PRM

Perimeter Solutions, S.A.$31.03+0.00 (—)

Prev Close$31.40·MCap$5.45B·P/E—·Vol—·Yield—

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Buys (12M)

$0.00

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Sells (12M)

$52.13M

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Net Activity

Net Seller

$52.13M

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at Perimeter Solutions, S.A. (PRM) has been exclusively selling, with 0 insider purchases totaling $0.00 and 12 insider sales totaling $52.13M. The most recent insider transaction was by Khouri Haitham (director, officer: Chief Executive Officer), who sold $7.28M worth of shares on May 22, 2026. Perimeter Solutions, S.A. operates in the Basic Materials sector, within the Chemicals - Specialty industry, with a market cap of $5.45B.

PRM Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
May 22, 2026	Khouri Haitham	director, officer: Chief Executive Officer	Sell	229,535	$31.73	$7.28M	2,083,850
May 15, 2026	Emery Jeffrey	officer: President - Global Fire Safety	Sell	53,537	$33.45	$1.79M	0Exit
May 15, 2026	Sable Kyle	officer: Chief Financial Officer	Sell	49,540	$33.09	$1.64M	3,277-94%
May 12, 2026	Emery Jeffrey	officer: President - Global Fire Safety	Sell	146,463	$32.63	$4.78M	2,108-99%
May 12, 2026	Sable Kyle	officer: Chief Financial Officer	Sell	200,460	$31.69	$6.35M	0Exit
Mar 11, 2026	Thorndike William N Jr	director	Sell	325,000	$23.39	$7.60M	8,770,613
Mar 6, 2026	Thorndike William N Jr	director	Sell	325,000	$24.00	$7.80M	9,060,656
Dec 12, 2025	Sable Kyle	Chief Financial Officer	Sell	100,000	$28.47	$2.85M	0
Dec 12, 2025	Yokozuka Noriko	General Counsel	Sell	137,500	$28.44	$3.91M	0
Sep 11, 2025	Raj Vivek	Director	Sell	25,000	$22.45	$561.3K	0
Sep 5, 2025	Sable Kyle	Chief Financial Officer	Sell	40,000	$22.05	$882.0K	0
Sep 4, 2025	Emery Jeffrey	President - Global Fire Safety	Sell	300,000	$22.28	$6.68M	0
May 21, 2025	Raj Vivek	Director	Sell	32,000	$11.70	$374.4K	0
May 16, 2025	Raj Vivek	Director	Sell	268,810	$11.78	$3.17M	0
May 13, 2025	Raj Vivek	Director	Sell	102,284	$11.93	$1.22M	0
Mar 14, 2025	Raj Vivek	Director	Sell	250,000	$9.17	$2.29M	0
Nov 25, 2024	Cool Tracy Britt	Director	Sell	50,000	$12.81	$640.5K	173,449

PRM Insider Buying Activity

The following table shows recent insider purchases of Perimeter Solutions, S.A. (PRM) stock reported via SEC Form 4 filings.

No insider buying activity found for PRM in the last 12 months.

PRM Insider Selling Activity

The following table shows recent insider sales of Perimeter Solutions, S.A. (PRM) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
May 22, 2026	Khouri Haitham	director, officer: Chief Executive Officer	Sell	229,535	$31.73	$7.28M	2,083,850
May 15, 2026	Emery Jeffrey	officer: President - Global Fire Safety	Sell	53,537	$33.45	$1.79M	0Exit
May 15, 2026	Sable Kyle	officer: Chief Financial Officer	Sell	49,540	$33.09	$1.64M	3,277-94%
May 12, 2026	Emery Jeffrey	officer: President - Global Fire Safety	Sell	146,463	$32.63	$4.78M	2,108-99%
May 12, 2026	Sable Kyle	officer: Chief Financial Officer	Sell	200,460	$31.69	$6.35M	0Exit
Mar 11, 2026	Thorndike William N Jr	director	Sell	325,000	$23.39	$7.60M	8,770,613
Mar 6, 2026	Thorndike William N Jr	director	Sell	325,000	$24.00	$7.80M	9,060,656
Dec 12, 2025	Sable Kyle	Chief Financial Officer	Sell	100,000	$28.47	$2.85M	0
Dec 12, 2025	Yokozuka Noriko	General Counsel	Sell	137,500	$28.44	$3.91M	0
Sep 11, 2025	Raj Vivek	Director	Sell	25,000	$22.45	$561.3K	0
Sep 5, 2025	Sable Kyle	Chief Financial Officer	Sell	40,000	$22.05	$882.0K	0
Sep 4, 2025	Emery Jeffrey	President - Global Fire Safety	Sell	300,000	$22.28	$6.68M	0
May 21, 2025	Raj Vivek	Director	Sell	32,000	$11.70	$374.4K	0
May 16, 2025	Raj Vivek	Director	Sell	268,810	$11.78	$3.17M	0
May 13, 2025	Raj Vivek	Director	Sell	102,284	$11.93	$1.22M	0
Mar 14, 2025	Raj Vivek	Director	Sell	250,000	$9.17	$2.29M	0
Nov 25, 2024	Cool Tracy Britt	Director	Sell	50,000	$12.81	$640.5K	173,449