144 0001658818 XXXXXXXX LIVE 0001078271 EXTREME NETWORKS INC 001-40423 2121 RDU CENTER DRIVE SUITE 300 MORRISVILLE NC 27560 408-579-2800 HOLMGREN KATHLEEN M Director common Charles Schwab & Co

3000 Schwab Way westlake TX 76262

19521 482363.91 130778088 05/15/2026 Nasdaq common 11/07/2020 restricted stock unit issuer N 3000 11/07/2020 equity compensation common 11/05/2022 restricted stock unti issuer N 16521 11/05/2022 equity compensation Y Holmgren family trust, TTEE Kathleen Holmgren 05/15/2026 Kathleen Holmgren