Summary
Updated Aug 31, 2026
Thomas A. Martin is President of KINDER MORGAN, INC. (KMI). 3 SEC Form 4 filings on record going back to 2024, most recently on 31 July 2025. Most recent open-market trade: sold $492K of KMI on 4 December 2024. Lifetime open-market sales: $995K.
Recent Transactions
4Every recent SEC Form 4 transaction Thomas A. Martin has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Thomas A. Martin go back to 2024: 3 primary Form 4 filings, an average of 1.0 per year. 2 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 A. Martin 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.
- Richard D. Kinder - $25.96M of KMI open-market activity in the last 12 months
- John W. Schlosser - $1.70M of KMI open-market activity in the last 12 months
- Kevin P. Grahmann - $659K of KMI open-market activity in the last 12 months
- David Patrick Michels - $600K of KMI open-market activity in the last 12 months
- Michael P. Garthwaite - $303K of KMI open-market activity in the last 12 months
- Anthony B. Ashley - $256K of KMI 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 A. Martin?
Thomas A. Martin is a corporate insider, tracked as President of KINDER MORGAN, INC. (KMI). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Thomas A. Martin last file a Form 4?
The most recent primary Form 4 on record is dated 31 July 2025, one of 3 filings going back to 2024.
Has Thomas A. Martin been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($995K) across all tracked filings.
Where can I see all of Thomas A. Martin'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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