D Common Stock 2022-03-01 4 M 0 25000 2.51 A 803650 D Common Stock 2022-03-01 4 S 0 25000 11.1253 D 778650 D Restricted Stock Units 0 2022-02-28 4 M 0 22286 0 D 2020-08-31 2022-08-31 Common stock 22286 44572 D Non-Qualified Stock Option (right to buy) 2.51 2022-03-01 4 M 0 25000 0 D 2017-03-16 2022-05-08 Common Stock 25000 25000 D Represents shares withheld from the released share award for the payment of applicable income and payroll withholding taxes due on release Transaction pursuant to the Reporting Person's 10b5-1 Plan. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.84 to $11.8399 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This Time-based RSU award vests from the original grant date as to 1/3 on the one year anniversary and 1/12 each quarter thereafter. This Performance Option Grant vested monthly over 2 years from the date of Grant and was achieved after the Company's Common Stock closing price exceeded $5.50 for 30 consecutive trading days on March 16, 2017. /s/ Katy Motiey, Power of Attorney for Ed Meyercord 2022-03-02