Filings (90d)
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies David W. Heinzmann files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Wayne S. Kauffman III - $203K in THRM purchases and sales in the last 12 months
- Breisacher Nicholas - $40K in THRM purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is David W. Heinzmann?
David W. Heinzmann is a corporate insider of Gentherm Inc (THRM). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did David W. Heinzmann last file a Form 4?
The most recent primary Form 4 on record is dated 15 May 2026, one of 2 filings going back to 2025.
