Summary
Updated Aug 31, 2026
Robert H. Steelhammer files SEC Form 4 reports at PROSPERITY BANCSHARES INC (PB). 4 SEC Form 4 filings on record going back to 2024, most recently on 27 May 2026. Most recent open-market trade: sold $104K of PB on 27 May 2026. Lifetime open-market sales: $338K.
Recent Transactions
5Every recent SEC Form 4 transaction Robert H. Steelhammer 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 H. Steelhammer 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.
- Ned S. Holmes - $3.91M of PB open-market activity in the last 12 months
- Perry Mueller Jr. - $1.61M of PB open-market activity in the last 12 months
- Leah Henderson - $77K of PB open-market activity in the last 12 months
- Harrison Stafford II - $57K of PB 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 H. Steelhammer?
Robert H. Steelhammer is a corporate insider of PROSPERITY BANCSHARES INC (PB). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Robert H. Steelhammer last file a Form 4?
The most recent primary Form 4 on record is dated 27 May 2026, one of 4 filings going back to 2024.
Has Robert H. Steelhammer been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($338K) across all tracked filings.
Where can I see all of Robert H. Steelhammer'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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