---
schema_version: "secwatch.filing_event.v1"
accession: "0001057352-25-000063"
form_type: "8-K"
ticker: "CSGP"
cik: "0001057352"
company_name: "COSTAR GROUP, INC."
filed_at: "2025-04-29T23:59:59+00:00"
generated_at: "2026-05-23T03:21:17.503648+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# CoStar Q1 revenue up 12% to $732M; net loss $15M from Matterport impact

## Summary
- Revenue $732M (+12% YoY); net loss $15M ($0.04 EPS) includes $31M Matterport acquisition charge.
- Adjusted EBITDA $66M (+429% YoY); commercial information brands delivered 43% profit margin.
- CoStar net new bookings +68% YoY; LoopNet +200% YoY (highest since Q3 2022).
- Apartments.com added 4,300 properties in Q1, best quarter since Q1 2016.
- FY2025 revenue guidance $3.115–3.155B; adj EBITDA guidance $355–385M (12% margin).

## SEC filing metadata
- accession: 0001057352-25-000063
- form_type: 8-K
- ticker: CSGP
- cik: 0001057352
- company_name: COSTAR GROUP, INC.
- filed_at: 2025-04-29T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- 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/1057352/000105735225000063/0001057352-25-000063-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1057352/000105735225000063/csgp-20250429.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001057352-25-000063
- JSON: https://secwatch.observer/filing/0001057352-25-000063.json
- Plain text: https://secwatch.observer/filing/0001057352-25-000063.txt

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