Energy Recovery, Inc.
DE ˙ DB ˙ US29270J1007
7,01 € ↑0,17 (2,52%)
2026-06-05
PREZZO DELLE AZIONI
SecurityDE:5E2 / Energy Recovery, Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership144,265 shares
Latest Disclosed Value $ 1,452,749
Renaissance Technologies Llc reports 40.08% increase in ownership of 5E2 / Energy Recovery, Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 144,265 shares of Energy Recovery, Inc. (DE:5E2) valued at $1,236,640 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 102,985 shares of Energy Recovery, Inc.. This represents a change in shares of 40.08% during the quarter. The current value of the position is $1,011,009 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F ENERGY RECOVERY COM 29270J100 144,265 41,280 40.08 1,453 4.54 0.0023
2026-02-12 2025-12-31 13F ENERGY RECOVERY COM 29270J100 102,985 47,385 85.22 1,389 62.08 0.0022
2025-11-13 2025-09-30 13F ENERGY RECOVERY COM 29270J100 55,600 -85,500 -60.60 857 -52.47 0.0011
2025-08-13 2025-06-30 13F ENERGY RECOVERY COM 29270J100 141,100 -100,400 -41.57 1,803 -53.01 0.0024
2025-05-14 2025-03-31 13F ENERGY RECOVERY COM 29270J100 241,500 51,100 26.84 3,837 37.13 0.0058
2025-02-13 2024-12-31 13F ENERGY RECOVERY COM 29270J100 190,400 190,400 2,799 0.0041
2024-08-09 2024-06-30 13F ENERGY RECOVERY COM 29270J100 0 -162,000 -100.00 0 -100.00
2024-05-13 2024-03-31 13F ENERGY RECOVERY COM 29270J100 162,000 62,700 63.14 3 100.00 0.0040
2024-02-13 2023-12-31 13F ENERGY RECOVERY COM 29270J100 99,300 99,300 2 0.0029
2023-02-13 2022-12-31 13F ENERGY RECOVERY COM 29270J100 0 -49,500 -100.00 0 -100.00
2022-11-14 2022-09-30 13F ENERGY RECOVERY COM 29270J100 49,500 -40,200 -44.82 1,076 -38.23 0.0015
2022-08-12 2022-06-30 13F ENERGY RECOVERY COM 29270J100 89,700 -49,300 -35.47 1,742 -37.76 0.0021
2022-05-13 2022-03-31 13F ENERGY RECOVERY COM 29270J100 139,000 139,000 2,799 0.0033
2022-02-11 2021-12-31 13F ENERGY RECOVERY COM 29270J100 0 -25,100 -100.00 0 -100.00
2021-11-12 2021-09-30 13F ENERGY RECOVERY COM 29270J100 25,100 25,100 478 0.0006
2021-08-13 2021-06-30 13F ENERGY RECOVERY COM 29270J100 0 -15,400 -100.00 0 -100.00
2021-05-13 2021-03-31 13F ENERGY RECOVERY COM 29270J100 15,400 15,400 282 0.0004
2020-11-13 2020-09-30 13F ENERGY RECOVERY COM 29270J100 0 -33,700 -100.00 0 -100.00
2020-08-13 2020-06-30 13F ENERGY RECOVERY COM 29270J100 33,700 -34,400 -50.51 256 -49.51 0.0002
2020-05-14 2020-03-31 13F ENERGY RECOVERY COM 29270J100 68,100 -8,200 -10.75 507 -32.13 0.0005
2020-02-13 2019-12-31 13F ENERGY RECOVERY COM 29270J100 76,300 -22,900 -23.08 747 -18.72 0.0006
2019-11-13 2019-09-30 13F ENERGY RECOVERY COM 29270J100 99,200 99,200 919 0.0008
2019-08-12 2019-06-30 13F ENERGY RECOVERY COM 29270J100 0 -40,800 -100.00 0 -100.00
2019-05-14 2019-03-31 13F ENERGY RECOVERY COM 29270J100 40,800 40,800 356 0.0003
2018-02-13 2017-12-31 13F ENERGY RECOVERY COM 29270J100 0 -278,700 -100.00 0 -100.00
2017-11-13 2017-09-30 13F ENERGY RECOVERY COM 29270J100 278,700 -128,600 -31.57 2,202 -34.79 0.0026
2017-08-11 2017-06-30 13F ENERGY RECOVERY COM 29270J100 407,300 -34,600 -7.83 3,377 -8.16 0.0043
2017-05-12 2017-03-31 13F ENERGY RECOVERY COM 29270J100 441,900 425,500 2,594.51 3,677 2,062.94 0.0051
2017-02-13 2016-12-31 13F ENERGY RECOVERY COM 29270J100 16,400 -7,500 -31.38 170 -55.50 0.0003
2016-11-14 2016-09-30 13F ENERGY RECOVERY COM 29270J100 23,900 -244,200 -91.09 382 -83.97 0.0007
2016-08-12 2016-06-30 13F ENERGY RECOVERY COM 29270J100 268,100 126,300 89.07 2,383 62.55 0.0045
2016-05-13 2016-03-31 13F ENERGY RECOVERY COM 29270J100 141,800 -13,900 -8.93 1,466 33.15 0.0028
2016-02-11 2015-12-31 13F ENERGY RECOVERY COM 29270J100 155,700 155,700 10.35 1,101 88.85 0.0024
2013-11-13 2013-09-30 13F ENERGY RECOVERY COM 29270J100 0 -141,100 -100.00 0 -100.00
2013-08-12 2013-06-30 13F ENERGY RECOVERY COM 29270J100 141,100 141,100 583 0.0015
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.