Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies John Birchall 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.
- Thomas W. Powell - $50.96M of POWL open-market activity in the last 12 months
- Brett Alan Cope - $6.34M of POWL open-market activity in the last 12 months
- Michael William Metcalf - $3.82M of POWL open-market activity in the last 12 months
- Richard E. Williams - $2.03M of POWL open-market activity in the last 12 months
- Terry B. McKertcher - $1.67M of POWL open-market activity in the last 12 months
- William Marshall Mauney Jr. - $809K of POWL 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 John Birchall?
John Birchall is a corporate insider, tracked as Managing Director of POWELL INDUSTRIES INC (POWL). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did John Birchall last file a Form 4?
The most recent primary Form 4 on record is dated 10 February 2026, one of 6 filings going back to 2024.
Has John Birchall been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($2.67M) across all tracked filings.
Where can I see all of John Birchall'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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