Summary
Updated Aug 30, 2026
Brian L. Glassberg is EVP, General Counsel & Secy. of GATX CORP (GATX). 3 SEC Form 4 filings on record, most recently on 25 February 2026. Most recent open-market trade: sold $174K of GATX on 24 February 2026. Lifetime open-market sales: $397K.
Recent Transactions
5Every recent SEC Form 4 transaction Brian L. Glassberg has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Brian L. Glassberg go back to 2026: 3 primary Form 4 filings, an average of 3.0 per year. 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 Brian L. Glassberg 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 A. Ellman - $3.28M of GATX open-market activity in the last 12 months
- Robert C. Lyons - $2.10M of GATX open-market activity in the last 12 months
- Robert Zmudka - $1.00M of GATX open-market activity in the last 12 months
- Jeffery R. Young - $509K of GATX open-market activity in the last 12 months
- John Sbragia - $343K of GATX open-market activity in the last 12 months
- Aken Jennifer van - $307K of GATX 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 Brian L. Glassberg?
Brian L. Glassberg is a corporate insider, tracked as EVP, General Counsel & Secy. of GATX CORP (GATX). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Brian L. Glassberg last file a Form 4?
The most recent primary Form 4 on record is dated 25 February 2026, one of 3 filings going back to 2026.
Has Brian L. Glassberg been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($397K) across all tracked filings.
Where can I see all of Brian L. Glassberg'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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