COMMVAULT SYSTEMS INC — Director's Dealing 2011

Feb 17, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMMVAULT SYSTEMS INC (CVLT)
CIK: 0001169561
Period of Report: 2011-02-15

Reporting Person: GEESLIN KEITH (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-02-15	Common Stock	M	5000	$7.20	Acquired	16667	Direct
2011-02-15	Common Stock	M	5000	$4.50	Acquired	21667	Direct
2011-02-15	Common Stock	M	7500	$12.60	Acquired	29167	Direct
2011-02-15	Common Stock	M	5156	$13.81	Acquired	34323	Direct
2011-02-15	Common Stock	S	5000	$36.92	Disposed	29323	Direct
2011-02-15	Common Stock	S	5000	$36.92	Disposed	24323	Direct
2011-02-15	Common Stock	S	7500	$36.92	Disposed	16823	Direct
2011-02-15	Common Stock	S	5156	$36.92	Disposed	11667	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-02-15	Options to Purchase Common Stock	$7.20	M	5000	Disposed	2014-01-29	Common Stock (5000)	Direct
2011-02-15	Options to Purchase Common Stock	$4.50	M	5000	Disposed	2015-05-05	Common Stock (5000)	Direct
2011-02-15	Options to Purchase Common Stock	$12.60	M	7500	Disposed	2016-05-03	Common Stock (7500)	Direct
2011-02-15	Options to Purchase Common Stock	$13.81	M	5156	Disposed	2018-03-14	Common Stock (5156)	Direct

Footnotes

F1: Represents average sale price.

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.