ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

Crestline Management, LP's Holding History (CIK: 0001536054)

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

Q3 2018

Shares 138,698 Value ($000) $1,241 Avg Close $8.85 Range $7.68 - $10.25

Q2 2018

Shares 171,311 Value ($000) $1,384 Avg Close $8.43 Range $7.56 - $9.36

Q1 2018

Shares 211,097 Value ($000) $1,735 Avg Close $8.08 Range $6.17 - $9.21

Q4 2017

Shares 116,121 Value ($000) $1,016 Avg Close $9.12 Range $7.48 - $11.30

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	138,698	$1,241	$8.85	$7.68 - $10.25
Q2 2018	171,311	$1,384	$8.43	$7.56 - $9.36
Q1 2018	211,097	$1,735	$8.08	$6.17 - $9.21
Q4 2017	116,121	$1,016	$9.12	$7.48 - $11.30