Summary
Updated Aug 31, 2026
Thomas Eifert is VP, Quality Plan & Prog Mgmt of Allison Transmission Holdings Inc (ALSN). 4 SEC Form 4 filings on record going back to 2024, most recently on 9 December 2025. Most recent open-market trade: sold $174K of ALSN on 8 October 2024. Lifetime open-market sales: $364K.
Recent Transactions
4Every recent SEC Form 4 transaction Thomas Eifert has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Thomas Eifert go back to 2024: 4 primary Form 4 filings, an average of 1.3 per year. 6 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Thomas Eifert 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.
- David S. Graziosi - $3.55M of ALSN open-market activity in the last 12 months
- G. Frederick Bohley - $1.69M of ALSN open-market activity in the last 12 months
- John Coll - $328K of ALSN open-market activity in the last 12 months
- Scott A. Mell - $284K of ALSN open-market activity in the last 12 months
- Eric C. Scroggins - $281K of ALSN open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Thomas Eifert?
Thomas Eifert is a corporate insider, tracked as VP, Quality Plan & Prog Mgmt of Allison Transmission Holdings Inc (ALSN). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Thomas Eifert last file a Form 4?
The most recent primary Form 4 on record is dated 9 December 2025, one of 4 filings going back to 2024.
Has Thomas Eifert been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($364K) across all tracked filings.
Where can I see all of Thomas Eifert's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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