ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

D. E. Shaw & Co., Inc.'s Holding History (CIK: 0001009207)

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

Q4 2025
Shares 63,095 Value ($000) $851 Avg Close $15.16 Range $13.27 - $18.32
Q3 2025
Shares 346,801 Value ($000) $5,348 Avg Close $14.10 Range $12.54 - $15.47
Q2 2025
Shares 373,692 Value ($000) $4,776 Avg Close $13.55 Range $10.86 - $16.05
Q1 2025
Shares 262,639 Value ($000) $4,173 Avg Close $15.21 Range $13.80 - $16.86
Q4 2024
Shares 379,418 Value ($000) $5,577 Avg Close $17.11 Range $14.47 - $20.27
Q3 2024
Shares 461,473 Value ($000) $8,025 Avg Close $15.78 Range $12.46 - $18.36
Q2 2024
Shares 668,475 Value ($000) $8,884 Avg Close $13.78 Range $12.26 - $15.95
Q1 2024
Shares 480,642 Value ($000) $7,589 Avg Close $15.91 Range $13.95 - $19.19
Q4 2023
Shares 139,222 Value ($000) $2,623 Avg Close $18.57 Range $14.04 - $21.32
Q3 2023
Shares 153,709 Value ($000) $3,260 Avg Close $26.69 Range $20.50 - $30.76
Q2 2023
Shares 161,201 Value ($000) $4,506 Avg Close $24.94 Range $21.78 - $29.71
Q1 2023
Shares 113,864 Value ($000) $2,625 Avg Close $21.96 Range $19.68 - $24.18
Q4 2022
Shares 80,086 Value ($000) $1,641 Avg Close $21.88 Range $17.32 - $26.34
Q3 2022
Shares 35,900 Value ($000) $780 Avg Close $22.52 Range $18.74 - $26.20
Q2 2022
Shares 15,800 Value ($000) $307 Avg Close $19.40 Range $16.92 - $21.97
Q1 2021
Shares 32,592 Value ($000) $598 Avg Close $16.01 Range $13.45 - $20.25
Q4 2017
Shares 47,161 Value ($000) $413 Avg Close $9.12 Range $7.48 - $11.30
Q2 2016
Shares 371,930 Value ($000) $3,306 Avg Close $10.67 Range $7.77 - $13.35
Q1 2016
Shares 435,486 Value ($000) $4,503 Avg Close $7.29 Range $5.28 - $10.82
Q4 2015
Shares 25,551 Value ($000) $181 Avg Close $6.31 Range $2.09 - $9.50
Q3 2015
Shares 14,569 Value ($000) $31 Avg Close $2.59 Range $2.07 - $3.07
Q1 2015
Shares 29,625 Value ($000) $77 Avg Close $3.44 Range $2.49 - $5.37
Q1 2014
Shares 15,153 Value ($000) $81 Avg Close $4.92 Range $3.82 - $6.98