PERIMETER SOLUTIONS INC

Ticker: PRM CUSIP: 71385M107 Class: Common Stock

East Coast Asset Management, LLC.'s Holding History (CIK: 0001579254)

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

Q4 2025

Shares 1,366,380 Value ($000) $37,616 Avg Close $25.26 Range $19.70 - $29.78

Q3 2025

Shares 1,573,973 Value ($000) $35,241 Avg Close $18.95 Range $13.79 - $23.79

Q2 2025

Shares 2,071,820 Value ($000) $28,840 Avg Close $11.54 Range $8.76 - $14.30

Q1 2025

Shares 2,073,910 Value ($000) $20,884 Avg Close $11.22 Range $8.90 - $14.05

Q4 2024

Shares 2,007,462 Value ($000) $25,655 Avg Close $13.06 Range $11.75 - $14.44

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,366,380	$37,616	$25.26	$19.70 - $29.78
Q3 2025	1,573,973	$35,241	$18.95	$13.79 - $23.79
Q2 2025	2,071,820	$28,840	$11.54	$8.76 - $14.30
Q1 2025	2,073,910	$20,884	$11.22	$8.90 - $14.05
Q4 2024	2,007,462	$25,655	$13.06	$11.75 - $14.44