Energy Recovery, Inc. (ERII)

Latest Insider Confidence Score

2026Q1

47.2
Bearish

Company insider confidence (by quarter)

2010Q2 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Lorentzen Ole Peter 10% Owner 5,155,239 Sep 17, 2021
Hanstveit Arve Director 693,182 Mar 13, 2025
Trempont Dominique Director 447,651 Jan 6, 2015
Sandlin Terrill 124,000 Jan 4, 2011
Clemente Rodney SVP, Water 100,765 Jul 29, 2025

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 4, 2026 Mar 6, 2026 Clemente Rodney SVP, Water Sell 21.3 -20,568 -15.06% $218.3K
Mar 5, 2026 Mar 6, 2026 Ramanan Natarajan Chief Technology Officer Sell 37.5 -272 -0.51% $2.9K
Mar 3, 2026 Mar 4, 2026 Ramanan Natarajan Chief Technology Officer Sell 46.3 -2,724 -4.90% $27.8K
Feb 17, 2026 Feb 19, 2026 Mancini Michael S. CFO Neutral 90.0 +45,626 155.06% -
Feb 17, 2026 Feb 19, 2026 Moon David W CEO Neutral 90.0 +81,812 43.47% -
Feb 17, 2026 Feb 19, 2026 Yeung William Chief Legal Officer Neutral 90.0 +25,959 30.99% -
Feb 17, 2026 Feb 19, 2026 Ramanan Natarajan Chief Technology Officer Neutral 90.0 +29,106 110.02% -
Feb 17, 2026 Feb 19, 2026 Clemente Rodney SVP, Water Neutral 90.0 +45,626 50.17% -
Feb 17, 2026 Feb 19, 2026 Hostetler Matthew Chief Human Resources Officer Neutral 90.0 +25,959 126.03% -
Feb 5, 2026 Feb 9, 2026 Yeung William Chief Legal Officer Sell 48.1 -1,536 -1.93% $22.8K
Feb 5, 2026 Feb 9, 2026 Clemente Rodney SVP, Water Sell 50.6 -724 -0.79% $10.6K
Jan 30, 2026 Feb 3, 2026 Clemente Rodney SVP, Water Sell 42.5 -9,091 -9.02% $130.2K
Jan 30, 2026 Feb 3, 2026 Hostetler Matthew Chief Human Resources Officer Sell 46.3 -3,359 -14.02% $48K
Jan 30, 2026 Feb 3, 2026 Mancini Michael S. CFO Sell 42.5 -4,798 -14.02% $68.6K
Jan 30, 2026 Feb 3, 2026 Moon David W CEO Sell 42.5 -17,160 -10.19% $245.4K
Jan 28, 2026 Feb 3, 2026 Yeung William Chief Legal Officer Sell 20.0 -17,625 -17.12% $254.3K
Dec 4, 2025 Dec 8, 2025 Hanstveit Arve Director Sell 20.0 -30,000 -3.87% $445.1K
Oct 23, 2025 Oct 27, 2025 Yeung William Chief Legal Officer Sell 37.5 -12,698 -4.09% $226.8K
Oct 20, 2025 Oct 22, 2025 Yeung William Chief Legal Officer Sell 37.5 -3,530 -3.32% $60K
Oct 16, 2025 Oct 17, 2025 Yeung William Chief Legal Officer Sell 37.5 -3,530 -3.32% $58.2K
Oct 3, 2025 Oct 7, 2025 Yeung William Chief Legal Officer Sell 45.0 -3,567 -1.75% $57.1K
Sep 18, 2025 Sep 22, 2025 Yeung William Chief Legal Officer Sell 25.0 -15,454 -13.05% $233.1K
Sep 11, 2025 Sep 15, 2025 Yeung William Chief Legal Officer Sell 7.5 -33,554 -25.63% $486.9K
Jul 25, 2025 Jul 29, 2025 Yeung William Chief Legal Officer Sell 46.3 -1,989 -1.85% $27.6K
Jul 25, 2025 Jul 29, 2025 Clemente Rodney SVP, Water Sell 32.5 -7,707 -7.11% $107.5K
Jun 11, 2025 Jun 13, 2025 Hanstveit Arve Director Sell 20.0 -50,000 -6.06% $635.4K
Jun 5, 2025 Jun 6, 2025 TONDREAU PAMELA L. Director Neutral 90.0 +14,847 36.17% -
Jun 5, 2025 Jun 6, 2025 BUEHLER ALEXANDER J Director Neutral 90.0 +12,038 22.17% -
Jun 5, 2025 Jun 6, 2025 Chow Joan Kai Director Neutral 90.0 +12,038 51.26% -
