Summary
Updated Aug 31, 2026
J. Thomas Presby files SEC Form 4 reports at Montrose Environmental Group, Inc. (ONT). 3 SEC Form 4 filings on record going back to 2024, most recently on 4 March 2026. Most recent open-market trade: sold $14K of ONT on 4 March 2026. Lifetime open-market sales: $289K.
Recent Transactions
5Every recent SEC Form 4 transaction J. Thomas Presby has reported, most recent first.
Trading Pattern
InsiderAlpha's records for J. Thomas Presby go back to 2024: 3 primary Form 4 filings, an average of 1.0 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 J. Thomas Presby 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.
- Vijay Manthripragada - $3.37M of ONT open-market activity in the last 12 months
- Nasym Afsari - $1.24M of ONT open-market activity in the last 12 months
- Peter Graham - $510K of ONT open-market activity in the last 12 months
- Jose Revuelta - $212K of ONT open-market activity in the last 12 months
- Allan Dicks - $100K of ONT 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 J. Thomas Presby?
J. Thomas Presby is a corporate insider of Montrose Environmental Group, Inc. (ONT). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did J. Thomas Presby last file a Form 4?
The most recent primary Form 4 on record is dated 4 March 2026, one of 3 filings going back to 2024.
Has J. Thomas Presby been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($289K) across all tracked filings.
Where can I see all of J. Thomas Presby'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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