Amplitude Results Presentation Deck

A GAAP to Non-GAAP Reconciliation Ⓒ2022 Amplitude Inc. All rights reserved. Reconciliation of gross profit and gross margin GAAP gross profit Plus: stock-based compensation expense and related employer payroll taxes Plus: amortization of acquired intangible assets Non-GAAP gross profit GAAP gross margin Non-GAAP adjustments Non-GAAP gross margin Reconciliation of operating loss and operating margin GAAP loss from operations Plus: stock-based compensation expense and related employer payroll taxes Plus: amortization of acquired intangible assets Plus: direct listing expenses Non-GAAP loss from operations GAAP operating margin Non-GAAP adjustments Non-GAAP operating margin Reconciliation of net loss GAAP net loss Plus: stock-based compensation expense and related employer payroll taxes Plus: amortization of acquired intangible assets Plus: direct listing expenses Non-GAAP net loss Reconciliation of net loss per share GAAP net loss per share, basic and diluted Non-GAAP adjustments to net loss Non-GAAP net loss per share, basic and diluted Weighted-average shares used in GAAP and non-GAAP per share calculation, basic and diluted Note: Certain figures may not sum due to rounding $ $ $ $ $ $ $ $ Three Months Ended March 31, 2022 2021 37,002 922 489 38,413 69.7% 2.7% 72.4% (21,991) 13,776 489 (7,726) (41.4%) 26.9% (14.6%) (22,220) 13,776 489 (7,955) (0.20) 0.13 (0.07) 109,553 $ $ $ $ $ $ $ $ 22,855 236 222 23,313 69.0% 1.4% 70.4% (6,149) 2,628 222 53 (3,246) (18.6%) 8.8% (9.8%) (6,439) 2,628 222 53 (3,536) (0.23) 0.10 (0.13) 27,926 ¹ Stock-based compensation expense-related charges include employer payroll tax-related expenses on employee stock transactions. 2 Margin represents percentage of GAAP revenue 24

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