PERIMETER SOLUTIONS INC

Ticker: PRM CUSIP: 71385M107 Class: Common Stock

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 2,132,437 Value ($000) $58,706 Avg Close $25.26 Range $19.70 - $29.78

Q3 2025

Shares 2,132,167 Value ($000) $47,739 Avg Close $18.95 Range $13.79 - $23.79

Q2 2025

Shares 1,417,351 Value ($000) $19,730 Avg Close $11.54 Range $8.76 - $14.30

Q1 2025

Shares 898,476 Value ($000) $9,048 Avg Close $11.22 Range $8.90 - $14.05

Q4 2024

Shares 1,366,303 Value ($000) $17,461 Avg Close $13.06 Range $11.75 - $14.44

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,132,437	$58,706	$25.26	$19.70 - $29.78
Q3 2025	2,132,167	$47,739	$18.95	$13.79 - $23.79
Q2 2025	1,417,351	$19,730	$11.54	$8.76 - $14.30
Q1 2025	898,476	$9,048	$11.22	$8.90 - $14.05
Q4 2024	1,366,303	$17,461	$13.06	$11.75 - $14.44