COMMVAULT SYSTEMS INC

Notes

1. Beginning in fiscal 2027, Customer support revenue has been further disaggregated between support associated with term-based software license arrangements ("Term-based support") and support associated with perpetual software license arrangements ("Perpetual support"). Subscription revenue has also been reclassified to include Term-based support revenue, in addition to Term-based license and SaaS revenues. Prior period amounts have been reclassified to conform to the current period presentation. These reclassifications have no impact on total revenues, net income, or the underlying revenue recognition for these arrangements.

In addition, Subscription ARR has been reclassified to include enterprise support, further aligning Subscription ARR with Subscription revenue. Enterprise support consists of recurring customer success services that provide our customers with enhanced support, strategic guidance and dedicated technical expertise, and is included in Term-based support. Prior to fiscal 2027, enterprise support was included only in Total ARR. Prior period amounts have been reclassified to conform to the current period presentation. Total ARR, which also included the annualized maintenance contract on perpetual licenses, is no longer disclosed.

2. Subscription ARR represents the annualized value of all active contracts as of the end of a reporting period attributable to term‑based licenses, maintenance and support services associated with term license arrangements, enterprise support, SaaS subscriptions, and consumption‑based arrangements, calculated by dividing the total active contract value by the number of days in the contract term and multiplying the result by 365. For consumption-based arrangements on a pay as you go model without a fixed commitment, the applicable ARR is calculated by annualizing the revenue contractually expected to be received in a given month based on actual monthly usage from a prior month. SaaS ARR includes only the cloud‑hosted portion of subscription ARR and is calculated using the same methodology.

These metrics should be viewed independently of GAAP revenue, deferred revenue and unbilled revenue and are not intended to be combined with or to replace those items. These metrics are not a forecast of future revenues. Management believes that reviewing these metrics, in addition to GAAP results, helps investors and financial analysts understand the value of Commvault's recurring revenue streams presented on an annualized basis. There is no direct GAAP comparative to ARR.

3. A reconciliation of GAAP to non-GAAP results has been provided in the reconciliation of GAAP to non-GAAP financial measures included in this press release. An explanation of these measures is also included under the heading "Use of Non-GAAP Financial Measures."

4. Commvault does not provide forward-looking guidance on a GAAP basis as certain financial information, the probable significance of which cannot be determined, is not available and cannot be reasonably estimated. See "Forward-looking non-GAAP measures" for additional explanation.

5. Subscription net dollar retention rate ("Subscription NRR") includes all contracts attributable to term‑based licenses, maintenance and support services associated with term license arrangements, enterprise support, SaaS subscriptions, and consumption‑based arrangements. Subscription NRR is calculated as the percentage of subscription ARR retained from existing customers at the start of an annual period after accounting for expansion revenue, churn, and downgrades, measured on an annualized basis using the trailing four quarter average. Acquired subscription ARR is excluded until the acquisition is fully integrated, which we generally expect to occur twelve months from the close date. We believe our subscription NRR offers valuable insight into the year-over-year expansion of our existing customer base, reflecting both increased utilization of current products and services as well as the adoption of additional offerings. There is no direct GAAP comparative to NRR.

6. Represents noncash stock-based compensation expense, exclusive of stock-based compensation expense related to Commvault's restructuring activities described below in Note 8.

7. Represents additional FICA and related payroll tax expense incurred by Commvault related to stock-based compensation.

8. Restructuring charges relate to two plans designed to optimize our cost structure, enhance organizational agility, align resources with strategic priorities, and reorganize our business technology function. These initiatives include workforce reductions, technology transitions, office lease closures, and the exit of operations in certain jurisdictions. The related charges primarily consist of severance and associated employee termination costs, stock‑based compensation expense resulting from modification events, and office closure and exit charges. As of September 30, 2026, the majority of these costs have been incurred and the remaining activities are anticipated to be completed in fiscal 2027.

9. Represents noncash amortization of intangible assets.

10. These charges relate to acquisition and business development activities, including legal, accounting and advisory services. Management believes, when used as a supplement to GAAP results, that the exclusion of these costs will help investors and financial analysts understand Commvault's operating results and underlying operational trends as compared to other periods.

11. Represents the change in the estimated fair value of the contingent consideration arrangement related to the acquisition of Appranix, Inc.

12. During the first quarter of fiscal 2026, we finalized the sale of our corporate headquarters and entered into a lease for a portion of the premises. These noncash charges represent accounting adjustments for a $1.3 million loss associated with the related lease terms and a $0.8 million adjustment to reflect the final sale price of the assets resulting in a net charge of $0.5 million recorded in general and administrative expense on the Consolidated Statements of Operations.

13. These charges relate to a non-routine business expense incurred during the first quarter of fiscal 2027 associated with strategic pricing and packaging initiatives. Given the non-recurring nature of the matter, these costs have been excluded from non-GAAP results as they are episodic in nature, directly tied to a discrete strategic initiative, and not reflective of ongoing operating performance.

14. These primarily legal and consulting expenses are related to our response in the second quarter of fiscal 2026 to a one-time security matter from the first quarter of fiscal 2026. Given the non-recurring nature of the matter, these costs have been excluded from non-GAAP results to provide a clearer view of ongoing operating performance.

15. The provision for income taxes is adjusted to reflect Commvault’s estimated non-GAAP effective tax rate of 24%.