Summary
Updated Aug 30, 2026
Mary Katherine Lawler is Director of Quanex Building Products CORP (NX). 6 SEC Form 4 filings on record going back to 2024, most recently on 1 June 2026. Most recent open-market trade: sold $5.04M of ITW on 10 February 2026. Lifetime open-market sales: $8.22M.
Recent Transactions
6Every recent SEC Form 4 transaction Mary Katherine Lawler 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 Mary Katherine Lawler 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.
- Teleios Capital Partners GmbH - $3.23M of NX open-market activity in the last 12 months
- Bradley E. Hughes - $99K of NX 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 Mary Katherine Lawler?
Mary Katherine Lawler is a corporate insider, tracked as Director of Quanex Building Products CORP (NX). InsiderAlpha holds 6 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 Mary Katherine Lawler submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Mary Katherine Lawler been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($8.22M) across all tracked filings.
Where can I see all of Mary Katherine Lawler'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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