Quick Takeaways
- Stefan Demmerle has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $12,395,550.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Stefan Demmerle
- Location
- Auburn Hills, MI
- Summary
- The estimated net worth of Stefan Demmerle is at least $12,395,550 dollars as of 11 Mar 2026. Stefan Demmerle is the Vice President of BORGWARNER INC and owns shares of BORGWARNER INC (BWA) stock worth about $12.4M.
- Signature
- Miyuki P. Oshima as attorney-in-fact for Stefan Demmerle
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Stefan Demmerle and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: BORGWARNER INC ($12,395,550).
- Past-year value change for that position: -$2,820,934.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Stefan Demmerle
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| BWA | BORGWARNER INC | Vice President | $12,395,550 | -$2,820,934 | -19% | 10 Mar 2026 |
Insider Transactions Reported by Stefan Demmerle:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.