Pinterest Results Presentation Deck

Q223 Business Highlights We're growing our inspired engagement • We grew our global user base year over year to 465M MAUS. Engagement metrics like sessions, impressions, and saves grew faster than MAUs, indicating we're deepening our engagement with our user base. ● ● ● ● In H1, we incorporated propensity to share into our Al recommender models, improving retention of our core users, and growing revisits of dormant users. We launched a browsing module to help users find new use cases on the platform, leading to a meaningful lift in revisitations. • We saw strong growth in the number of MAUs engaging with emerging verticals such as men's fashion, autos, health and travel in the first half of this year. Global Mobile app MAUs grew 16% year over year, and our U.S. and Canada mobile app MAUs grew 9% year over year. Gen Z users continue to grow on Pinterest. In Q2, Gen Z were our largest contributor to overall engagement growth and the fastest growing cohort, growing double digits and accounting for a larger portion of our overall mix. ● We're expanding our advertiser solutions • We launched travel catalogs this quarter, allowing advertisers to reach users who are in the midst of planning, organizing, and taking action on their travel dreams. We've steadily grown the percentage of revenue from large advertisers who adopted our conversion API solution. • In July, we brought our mobile deep linking product, or MDL, to general availability. • We made our Premier Spotlight ad format available for all advertisers, and we are seeing early adoption from a large number of brand advertisers. • We expanded our use of GPU serving from core engagement Al models to our ads delivery models, which enabled us to use models that were 100x larger than before in ads as well as organic. The cumulative impact was a 5% reduction in cost-per-action and over 10% lift in click-through rates. © 2023 Pinterest. All rights reserved. 5

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