X0508 4 2026-02-18 0 0001169561 COMMVAULT SYSTEMS INC CVLT 0001765820 Mirchandani Sanjay 1 COMMVAULT WAY TINTON FALLS NJ 07724 1 1 0 0 President & CEO 0 Common Stock 2026-02-18 4 S 0 6480 90.28 D 352919 D Represents shares automatically sold solely to satisfy tax withholding obligations of reporting person on vesting of restricted and performance stock. Proceeds from the sale were submitted to the Internal Revenue Service. Includes shares purchased under the Commvault Employee Stock Purchase Plan on February 13, 2026. /s/ Danielle Abrahamsen, Attorney-in-Fact 2026-02-20