ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

QUADRANT CAPITAL GROUP LLC's Holding History (CIK: 0001650717)

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

Q1 2025

Shares 167 Value ($000) $3 Avg Close $15.21 Range $13.80 - $16.86

Q4 2024

Shares 203 Value ($000) $3 Avg Close $17.11 Range $14.47 - $20.27

Q3 2024

Shares 275 Value ($000) $5 Avg Close $15.78 Range $12.46 - $18.36

Q2 2024

Shares 814 Value ($000) $11 Avg Close $13.78 Range $12.26 - $15.95

Q1 2024

Shares 641 Value ($000) $10 Avg Close $15.91 Range $13.95 - $19.19

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	167	$3	$15.21	$13.80 - $16.86
Q4 2024	203	$3	$17.11	$14.47 - $20.27
Q3 2024	275	$5	$15.78	$12.46 - $18.36
Q2 2024	814	$11	$13.78	$12.26 - $15.95
Q1 2024	641	$10	$15.91	$13.95 - $19.19