Katherine Brennan
SVP and General Counsel · MARSH & MCLENNAN COMPANIES, INC.
- 2026
- Sep 3, 2026
- 4
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Katherine Brennan 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.
- John Q. Doyle - $12.73M in MRSH purchases and sales in the last 12 months
- Lloyd M. Yates - $2.11M in MRSH purchases and sales in the last 12 months
- John Jude Jones - $1.66M in MRSH purchases and sales in the last 12 months
- Martin South - $1.35M in MRSH purchases and sales in the last 12 months
- Nicholas Mark Studer - $706K in MRSH purchases and sales in the last 12 months
- Paul Beswick - $141K in MRSH purchases and sales in the last 12 months
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Frequently asked questions
Who is Katherine Brennan?
Katherine Brennan is a corporate insider, tracked as SVP and General Counsel of MARSH & MCLENNAN COMPANIES, INC. (MRSH). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Katherine Brennan submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Katherine Brennan been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($225K) across all tracked filings.
