Skip to main content

Energy Recovery, Inc.

ERII
Exchange
Nasdaq
Industry
Special Industry Machinery, NEC
SEC CIK
0001421517

In the last 90 days, Energy Recovery, Inc. insiders filed 0 open-market purchases and 2 sales; 199 institutions reported holding it in 13F filings for Q2 2026, worth $395.6M in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Energy Recovery, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
2 filings
2 insiders, $63.6K in total
Insiders trading
2
Net value
−$63.6K
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Energy Recovery, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Energy Recovery, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Clemente RodneySVP, Water108,301Jul 29, 20265
Yeung WilliamChief Legal Officer99,291Jul 29, 20268
Mitchell John JosephDirector16,797Jul 22, 20261
Ryan AidanInterim CFO34,133Jun 25, 20261
Buehler Alexander JInterim President and CEO66,755Jun 17, 20261
Sabol Colin RDirector55,671Jun 17, 20262
Chow Joan KaiDirector52,116Jun 5, 20261
Hanstveit ArveDirector400,603Jun 5, 20266
Tondreau Pamela L.Director60,844Jun 5, 20262
Ramanan NatarajanChief Technology Officer52,565Mar 6, 20263
Moon David WPresident and CEO233,069Feb 19, 20262
Mancini Michael S.Chief Financial Officer75,051Feb 19, 20262
Hostetler MatthewChief Human Resources Officer46,556Feb 19, 20262
Ghasripoor FarshadChief Technology Officer70,230IndirectFeb 5, 20250
Ballard JoshuaChief Financial Officer40,376May 30, 20240
Mao Robert Yu LangDirector248,935May 24, 20240
Pollina Lisa ADirector4,007Jun 13, 20230
Foda SherifDirector9,619Jun 12, 20230
Arvarius AS10% Owner0Oct 20, 20210
Lorentzen Ole Peter10% Owner5,155,239IndirectSep 17, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Feb 7, 2024 (view filing)Feb 52 daysYeung WilliamChief Legal OfficerSSale−1.01K$14.89−$15.1K−1.1%88.3K after
Feb 7, 2024 (view filing)Feb 52 daysClemente RodneySVP, WaterSSale−975$14.89−$14.5K−0.7%143.5K after
Feb 7, 2024 (view filing)Feb 52 daysGhasripoor FarshadChief Technology OfficerSSale−1.12K$14.89−$16.6K−0.8%141.6K after
Feb 5, 2024 (view filing)Feb 1-24 daysYeung WilliamChief Legal OfficerSSale−2.13K$15.42−$32.9K−2.3%89.3K after2 lots
Feb 5, 2024 (view filing)Feb 1-24 daysGhasripoor FarshadChief Technology OfficerSSale−2.45K$15.41−$37.7K−1.7%142.7K after2 lots
Feb 5, 2024 (view filing)Feb 1-24 daysClemente RodneySVP, WaterSSale−2.28K$15.41−$35.1K−1.6%144.5K after2 lots
Feb 5, 2024 (view filing)Feb 14 daysBallard JoshuaChief Financial OfficerSSale−746$15.64−$11.7K−1.6%45.4K after
Feb 1, 2024 (view filing)Jan 302 daysClemente RodneySVP, WaterSSale−830$15.91−$13.2K−0.6%146.8K after
Feb 1, 2024 (view filing)Jan 302 daysYeung WilliamChief Legal OfficerSSale−823$15.91−$13.1K−0.9%91.4K after
Feb 1, 2024 (view filing)Jan 302 daysGhasripoor FarshadChief Technology OfficerSSale−891$15.91−$14.2K−0.6%145.1K after
Jan 4, 2024 (view filing)Jan 2-32 daysBallard JoshuaChief Financial OfficerSSale−12.5K$18.55−$231.8K−21.3%46.2K after2 lots
Nov 13, 2023 (view filing)Nov 103 daysChow Joan KaiDirectorPPurchase+1.50K$17.79+$26.7KNew position1.50K after
Nov 13, 2023 (view filing)Nov 94 daysMoon David WInterim President and CEOPPurchase+8.50K$18.11+$153.9KNew position8.50K after
Nov 13, 2023 (view filing)Nov 94 daysSabol Colin RDirectorPPurchase+2.00K$18.00+$36.0K+200.0%3.00K after
Nov 13, 2023 (view filing)Nov 67 daysSabol Colin RDirectorPPurchase+1.00K$17.75+$17.8KNew position1.00K afterAmended
