Insiders who reported open-market trades in the last 12 months at the companies Adam D. Portnoy 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.
Laurie B. Burns - $204K in SVC purchases and sales in the last 12 months
William A. Lamkin - $190K in SVC purchases and sales in the last 12 months
Adam D. Portnoy is a corporate insider, tracked as Director of Industrial Logistics Properties Trust (ILPT). InsiderAlpha holds 31 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Adam D. Portnoy submitted recently?
10 primary Form 4 filings in the last 90 days, covering 5 companies.
Has Adam D. Portnoy been buying or selling stock?
Recorded transactions: 1 open-market purchase ($50.00M) and 0 open-market sales across all tracked filings.
Adam D. Portnoy is Director of Industrial Logistics Properties Trust (ILPT). 31 SEC Form 4 filings on record going back to 2025, most recently on 21 September 2026. Most recent open-market trade: bought $50.00M of SVC on 2 April 2026. Lifetime open-market purchases: $50.00M.
Recent transactions
20
The latest 20 SEC Form 4 transactions reported by Adam D. Portnoy.
InsiderAlpha's records for Adam D. Portnoy go back to 2025: 31 primary Form 4 filings, an average of 15.5 per year. The typical open-market purchase is $50.00M (1 buy totaling $50.00M). The largest single buy on record is $50.00M of SVC in 2026. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
