Stocks › ERII
Energy Recovery, Inc.
ERII·Nasdaq·
United States·USD
United States·USD$6.73
-0.35 (-4.94%)
Close · Oct 7, 2026 · Close Prices from Tiingo.com
ERII
Energy Recovery, Inc. · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
ERIIS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of ERII by members of U.S. Congress · 7 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Suzan K. DelBeneHouse · D · WA |
ERIIEnergy Recovery, Inc. · Stock |
Sale $1,001 - $15,000 |
Apr 16, 2015 | Mar 9, 2015 | Filing ↗ |
| Suzan K. DelBeneHouse · D · WA |
ERIIEnergy Recovery, Inc. · Stock |
Sale $1,001 - $15,000 |
Apr 16, 2015 | Mar 6, 2015 | Filing ↗ |
| Suzan K. DelBeneHouse · D · WA |
ERIIEnergy Recovery, Inc. · Stock |
Purchase $1,001 - $15,000 |
Jan 19, 2015 | Dec 4, 2014 | Filing ↗ |
| Suzan K. DelBeneHouse · D · WA |
ERIIEnergy Recovery, Inc. · Stock |
Purchase $1,001 - $15,000 |
Jan 19, 2015 | Dec 5, 2014 | Filing ↗ |
| Suzan K. DelBeneHouse · D · WA |
ERIIEnergy Recovery, Inc. · Stock |
Sale $1,001 - $15,000 |
Jul 9, 2014 | Jun 24, 2014 | Filing ↗ |
| Suzan K. DelBeneHouse · D · WA |
ERIIEnergy Recovery, Inc. · Stock |
Sale $1,001 - $15,000 |
Jul 9, 2014 | Jun 30, 2014 | Filing ↗ |
| Suzan K. DelBeneHouse · D · WA |
ERIIEnergy Recovery, Inc. · Stock |
Purchase $15,001 - $50,000 |
Jun 12, 2014 | May 12, 2014 | Filing ↗ |
Whale Activity
Position changes in ERII reported for 2026-06-30 by 9 tracked institutional filers
- Increased5
- New1
- Held0
- Decreased1
- Closed2
- No prior filing0
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 6.3M | $57.2M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.2M | $19.7M | decreased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.3M | $11.4M | increased |
| CITADEL ADVISORS LLC | 476.2K | $4.3M | increased |
| TWO SIGMA INVESTMENTS, LP | 232.8K | $2.1M | increased |
| D. E. Shaw & Co., Inc. | 218.7K | $2.0M | increased |
| Point72 Asset Management, L.P. | 82.8K | $747K | new |
| Millennium Management LLC | 0 | $0 | closed |
| Renaissance Technologies | 0 | $0 | closed |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by ERII insiders, by quarter · Form 4
Recent Insider Transactions
1,009 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Clemente RodneySVP, Water | Sale | −5,387 | $8.56 | $46K | Jul 28, 2026 | Form 4 ↗ |
| Yeung WilliamChief Legal Officer | Sale | −2,048 | $8.56 | $18K | Jul 28, 2026 | Form 4 ↗ |
| Sabol Colin RDirector | Purchase | +11.2K | $8.88 | $99K | Jun 15, 2026 | Form 4 ↗ |
| BUEHLER ALEXANDER JInterim President and CEO · Director | Sale | −14.9K | $8.71 | $130K | Jun 15, 2026 | Form 4 ↗ |
| BUEHLER ALEXANDER JInterim President and CEO · Director | Option exercise | +15.3K | $8.60 | $132K | Jun 15, 2026 | Form 4 ↗ |
| TONDREAU PAMELA L.Director | Grant / award | +22.3K | $8.29 | $185K | Jun 4, 2026 | Form 4 ↗ |
| Hanstveit ArveDirector | Grant / award | +18.1K | $8.29 | $150K | Jun 4, 2026 | Form 4 ↗ |
| Sabol Colin RDirector | Grant / award | +18.1K | $8.29 | $150K | Jun 4, 2026 | Form 4 ↗ |
| Chow Joan KaiDirector | Grant / award | +18.1K | $8.29 | $150K | Jun 4, 2026 | Form 4 ↗ |
| TONDREAU PAMELA L.Director | Purchase | +20.0K | $8.34 | $167K | May 13, 2026 | Form 4 ↗ |
| Ryan AidanInterim CFO | Grant / award | +18.5K | $11.61 | $215K | May 6, 2026 | Form 4 ↗ |
| Hanstveit ArveDirector | Sale | −2,419 | $10.29 | $25K | Apr 6, 2026 | Form 4 ↗ |
| Hanstveit ArveDirector | Sale | −165.3K | $10.14 | $1.7M | Apr 2, 2026 | Form 4 ↗ |
| Hanstveit ArveDirector | Sale | −25.0K | $10.96 | $274K | Mar 10, 2026 | Form 4 ↗ |
| Hanstveit ArveDirector | Sale | −11.6K | $10.62 | $123K | Mar 6, 2026 | Form 4 ↗ |
| Hanstveit ArveDirector | Sale | −38.4K | $10.71 | $411K | Mar 5, 2026 | Form 4 ↗ |
| Ramanan NatarajanChief Technology Officer | Sale | −272 | $10.57 | $3K | Mar 5, 2026 | Form 4 ↗ |
