ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

Select Equity Group, L.P.'s Holding History (CIK: 0001592643)

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

Q4 2025

Shares 773,577 Value ($000) $10,436 Avg Close $15.16 Range $13.27 - $18.32

Q3 2025

Shares 751,042 Value ($000) $11,581 Avg Close $14.10 Range $12.54 - $15.47

Q2 2025

Shares 769,706 Value ($000) $9,837 Avg Close $13.55 Range $10.86 - $16.05

Q1 2025

Shares 667,157 Value ($000) $10,601 Avg Close $15.21 Range $13.80 - $16.86

Q4 2024

Shares 132,495 Value ($000) $1,948 Avg Close $17.11 Range $14.47 - $20.27

Q3 2024

Shares 121,144 Value ($000) $2,107 Avg Close $15.78 Range $12.46 - $18.36

Q2 2024

Shares 81,999 Value ($000) $1,090 Avg Close $13.78 Range $12.26 - $15.95

Q1 2024

Shares 67,390 Value ($000) $1,064 Avg Close $15.91 Range $13.95 - $19.19

Q4 2023

Shares 75,389 Value ($000) $1,420 Avg Close $18.57 Range $14.04 - $21.32

Q3 2023

Shares 121,133 Value ($000) $2,569 Avg Close $26.69 Range $20.50 - $30.76

Q2 2023

Shares 118,970 Value ($000) $3,325 Avg Close $24.94 Range $21.78 - $29.71

Q1 2023

Shares 105,877 Value ($000) $2,440 Avg Close $21.96 Range $19.68 - $24.18

Q4 2022

Shares 76,352 Value ($000) $1,564 Avg Close $21.88 Range $17.32 - $26.34

Q3 2022

Shares 140,562 Value ($000) $3,056 Avg Close $22.52 Range $18.74 - $26.20

Q2 2022

Shares 151,062 Value ($000) $2,934 Avg Close $19.40 Range $16.92 - $21.97

Q1 2022

Shares 128,799 Value ($000) $2,594 Avg Close $19.47 Range $17.84 - $22.09

Q4 2021

Shares 107,144 Value ($000) $2,303 Avg Close $20.92 Range $18.50 - $24.99

Q3 2021

Shares 102,696 Value ($000) $1,954,305 Avg Close $20.30 Range $17.94 - $23.69

Q2 2021

Shares 91,658 Value ($000) $2,087,969 Avg Close $19.71 Range $16.40 - $22.81

Q1 2021

Shares 57,263 Value ($000) $1,050,203 Avg Close $16.01 Range $13.45 - $20.25

Q4 2020

Shares 29,116 Value ($000) $397,142 Avg Close $10.67 Range $8.12 - $13.98

Q3 2020

Shares 15,107 Value ($000) $123,877 Avg Close $8.02 Range $6.69 - $9.18

Q2 2020

Shares 11,676 Value ($000) $88,679 Avg Close $7.92 Range $6.66 - $9.31

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	773,577	$10,436	$15.16	$13.27 - $18.32
Q3 2025	751,042	$11,581	$14.10	$12.54 - $15.47
Q2 2025	769,706	$9,837	$13.55	$10.86 - $16.05
Q1 2025	667,157	$10,601	$15.21	$13.80 - $16.86
Q4 2024	132,495	$1,948	$17.11	$14.47 - $20.27
Q3 2024	121,144	$2,107	$15.78	$12.46 - $18.36
Q2 2024	81,999	$1,090	$13.78	$12.26 - $15.95
Q1 2024	67,390	$1,064	$15.91	$13.95 - $19.19
Q4 2023	75,389	$1,420	$18.57	$14.04 - $21.32
Q3 2023	121,133	$2,569	$26.69	$20.50 - $30.76
Q2 2023	118,970	$3,325	$24.94	$21.78 - $29.71
Q1 2023	105,877	$2,440	$21.96	$19.68 - $24.18
Q4 2022	76,352	$1,564	$21.88	$17.32 - $26.34
Q3 2022	140,562	$3,056	$22.52	$18.74 - $26.20
Q2 2022	151,062	$2,934	$19.40	$16.92 - $21.97
Q1 2022	128,799	$2,594	$19.47	$17.84 - $22.09
Q4 2021	107,144	$2,303	$20.92	$18.50 - $24.99
Q3 2021	102,696	$1,954,305	$20.30	$17.94 - $23.69
Q2 2021	91,658	$2,087,969	$19.71	$16.40 - $22.81
Q1 2021	57,263	$1,050,203	$16.01	$13.45 - $20.25
Q4 2020	29,116	$397,142	$10.67	$8.12 - $13.98
Q3 2020	15,107	$123,877	$8.02	$6.69 - $9.18
Q2 2020	11,676	$88,679	$7.92	$6.66 - $9.31