COMMVAULT SYSTEMS INC — Director's Dealing 2025

May 20, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMMVAULT SYSTEMS INC (CVLT)
CIK: 0001169561
Period of Report: 2025-05-15

Reporting Person: Mirchandani Sanjay (Director, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-15	Common Stock	A	33997	—	Acquired	449254	Direct
2025-05-15	Common Stock	A	25497	—	Acquired	474751	Direct
2025-05-15	Common Stock	A	25497	—	Acquired	500248	Direct
2025-05-16	Common Stock	S	14872	$178.41	Disposed	485376	Direct
2025-05-16	Common Stock	S	100	$175.98	Disposed	485276	Direct
2025-05-16	Common Stock	S	2373	$177.67	Disposed	482903	Direct
2025-05-16	Common Stock	S	400	$179.30	Disposed	482503	Direct
2025-05-16	Common Stock	S	100	$179.95	Disposed	482403	Direct
2025-05-16	Common Stock	S	27	$181.69	Disposed	482376	Direct
2025-05-16	Common Stock	A	21641	—	Acquired	504017	Direct
2025-05-16	Common Stock	A	12968	—	Acquired	516985	Direct
2025-05-19	Common Stock	A	12955	—	Acquired	529940	Direct
2025-05-19	Common Stock	S	2917	$174.68	Disposed	527023	Direct
2025-05-19	Common Stock	S	8855	$175.59	Disposed	518168	Direct
2025-05-19	Common Stock	S	5637	$176.56	Disposed	512531	Direct
2025-05-19	Common Stock	S	859	$177.19	Disposed	511672	Direct
2025-05-19	Common Stock	S	26083	$175.74	Disposed	485589	Direct
2025-05-19	Common Stock	S	11	$177	Disposed	485578	Direct

Footnotes

F1: The common stock is being granted as restricted stock units and is subject to a 3-year vesting schedule, as follows: 1/3 on the first anniversary of the grant with the remaining portion vesting in equal quarterly installments thereafter.

F2: The common stock is being granted as performance share units (PSUs), 1/3 of which will vest, on each of the first, second and third anniversaries of the grant date of the award, if on such dates the Company's total shareholder return satisfies specified benchmarks relative to Russell 3000 index.

F3: The common stock is being granted as performance share units (PSUs) which will vest over a three year period based on the Company's achievement of certain financial performance metrics.

F4: Represents shares automatically sold solely to satisfy tax withholding obligations of reporting person on vesting of restricted stock. Proceeds from the sale were submitted to the Internal Revenue Service.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $178.15 and $178.41, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer.

F6: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.32 and $178.01, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer.

F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $178.80 and $179.60, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer.

F8: Represents additional shares issued in connection with the Company's total shareholder return for fiscal year 2025 satisfying specified benchmarks relative to the Russell 3000 index pursuant to the terms of an award granted on May 15, 2024.

F9: Represents additional shares issued in connection with the Company's total shareholder return for fiscal year 2025 satisfying specified benchmarks relative to the Russell 3000 index pursuant to the terms of an award granted on May 15, 2023.

F10: Represents additional shares issued in connection with the Company's total shareholder return for fiscal year 2025 satisfying specified benchmarks relative to the Russell 3000 index pursuant to the terms of an award granted on May 16, 2022.

F11: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $174.01 and $174.91, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer.

F12: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $175.05 and $176.03, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer.

F13: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.06 and $177.03, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer.

F14: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.11 and $177.33, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer.

F15: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.92 and $177.11, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer.