ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

Conestoga Capital Advisors, LLC's Holding History (CIK: 0001163744)

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

Q4 2025

Shares 133,725 Value ($000) $1,804 Avg Close $15.16 Range $13.27 - $18.32

Q3 2025

Shares 130,370 Value ($000) $2,010 Avg Close $14.10 Range $12.54 - $15.47

Q2 2025

Shares 112,420 Value ($000) $1,437 Avg Close $13.55 Range $10.86 - $16.05

Q1 2025

Shares 89,525 Value ($000) $1,423 Avg Close $15.21 Range $13.80 - $16.86

Q4 2024

Shares 89,525 Value ($000) $1,316 Avg Close $17.11 Range $14.47 - $20.27

Q3 2024

Shares 89,695 Value ($000) $1,560 Avg Close $15.78 Range $12.46 - $18.36

Q2 2024

Shares 89,695 Value ($000) $1,192 Avg Close $13.78 Range $12.26 - $15.95

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	133,725	$1,804	$15.16	$13.27 - $18.32
Q3 2025	130,370	$2,010	$14.10	$12.54 - $15.47
Q2 2025	112,420	$1,437	$13.55	$10.86 - $16.05
Q1 2025	89,525	$1,423	$15.21	$13.80 - $16.86
Q4 2024	89,525	$1,316	$17.11	$14.47 - $20.27
Q3 2024	89,695	$1,560	$15.78	$12.46 - $18.36
Q2 2024	89,695	$1,192	$13.78	$12.26 - $15.95