Summary
Updated Aug 30, 2026
Robert B. Callahan is Chief Human Resource Officer of POWELL INDUSTRIES INC (POWL). 3 SEC Form 4 filings on record, most recently on 23 December 2024.
Recent Transactions
5Every recent SEC Form 4 transaction Robert B. Callahan has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Robert B. Callahan 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
- John Birchall - $1.40M 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 Robert B. Callahan?
Robert B. Callahan is a corporate insider, tracked as Chief Human Resource Officer of POWELL INDUSTRIES INC (POWL). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Robert B. Callahan last file a Form 4?
The most recent primary Form 4 on record is dated 23 December 2024, one of 3 filings going back to 2024.
Where can I see all of Robert B. Callahan'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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