Jun 5, 2025 Jun 6, 2025 Hanstveit Arve Director Neutral 77.5 +12,038 1.48% -
Jun 5, 2025 Jun 6, 2025 Sabol Colin R Director Neutral 90.0 +12,038 69.35% -
May 13, 2025 May 15, 2025 Moon David W CEO Buy 82.5 +4,200 2.09% $51.2K
May 14, 2025 May 15, 2025 TONDREAU PAMELA L. Director Buy 95.0 +4,200 11.40% $51.6K
Mar 11, 2025 Mar 13, 2025 Hanstveit Arve Director Sell 20.0 -50,000 -6.73% $817K
Mar 3, 2025 Mar 12, 2025 Ramanan Natarajan Chief Technology Officer Neutral 90.0 +26,455 100.00% -
Mar 12, 2025 Ramanan Natarajan Chief Technology Officer Neutral 52.5 - 0.00% -
Mar 10, 2025 Mar 12, 2025 Yeung William Chief Legal Officer Sell 48.8 -944 -0.92% $15.5K
Mar 10, 2025 Mar 12, 2025 Clemente Rodney SVP, Water Sell 45.0 -2,637 -2.37% $42.9K
Feb 24, 2025 Hostetler Matthew Chief Human Resources Officer Neutral 52.5 - 0.00% -
Feb 20, 2025 Feb 24, 2025 Clemente Rodney SVP, Water Sell 17.5 -21,444 -16.18% $330.7K
Feb 3, 2025 Feb 5, 2025 Clemente Rodney SVP, Water Sell 48.8 -944 -0.71% $13.5K
Feb 3, 2025 Feb 5, 2025 Yeung William Chief Legal Officer Sell 48.8 -882 -0.81% $12.6K
Feb 3, 2025 Feb 5, 2025 Ghasripoor Farshad Chief Technology Officer Sell 46.3 -1,420 -1.14% $20.4K
Jan 30, 2025 Feb 3, 2025 Yeung William Chief Legal Officer Sell 46.3 -1,325 -1.20% $19.1K
Jan 30, 2025 Feb 3, 2025 Ghasripoor Farshad Chief Technology Officer Sell 46.3 -1,960 -1.55% $28.3K
Jan 30, 2025 Feb 3, 2025 Clemente Rodney SVP, Water Sell 48.8 -1,309 -0.97% $18.9K
Jan 27, 2025 Jan 29, 2025 Moon David W CEO Sell 42.5 -7,664 -3.67% $110.4K
Jan 27, 2025 Jan 29, 2025 Yeung William Chief Legal Officer Sell 42.5 -4,061 -3.54% $58.5K
Jan 27, 2025 Jan 29, 2025 Ghasripoor Farshad Chief Technology Officer Sell 42.5 -5,721 -4.33% $82.4K
Jan 27, 2025 Jan 29, 2025 Clemente Rodney SVP, Water Sell 42.5 -5,784 -4.11% $83.3K
Jan 23, 2025 Jan 27, 2025 Yeung William Chief Legal Officer Neutral 90.0 +23,956 26.37% -
Jan 23, 2025 Jan 27, 2025 Moon David W CEO Neutral 90.0 +88,980 74.24% -
Jan 23, 2025 Jan 27, 2025 Clemente Rodney SVP, Water Neutral 90.0 +34,223 32.17% -
Jan 23, 2025 Jan 27, 2025 Mancini Michael S. CFO Neutral 90.0 +34,223 100.00% -
Dec 11, 2024 Dec 17, 2024 Hanstveit Arve Director Sell 20.0 -20,000 -2.26% $337.4K
Nov 7, 2024 Nov 12, 2024 Clemente Rodney SVP, Water Sell 12.5 -27,456 -20.52% $549.9K
Oct 28, 2024 Oct 30, 2024 Ghasripoor Farshad Chief Technology Officer Sell 22.5 -10,526 -7.66% $189.1K
Oct 28, 2024 Oct 30, 2024 Clemente Rodney SVP, Water Sell 22.5 -6,505 -4.64% $116.9K
Oct 28, 2024 Oct 30, 2024 Moon David W CEO Sell 26.3 -2,550 -2.84% $45.8K
Aug 19, 2024 Aug 21, 2024 BUEHLER ALEXANDER J Director Neutral 52.5 - 0.00% -
Aug 7, 2024 Mancini Michael S. CFO Neutral 52.5 - 0.00% -
Aug 5, 2024 Aug 7, 2024 Mancini Michael S. CFO Neutral 52.5 - 0.00% -
Aug 5, 2024 Aug 7, 2024 Moon David W CEO Buy 83.8 +3,000 2.51% $48K
Jul 29, 2024 Jul 30, 2024 Ghasripoor Farshad Chief Technology Officer Sell 22.5 -4,079 -2.78% $59.7K
