Demmerle Stefan Insider Trading Activity
Demmerle Stefan has been net-selling over the last 12 months with 0 purchases and 11 sales across 1 company.
BWA is the most-traded position with 11 trades. The largest single transaction was a sale of BWA for $1.2M on May 8, 2026.
Performance Scorecard
Forward stock performance after each transaction by Demmerle Stefan. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -9.0% | 18% | 11 |
| 90 days | — | -15.9% | 13% | 8 |
| 120 days | — | -13.1% | 0% | 8 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersBWA · BORGWARNER INC
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
May 13, 2026 | BWA | Sell | 5,000 | $65.00 | $325K | −2.4% | President | |
May 11, 2026 | BWA | Sell | 5,000 | $62.00 | $310K | −2.3% | President | |
May 8, 2026 | BWA | Sell | 20,000 | $59.26 | $1.2M | −8.6% | President | |
Mar 10, 2026 | BWA | Sell | 2,500 | $53.03 | $133K | −1.1% | President | |
Nov 12, 2025 | BWA | Sell | 5,000 | $46.00 | $230K | −2.4% | President | |
Nov 11, 2025 | BWA | Sell | 15,000 | $45.52 | $683K | −6.7% | President | |
Sep 5, 2025 | BWA | Sell | 5,000 | $44.00 | $220K | −2.2% | President | |
Aug 13, 2025 | BWA | Sell | 5,000 | $40.50 | $203K | −2.1% | President | |
Aug 12, 2025 | BWA | Sell | 5,000 | $40.04 | $200K | −2.0% | President | |
Aug 12, 2025 | BWA | Sell | 10,000 | $38.95 | $390K | −4.1% | President | |
Aug 4, 2025 | BWA | Sell | 20,000 | $38.17 | $763K | −7.4% | President |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| BWA | BORGWARNER INC | 11 | $4.6M |
Other insiders at BORGWARNER INC
3 other tracked filers at BWA.