Insiders who have reported open-market trades at the same companies as SRB CORP. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
SRB CORP is a corporate entity, tracked as 10% Owner of SAFETY INSURANCE GROUP INC (SAFT). InsiderAlpha holds 10 primary Form 4 filings for it, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did SRB CORP last file a Form 4?
The most recent primary Form 4 on record is dated 29 July 2026, one of 10 filings going back to 2026.
Has SRB CORP been buying or selling stock?
Recorded transactions: 0 open-market purchases and 15 open-market sales ($138.65M) across all tracked filings.
SRB CORP is 10% Owner of SAFETY INSURANCE GROUP INC (SAFT). 10 SEC Form 4 filings on record, most recently on 29 July 2026. Most recent open-market trade: sold $79.78M of SAFT on 29 July 2026. Lifetime open-market sales: $138.65M.
Recent transactions
15
The latest 15 SEC Form 4 transactions reported by SRB CORP.
InsiderAlpha's records for SRB CORP go back to 2026: 10 primary Form 4 filings, an average of 10.0 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.
