Company: CVLT
Filing Date: 2025-06-25
Form Type: DEF 14A
Source: 0001169561-25-000059
Chunk: 64

Company: COMMVAULT SYSTEMS INC
Filing Date: 2025-06-25
Form: DEF 14A
Chunk 64
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 paid with shares of Common Stock acquired through a prior exercise of an ISO, gain will be realized on the shares given up (taxed as ordinary income) if those shares of Common Stock have not been held for the minimum ISO holding period (two years from the date of grant and one year from the date of transfer), but the exchange will not affect the tax treatment of the shares of Common Stock received.

#### SARs
A participant generally will not realize any taxable income upon the grant of a SAR. Upon the exercise of a SAR, the participant will recognize ordinary income in an amount equal to the amount of cash and/or the fair market value, at the date of exercise, of the shares of Common Stock received as a result of such exercise. Commvault will generally be entitled to a deduction in the same amount.

#### Full Value Awards
The federal income tax consequences of a Full Value Award will depend on the type of award, and in particular, whether the shares are subject to a substantial risk of forfeiture (determined under Internal Revenue Code rules) at the time of the grant. If the shares are subject to a substantial risk of forfeiture, the participant will not recognize taxable income at the time of the grant. Instead, when the restrictions on the shares lapse (meaning the shares are no longer subject to a substantial risk of forfeiture), the participant will recognize ordinary taxable income in an amount equal to the fair market value of the shares at that time. If the shares are not subject to a substantial risk of forfeiture or if the participant elects to be taxed at the time of the grant of such shares under section 83(b) of the Internal Revenue Code, the participant will recognize taxable income when the shares are granted in an amount equal to the fair market value of such shares at the time, determined without regard to any of the restrictions. If the shares are forfeited before the restrictions lapse, the participant will not be entitled to a corresponding deduction. The participant’s tax basis in the shares will be the amount recognized as income attributable to such shares. Gain or loss recognized by the participant on a subsequent disposition of any such shares is capital gain or loss if the shares are otherwise capital assets.

#### 61COMMVAULT SYSTEMS, INC. |2025 PROXY STATEMENT
Table of Contents

| PROPOSAL NO. 4: APPROVAL OF ADDITIONAL SHARES FOR ISSUANCE UNDER THE 2016 OMNIBUS INCENTIVE PLAN   | |     | FULL VALUE AWARDS |

In the case of other Full Value Awards