Summary
Updated Aug 31, 2026
Michael A. Henderson is Executive VP, Operations of MARATHON OIL CORP (MRO). 1 SEC Form 4 filing on record, dated 22 November 2024.
Recent Transactions
2Every recent SEC Form 4 transaction Michael A. Henderson has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Michael A. Henderson go back to 2024: 1 primary Form 4 filing, an average of 0.3 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who have reported open-market trades at the same companies as Michael A. Henderson. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Lee M. Tillman - $7.46M of MRO open-market activity on record
- Patrick Wagner - $1.04M of MRO open-market activity on record
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Michael A. Henderson?
Michael A. Henderson is a corporate insider, tracked as Executive VP, Operations of MARATHON OIL CORP (MRO). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Michael A. Henderson last file a Form 4?
The only primary Form 4 on record is dated 22 November 2024.
Where can I see all of Michael A. Henderson'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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