---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-104178"
form_type: "8-K"
ticker: "ONT"
cik: "0001643615"
company_name: "Onterris, Inc."
filed_at: "2025-08-06T23:59:59+00:00"
generated_at: "2026-05-17T19:31:50.406911+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Montrose Q2 revenue surges 35% to $234.5M; net income of $18.4M vs loss, raises FY guidance

## Summary
- Revenue of $234.5M, up 35.3% YoY; net income of $18.4M ($0.42 EPS) vs net loss of $10.2M a year ago.
- Consolidated Adjusted EBITDA of $39.6M, up 69.8% YoY; margin expanded 340 bps to 16.9%.
- Raised full-year 2025 revenue guidance to $795M-$835M and Adjusted EBITDA to $111M-$117M.
- Redeemed remaining $62.2M of Series A-2 Preferred Stock on July 1, 2025, simplifying capital structure.
- First-half operating cash flow improved $48.5M to $27.4M; leverage ratio 2.5x as of June 30.

## SEC filing metadata
- accession: 0000950170-25-104178
- form_type: 8-K
- ticker: ONT
- cik: 0001643615
- company_name: Onterris, Inc.
- filed_at: 2025-08-06T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1643615/000095017025104178/0000950170-25-104178-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1643615/000095017025104178/meg-20250806.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-104178
- JSON: https://secwatch.observer/filing/0000950170-25-104178.json
- Plain text: https://secwatch.observer/filing/0000950170-25-104178.txt

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