William N Thorndike Jr Perimeter Solutions, Sa (PRM) insider trading activity

William N Thorndike Jr is Director of Perimeter Solutions, SA. Currently has a direct ownership of 3.6 Million shares of PRM, which is worth approximately $91.3 Million. The most recent transaction as insider was on Dec 09, 2025, when has been sold 673,685 shares (Common Stock) at a price of $0.0 per share, resulting in proceeds of $0. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 3.6M

15.75% 3M change

2.07% 12M change

Total Value Held $91.3 Million

William N Thorndike Jr Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 09 2025	SELL Bona fide gift	-	673,685 Reduced 15.75%	3,603,164 Common Stock
Jun 20 2025	BUY Other acquisition or disposition	-	746,767 Added 14.87%	4,276,849 Common Stock
Nov 06 2024	BUY Exercise of conversion of derivative security	$1,500,000 $12.0 p/Share	125,000 Added 3.42%	3,530,082 Ordinary Shares
Mar 14 2024	BUY Other acquisition or disposition	-	667,536 Added 16.39%	3,405,082 Ordinary Shares
Feb 17 2023	BUY Other acquisition or disposition	-	696,446 Added 20.28%	2,737,546 Ordinary Shares
Apr 29 2022	BUY Other acquisition or disposition	-	1,541,100 Added 43.02%	2,041,100 Ordinary Shares
Nov 08 2021	BUY Other acquisition or disposition	-	500,000 Added 50.0%	500,000 Ordinary Shares

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