Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Energy Recovery, Inc. (ERII) since 2015 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Energy Recovery, Inc.. Table 2 shows the detailed insider transactions. This company's CIK number is 1421517.
Total stock buying since 2015: $2,830,532.
Total stock sales since 2015: $109,437,367.
Total stock option exercises since 2015: $13,871,279.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 8,400 | $102,811 | 78,674 | $1,071,276 | 0 | $0 |
| 2024 | 24,250 | $356,029 | 297,473 | $4,717,547 | 239,327 | $1,401,855 |
| 2023 | 21,350 | $383,910 | 420,172 | $8,826,500 | 474,230 | $4,187,830 |
| 2022 | 0 | $0 | 90,315 | $1,987,881 | 100,351 | $483,165 |
| 2021 | 0 | $0 | 3,131,898 | $62,340,439 | 303,803 | $3,389,206 |
| 2020 | 0 | $0 | 1,810,813 | $14,209,773 | 172,757 | $574,487 |
| 2019 | 0 | $0 | 791,878 | $7,591,803 | 608,828 | $3,116,745 |
| 2018 | 0 | $0 | 210,104 | $1,827,270 | 160,104 | $434,546 |
| 2017 | 41,298 | $303,027 | 59,117 | $545,687 | 9,117 | $31,571 |
| 2016 | 72,509 | $699,363 | 472,700 | $4,884,695 | 76,142 | $251,874 |
| 2015 | 334,721 | $985,392 | 224,700 | $1,434,496 | 0 | $0 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-07 | 0 | $0 | 5,387 | $75,256 | 0 | $0 |
| 2025-06 | 0 | $0 | 50,000 | $635,400 | 0 | $0 |
| 2025-05 | 8,400 | $102,811 | 0 | $0 | 0 | $0 |
| 2025-03 | 0 | $0 | 1,843 | $29,911 | 0 | $0 |
| 2025-02 | 0 | $0 | 21,444 | $330,709 | 0 | $0 |
| 2024-12 | 0 | $0 | 20,000 | $337,400 | 0 | $0 |
| 2024-11 | 0 | $0 | 27,456 | $549,927 | 0 | $0 |
| 2024-10 | 0 | $0 | 19,581 | $351,899 | 0 | $0 |
| 2024-08 | 3,000 | $48,009 | 0 | $0 | 19,841 | $57,935 |
| 2024-07 | 0 | $0 | 8,444 | $123,526 | 0 | $0 |
| 2024-06 | 0 | $0 | 21,219 | $279,525 | 0 | $0 |
| 2024-05 | 10,500 | $141,288 | 60,096 | $820,078 | 39,903 | $310,843 |
| 2024-03 | 0 | $0 | 75,608 | $1,206,759 | 127,769 | $799,299 |
| 2024-02 | 10,750 | $166,732 | 50,025 | $776,137 | 39,314 | $138,778 |
| 2024-01 | 0 | $0 | 15,044 | $272,296 | 12,500 | $95,000 |
| 2023-11 | 21,350 | $383,910 | 251,383 | $4,496,121 | 361,399 | $3,291,285 |
| 2023-09 | 0 | $0 | 700 | $16,823 | 0 | $0 |
| 2023-08 | 0 | $0 | 82,504 | $2,275,530 | 82,504 | $650,733 |
| 2023-06 | 0 | $0 | 32,170 | $825,990 | 15,327 | $131,812 |
| 2023-04 | 0 | $0 | 16,000 | $376,000 | 0 | $0 |
| 2023-03 | 0 | $0 | 2,533 | $60,775 | 0 | $0 |
| 2023-02 | 0 | $0 | 34,882 | $775,261 | 15,000 | $114,000 |
| 2022-11 | 0 | $0 | 17,236 | $360,801 | 17,236 | $93,591 |
| 2022-09 | 0 | $0 | 15,879 | $404,914 | 15,879 | $134,733 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-07-28 | Clemente Rodney (SVP, Water) | Sale | 5,387 | 13.97 | 75,256 |
| 2025-06-12 | Hanstveit Arve (Director) | Sale | 30,000 | 12.68 | 380,400 |
| 2025-06-11 | Hanstveit Arve (Director) | Sale | 20,000 | 12.75 | 255,000 |
| 2025-05-14 | Tondreau Pamela L. (Director) | Buy | 4,200 | 12.28 | 51,571 |
| 2025-05-13 | Moon David W (President and CEO) | Buy | 4,200 | 12.20 | 51,240 |
| 2025-03-11 | Clemente Rodney (SVP, Water) | Sale | 1,843 | 16.23 | 29,911 |
