Sarah Chen

Senior Reporter, Platforms

Sarah Chen covers platform ad products and revenue models, with a focus on Meta, TikTok, and Google. She previously reported on mobile advertising at a major industry publication.

Background

8 years covering platform advertising. Former mobile ad reporter at a major industry publication.

All articles by Sarah Chen

TikTok Shop ad CPMs rose 28% in Q1 as merchant competition intensified

Average cost-per-mille on TikTok Shop's in-feed ad placements increased 28% quarter-over-quarter in Q1 2026, driven by a surge in merchant onboarding and category expansion into electronics and home goods.

Search & Retail MediaSarah Chen · 2026-04-20