---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-027818"
form_type: "8-K"
ticker: "ONT"
cik: "0001643615"
company_name: "Onterris, Inc."
filed_at: "2025-02-26T23:59:59+00:00"
generated_at: "2026-05-26T03:39:52.694284+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Montrose Environmental Group reports record Q4 and full year 2024 revenue, issues 2025 guidance

## Summary
- Q4 2024 revenue of $189.1M, up 14.1% year-over-year; net loss of $28.2M due to $18.0M SARs charge
- Full year 2024 revenue of $696.4M, up 11.6%; Consolidated Adjusted EBITDA of $95.8M, up 21.9%
- 2025 guidance: revenue $735M-$785M, Consolidated Adjusted EBITDA $101M-$108M, organic growth 7%-9%
- New $500M Senior Secured Credit Agreement (term loan $200M, revolver $300M) maturing 2030
- Record Q4 Adjusted EBITDA of $27.2M (14.4% margin) vs $17.5M (10.5%) in prior year

## SEC filing metadata
- accession: 0000950170-25-027818
- form_type: 8-K
- ticker: ONT
- cik: 0001643615
- company_name: Onterris, Inc.
- filed_at: 2025-02-26T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1643615/000095017025027818/0000950170-25-027818-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1643615/000095017025027818/meg-20250226.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-027818
- JSON: https://secwatch.observer/filing/0000950170-25-027818.json
- Plain text: https://secwatch.observer/filing/0000950170-25-027818.txt

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