Robert S. Henderson
Director · Perimeter Solutions, Inc.
Individual
- 2024
- Mar 2, 2026
- 2
Filings (90d)
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Robert S. Henderson 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.
- WINDACRE PARTNERSHIP LLC - $391.22M in PRM purchases and sales in the last 12 months
- Kyle Sable - $10.84M in PRM purchases and sales in the last 12 months
- William N. Thorndike Jr. - $7.60M in PRM purchases and sales in the last 12 months
- Haitham Khouri - $7.28M in PRM purchases and sales in the last 12 months
- Jeffrey Emery - $6.57M in PRM purchases and sales in the last 12 months
- Noriko Yokozuka - $3.91M in PRM purchases and sales in the last 12 months
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Frequently asked questions
Who is Robert S. Henderson?
Robert S. Henderson is a corporate insider, tracked as Director of Perimeter Solutions, Inc. (PRM). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Robert S. Henderson last file a Form 4?
The most recent primary Form 4 on record is dated 2 March 2026, one of 2 filings going back to 2024.
