Form 4 Filing for Commvault Systems Inc.

Sanjay Mirchandani, President & CEO of Commvault Systems Inc., acquired 2,805 Performance Stock Units (PSUs) on April 22, 2026. These PSUs are part of a larger grant from May 15, 2025, and are subject to time-based vesting criteria. A portion of these units (33%) vested on the first anniversary of the grant date, with subsequent vesting occurring in three-month intervals. Each PSU represents the right to receive one share of common stock. The reported shares were acquired under transaction code "A", indicating an acquisition. The price per share was not a cash transaction, as indicated by the footnote referencing performance criteria and time-based vesting. The post-transaction number of shares owned is 2,805.