| 2025-02-20 | Clemente Rodney (SVP, Water) | Sale | 21,444 | 15.42 | 330,709 |
| 2024-12-11 | Hanstveit Arve (Director) | Sale | 20,000 | 16.87 | 337,400 |
| 2024-11-11 | Clemente Rodney (SVP, Water) | Sale | 4,207 | 20.06 | 84,392 |
| 2024-11-08 | Clemente Rodney (SVP, Water) | Sale | 3,631 | 20.15 | 73,175 |
| 2024-11-07 | Clemente Rodney (SVP, Water) | Sale | 19,618 | 20.00 | 392,360 |
| 2024-10-28 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 10,526 | 17.97 | 189,120 |
| 2024-10-28 | Clemente Rodney (SVP, Water) | Sale | 6,505 | 17.98 | 116,946 |
| 2024-10-28 | Moon David W (President and CEO) | Sale | 2,550 | 17.97 | 45,833 |
| 2024-08-19 | Buehler Alexander J (Director) | Option Ex | 19,841 | 2.92 | 57,935 |
| 2024-08-05 | Moon David W (President and CEO) | Buy | 3,000 | 16.00 | 48,009 |
| 2024-07-29 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 4,079 | 14.63 | 59,671 |
| 2024-07-29 | Yeung William (Chief Legal Officer) | Sale | 2,012 | 14.63 | 29,433 |
| 2024-07-29 | Clemente Rodney (SVP, Water) | Sale | 2,353 | 14.63 | 34,422 |
| 2024-06-18 | Moon David W (President and CEO) | Sale | 1,219 | 12.77 | 15,565 |
| 2024-06-07 | Hanstveit Arve (Director) | Sale | 20,000 | 13.20 | 263,960 |
| 2024-05-28 | Ballard Joshua (Chief Financial Officer) | Sale | 4,051 | 13.54 | 54,866 |
| 2024-05-23 | Mao Robert Yu Lang (Director) | Option Ex | 12,836 | 7.79 | 99,992 |
| 2024-05-22 | Mao Robert Yu Lang (Director) | Sale | 21,045 | 13.86 | 291,662 |
| 2024-05-22 | Mao Robert Yu Lang (Director) | Option Ex | 27,067 | 7.79 | 210,851 |
| 2024-05-08 | Hanstveit Arve (Director) | Sale | 35,000 | 13.53 | 473,550 |
| 2024-05-07 | Moon David W (President and CEO) | Buy | 10,500 | 13.46 | 141,288 |
| 2024-03-11 | Ballard Joshua (Chief Financial Officer) | Sale | 979 | 14.98 | 14,667 |
| 2024-03-11 | Clemente Rodney (SVP, Water) | Sale | 825 | 14.98 | 12,360 |
| 2024-03-04 | Mao Robert Yu Lang (Director) | Sale | 35,779 | 15.74 | 563,233 |
| 2024-03-04 | Mao Robert Yu Lang (Director) | Option Ex | 89,744 | 7.54 | 676,669 |
| 2024-03-01 | Mao Robert Yu Lang (Director) | Sale | 38,025 | 16.21 | 616,499 |
| 2024-03-01 | Mao Robert Yu Lang (Director) | Option Ex | 38,025 | 3.23 | 122,630 |
| 2024-02-29 | Mao Robert Yu Lang (Director) | Sale | 39,314 | 15.58 | 612,512 |
| 2024-02-29 | Mao Robert Yu Lang (Director) | Option Ex | 39,314 | 3.53 | 138,778 |
| 2024-02-27 | Moon David W (President and CEO) | Buy | 10,750 | 15.51 | 166,732 |
| 2024-02-05 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 1,118 | 14.89 | 16,647 |
| 2024-02-05 | Yeung William (Chief Legal Officer) | Sale | 1,013 | 14.89 | 15,083 |
| 2024-02-05 | Clemente Rodney (SVP, Water) | Sale | 975 | 14.89 | 14,517 |
| 2024-02-02 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 1,654 | 15.30 | 25,306 |
| 2024-02-02 | Yeung William (Chief Legal Officer) | Sale | 1,400 | 15.30 | 21,420 |
| 2024-02-02 | Clemente Rodney (SVP, Water) | Sale | 1,538 | 15.30 | 23,531 |
