ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

Pathstone Holdings, LLC's Holding History (CIK: 0002011612)

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

Q4 2025

Shares 41,191 Value ($000) $556 Avg Close $15.16 Range $13.27 - $18.32

Q3 2025

Shares 10,853 Value ($000) $167 Avg Close $14.10 Range $12.54 - $15.47

Q2 2025

Shares 11,205 Value ($000) $144 Avg Close $13.55 Range $10.86 - $16.05

Q1 2025

Shares 11,092 Value ($000) $176 Avg Close $15.21 Range $13.80 - $16.86

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	41,191	$556	$15.16	$13.27 - $18.32
Q3 2025	10,853	$167	$14.10	$12.54 - $15.47
Q2 2025	11,205	$144	$13.55	$10.86 - $16.05
Q1 2025	11,092	$176	$15.21	$13.80 - $16.86