MONTROSE ENVIRONMENTAL GROUP

Ticker: MEG CUSIP: 615111101 Class: Common Stock

HARBOR CAPITAL ADVISORS, INC.'s Holding History (CIK: 0001039128)

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

Q4 2025

Shares 33,311 Value ($000) $1 Avg Close $26.42 Range $23.36 - $30.90

Q3 2025

Shares 16,616 Value ($000) $0 Avg Close $26.13 Range $20.34 - $32.00

Q4 2024

Shares 46,727 Value ($000) $1 Avg Close $21.03 Range $15.21 - $28.27

Q3 2024

Shares 94,753 Value ($000) $2 Avg Close $32.33 Range $24.85 - $45.13

Q2 2024

Shares 24,578 Value ($000) $1 Avg Close $44.99 Range $35.60 - $49.97

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	33,311	$1	$26.42	$23.36 - $30.90
Q3 2025	16,616	$0	$26.13	$20.34 - $32.00
Q4 2024	46,727	$1	$21.03	$15.21 - $28.27
Q3 2024	94,753	$2	$32.33	$24.85 - $45.13
Q2 2024	24,578	$1	$44.99	$35.60 - $49.97