---
schema_version: "secwatch.filing_event.v1"
accession: "0000824142-26-000048"
form_type: "8-K"
ticker: "AAON"
cik: "0000824142"
company_name: "AAON, INC."
filed_at: "2026-07-30T15:47:49+00:00"
generated_at: "2026-07-30T15:49:06.364972+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# AAON expands board to 11, appoints Buttermore and Jermain as independent directors

## Summary
- Board size increased from 9 to 11; bylaw amended to raise maximum to 11.
- Robert L. Buttermore III (Rockwell Automation SVP) and Patrick J. Jermain (former Plexus CFO) appointed effective July 28, 2026.
- Buttermore joins Compensation Committee; Jermain joins Audit Committee.
- Appointments part of board refreshment to support scaling in HVAC and mission-critical cooling markets.
- Both directors are independent and receive standard non-employee director compensation.

## SEC filing metadata
- accession: 0000824142-26-000048
- form_type: 8-K
- ticker: AAON
- cik: 0000824142
- company_name: AAON, INC.
- filed_at: 2026-07-30T15:47:49+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.02, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/824142/000082414226000048/0000824142-26-000048-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/824142/000082414226000048/aaon-20260728.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000824142-26-000048
- JSON: https://secwatch.observer/filing/0000824142-26-000048.json
- Plain text: https://secwatch.observer/filing/0000824142-26-000048.txt

## Key facts
- Executive change
  Robert L. Buttermore III was appointed as Director at AAON, INC..
  - Action: appointed
  - Role: Director
  source text: appointed Robert L. Buttermore III, and Patrick J. Jermain as independent directors to fill the newly created Class III positions, each effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/824142/000082414226000048/0000824142-26-000048-index.htm
- Executive change
  Patrick J. Jermain was appointed as Director at AAON, INC..
  - Action: appointed
  - Role: Director
  source text: appointed Robert L. Buttermore III, and Patrick J. Jermain as independent directors to fill the newly created Class III positions, each effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/824142/000082414226000048/0000824142-26-000048-index.htm

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