---
schema_version: "secwatch.filing_event.v1"
accession: "0000908255-26-000037"
form_type: "8-K"
ticker: "BWA"
cik: "0000908255"
company_name: "BORGWARNER INC"
filed_at: "2026-05-28T20:12:12+00:00"
generated_at: "2026-05-28T20:40:51.813123+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# BorgWarner appoints Stefan Demmerle as CTO and head of Battery Energy Systems

## Summary
- Effective July 1, 2026, Demmerle becomes VP, President/GM of Battery Energy Systems and CTO.
- He previously served as VP and President/GM of PowerDrive Systems since 2015.
- No changes to his compensatory arrangements are disclosed.

## SEC filing metadata
- accession: 0000908255-26-000037
- form_type: 8-K
- ticker: BWA
- cik: 0000908255
- company_name: BORGWARNER INC
- filed_at: 2026-05-28T20:12:12+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/908255/000090825526000037/0000908255-26-000037-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/908255/000090825526000037/bwa-20260526.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000908255-26-000037
- JSON: https://secwatch.observer/filing/0000908255-26-000037.json
- Plain text: https://secwatch.observer/filing/0000908255-26-000037.txt

## Source-grounded claims
- claim_id: a742550b2e
  claim: Stefan Demmerle was appointed as Vice President, President and General Manager of Battery Energy Systems and Chief Technology Officer at BORGWARNER INC.
  evidence_excerpt: On May 26, 2026, BorgWarner Inc. (the “Company”) appointed Stefan Demmerle to serve as Vice President of BorgWarner Inc., President and General Manager of Battery Energy Systems and Chief Technology Officer of BorgWarner Inc., effective July 1, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/908255/000090825526000037/0000908255-26-000037-index.htm

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