COMMVAULT SYSTEMS INC — Director's Dealing 2011

Apr 4, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMMVAULT SYSTEMS INC (CVLT)
CIK: 0001169561
Period of Report: 2011-03-31

Reporting Person: BUNTE AL (Director, Executive Vice President & COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-03-31	Common Stock	M	25000	$6.00	Acquired	351794	Direct
2011-03-31	Common Stock	S	25000	$41.00	Disposed	326794	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-03-31	Options to Purchase Common Stock	$6.00	M	25000	Disposed	2012-05-02	Common Stock (25000)	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.