Insiders who reported open-market trades in the last 12 months at the companies Louis T. Petrillo 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 M. Pasquesi - $19.97M in ACGL purchases and sales in the last 12 months
Maamoun Rajeh - $4.56M in ACGL purchases and sales in the last 12 months
Nicolas Papadopoulo - $2.11M in ACGL purchases and sales in the last 12 months
Francois Morin - $1.85M in ACGL purchases and sales in the last 12 months
David Gansberg - $569K in ACGL purchases and sales in the last 12 months
Louis T. Petrillo is a corporate insider, tracked as Officer of Subsidiary of ARCH CAPITAL GROUP LTD. (ACGL). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Louis T. Petrillo last file a Form 4?
The most recent primary Form 4 on record is dated 5 March 2026, one of 6 filings going back to 2024.
Has Louis T. Petrillo been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($1.57M) across all tracked filings.
Louis T. Petrillo is Officer of Subsidiary of ARCH CAPITAL GROUP LTD. (ACGL). 6 SEC Form 4 filings on record going back to 2024, most recently on 5 March 2026. Most recent open-market trade: sold $1.57M of ACGL on 9 May 2025. Lifetime open-market sales: $1.57M.
Recent transactions
12
The latest 12 SEC Form 4 transactions reported by Louis T. Petrillo.
InsiderAlpha's records for Louis T. Petrillo go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
