ENERGY RECOVERY INC (ERII) Stock Ownership

NASDAQ:ERII • US29270J1007

Current stock price

10.05 USD
-0.12 (-1.18%)
Last:

ERII Ownership information

ERII Ownership Chart.ERII Ownership Chart: showing Insider, Institutional ownership and shares available to the public.ERII Ownership.InsiderInstitutionalPublic



Shares Outstanding52.83M
Float51.56M
Float Short Interest Percentage2.83%
Owners (insider)3.15%
Owners (institutional)93.4%
Owners (insider) change2.64%
Owners (institutional) change-1.28%
ERII Institutional Ownership HistoryERII Institutional Ownership HistoryERII Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 10M 20M 30M 40M
ERII Historical Insider Transactions ChartERII Historical Insider Buy and Sell Transactions ChartERII Historical Insider Transactions Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 0 100K 200K
DateNameTypeSharesPriceAmount
Mar 10, 2026Hanstveit ArveOpen Market Sale2500010.96$ 273,975.00
Mar 5, 2026Hanstveit ArveOpen Market Sale5000010.69$ 534,399.71
Mar 3, 2026Ramanan NatarajanOption Excercise272410.22$ 27,839.28
Feb 17, 2026Mancini Michael S.Grant456260.00$ 0.00
Feb 17, 2026Moon David WGrant818120.00$ 0.00
Feb 17, 2026Yeung WilliamGrant259590.00$ 0.00
Feb 17, 2026Ramanan NatarajanGrant291060.00$ 0.00
Feb 17, 2026Clemente RodneyGrant456260.00$ 0.00
Feb 17, 2026Hostetler MatthewGrant259590.00$ 0.00
Feb 5, 2026Yeung WilliamOpen Market Sale153614.82$ 22,765.54
Feb 5, 2026Clemente RodneyOpen Market Sale72414.59$ 10,563.16
Jan 30, 2026Clemente RodneyOption Excercise909114.33$ 130,244.20
Jan 30, 2026Yeung WilliamOption Excercise962514.34$ 137,988.55
Jan 30, 2026Mancini Michael S.Option Excercise479814.30$ 68,611.40
Jan 30, 2026Moon David WOption Excercise1716014.30$ 245,388.00
Jan 30, 2026Hostetler MatthewOption Excercise335914.30$ 48,033.70
Jan 28, 2026Yeung WilliamOpen Market Sale800014.54$ 116,334.39
Dec 4, 2025Hanstveit ArveOpen Market Sale3000014.84$ 445,110.00
Oct 23, 2025Yeung WilliamOption Excercise126988.69$ 110,401.22
Oct 23, 2025Yeung WilliamOpen Market Sale1269817.86$ 226,799.00
Oct 20, 2025Yeung WilliamOption Excercise35307.50$ 26,475.00
Oct 20, 2025Yeung WilliamOpen Market Sale353017.00$ 60,010.00
Oct 16, 2025Yeung WilliamOption Excercise35307.50$ 26,475.00
Oct 16, 2025Yeung WilliamOpen Market Sale353016.50$ 58,245.00
Oct 3, 2025Yeung WilliamOption Excercise35677.50$ 26,752.50
Oct 3, 2025Yeung WilliamOpen Market Sale356716.00$ 57,072.00
Sep 18, 2025Yeung WilliamOption Excercise154548.95$ 138,313.30
Sep 18, 2025Yeung WilliamOpen Market Sale1545415.09$ 233,139.04
Sep 11, 2025Yeung WilliamOption Excercise308778.95$ 276,349.15
Sep 11, 2025Yeung WilliamOpen Market Sale3355414.51$ 486,868.54
Jul 28, 2025Clemente RodneyOpen Market Sale538713.97$ 75,256.39
Jul 25, 2025Yeung WilliamOption Excercise198913.88$ 27,607.32
Jul 25, 2025Clemente RodneyOption Excercise232013.88$ 32,201.60
Jun 11, 2025Hanstveit ArveOpen Market Sale5000012.71$ 635,400.00
Jun 5, 2025TONDREAU PAMELA L.Grant148470.00$ 0.00
Jun 5, 2025BUEHLER ALEXANDER JGrant120380.00$ 0.00
Jun 5, 2025Chow Joan KaiGrant120380.00$ 0.00
Jun 5, 2025Hanstveit ArveGrant120380.00$ 0.00
Jun 5, 2025Sabol Colin RGrant120380.00$ 0.00
May 14, 2025TONDREAU PAMELA L.Open Market Purchase420012.28$ 51,569.70
May 13, 2025Moon David WOpen Market Purchase420012.20$ 51,240.00