Amplitude Results Presentation Deck

(8 A Revenue Guidance Non-GAAP Operating Income (Loss) Non-GAAP Net Income Per Share, Diluted Weighted Average Shares Outstanding, Diluted Q3 2023 $69.7 $70.3M +13% to +14% Y/Y $0.6 - $1.0M $0.02 $0.03 128.3M shares FY 2023 $273.6- $275.6M +15% to +16% Y/Y $(7.6) - $(5.2)M $0.02 $0.04 127.6M shares An outlook for GAAP income (loss) from operations, GAAP operating margin, GAAP net income (loss), and GAAP net income (loss) per share, and a reconciliation to GAAP loss from operations, GAAP operating margin, GAAP net income (loss), and GAAP net income (loss) per share has not been provided as the quantification of certain items included in the calculation of GAAP income (loss) from operations, GAAP operating margin, and GAAP net loss per share cannot be reasonably calculated or predicted at this time without unreasonable efforts. For example, the non-GAAP adjustment for stock-based compensation expense requires additional inputs such as the number and value of awards granted that are not currently ascertainable, and the non-GAAP adjustment for amortization of acquired intangible assets depends on the timing and value of intangible assets acquired that cannot be accurately forecasted. © 2023 Amplitude Inc. All Rights Reserved. 17

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