Pinterest Results Presentation Deck

Cost of Revenue 27% 132 Q121 S&M 24% 118 Non-GAAP costs and expenses (in millions) Q121 20% 126 Q221 25% 150 Q221 20% 125 Q321 23% 143 Q321 % of revenue 16% 139 Q421 21% 177 25% % of revenue Q421 144 Q122 28% 162 Q122 R&D 24% 115 Q121 G&A 9% 42 Q121 18% 111 Q221 9% 55 Q221 19% 118 Q321 8% 52 Q321 - 15% % of revenue 126 Q421 7% 61 25% Q421 143 Q122 % of revenue 10% 55 Q122 Note: Costs and expenses are non-GAAP financial measures, which exclude share-based compensation (SBC), amortization of acquired intangible assets, and non-cash charitable contributions. For a reconciliation of these non-GAAP financial measures to the most directly comparable GAAP financial measures, please see the tables included in the Appendix at the end of this release. Ⓒ2022 Pinterest. All rights reserved. +9% CORY/Y +24% R&D Y/Y +37% S&M Y/Y +31% G&A Y/Y 6

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