PubMatic (PUBM) Q4 2025 earnings summary

Executive summary

• Delivered strong Q4 and full-year 2025 results, with Q4 revenue of $80.0M, adjusted EBITDA of $27.8M (35% margin), and GAAP net income of $6.7M, exceeding guidance and driven by growth in CTV, mobile app, and AI-powered revenues.

• Strategic repositioning and investments in AI and automation have strengthened the business model, enabling operational efficiencies, new revenue streams, and a competitive moat, with double-digit revenue growth expected in the second half of 2026.

• Leadership in agentic AI and direct buying solutions (Activate, AgenticOS) is driving adoption, with over 250 agentic deals and rapid uptake among brands and agencies.

• Underlying business grew 18% year-over-year in Q4 2025, representing 83% of total revenue, excluding legacy DSP and political advertising.

• AI-driven automation and infrastructure initiatives delivered significant operational efficiencies and margin leverage.

Financial highlights

• FY 2025 revenue was $282.9M, with Q4 2025 revenue of $80.0M; Q4 adjusted EBITDA margin reached 35% with adjusted EBITDA of $27.8M.

• FY 2025 gross profit was $179.8M (64% margin); adjusted EBITDA was $61.6M (22% margin); GAAP net loss for FY 2025 was $(14.5)M, or $(0.31) per diluted share.

• Free cash flow for 2025 was $46.2M, up 32% year-over-year; net operating cash flow was $81.1M, up 10%.

• Non-GAAP net income for Q4 2025 was $14.4M (18% margin), with diluted EPS of $0.29; FY 2025 non-GAAP net income was $16.7M, or $0.33 per diluted share.

• Cost of revenue declined 20% year-over-year per unit, with 60% of processed impressions from CTV and mobile app.

Outlook and guidance

• Q1 2026 revenue expected between $58M–$60M; adjusted EBITDA guidance is $(0.5)M to $1.0M, reflecting FX headwinds and DSP buyer impact.

• Double-digit revenue growth and margin expansion anticipated in the second half of 2026 as DSP headwinds subside and AI efficiencies scale.

• Full-year 2026 CapEx projected at $15M–$19M, shifting focus to AI workload support.