Nov 8, 2023 (view filing)Nov 6-72 daysMao Robert Yu LangDirectorSSale−251.4K$17.89−$4.50M−70.6%104.6K after2 lots
Nov 8, 2023 (view filing)Nov 71 dayTondreau Pamela L.DirectorPPurchase+8.35K$17.91+$149.5K+56.5%23.1K after
Sep 14, 2023 (view filing)Sep 122 daysBallard JoshuaChief Financial OfficerSSale−700$24.03−$16.8K−100.0%0 after
Aug 31, 2023 (view filing)Aug 292 daysGhasripoor FarshadChief Technology OfficerSSale−51.1K$27.92−$1.43M−38.5%81.8K after
Aug 29, 2023 (view filing)Aug 281 dayYeung WilliamChief Legal OfficerSSale−40.6K$27.75−$1.13M−43.5%52.7K after
Aug 29, 2023 (view filing)Aug 254 daysClemente RodneySVP, WaterSSale−31.4K$27.03−$848.0K−35.9%55.9K after
Jun 23, 2023 (view filing)Jun 203 daysLateHanstveit ArveDirectorSSale−15.0K$27.50−$412.5K−1.7%857.1K after
Jun 13, 2023 (view filing)Jun 9-124 daysPollina Lisa ADirectorSSale−1.84K$27.02−$49.8K−31.5%4.01K after2 lots
Jun 5, 2023 (view filing)Jun 14 daysHanstveit ArveDirectorSSale−15.3K$23.73−$363.7K−1.7%868.4K after
Apr 5, 2023 (view filing)Apr 32 daysHanstveit ArveDirectorSSale−16.0K$23.50−$376.0K−1.8%868.4K after10b5-1
Mar 13, 2023 (view filing)Mar 94 daysYeung WilliamChief Legal OfficerSSale−882$23.99−$21.2K−1.1%76.6K after
Mar 13, 2023 (view filing)Mar 94 daysClemente RodneySVP, WaterSSale−768$23.99−$18.4K−2.3%32.8K after
Mar 13, 2023 (view filing)Mar 94 daysBallard JoshuaChief Financial OfficerSSale−883$23.99−$21.2K−3.5%24.6K after
Feb 7, 2023 (view filing)Feb 34 daysBallard JoshuaChief Financial OfficerSSale−3.21K$22.47−$72.1K−11.2%25.5K after
Feb 7, 2023 (view filing)Feb 34 daysYeung WilliamChief Legal OfficerSSale−836$22.75−$19.0K−1.1%77.5K after
Feb 7, 2023 (view filing)Feb 34 daysGhasripoor FarshadChief Technology OfficerSSale−987$22.75−$22.5K−1.5%62.9K after
Feb 7, 2023 (view filing)Feb 34 daysClemente RodneySVP, WaterSSale−925$22.75−$21.0K−1.6%55.6K after
Feb 3, 2023 (view filing)Feb 1-22 daysClemente RodneySVP, WaterSSale−3.83K$22.41−$85.8K−6.3%56.6K after2 lots
Feb 3, 2023 (view filing)Feb 1-22 daysYeung WilliamChief Legal OfficerSSale−3.71K$22.40−$83.0K−4.5%78.4K after2 lots
Feb 3, 2023 (view filing)Feb 1-22 daysBallard JoshuaChief Financial OfficerSSale−17.1K$21.97−$376.5K−37.4%28.7K after2 lots
Feb 3, 2023 (view filing)Feb 1-22 daysGhasripoor FarshadChief Technology OfficerSSale−4.25K$22.41−$95.3K−6.2%63.9K after2 lots
Nov 18, 2022 (view filing)Nov 162 daysHanstveit ArveDirectorSSale−17.2K$20.93−$360.7K−1.9%884.4K after
Sep 16, 2022 (view filing)Sep 142 daysFoda SherifDirectorSSale−15.9K$25.50−$404.9K−62.3%9.62K after
Aug 11, 2022 (view filing)Aug 92 daysMao Robert Yu LangPresident and CEOSSale−2.00K$22.46−$44.9K−100.0%0 after
Aug 10, 2022 (view filing)Aug 82 daysPollina Lisa ADirectorSSale−2.70K$23.08−$62.3K−31.6%5.85K after
Jun 17, 2022 (view filing)Jun 152 daysYeung WilliamChief Legal OfficerSSale−2.50K$19.07−$47.7K−31.0%5.57K after
Jun 6, 2022 (view filing)Jun 33 daysBuehler Alexander JDirectorSSale−50.0K$21.34−$1.07M−77.1%14.8K after
Nov 29, 2021 (view filing)Nov 245 daysFoda SherifDirectorSSale−20.0K$22.46−$449.2K−80.6%4.81K after
Nov 24, 2021 (view filing)Nov 222 daysHanstveit ArveDirectorSSale−25.0K$24.61−$615.3K−2.8%879.5K after
Sep 17, 2021 (view filing)Sep 152 daysLorentzen Ole Peter10% OwnerSSale−1.50M$20.81−$31.2M−22.5%5.16M after
Sep 15, 2021 (view filing)Sep 132 daysFoda SherifDirectorSSale−5.59K$21.59−$120.8K−53.8%4.81K after
Jul 6, 2021 (view filing)Jul 1-25 daysLorentzen Ole Peter10% OwnerSSale−185.1K$22.55−$4.17M−2.7%6.66M after2 lots