---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-024115"
form_type: "8-K"
ticker: "ONT"
cik: "0001643615"
company_name: "Onterris, Inc."
filed_at: "2025-02-20T23:59:59+00:00"
generated_at: "2026-05-26T08:56:33.500491+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Montrose Environmental appoints Vincent Colman to board of directors

## Summary
- Board size increased to 10 members; Vincent Colman fills newly created vacancy.
- Colman will serve as Class III director until 2026 Annual Meeting.
- Determined independent under NYSE rules and qualifies as audit committee financial expert.
- Appointed to Audit Committee; eligible for standard non-management director compensation prorated.
- No family relationships or material transactions with the company.

## SEC filing metadata
- accession: 0000950170-25-024115
- form_type: 8-K
- ticker: ONT
- cik: 0001643615
- company_name: Onterris, Inc.
- filed_at: 2025-02-20T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1643615/000095017025024115/0000950170-25-024115-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1643615/000095017025024115/meg-20250219.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-024115
- JSON: https://secwatch.observer/filing/0000950170-25-024115.json
- Plain text: https://secwatch.observer/filing/0000950170-25-024115.txt

## Key facts
- Executive change
  Vincent Colman was appointed as director at Onterris, Inc..
  - Action: appointed
  - Role: director
  source text: the board of directors (the “Board”) of Montrose Environmental Group, Inc. (the “Company”) increased the size of the Board to ten members and appointed Mr. Vincent Colman as a director to fill the newly created vacancy.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1643615/000095017025024115/0000950170-25-024115-index.htm

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