Pinterest Results Presentation Deck

GAAP to non-GAAP costs and expenses reconciliation (in millions) Cost of revenue Research and development Sales and marketing General and administrative Total costs and expenses GAAP $182.6 254.7 229.9 86.8 $753.9 Quarter ended September 30, 2022 Share-based compensation $2.2 89.7 23.3 21.0 $136.2 Note: Totals may not sum due to rounding. © 2023 Pinterest. All rights reserved. Amortization $2.0 0.0 3.4 0.2 $5.5 Other expense $0.0 0.0 0.0 0.0 $0.0 Non-GAAP $178.4 165.0 203.2 65.6 $612.2 14

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