ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

Campbell & CO Investment Adviser LLC's Holding History (CIK: 0001353570)

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

Q4 2025

Shares 81,604 Value ($000) $1,101 Avg Close $15.16 Range $13.27 - $18.32

Q3 2025

Shares 48,753 Value ($000) $752 Avg Close $14.10 Range $12.54 - $15.47

Q2 2025

Shares 42,155 Value ($000) $539 Avg Close $13.55 Range $10.86 - $16.05

Q1 2025

Shares 22,366 Value ($000) $355 Avg Close $15.21 Range $13.80 - $16.86

Q3 2023

Shares 79,963 Value ($000) $1,696 Avg Close $26.69 Range $20.50 - $30.76

Q1 2023

Shares 22,768 Value ($000) $525 Avg Close $21.96 Range $19.68 - $24.18

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	81,604	$1,101	$15.16	$13.27 - $18.32
Q3 2025	48,753	$752	$14.10	$12.54 - $15.47
Q2 2025	42,155	$539	$13.55	$10.86 - $16.05
Q1 2025	22,366	$355	$15.21	$13.80 - $16.86
Q3 2023	79,963	$1,696	$26.69	$20.50 - $30.76
Q1 2023	22,768	$525	$21.96	$19.68 - $24.18