We have included information about certain non-GAAP financial measures in this release. We supplement the reporting of our financial information determined under GAAP with certain non-GAAP financial information. The non-GAAP financial information presented excludes certain significant items that may not be indicative of, or are unrelated to, results from our ongoing business operations. We believe that these non-GAAP measures provide investors with additional insight into our ongoing business performance. These non-GAAP measures should not be considered in isolation or as a substitute for, or superior to, the related GAAP measures, and other companies may define such measures differently. We encourage investors to review our financial statements and publicly-filed reports in their entirety and not to rely on any single financial measure.

The following tables present a reconciliation of our estimated preliminary Adjusted EBITDA loss, non-GAAP gross profit, non-GAAP gross margin and non-GAAP operating expenses for the three months ended December 31, 2023 to the most directly comparable financial measure presented in accordance with GAAP. EBITDA is defined as earnings before interest, taxes, depreciation and amortization. Adjusted EBITDA further excludes items of income or loss that we characterize as unrepresentative of our ongoing operations. Such items are excluded from net income or loss to determine Adjusted EBITDA. Management believes this measure provides investors meaningful insight into results from ongoing operations. Non-GAAP gross profit, non-GAAP gross margin and non-GAAP operating expenses further exclude items of income or loss that we characterize as unrepresentative of our ongoing operations. Such items are excluded from the applicable GAAP financial measure. Management believes these non-GAAP measures provide investors meaningful insight into results from ongoing operations.