| Clemente RodneySVP, Water | Sale | −20.6K | $10.61 | $218K | Mar 4, 2026 | Form 4 ↗ |
| Ramanan NatarajanChief Technology Officer | Tax withholding | −2,724 | $10.22 | $28K | Mar 3, 2026 | Form 4 ↗ |
| Hostetler MatthewChief Human Resources Officer | Grant / award | +26.0K | $0.00 | $0 | Feb 17, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding ERII · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.5M | $13.9M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF iShares Trust | 1.3M | $12.1M | 0.01% | Jun 30, 2026 |
| Meridian Contrarian Fund Meridian Fund Inc | 847.0K | $7.6M | 1.12% | Jun 30, 2026 |
| Calvert Global Water Fund Calvert Impact Fund, Inc. | 625.9K | $5.6M | 1.00% | Jun 30, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 593.4K | $5.4M | 0.01% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 570.2K | $4.9M | 0.01% | Jul 31, 2026 |
| Invesco Water Resources ETF Invesco Exchange-Traded Fund Trust | 569.8K | $4.9M | 0.25% | Jul 31, 2026 |
| ROYCE MICRO-CAP TRUST, INC. | 466.1K | $4.2M | 0.46% | Jun 30, 2026 |
| Columbia Small Cap Value Discovery Fund COLUMBIA FUNDS SERIES TRUST I | 473.4K | $4.1M | 0.16% | Jul 31, 2026 |
| iShares Russell 2000 Growth ETF iShares Trust | 423.3K | $3.8M | 0.02% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list ERII's shares (CUSIP 29270J100), each fund at its latest report since Mar 8, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- Threadneedle Management Luxembourg S.A.SCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 14, 2026 · ↗ - Threadneedle Investment Services LimitedSCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 14, 2026 · ↗ - Threadneedle Asset Management LimitedSCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 14, 2026 · ↗ - TC Financing LtdSCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 14, 2026 · ↗ - Threadneedle Asset Management Holdings LimitedSCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 14, 2026 · ↗ - TAM UK Holdings LimitedSCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 14, 2026 · ↗ - Threadneedle Holdings LimitedSCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 14, 2026 · ↗ - TAM UK International Holdings LimitedSCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 14, 2026 · ↗ - CT (Lux) American Smaller Companies, a sub-fund of Columbia Threadneedle (Lux) I SICAVSCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 14, 2026 · ↗ - Ameriprise Financial, Inc.SCHEDULE 13G/A · passive (13G) · 679.2K shares1.3%
Aug 14, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming energy recovery as client
No lobbying filings found naming Energy Recovery, Inc. as the client.
Government Contracts
Federal awards to Energy Recovery, Inc. · USAspending
No federal contract awards found for Energy Recovery, Inc..
U.S. Patents
Recent USPTO applications naming Energy Recovery, Inc.
No USPTO patent applications found for Energy Recovery, Inc..
Annual Financials
From ERII's 10-K filings · XBRL
No annual XBRL figures on record for ERII. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in ERII's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 2.02, 9.01Results of operationsAug 5, 2026
EDGAR ↗ - 8-K · Items 5.02, 9.01Officer / director changeJul 13, 2026
EDGAR ↗ - 8-K/A · Items 5.02Officer / director changeJun 11, 2026
EDGAR ↗ - 8-K · Items 5.07Shareholder voteJun 8, 2026
EDGAR ↗ - 8-K · Items 5.02, 9.01Officer / director changeMay 28, 2026
EDGAR ↗ - 8-K · Items 2.02, 5.02, 8.01, 9.01Results of operations · Officer / director change · Other eventsMay 6, 2026
EDGAR ↗
About Energy Recovery, Inc.
From SEC EDGAR company records
Industry (SIC 3559)Special Industry Machinery, NEC
SectorIndustrials
HeadquartersSAN LEANDRO, CA
IncorporatedDE
SEC CIK0001421517 ↗