---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-22-011330"
form_type: "8-K"
ticker: "ONT"
cik: "0001643615"
company_name: "Onterris, Inc."
filed_at: "2022-06-08T23:59:59+00:00"
generated_at: "2026-06-25T03:32:57.769541+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Director Peter Jonna resigns from Montrose Environmental board effective June 10, 2022

## Summary
- Peter Jonna, Oaktree-appointed director, resigns from Montrose board effective June 10, 2022.
- Resignation results from Jonna's resignation from Oaktree; no disagreement with the Company.
- Oaktree elects not to replace him; vacancy remains on board for an Oaktree designee.

## SEC filing metadata
- accession: 0000950170-22-011330
- form_type: 8-K
- ticker: ONT
- cik: 0001643615
- company_name: Onterris, Inc.
- filed_at: 2022-06-08T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1643615/000095017022011330/0000950170-22-011330-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1643615/000095017022011330/meg-20220602.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-22-011330
- JSON: https://secwatch.observer/filing/0000950170-22-011330.json
- Plain text: https://secwatch.observer/filing/0000950170-22-011330.txt

## Key facts
- Executive change
  Peter Jonna resigned as Director at Onterris, Inc..
  - Action: resigned
  - Role: Director
  source text: On June 2, 2022, Peter Jonna, a member of the Board of Directors of Montrose Environmental Group, Inc. (the “Company) appointed by an affiliate of Oaktree Capital Management, L.P. (“Oaktree”) pursuant to their right to appoint a director set forth in the Certificate of Designation of Cumulative Series A-2 Preferred Stock, notified the Company of his intention to resign from the Company’s Board of Directors concurrent with his resignation from Oaktree effective June 10, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1643615/000095017022011330/0000950170-22-011330-index.htm

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