ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

Granahan Investment Management, LLC's Holding History (CIK: 0001026710)

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

Q3 2023

Shares 34,521 Value ($000) $732 Avg Close $26.69 Range $20.50 - $30.76

Q2 2023

Shares 35,344 Value ($000) $988 Avg Close $24.94 Range $21.78 - $29.71

Q1 2023

Shares 36,861 Value ($000) $850 Avg Close $21.96 Range $19.68 - $24.18

Q4 2022

Shares 22,689 Value ($000) $465 Avg Close $21.88 Range $17.32 - $26.34

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	34,521	$732	$26.69	$20.50 - $30.76
Q2 2023	35,344	$988	$24.94	$21.78 - $29.71
Q1 2023	36,861	$850	$21.96	$19.68 - $24.18
Q4 2022	22,689	$465	$21.88	$17.32 - $26.34