ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

Rafferty Asset Management, LLC's Holding History (CIK: 0001389426)

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

Q1 2022

Shares 96,044 Value ($000) $1,934 Avg Close $19.47 Range $17.84 - $22.09

Q4 2021

Shares 108,698 Value ($000) $2,336 Avg Close $20.92 Range $18.50 - $24.99

Q3 2021

Shares 169,875 Value ($000) $3,233 Avg Close $20.30 Range $17.94 - $23.69

Q2 2021

Shares 187,808 Value ($000) $4,278 Avg Close $19.71 Range $16.40 - $22.81

Q1 2021

Shares 166,776 Value ($000) $3,059 Avg Close $16.01 Range $13.45 - $20.25

Q4 2020

Shares 24,077 Value ($000) $328 Avg Close $10.67 Range $8.12 - $13.98

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2022	96,044	$1,934	$19.47	$17.84 - $22.09
Q4 2021	108,698	$2,336	$20.92	$18.50 - $24.99
Q3 2021	169,875	$3,233	$20.30	$17.94 - $23.69
Q2 2021	187,808	$4,278	$19.71	$16.40 - $22.81
Q1 2021	166,776	$3,059	$16.01	$13.45 - $20.25
Q4 2020	24,077	$328	$10.67	$8.12 - $13.98