COMMVAULT SYSTEMS INC — Director's Dealing 2011

Sep 29, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMMVAULT SYSTEMS INC (CVLT)
CIK: 0001169561
Period of Report: 2011-09-27

Reporting Person: MICELI LOUIS (Vice President and CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-09-27	Common Stock	M	2950	$13.81	Acquired	77728	Direct
2011-09-27	Common Stock	S	2950	$41.00	Disposed	74778	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-09-27	Options to Purchase Common Stock	$13.81	M	2950	Disposed	2018-03-14	Common Stock (2950)	Direct

Footnotes

F1: All transactions shown on this form have taken place pursuant to a pre-arranged trading plan in compliance with Rule 10b5-1 of the Securities and Exchange Act of 1934.

F2: The options vested over 4 years from the date of grant, as follows: 25% on the first anniversary of the grant, quarterly thereafter for the remaining three years.