Summary
Updated Aug 31, 2026
Barbara Humpton is Director of MARA Holdings, Inc. (MARA). 4 SEC Form 4 filings on record going back to 2024, most recently on 14 February 2026.
Recent Transactions
3Every recent SEC Form 4 transaction Barbara Humpton has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Barbara Humpton go back to 2024: 4 primary Form 4 filings, an average of 1.3 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 reported open-market trades in the last 12 months at the companies Barbara Humpton 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.
- Frederick G. Thiel - $4.45M of MARA open-market activity in the last 12 months
- Salman Hassan Khan - $3.37M of MARA open-market activity in the last 12 months
- Michael Blitzer - $2.14M of USAR open-market activity in the last 12 months
- Zabi Nowaid - $1.39M of MARA open-market activity in the last 12 months
- Carolyn Trabuco - $325K of USAR open-market activity in the last 12 months
- Vicki Mealer-Burke - $227K of MARA 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 Barbara Humpton?
Barbara Humpton is a corporate insider, tracked as Director of MARA Holdings, Inc. (MARA). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Barbara Humpton last file a Form 4?
The most recent primary Form 4 on record is dated 14 February 2026, one of 4 filings going back to 2024.
Where can I see all of Barbara Humpton'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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