ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

TWO SIGMA INVESTMENTS, LP's Holding History (CIK: 0001179392)

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

Q1 2025

Shares 53,441 Value ($000) $849 Avg Close $15.21 Range $13.80 - $16.86

Q4 2024

Shares 15,565 Value ($000) $229 Avg Close $17.11 Range $14.47 - $20.27

Q2 2024

Shares 67,450 Value ($000) $896 Avg Close $13.78 Range $12.26 - $15.95

Q1 2024

Shares 74,093 Value ($000) $1,170 Avg Close $15.91 Range $13.95 - $19.19

Q4 2023

Shares 121,076 Value ($000) $2,281 Avg Close $18.57 Range $14.04 - $21.32

Q3 2023

Shares 45,327 Value ($000) $961 Avg Close $26.69 Range $20.50 - $30.76

Q2 2023

Shares 71,570 Value ($000) $2,000 Avg Close $24.94 Range $21.78 - $29.71

Q1 2023

Shares 74,187 Value ($000) $1,710 Avg Close $21.96 Range $19.68 - $24.18

Q4 2022

Shares 106,787 Value ($000) $2,188 Avg Close $21.88 Range $17.32 - $26.34

Q3 2022

Shares 233,441 Value ($000) $5,075 Avg Close $22.52 Range $18.74 - $26.20

Q2 2022

Shares 103,560 Value ($000) $2,011 Avg Close $19.40 Range $16.92 - $21.97

Q1 2022

Shares 69,532 Value ($000) $1,400 Avg Close $19.47 Range $17.84 - $22.09

Q4 2021

Shares 17,594 Value ($000) $378 Avg Close $20.92 Range $18.50 - $24.99

Q4 2019

Shares 20,187 Value ($000) $198 Avg Close $9.21 Range $8.32 - $10.24

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	53,441	$849	$15.21	$13.80 - $16.86
Q4 2024	15,565	$229	$17.11	$14.47 - $20.27
Q2 2024	67,450	$896	$13.78	$12.26 - $15.95
Q1 2024	74,093	$1,170	$15.91	$13.95 - $19.19
Q4 2023	121,076	$2,281	$18.57	$14.04 - $21.32
Q3 2023	45,327	$961	$26.69	$20.50 - $30.76
Q2 2023	71,570	$2,000	$24.94	$21.78 - $29.71
Q1 2023	74,187	$1,710	$21.96	$19.68 - $24.18
Q4 2022	106,787	$2,188	$21.88	$17.32 - $26.34
Q3 2022	233,441	$5,075	$22.52	$18.74 - $26.20
Q2 2022	103,560	$2,011	$19.40	$16.92 - $21.97
Q1 2022	69,532	$1,400	$19.47	$17.84 - $22.09
Q4 2021	17,594	$378	$20.92	$18.50 - $24.99
Q4 2019	20,187	$198	$9.21	$8.32 - $10.24