Who
David W. Heinzmann
Director
Company insider
Files Form 4 as: Director, Gentherm; President & CEO, Littelfuse; Director, Pulse Electronics.
In numbers
- Trades disclosed
- 311
- Buys
- 0
- Sells
- 27
- Bought
- $0
- Sold
- $38.8M
- Companies
- 3
- Companies where not an officer
- 2
- First trade
- 15 Mar 2006
- Last trade
- 14 May 2026
- Last filed
- 15 May 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 14 May 2026filed 15 May 2026 | THRM GenthermAuto Parts & Dealers | SEC FORM 4 Code A | —4,292 at $0.00 | filing |
| 14 May 2026filed 15 May 2026 | THRM GenthermAuto Parts & Dealers | SEC FORM 4 Code A | —4,292 at $0.00 | filing |
| 8 May 2025filed 9 May 2025 | THRM GenthermAuto Parts & Dealers | SEC FORM 4 Code A | —5,075 at $0.00 | filing |
| 26 Aug 2024filed 27 Aug 2024 | LFUS Littelfuseoption or derivative · Electrical Equipment & Grid | SEC FORM 4 Code M | —2,091 at $0.00 | filing |
| 26 Aug 2024filed 27 Aug 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Code M | $403K2,091 at $192.59 | filing |
| 26 Aug 2024filed 27 Aug 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Sold | $205K749 at $273.93 | filing |
| 26 Aug 2024filed 27 Aug 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Sold | $369K1,342 at $275.05 | filing |
| 23 Aug 2024filed 26 Aug 2024 | LFUS Littelfuseoption or derivative · Electrical Equipment & Grid | SEC FORM 4 Code M | —8,715 at $0.00 | filing |
| 23 Aug 2024filed 26 Aug 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Code M | $1.7M8,715 at $192.59 | filing |
| 23 Aug 2024filed 26 Aug 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Sold | $652K2,382 at $273.59 | filing |
| 23 Aug 2024filed 26 Aug 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Sold | $1.6M5,913 at $274.67 | filing |
| 23 Aug 2024filed 26 Aug 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Sold | $116K420 at $275.24 | filing |
| 31 Jul 2024filed 1 Aug 2024 | LFUS Littelfuseoption or derivative · Electrical Equipment & Grid | SEC FORM 4 Code M | —3,786 at $0.00 | filing |
| 31 Jul 2024filed 1 Aug 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Code M | $729K3,786 at $192.59 | filing |
| 31 Jul 2024filed 1 Aug 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Sold | $835K3,048 at $273.80 | filing |
| 31 Jul 2024filed 1 Aug 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Sold | $203K738 at $274.44 | filing |
| 18 Jul 2024filed 19 Jul 2024 | LFUS Littelfuseoption or derivative · Electrical Equipment & Grid | SEC FORM 4 Code M | —11 at $0.00 | filing |
| 18 Jul 2024filed 19 Jul 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Code M | $2,11811 at $192.59 | filing |
| 18 Jul 2024filed 19 Jul 2024 | LFUS LittelfuseElectrical Equipment & Grid | SEC FORM 4 Sold | $3,00311 at $273.00 | filing |
| 17 Jul 2024filed 18 Jul 2024 | LFUS Littelfuseoption or derivative · Electrical Equipment & Grid | SEC FORM 4 Code M | —300 at $0.00 | filing |
News
Littelfuse Launches TP7.0SMD-XC Automotive TVS Diodes with Extremely Low Clamping Voltage - Electronics / Instrumentation / RFID - Littelfuse, Inc.LFUS · newswiretoday.com · 14 Oct 2026
0 headlines in the last 90 days name David W. Heinzmann; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.