---
schema_version: "secwatch.filing_event.v1"
accession: "0001595974-26-000010"
form_type: "8-K"
ticker: "MGNI"
cik: "0001595974"
company_name: "MAGNITE, INC."
filed_at: "2026-02-25T23:59:59+00:00"
generated_at: "2026-05-16T00:18:47.796834+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Magnite Q4 revenue $205.4M (+6% YoY); CTV contribution ex-TAC up 20% (32% ex-political)

## Summary
- Contribution ex-TAC of $195.1M (+8% YoY, +16% ex-political) at high end of $191-$196M guidance.
- CTV contribution ex-TAC hit $93.6M (+20% YoY, +32% ex-political), above guidance of $87-$89M.
- Net income $123.1M ($0.80 diluted) included $90M one-time tax benefit; adjusted EBITDA $83.8M (43% margin).
- Q1 2026 guidance: contribution ex-TAC $157-$161M; full-year 2026 growth at least 11%, margin >35%.
- Board authorized $200M share buyback program through Feb 2028; $79.2M repurchased in 2025.

## SEC filing metadata
- accession: 0001595974-26-000010
- form_type: 8-K
- ticker: MGNI
- cik: 0001595974
- company_name: MAGNITE, INC.
- filed_at: 2026-02-25T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1595974/000159597426000010/0001595974-26-000010-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1595974/000159597426000010/mgni-20260225.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001595974-26-000010
- JSON: https://secwatch.observer/filing/0001595974-26-000010.json
- Plain text: https://secwatch.observer/filing/0001595974-26-000010.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.