Company: CVLT
Filing Date: 2025-06-25
Form Type: DEF 14A
Source: 0001169561-25-000059
Chunk: 67

Company: COMMVAULT SYSTEMS INC
Filing Date: 2025-06-25
Form: DEF 14A
Chunk 67
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3 million shares available for issuance under the 2016 Incentive Plan, as amended.

#### 63COMMVAULT SYSTEMS, INC. |2025 PROXY STATEMENT
Table of Contents

This proxy statement is furnished in connection with the solicitation on behalf of the Board of Directors of Commvault Systems, Inc. of proxies to be voted at the Annual Meeting of Stockholders, including any adjournment or postponement thereof. This proxy statement is first being made available at www.edocumentview.com/CVLT , and we intend to begin distribution of the Notice of Internet Availability of Proxy Materials to stockholders on or about June 25, 2025. A copy of our Annual Report on Form 10-K for the fiscal year ended March 31, 2025, which includes audited financial statements, is also being made available concurrently with the proxy statement at www.edocumentview.com/CVLT .

| TIME AND DATE            
 Thursday, August 7, 2025 |     | LOCATION                                                
 Virtual only                                            |     | RECORD DATE   
 June 20, 2025 |
|:-------------------------|:----|:--------------------------------------------------------|:----|:--------------|
| 10:00am, ET              |     | https://ir.commvault.com/news-and-events/annual-meeting |     |               |

How can I participate in the virtual annual meeting?

Our virtual annual meeting format will enable all stockholders to participate, regardless of their location. To participate in the Annual Meeting, please access the meeting website at https://ir.commvault.com/news-and-events/annual-meeting and follow the instructions found there. You will be required to establish your identity as a stockholder in order to vote during the meeting. Please have the control number found on your Notice of Internet Availability of Proxy Materials available.

Stockholders can submit questions for the Annual Meeting’s question and answer session prior to or during the meeting through https://ir.commvault.com/news-and-events/annual-meeting . Once the meeting has concluded, the webcast will be available for replay on the Investor Relations section of our website for 12 months.

#### Who is entitled to vote at the Annual Meeting?
The record date for determining stockholders entitled to vote at the Annual Meeting was June 20, 2025. On that date, 44,524,933 shares of Commvault common stock were outstanding and entitled to vote. Each stockholder is entitled to one vote for each registered share of common stock held of record for each