Summary
Updated Aug 31, 2026
Katherine Bolanowski is General Counsel, VP, Secretary of GIBRALTAR INDUSTRIES, INC. (ROCK). 12 SEC Form 4 filings on record going back to 2024, most recently on 1 July 2026. Most recent open-market trade: bought $5K of ROCK on 22 May 2026. Lifetime open-market purchases: $50K.
Recent Transactions
7Every recent SEC Form 4 transaction Katherine Bolanowski has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Katherine Bolanowski go back to 2024: 12 primary Form 4 filings, an average of 4.0 per year. The typical open-market purchase is $25K (2 buys totaling $50K). The largest single buy on record is $45K of ROCK in 2026. 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 Katherine Bolanowski 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.
- William T. Bosway - $1.01M of ROCK open-market activity in the last 12 months
- James S. Metcalf - $502K of ROCK open-market activity in the last 12 months
- Joseph A. Lovechio - $35K of ROCK 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 Katherine Bolanowski?
Katherine Bolanowski is a corporate insider, tracked as General Counsel, VP, Secretary of GIBRALTAR INDUSTRIES, INC. (ROCK). InsiderAlpha holds 12 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Katherine Bolanowski submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Katherine Bolanowski been buying or selling stock?
Recorded transactions: 2 open-market purchases ($50K) and 0 open-market sales across all tracked filings.
Where can I see all of Katherine Bolanowski'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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