---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-118472"
form_type: "8-K"
ticker: "AIR"
cik: "0000001750"
company_name: "AAR CORP"
filed_at: "2025-12-04T23:59:59+00:00"
generated_at: "2026-05-16T14:50:58.305291+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# AAR CFO Sean Gillen resigns effective Dec 11; VP Sarah Flanagan named Interim CFO

## Summary
- Sean Gillen resigns as SVP & CFO effective Dec 11, 2025, to pursue opportunity outside aviation industry.
- Departure is not due to any disagreement with AAR on operations, policies, or financial reporting.
- Sarah Flanagan, VP Financial Operations, appointed Interim CFO effective Dec 11, 2025.
- Flanagan joined AAR in 2012, previously served as Group CFO for the largest business segment.
- Gillen will remain an employee through Dec 19 to assist transition.

## SEC filing metadata
- accession: 0001104659-25-118472
- form_type: 8-K
- ticker: AIR
- cik: 0000001750
- company_name: AAR CORP
- filed_at: 2025-12-04T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1750/000110465925118472/0001104659-25-118472-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1750/000110465925118472/tm2532757d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-118472
- JSON: https://secwatch.observer/filing/0001104659-25-118472.json
- Plain text: https://secwatch.observer/filing/0001104659-25-118472.txt

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