ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

Acuitas Investments, LLC's Holding History (CIK: 0001524828)

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

Q4 2021

Shares 42,303 Value ($000) $909 Avg Close $20.92 Range $18.50 - $24.99

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	42,303	$909	$20.92	$18.50 - $24.99