---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-094144"
form_type: "8-K"
ticker: "ONT"
cik: "0001643615"
company_name: "Onterris, Inc."
filed_at: "2025-07-07T23:59:59+00:00"
generated_at: "2026-05-18T09:17:09.459433+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Montrose Environmental redeems $62.2M Series A-2 Preferred, eliminating board appointment right

## Summary
- Redeemed all outstanding Series A-2 Preferred Stock from OCM Montrose II Holdings on July 1, 2025.
- Stated value of $62.2 million paid in cash from cash on hand and credit facility.
- No shares of A-2 Preferred remain outstanding; Holder loses right to appoint a board member.

## SEC filing metadata
- accession: 0000950170-25-094144
- form_type: 8-K
- ticker: ONT
- cik: 0001643615
- company_name: Onterris, Inc.
- filed_at: 2025-07-07T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1643615/000095017025094144/0000950170-25-094144-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1643615/000095017025094144/meg-20250701.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-094144
- JSON: https://secwatch.observer/filing/0000950170-25-094144.json
- Plain text: https://secwatch.observer/filing/0000950170-25-094144.txt

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