Energy Recovery, Inc. (ERII)
$7.77-$0.13 (-1.65%) Today
William Yeung - Officer
Colin R. Sabol - Director
Pamela L. Tondreau - Director
Arve Hanstveit - DirectorArve Hanstveit - DirectorArve Hanstveit - DirectorEnergy Recovery Inc designs and manufactures energy-saving technologies. The firm uses its proprietary pressure exchanger technology to help customers in multiple industries improve their operations and lower their emissions. Using its proprietary technology, it offers energy recovery devices, including pressure exchangers, pumps, and turbochargers, mainly used for seawater desalination and wastewater treatment. Additionally, the company is involved in the development of emerging technologies, such as the PX G1300 used in industrial and commercial refrigeration applications. The firm's reportable operating segments are: Water, which generates maximum revenue, and Emerging Technologies. Geographically, it generates maximum revenue from the Middle East, and the rest from other markets.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 1 | 11,180 | $99K |
| Open-market sale | 3 | 22,335 | $193K |
| Grant or award | 6 | 111,913 | |
| Option exercise | 2 | 30,654 | |
| Tax withholding / forfeiture | 2 | 5,148 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
44 Form 4 filings on record, the earliest from Oct 30, 2024, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
 Rodney Clemente - Officer | Tax withholding / forfeiture | Common Stock | 2,320 | $8.42 | $20K | |
| Rodney Clemente - Officer | Open-market sale | Common Stock | 5,387 | $8.56 | $46K | |
| William Yeung - Officer | Tax withholding / forfeiture | Common Stock | 2,828 | $8.42 | $24K | |
| William Yeung - Officer | Open-market sale | Common Stock | 2,048 | $8.56 | $18K | |
| John Joseph Mitchell - Director | Grant or award | Common Stock | 16,797 | $0.00 | - | |
 Aidan Ryan - Officer | Grant or award | Common Stock | 18,518 | $11.61 | $215K | |
| Colin R. Sabol - Director | Open-market purchase | Common Stock | 11,180 | $8.88 | $99K | |
| Alexander J. Buehler - Officer | Option exercise | Common Stock | 15,327 | $8.60 | $132K | |
| Alexander J. Buehler - Officer | Open-market sale | Common Stock | 14,900 | $8.71 | $130K | |
| Alexander J. Buehler - Officer | Option exercise | Stock Option (Right to Buy) | 15,327 | $8.60 | $132K | |
| Pamela L. Tondreau - Director | Grant or award | Common Stock | 22,316 | $8.29 | $185K | |
| Joan Kai Chow - Director | Grant or award | Common Stock | 18,094 | $8.29 | $150K | |
| Colin R. Sabol - Director | Grant or award | Common Stock | 18,094 | $8.29 | $150K | |
| Arve Hanstveit - Director | Grant or award | Common Stock | 18,094 | $8.29 | $150K | |
| Pamela L. Tondreau - Director | Open-market purchase | Common Stock | 20,000 | $8.34 | $167K | |
| Arve Hanstveit - Director | Open-market sale | Common Stock | 2,419 | $10.29 | $25K | |
| Arve Hanstveit - Director | Open-market sale | Common Stock | 165,292 | $10.14 | $1.68M | |
| Arve Hanstveit - Director | Open-market sale | Common Stock | 25,000 | $10.96 | $274K | |
| Arve Hanstveit - Director | Open-market sale | Common Stock | 38,418 | $10.71 | $411K | |
| Arve Hanstveit - Director | Open-market sale | Common Stock | 11,582 | $10.62 | $123K | |
| Rodney Clemente - Officer | Open-market sale | Common Stock | 20,568 | $10.61 | $218K | |
 Natarajan Ramanan - Officer | Open-market sale | Common Stock | 272 | $10.57 | $3K | |
| Natarajan Ramanan - Officer | Tax withholding / forfeiture | Common Stock | 2,724 | $10.22 | $28K | |
| Michael S. Mancini - Officer | Grant or award | Common Stock | 45,626 | $0.00 | - | |
| David W. Moon - Officer | Grant or award | Common Stock | 81,812 | $0.00 | - | |
| William Yeung - Officer | Grant or award | Common Stock | 25,959 | $0.00 | - | |
| Natarajan Ramanan - Officer | Grant or award | Common Stock | 29,106 | $0.00 | - | |
| Rodney Clemente - Officer | Grant or award | Common Stock | 45,626 | $0.00 | - | |
 Matthew Hostetler - Officer | Grant or award | Common Stock | 25,959 | $0.00 | - | |
| William Yeung - Officer | Open-market sale | Common Stock | 890 | $14.59 | $13K | |
| William Yeung - Officer | Open-market sale | Common Stock | 646 | $15.14 | $10K | |
| Rodney Clemente - Officer | Open-market sale | Common Stock | 724 | $14.59 | $11K | |
| Rodney Clemente - Officer | Tax withholding / forfeiture | Common Stock | 694 | $14.65 | $10K | |
| Rodney Clemente - Officer | Tax withholding / forfeiture | Common Stock | 8,397 | $14.30 | $120K | |
| Matthew Hostetler - Officer | Tax withholding / forfeiture | Common Stock | 3,359 | $14.30 | $48K | |
| Michael S. Mancini - Officer | Tax withholding / forfeiture | Common Stock | 4,798 | $14.30 | $69K | |
| David W. Moon - Officer | Tax withholding / forfeiture | Common Stock | 17,160 | $14.30 | $245K |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR |
Energy Recovery, Inc. (ERII) had 10 insider filings in the last 90 days, with the most recent on 2026-07-30. The full record for ERII runs to 44 Form 4 filings, the earliest from 2024-10-30. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
1 insider purchase of ERII was filed in the last 90 days, totaling $99K.
3 insider sales of ERII were filed in the last 90 days, totaling $193K.
This page tracks ERII Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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