ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

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

Q4 2023
Shares 468,024 Value ($000) $8,818 Avg Close $18.57 Range $14.04 - $21.32
Q3 2023
Shares 1,118,320 Value ($000) $23,720 Avg Close $26.69 Range $20.50 - $30.76
Q2 2023
Shares 2,223,891 Value ($000) $62,158 Avg Close $24.94 Range $21.78 - $29.71
Q1 2023
Shares 2,576,781 Value ($000) $59,395 Avg Close $21.96 Range $19.68 - $24.18
Q4 2022
Shares 2,538,941 Value ($000) $52,023 Avg Close $21.88 Range $17.32 - $26.34
Q3 2022
Shares 2,542,209 Value ($000) $55,268 Avg Close $22.52 Range $18.74 - $26.20
Q2 2022
Shares 2,421,199 Value ($000) $47,020 Avg Close $19.40 Range $16.92 - $21.97
Q1 2022
Shares 2,399,163 Value ($000) $48,319 Avg Close $19.47 Range $17.84 - $22.09
Q4 2021
Shares 2,283,424 Value ($000) $49,071 Avg Close $20.92 Range $18.50 - $24.99
Q3 2021
Shares 1,306,238 Value ($000) $24,858 Avg Close $20.30 Range $17.94 - $23.69
Q2 2021
Shares 1,283,809 Value ($000) $29,245 Avg Close $19.71 Range $16.40 - $22.81
Q1 2021
Shares 1,073,662 Value ($000) $19,691 Avg Close $16.01 Range $13.45 - $20.25
Q4 2020
Shares 1,004,266 Value ($000) $13,698 Avg Close $10.67 Range $8.12 - $13.98
Q3 2020
Shares 206,461 Value ($000) $1,693 Avg Close $8.02 Range $6.69 - $9.18