Insiders who have reported open-market trades at the same companies as Richard Grondin. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Kerry C. Duggan - $49K in PESI purchases and sales on record
Larry Shelton - $18K in PESI purchases and sales on record
Mark Duff - $7K in PESI purchases and sales on record
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Richard Grondin is a corporate insider, tracked as EVP of Hanford & Int. Waste Op of PERMA FIX ENVIRONMENTAL SERVICES INC (PESI). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Richard Grondin last file a Form 4?
The most recent primary Form 4 on record is dated 21 January 2026, one of 2 filings going back to 2025.
Richard Grondin is EVP of Hanford & Int. Waste Op of PERMA FIX ENVIRONMENTAL SERVICES INC (PESI). 2 SEC Form 4 filings on record going back to 2025, most recently on 21 January 2026.
Recent transactions
8
The latest 8 SEC Form 4 transactions reported by Richard Grondin.
InsiderAlpha's records for Richard Grondin go back to 2025: 2 primary Form 4 filings, an average of 1.0 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.