| 2024-02-01 | Ballard Joshua (Chief Financial Officer) | Sale | 746 | 15.64 | 11,667 |
| 2024-02-01 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 795 | 15.64 | 12,433 |
| 2024-02-01 | Yeung William (Chief Legal Officer) | Sale | 733 | 15.64 | 11,464 |
| 2024-02-01 | Clemente Rodney (SVP, Water) | Sale | 739 | 15.64 | 11,557 |
| 2024-01-30 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 891 | 15.91 | 14,179 |
| 2024-01-30 | Yeung William (Chief Legal Officer) | Sale | 823 | 15.91 | 13,097 |
| 2024-01-30 | Clemente Rodney (SVP, Water) | Sale | 830 | 15.91 | 13,208 |
| 2024-01-03 | Ballard Joshua (Chief Financial Officer) | Sale | 6,250 | 18.59 | 116,187 |
| 2024-01-03 | Ballard Joshua (Chief Financial Officer) | Option Ex | 6,250 | 7.60 | 47,500 |
| 2024-01-02 | Ballard Joshua (Chief Financial Officer) | Sale | 6,250 | 18.50 | 115,625 |
| 2024-01-02 | Ballard Joshua (Chief Financial Officer) | Option Ex | 6,250 | 7.60 | 47,500 |
| 2023-11-10 | Chow Joan Kai (Director) | Buy | 1,500 | 17.79 | 26,685 |
| 2023-11-09 | Sabol Colin R (Director) | Buy | 2,000 | 18.00 | 36,000 |
| 2023-11-09 | Moon David W (Interim President and CEO) | Buy | 8,500 | 18.11 | 153,935 |
| 2023-11-08 | Mao Robert Yu Lang (Director) | Option Ex | 71,508 | 9.85 | 704,139 |
| 2023-11-07 | Tondreau Pamela L. (Director) | Buy | 8,350 | 17.91 | 149,540 |
| 2023-11-07 | Mao Robert Yu Lang (Director) | Sale | 121,383 | 18.02 | 2,187,321 |
| 2023-11-07 | Mao Robert Yu Lang (Director) | Option Ex | 159,891 | 9.85 | 1,574,446 |
| 2023-11-06 | Sabol Colin R (Director) | Buy | 1,000 | 17.75 | 17,750 |
| 2023-11-06 | Mao Robert Yu Lang (Director) | Sale | 130,000 | 17.76 | 2,308,800 |
| 2023-11-06 | Mao Robert Yu Lang (Director) | Option Ex | 130,000 | 7.79 | 1,012,700 |
| 2023-09-12 | Ballard Joshua (Chief Financial Officer) | Sale | 700 | 24.03 | 16,823 |
| 2023-08-29 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 51,131 | 27.92 | 1,427,424 |
| 2023-08-29 | Ghasripoor Farshad (Chief Technology Officer) | Option Ex | 51,131 | 7.55 | 386,039 |
| 2023-08-25 | Clemente Rodney (SVP, Water) | Sale | 31,373 | 27.03 | 848,106 |
| 2023-08-25 | Clemente Rodney (SVP, Water) | Option Ex | 31,373 | 8.44 | 264,694 |
| 2023-06-20 | Hanstveit Arve (Director) | Sale | 15,000 | 27.50 | 412,500 |
| 2023-06-12 | Pollina Lisa A (Director) | Sale | 800 | 27.04 | 21,635 |
| 2023-06-09 | Pollina Lisa A (Director) | Sale | 1,043 | 27.00 | 28,161 |
| 2023-06-01 | Hanstveit Arve (Director) | Sale | 15,327 | 23.73 | 363,694 |
| 2023-06-01 | Hanstveit Arve (Director) | Option Ex | 15,327 | 8.60 | 131,812 |
| 2023-04-03 | Hanstveit Arve | Sale | 16,000 | 23.50 | 376,000 |
| 2023-03-09 | Ballard Joshua (Chief Financial Officer) | Sale | 883 | 23.99 | 21,186 |
| 2023-03-09 | Yeung William (Chief Legal Officer) | Sale | 882 | 23.99 | 21,162 |
| 2023-03-09 | Clemente Rodney (SVP, Water) | Sale | 768 | 23.99 | 18,427 |
| 2023-02-03 | Ballard Joshua (Chief Financial Officer) | Sale | 3,208 | 22.47 | 72,083 |
| 2023-02-03 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 987 | 22.75 | 22,458 |
