ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

Atom Investors LP's Holding History (CIK: 0001738902)

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

Q3 2021

Shares 12,142 Value ($000) $231 Avg Close $20.30 Range $17.94 - $23.69

Q4 2018

Shares 10,373 Value ($000) $70 Avg Close $7.87 Range $6.17 - $9.28

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	12,142	$231	$20.30	$17.94 - $23.69
Q4 2018	10,373	$70	$7.87	$6.17 - $9.28