ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q4 2025
Shares 301 Value ($000) $4 Avg Close $15.16 Range $13.27 - $18.32
Q2 2025
Shares 1,595 Value ($000) $0 Avg Close $13.55 Range $10.86 - $16.05
Q1 2025
Shares 8,701 Value ($000) $0 Avg Close $15.21 Range $13.80 - $16.86
Q2 2024
Shares 1,138 Value ($000) $0 Avg Close $13.78 Range $12.26 - $15.95
Q1 2024
Shares 2,684 Value ($000) $0 Avg Close $15.91 Range $13.95 - $19.19
Q4 2023
Shares 389 Value ($000) $0 Avg Close $18.57 Range $14.04 - $21.32
Q3 2023
Shares 836 Value ($000) $0 Avg Close $26.69 Range $20.50 - $30.76
Q1 2021
Shares 27,723 Value ($000) $0 Avg Close $16.01 Range $13.45 - $20.25
Q4 2020
Shares 30,292 Value ($000) $413 Avg Close $10.67 Range $8.12 - $13.98
Q3 2020
Shares 12,771 Value ($000) $104 Avg Close $8.02 Range $6.69 - $9.18
Q2 2020
Shares 13,658 Value ($000) $103 Avg Close $7.92 Range $6.66 - $9.31
Q1 2020
Shares 26,984 Value ($000) $200 Avg Close $9.48 Range $6.11 - $11.07
Q2 2019
Shares 5,460 Value ($000) $56 Avg Close $9.84 Range $8.69 - $11.11
Q1 2019
Shares 5,482 Value ($000) $47 Avg Close $7.96 Range $6.56 - $9.18
Q4 2018
Shares 784 Value ($000) $5 Avg Close $7.87 Range $6.17 - $9.28
Q3 2018
Shares 1,368 Value ($000) $12 Avg Close $8.85 Range $7.68 - $10.25
Q1 2018
Shares 2,241 Value ($000) $18 Avg Close $8.08 Range $6.17 - $9.21
Q4 2017
Shares 6,419 Value ($000) $56 Avg Close $9.12 Range $7.48 - $11.30
Q3 2017
Shares 58,410 Value ($000) $461 Avg Close $7.14 Range $6.13 - $8.43
Q2 2017
Shares 8,432 Value ($000) $69 Avg Close $8.01 Range $7.11 - $8.77
Q4 2016
Shares 8,643 Value ($000) $89 Avg Close $12.01 Range $8.53 - $16.30
Q3 2016
Shares 11,999 Value ($000) $191 Avg Close $12.16 Range $8.35 - $16.67
Q1 2016
Shares 390 Value ($000) $4 Avg Close $7.29 Range $5.28 - $10.82