Energy Recovery, Inc.
US ˙ NasdaqGS ˙ US29270J1007

SecurityERII / Energy Recovery, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership97,634 shares
Latest Disclosed Value $ 1,247,762
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series ownership in ERII / Energy Recovery, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 97,634 shares of Energy Recovery, Inc. (US:ERII) valued at $1,247,763 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 97,634 shares of Energy Recovery, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $782,048 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)
2025-08-26 2025-06-30 NP Energy Recovery EC US29270J1007 97,634 0 0.00 1,248 -19.60 0.0280
2025-05-28 2025-03-31 NP Energy Recovery EC US29270J1007 97,634 -347 -0.35 1,551 7.71 0.0372
2025-02-25 2024-12-31 NP Energy Recovery EC US29270J1007 97,981 -12,276 -11.13 1,440 -24.88 0.0315
2024-11-26 2024-09-30 NP Energy Recovery EC US29270J1007 110,257 6,378 6.14 1,917 38.91 0.0363
2024-08-26 2024-06-30 NP Energy Recovery EC US29270J1007 103,879 5,262 5.34 1,381 -11.37 0.0281
2024-05-28 2024-03-31 NP Energy Recovery EC US29270J1007 98,617 -2,856 -2.81 1,557 -18.52 0.0325
2024-02-26 2023-12-31 NP Energy Recovery EC US29270J1007 101,473 6,843 7.23 1,912 -4.78 0.0408
2023-11-28 2023-09-30 NP Energy Recovery EC US29270J1007 94,630 -1,160 -1.21 2,007 -25.03 0.0524
2023-08-25 2023-06-30 NP Energy Recovery EC US29270J1007 95,790 7,223 8.16 2,677 31.16 0.0635
2023-05-26 2023-03-31 NP Energy Recovery EC US29270J1007 88,567 2,238 2.59 2,041 15.44 0.0544
2023-02-24 2022-12-31 NP Energy Recovery EC US29270J1007 86,329 -1,783 -2.02 1,769 -7.68 0.0487
2022-11-25 2022-09-30 NP Energy Recovery EC US29270J1007 88,112 1,901 2.21 1,916 14.40 0.0549
2022-08-25 2022-06-30 NP Energy Recovery EC US29270J1007 86,211 22,051 34.37 1,674 29.57 0.0462
2022-05-26 2022-03-31 NP Energy Recovery EC US29270J1007 64,160 2,124 3.42 1,292 -3.08 0.0301
2022-02-25 2021-12-31 NP Energy Recovery EC US29270J1007 62,036 0 0.00 1,333 12.97 0.0289
2021-11-24 2021-09-30 NP Energy Recovery EC US29270J1007 62,036 0 0.00 1,181 -16.49 0.0260
2021-08-26 2021-06-30 NP Energy Recovery EC US29270J1007 62,036 0 0.00 1,413 24.27 0.0303
2021-05-27 2021-03-31 NP Energy Recovery EC US29270J1007 62,036 5,385 9.51 1,138 47.28 0.0258
2021-02-25 2020-12-31 NP Energy Recovery EC US29270J1007 56,651 -11,878 -17.33 773 37.61 0.0198
2020-11-25 2020-09-30 NP Energy Recovery EC US29270J1007 68,529 0 0.00 562 7.88 0.0180
2020-08-27 2020-06-30 NP Energy Recovery EC US29270J1007 68,529 8,486 14.13 520 16.59 0.0170
2020-06-01 2020-03-31 NP Energy Recovery EC US29270J1007 60,043 3,122 5.48 447 -19.93 0.0183
2020-02-27 2019-12-31 NP Energy Recovery EC 29270J100 56,921 1,082 1.94 557 7.74 0.0168
2019-11-27 2019-09-30 NP Energy Recovery EC US29270J1007 55,839 55,839 517 0.0171
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.