MONTROSE ENVIRONMENTAL GROUP

Ticker: MEG CUSIP: 615111101 Class: Common Stock

Atria Investments, Inc's Holding History (CIK: 0001535865)

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

Q4 2025

Shares 9,653 Value ($000) $240 Avg Close $26.42 Range $23.36 - $30.90

Q3 2025

Shares 9,456 Value ($000) $260 Avg Close $26.13 Range $20.34 - $32.00

Q2 2025

Shares 12,166 Value ($000) $266 Avg Close $17.93 Range $10.51 - $24.00

Q2 2024

Shares 4,693 Value ($000) $209 Avg Close $44.99 Range $35.60 - $49.97

Q4 2021

Shares 14,925 Value ($000) $1,052 Avg Close $69.28 Range $59.20 - $80.42

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	9,653	$240	$26.42	$23.36 - $30.90
Q3 2025	9,456	$260	$26.13	$20.34 - $32.00
Q2 2025	12,166	$266	$17.93	$10.51 - $24.00
Q2 2024	4,693	$209	$44.99	$35.60 - $49.97
Q4 2021	14,925	$1,052	$69.28	$59.20 - $80.42