---
schema_version: "secwatch.filing_event.v1"
accession: "0001595974-23-000017"
form_type: "8-K"
ticker: "MGNI"
cik: "0001595974"
company_name: "MAGNITE, INC."
filed_at: "2023-05-10T23:59:59+00:00"
generated_at: "2026-06-15T06:24:38.113049+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Magnite Q1 revenue ex-TAC up 8% YoY; CTV segment grows 10%; net loss widens to $98.7M

## Summary
- Total revenue $130.2M (+10% YoY); revenue ex-TAC $116.0M (+8% YoY).
- CTV revenue ex-TAC $46.4M (+10% YoY), driven by programmatic shift.
- Net loss $98.7M ($0.73 loss per share) vs. $44.6M loss in Q1 2022.
- Adjusted EBITDA $23.3M (20% margin); non-GAAP EPS $0.04.
- Q2 guidance: revenue ex-TAC $132-136M; CTV rev ex-TAC $56-58M.

## SEC filing metadata
- accession: 0001595974-23-000017
- form_type: 8-K
- ticker: MGNI
- cik: 0001595974
- company_name: MAGNITE, INC.
- filed_at: 2023-05-10T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1595974/000159597423000017/0001595974-23-000017-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1595974/000159597423000017/mgni-20230510.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001595974-23-000017
- JSON: https://secwatch.observer/filing/0001595974-23-000017.json
- Plain text: https://secwatch.observer/filing/0001595974-23-000017.txt

## Key facts
- Earnings Releases
  MAGNITE, INC. reported the quarter ended March 31, 2023 results: revenue $130.2 million, net income Net loss of $98.7 million, EPS loss per share of $0.73. Guidance reaffirmed.
  - Period: the quarter ended March 31, 2023
  - Revenue: $130.2 million
  - Net income: Net loss of $98.7 million
  - EPS: loss per share of $0.73
  - Guidance: reaffirmed
  - Result: reported results
  source text: the world's largest independent sell-side advertising company, today reported its results of operations for the quarter ended March 31, 2023. Q1 2023 Highlights: • Revenue of $130.2 million, up 10% year-over-year • Revenue ex-TAC (1) of $116.0 million, up 8% year-over-year • Revenue ex-TAC (1) attributable to CTV of $46.4 million, up 10% year-over-year • Net loss of
  evidence_url: https://www.sec.gov/Archives/edgar/data/1595974/000159597423000017/0001595974-23-000017-index.htm

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