| 2023-02-03 | Yeung William (Chief Legal Officer) | Sale | 836 | 22.75 | 19,022 |
| 2023-02-03 | Clemente Rodney (SVP, Water) | Sale | 925 | 22.75 | 21,047 |
| 2023-02-02 | Ballard Joshua (Chief Financial Officer) | Sale | 2,138 | 22.57 | 48,263 |
| 2023-02-02 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 3,390 | 22.57 | 76,525 |
| 2023-02-02 | Yeung William (Chief Legal Officer) | Sale | 2,913 | 22.57 | 65,758 |
| 2023-02-02 | Clemente Rodney (SVP, Water) | Sale | 3,027 | 22.57 | 68,331 |
| 2023-02-01 | Ballard Joshua (Chief Financial Officer) | Sale | 15,000 | 21.88 | 328,215 |
| 2023-02-01 | Ballard Joshua (Chief Financial Officer) | Option Ex | 15,000 | 7.60 | 114,000 |
| 2023-02-01 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 860 | 21.79 | 18,739 |
| 2023-02-01 | Yeung William (Chief Legal Officer) | Sale | 794 | 21.79 | 17,301 |
| 2023-02-01 | Clemente Rodney (SVP, Water) | Sale | 804 | 21.79 | 17,519 |
| 2022-11-16 | Hanstveit Arve | Sale | 17,236 | 20.93 | 360,801 |
| 2022-11-16 | Hanstveit Arve | Option Ex | 17,236 | 5.43 | 93,591 |
| 2022-09-14 | Foda Sherif | Sale | 15,879 | 25.50 | 404,914 |
| 2022-09-14 | Foda Sherif | Option Ex | 15,879 | 8.48 | 134,733 |
| 2022-08-10 | Mao Robert Yu Lang (President and CEO) | Option Ex | 15,236 | 5.43 | 82,731 |
| 2022-08-09 | Mao Robert Yu Lang (President and CEO) | Sale | 2,000 | 22.46 | 44,926 |
| 2022-08-09 | Mao Robert Yu Lang (President and CEO) | Option Ex | 2,000 | 5.43 | 10,860 |
| 2022-08-08 | Pollina Lisa A | Sale | 2,700 | 23.08 | 62,315 |
| 2022-06-15 | Yeung William (Chief Legal Officer) | Sale | 2,500 | 19.07 | 47,675 |
| 2022-06-03 | Buehler Alexander J | Sale | 50,000 | 21.34 | 1,067,250 |
| 2022-06-03 | Buehler Alexander J | Option Ex | 50,000 | 3.23 | 161,250 |
| 2021-11-24 | Foda Sherif | Sale | 20,000 | 22.46 | 449,260 |
| 2021-11-24 | Foda Sherif | Option Ex | 20,000 | 8.81 | 176,200 |
| 2021-11-22 | Hanstveit Arve | Sale | 25,000 | 24.61 | 615,350 |
| 2021-09-15 | Lorentzen Ole Peter | Sale | 1,500,000 | 20.81 | 31,214,999 |
| 2021-09-13 | Foda Sherif | Sale | 5,595 | 21.59 | 120,824 |
| 2021-09-13 | Foda Sherif | Option Ex | 5,595 | 9.98 | 55,838 |
| 2021-07-02 | Lorentzen Ole Peter | Sale | 23,664 | 21.75 | 514,715 |
| 2021-07-01 | Lorentzen Ole Peter | Sale | 161,431 | 22.66 | 3,658,833 |
| 2021-05-06 | Arvarius As | Sale | 1,000,000 | 19.50 | 19,500,000 |
| 2021-05-03 | Clemente Rodney (SVP, Water) | Sale | 4,814 | 21.11 | 101,642 |
| 2021-05-03 | Clemente Rodney (SVP, Water) | Option Ex | 4,814 | 21.11 | 101,642 |
| 2021-04-27 | Hanstveit Arve (Director) | Sale | 1,200 | 22.00 | 26,400 |
| 2021-04-26 | Hanstveit Arve (Director) | Sale | 9,426 | 22.00 | 207,381 |
| 2021-03-12 | Hanstveit Arve (Director) | Sale | 25,000 | 17.00 | 425,050 |
| 2021-03-02 | Clemente Rodney (SVP, Water) | Sale | 912 | 18.33 | 16,716 |
| 2021-03-02 | Clemente Rodney (SVP, Water) | Option Ex | 912 | 18.33 | 16,716 |
| 2021-03-01 | Clemente Rodney (SVP, Water) | Sale | 28,282 | 18.20 | 514,647 |
