CommVault(R) Announces Pricing of Secondary Offering

June 14, 2007

OCEANPORT, N.J., Jun 14, 2007 (BUSINESS WIRE) -- CommVault Systems, Inc. (NASDAQ:CVLT), a leading provider of data management software applications and related services, announced today the pricing of a public offering of 7,870,000 shares of its common stock at $17.00 per share (before underwriting discounts and commissions). Of those shares, CommVault is selling 300,000 shares and selling stockholders are selling 7,570,000 shares. The underwriters have an option to purchase a maximum of 1,172,329 additional shares from the selling stockholders to cover over-allotment of shares.

Credit Suisse Securities (USA) LLC, Goldman, Sachs & Co. and Merrill Lynch & Co. are serving as the joint bookrunners of this offering and Thomas Weisel Partners LLC, RBC Capital Markets and C.E. Unterberg, Towbin LLC are serving as co-managers. Copies of the final prospectus relating to this offering may be obtained by contacting the Credit Suisse Prospectus Department (One Madison Avenue, New York, New York, 10010; telephone 800-221-1037), Goldman, Sachs & Co. (85 Broad Street, New York, New York, 10004; telephone 866-471-2526) or Merrill Lynch & Co. (4 World Financial Center, 250 Vesey Street, New York, New York, 10080; telephone 212-449-1000).

This announcement shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About CommVault(R)

A singular vision - a belief in a better way to address current and future data management needs - guides CommVault in the development of Unified Data Management(R) solutions for high-performance data protection, universal availability and simplified management of data on complex storage networks. CommVault's exclusive single-platform architecture gives companies unprecedented control over data growth, costs and risk. CommVault's software was designed to work together seamlessly from the ground up, sharing a single code and common function set, to deliver superlative Data Protection, Archive, Replication, and Resource Management. More companies every day join those who have discovered the unparalleled efficiency, performance, reliability, and control only CommVault can offer. Information about CommVault is available at www.commvault.com. CommVault's corporate headquarters is located in Oceanport, New Jersey in the United States. (cvlt-c)

Safe Harbor Statement

This press release may contain forward-looking statements, including statements regarding financial projections, which are subject to risks and uncertainties, such as competitive factors, difficulties and delays inherent in the development, manufacturing, marketing and sale of software products and related services, general economic conditions and others. Statements regarding CommVault's beliefs, plans, expectations or intentions regarding the future are forward-looking statements, within the meaning of Section 27A of the Securities Act of 1933, as amended and Section 21E of the Securities Exchange Act of 1934, as amended. All such forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from anticipated results. CommVault does not undertake to update its forward-looking statements.

(C)2007 CommVault Systems, Inc. All rights reserved. CommVault, CommVault and logo, the "CV" logo, CommVault Systems, Solving Forward, SIM, Singular Information Management, CommVault Galaxy, Unified Data Management, QiNetix, Quick Recovery, QR, QNet, GridStor, Vault Tracker, Quick Snap, QSnap, Recovery Director, CommServe, and CommCell, are trademarks or registered trademarks of CommVault Systems, Inc. All other third party brands, products, service names, trademarks, or registered service marks are the property of and used to identify the products or services of their respective owners. All specifications are subject to change without notice.

SOURCE: CommVault Systems, Inc.

CommVault Systems, Inc.
Media Contact:
Dani Kenison, 732-728-5370
pr@commvault.com
or
Investor Relations Contact:
Michael Picariello, 732-728-5380
ir@commvault.com