Pinterest Results Presentation Deck

Cost of Revenue 26% $178 Q322 S&M 30% $203 20% Non-GAAP costs and expenses (in millions) $177 Q422 30% $261 28% $167 Q123 30% $179 % of revenue 23% $164 Q223 - 31% 22% $217 $167 % of revenue Q323 26% $200 R&D 24% $165 Q322 G&A 10% 19% © 2023 Pinterest. All rights reserved. $165 Q422 9% $82 28% $168 Q123 11% % of revenue 23% $160 Q223 9% 20% $152 Q323 % of revenue 8% $63 Q323 $66 $66 $63 Q322 Q422 Q123 Q223 Q323 Q322 Q422 Q123 Q223 Note: Costs and expenses are non-GAAP financial measures, which exclude share-based compensation (SBC), amortization of acquired intangible assets, restructuring charges, 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. (7%) COR Y/Y (8%) R&D Y/Y (2%) S&M Y/Y (3%) G&A Y/Y 9

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