ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

Y-Intercept (Hong Kong) Ltd's Holding History (CIK: 0001772875)

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

Q4 2025

Shares 113,863 Value ($000) $1,536 Avg Close $15.16 Range $13.27 - $18.32

Q3 2025

Shares 35,832 Value ($000) $553 Avg Close $14.10 Range $12.54 - $15.47

Q2 2025

Shares 79,161 Value ($000) $1,012 Avg Close $13.55 Range $10.86 - $16.05

Q1 2025

Shares 27,885 Value ($000) $443 Avg Close $15.21 Range $13.80 - $16.86

Q2 2024

Shares 24,473 Value ($000) $325 Avg Close $13.78 Range $12.26 - $15.95

Q3 2023

Shares 16,467 Value ($000) $349 Avg Close $26.69 Range $20.50 - $30.76

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	113,863	$1,536	$15.16	$13.27 - $18.32
Q3 2025	35,832	$553	$14.10	$12.54 - $15.47
Q2 2025	79,161	$1,012	$13.55	$10.86 - $16.05
Q1 2025	27,885	$443	$15.21	$13.80 - $16.86
Q2 2024	24,473	$325	$13.78	$12.26 - $15.95
Q3 2023	16,467	$349	$26.69	$20.50 - $30.76