Jul 29, 2024 Jul 30, 2024 Clemente Rodney SVP, Water Sell 26.3 -2,353 -1.65% $34.4K
Jul 29, 2024 Jul 30, 2024 Yeung William Chief Legal Officer Sell 26.3 -2,012 -2.17% $29.4K
Jun 18, 2024 Jun 20, 2024 Moon David W CEO Sell 26.3 -1,219 -1.01% $15.6K
Jun 6, 2024 Jun 10, 2024 Chow Joan Kai Director Neutral 90.0 +11,127 90.05% -
Jun 6, 2024 Jun 10, 2024 Hanstveit Arve Director Sell 30.0 -8,873 -0.99% $264K
Jun 6, 2024 Jun 10, 2024 BUEHLER ALEXANDER J Director Neutral 90.0 +11,127 47.71% -
Jun 6, 2024 Jun 10, 2024 TONDREAU PAMELA L. Director Neutral 90.0 +13,724 59.36% -
Jun 6, 2024 Jun 10, 2024 Sabol Colin R Director Neutral 90.0 +11,127 178.55% -
May 28, 2024 May 30, 2024 Ballard Joshua CFO Sell 22.5 -4,051 -9.12% $54.9K
May 22, 2024 May 24, 2024 Mao Robert Yu Lang Director Sell 20.0 -21,045 -5.96% $291.7K
May 8, 2024 May 10, 2024 Hanstveit Arve Director Sell 20.0 -35,000 -3.78% $473.6K
May 7, 2024 May 9, 2024 Moon David W CEO Buy 82.5 +2,460 2.08% $141.3K
Mar 11, 2024 Mar 13, 2024 Ballard Joshua CFO Sell 26.3 -979 -2.16% $14.7K
Mar 11, 2024 Mar 13, 2024 Clemente Rodney SVP, Water Sell 36.3 -825 -0.57% $12.4K
Mar 11, 2024 Mar 13, 2024 Yeung William Chief Legal Officer Sell 26.3 -978 -1.11% $14.7K
Mar 4, 2024 Mar 6, 2024 Mao Robert Yu Lang Director Sell 20.0 -35,779 -7.39% $563.2K
Feb 29, 2024 Mar 4, 2024 Mao Robert Yu Lang Director Sell 17.5 -77,339 -10.53% $1.2M
Feb 28, 2024 Mar 1, 2024 Hanstveit Arve Director Sell 20.0 -50,000 -5.12% $774.6K
Feb 27, 2024 Feb 29, 2024 Moon David W CEO Buy 95.0 +10,750 10.01% $166.7K
Feb 5, 2024 Feb 7, 2024 Yeung William Chief Legal Officer Sell 26.3 -1,013 -1.07% $15.1K
Feb 5, 2024 Feb 7, 2024 Clemente Rodney SVP, Water Sell 36.3 -975 -0.67% $14.5K
Feb 5, 2024 Feb 7, 2024 Ghasripoor Farshad Chief Technology Officer Sell 36.3 -1,118 -0.76% $16.6K
Feb 1, 2024 Feb 5, 2024 Yeung William Chief Legal Officer Sell 26.3 -2,133 -2.20% $32.9K
Feb 1, 2024 Feb 5, 2024 Ghasripoor Farshad Chief Technology Officer Sell 26.3 -2,449 -1.63% $37.7K
Feb 1, 2024 Feb 5, 2024 Clemente Rodney SVP, Water Sell 26.3 -2,277 -1.55% $35.1K
Feb 1, 2024 Feb 5, 2024 Ballard Joshua CFO Sell 26.3 -746 -1.62% $11.7K
Jan 30, 2024 Feb 1, 2024 Clemente Rodney SVP, Water Sell 36.3 -830 -0.56% $13.2K
Jan 30, 2024 Feb 1, 2024 Yeung William Chief Legal Officer Sell 36.3 -823 -0.89% $13.1K
Jan 30, 2024 Feb 1, 2024 Ghasripoor Farshad Chief Technology Officer Sell 36.3 -891 -0.59% $14.2K
Jan 25, 2024 Jan 29, 2024 Ghasripoor Farshad Chief Technology Officer Neutral 90.0 +42,450 39.02% -
Jan 25, 2024 Jan 29, 2024 Clemente Rodney SVP, Water Neutral 90.0 +69,925 90.04% -
Jan 25, 2024 Jan 29, 2024 Yeung William Chief Legal Officer Neutral 90.0 +39,542 67.85% -
Jan 25, 2024 Jan 29, 2024 Moon David W CEO Neutral 90.0 +80,445 435.66% -
Jan 2, 2024 Jan 4, 2024 Ballard Joshua CFO Sell 25.0 -12,500 -11.93% $231.8K
Nov 10, 2023 Nov 13, 2023 Chow Joan Kai Director Buy 91.3 +1,500 13.82% $26.7K
Nov 8, 2023 Nov 13, 2023 Mao Robert Yu Lang Director Neutral 52.5 - 0.00% -