Summary
Updated Aug 30, 2026
Brian J. Porter is Director of STATE STREET CORP (STT). 3 SEC Form 4 filings on record going back to 2025, most recently on 22 May 2026. Most recent open-market trade: bought $312K of STT on 9 March 2026. Lifetime open-market purchases: $312K.
Recent Transactions
3Every recent SEC Form 4 transaction Brian J. Porter 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 Brian J. Porter 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.
- Hanley Ronald P. O. - $8.60M of STT open-market activity in the last 12 months
- Kathryn M. Horgan - $3.31M of STT open-market activity in the last 12 months
- W. Bradford Hu - $3.23M of STT open-market activity in the last 12 months
- John Plansky - $2.00M of STT open-market activity in the last 12 months
- Mostapha Tahiri - $1.47M of STT open-market activity in the last 12 months
- Michael L. Richards - $1.20M of STT 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 J. Porter?
Brian J. Porter is a corporate insider, tracked as Director of STATE STREET CORP (STT). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Brian J. Porter last file a Form 4?
The most recent primary Form 4 on record is dated 22 May 2026, one of 3 filings going back to 2025.
Has Brian J. Porter been buying or selling stock?
Recorded transactions: 1 open-market purchase ($312K) and 0 open-market sales across all tracked filings.
Where can I see all of Brian J. Porter'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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