| 2021-03-01 | Clemente Rodney (SVP, Water) | Option Ex | 28,282 | 18.20 | 514,647 |
| 2021-02-24 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 16,772 | 17.00 | 285,124 |
| 2021-02-24 | Ghasripoor Farshad (Chief Technology Officer) | Option Ex | 16,772 | 17.00 | 285,124 |
| 2021-02-24 | Clemente Rodney (SVP, Water) | Sale | 1,731 | 16.52 | 28,596 |
| 2021-02-24 | Clemente Rodney (SVP, Water) | Option Ex | 1,731 | 16.52 | 28,596 |
| 2021-02-24 | Hanstveit Arve (Director) | Sale | 25,000 | 17.00 | 425,050 |
| 2021-02-23 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 34,247 | 16.00 | 547,952 |
| 2021-02-23 | Ghasripoor Farshad (Chief Technology Officer) | Option Ex | 34,247 | 16.00 | 547,952 |
| 2021-02-23 | Clemente Rodney (SVP, Water) | Sale | 63,999 | 15.93 | 1,019,376 |
| 2021-02-23 | Clemente Rodney (SVP, Water) | Option Ex | 63,999 | 15.93 | 1,019,376 |
| 2021-02-16 | Clemente Rodney (SVP, Water) | Sale | 200 | 15.50 | 3,100 |
| 2021-02-16 | Clemente Rodney (SVP, Water) | Option Ex | 200 | 7.50 | 1,500 |
| 2021-02-12 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 35,424 | 15.00 | 531,360 |
| 2021-02-12 | Ghasripoor Farshad (Chief Technology Officer) | Option Ex | 35,424 | 6.50 | 230,256 |
| 2021-02-10 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 10,107 | 15.00 | 151,605 |
| 2021-02-10 | Ghasripoor Farshad (Chief Technology Officer) | Option Ex | 10,107 | 4.96 | 50,130 |
| 2021-02-04 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 2,415 | 13.88 | 33,520 |
| 2021-02-04 | Clemente Rodney (SVP, Water) | Sale | 2,352 | 13.89 | 32,659 |
| 2021-02-03 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 9,121 | 13.88 | 126,590 |
| 2021-02-03 | Clemente Rodney (SVP, Water) | Sale | 9,748 | 13.88 | 135,292 |
| 2021-01-14 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 4,682 | 14.65 | 68,577 |
| 2021-01-14 | Ghasripoor Farshad (Chief Technology Officer) | Option Ex | 4,682 | 2.75 | 12,875 |
| 2021-01-14 | Clemente Rodney (SVP, Water) | Sale | 4,553 | 14.64 | 66,665 |
| 2021-01-14 | Clemente Rodney (SVP, Water) | Option Ex | 4,553 | 6.00 | 27,318 |
| 2021-01-13 | Ghasripoor Farshad (Chief Technology Officer) | Sale | 43,776 | 14.30 | 626,215 |
| 2021-01-13 | Ghasripoor Farshad (Chief Technology Officer) | Option Ex | 35,038 | 2.75 | 96,354 |
| 2021-01-13 | Clemente Rodney (SVP, Water) | Sale | 37,447 | 14.30 | 535,641 |
| 2021-01-13 | Clemente Rodney (SVP, Water) | Option Ex | 37,447 | 6.00 | 224,682 |
| 2021-01-04 | Hanstveit Arve (Director) | Sale | 25,000 | 14.29 | 357,300 |
| 2020-12-11 | Mao Robert Yu Lang (President and CEO) | Sale | 9,500 | 12.22 | 116,080 |
| 2020-12-11 | Mao Robert Yu Lang (President and CEO) | Option Ex | 45,708 | 2.49 | 113,812 |
| 2020-12-09 | Foda Sherif (Director) | Sale | 16,726 | 11.90 | 199,056 |
Insider trading activities including stock purchases, stock sales, and option exercises of ERII listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Energy Recovery, Inc. (symbol ERII, CIK number 1421517) see the Securities and Exchange Commission (SEC) website.