---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-068268"
form_type: "8-K"
ticker: "ONT"
cik: "0001643615"
company_name: "Onterris, Inc."
filed_at: "2025-05-09T23:59:59+00:00"
generated_at: "2026-05-22T01:47:26.908293+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Montrose Environmental shareholders approve board declassification, phase-in of annual director elections

## Summary
- Shareholders approved declassification amendment with 99.95% of votes for; phased-in annual elections begin at 2026 meeting.
- Three Class II directors (Presby, Price, Risi Field) elected to terms expiring at 2028 annual meeting.
- Ratification of Deloitte & Touche as independent auditor for FY2025 passed with ~99.7% of votes cast.
- Non-binding Say-on-Pay proposal approved with ~87.3% of votes cast (excluding broker non-votes).
- Certificate of Amendment filed with Delaware Secretary of State on May 8, 2025, effective immediately.

## SEC filing metadata
- accession: 0000950170-25-068268
- form_type: 8-K
- ticker: ONT
- cik: 0001643615
- company_name: Onterris, Inc.
- filed_at: 2025-05-09T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.03, 5.07, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1643615/000095017025068268/0000950170-25-068268-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1643615/000095017025068268/meg-20250506.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-068268
- JSON: https://secwatch.observer/filing/0000950170-25-068268.json
- Plain text: https://secwatch.observer/filing/0000950170-25-068268.txt

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