COMMVAULT SYSTEMS INC — Director's Dealing 2011

Oct 17, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMMVAULT SYSTEMS INC (CVLT)
CIK: 0001169561
Period of Report: 2011-10-14

Reporting Person: MICELI LOUIS (Vice President and CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-10-14	Common Stock	A	14318	—	Acquired	88647	Direct
2011-10-14	Common Stock	M	1484	$13.81	Acquired	90131	Direct
2011-10-14	Common Stock	S	1484	$42.00	Disposed	88647	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-10-14	Options to Purchase Common Stock	$41.55	A	42955	Acquired	2021-10-14	Common Stock (42955)	Direct
2011-10-14	Options to Purchase Common Stock	$13.81	M	1484	Disposed	2018-03-14	Common Stock (1484)	Direct

Footnotes

F1: The common stock is being granted as restricted stock units and are subject to a 4-year vesting schedule, as follows: 25% on the first anniversary of the grant with the remaining portion vesting in equal quarterly installments thereafter.

F2: Not applicable.

F3: This transaction has taken place pursuant to a pre-arranged trading plan in compliance with Rule 10b5-1 of the Securities and Exchange Act of 1934.

F4: The options to purchase common stock are subject to a 4-year vesting schedule, as follows: 25% on the first anniversary of the grant with the remaining options vesting in equal quarterly installments thereafter.