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Energy Recovery, Inc.

ERII Net selling
CIK 0001421517 #3294 in the set updated 18 Sep 2026
Bought (120 mo)
$1.46M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$111.96M
$1.73M on a plan · $26.55M straight out of an exercise
Sold at will
$83.68M
108 of 225 sales
Net
−$110.50M
−$82.22M against sales at will

By person

30 insiders · 252 transactions
3.7×

David W. Moon holds only 3.7 times base salary in stock. $2.31M of shares against $614.23K in salary for 2025.

Salary from the company's own proxy. The shares are what David W. Moon last reported holding, valued at $8.56, the price Common Stock was last bought or sold at on the open market here, on 28 Jul 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Lorentzen Ole Peter
10% owner
—
$47.98M (5)
−$47.98M
28,641,146
56.11%
$245.17M
−10.4%
Arvarius AS
10% owner
—
$19.50M (1)
−$19.50M
0
0.0000%
$0.00
−100.0%
Hanstveit Arve
Director
—
$13.73M (39)
−$13.73M
520,603
1.02%
$4.46M
−58.9%
Mao Robert Yu Lang
Director
$150.62K (1)
$6.74M (10) scheduled
−$6.59M
423,462
0.8296%
$3.62M
+111.0%
Clemente Rodney
SVP, Water
—
$5.94M (54) scheduled
−$5.94M
108,301
0.2122%
$927.06K
+594.5%
Michelet Hans Peter
Director
—
$4.28M (12) scheduled
−$4.28M
0
0.0000%
$0.00
−100.0%
Ghasripoor Farshad
Chief Technology Officer
—
$4.26M (27) scheduled
−$4.26M
123,090
0.2411%
$1.05M
+307.4%
Yeung William
Chief Legal Officer
$73.16K (2)
$2.68M (26)
−$2.61M
120,995
0.2370%
$1.04M
+649.8%
BUEHLER ALEXANDER J
Interim President and CEO
—
$1.71M (3) scheduled
−$1.71M
66,755
0.1308%
$571.42K
+11.3%
Bensalah Nocair
VP Operations
—
$1.47M (9) scheduled
−$1.47M
58,867
0.1153%
$503.90K
+197.6%
Foda Sherif
Director
—
$1.17M (4) scheduled
−$1.17M
9,619
0.0188%
$82.34K
—
Ballard Joshua
Chief Financial Officer
—
$799.58K (10) scheduled
−$799.58K
40,376
0.0791%
$345.62K
+5,668%
Siebert Eric
VP, Oil and Gas
—
$792.79K (7) scheduled
−$792.79K
72,004
0.1411%
$616.35K
+111.1%
Moon David W
President and CEO
$561.20K (5)
$61.40K (2)
+$499.81K
270,019
0.5290%
$2.31M
—
Smith Emily
SVP, Corp Dev and Ops
—
$397.05K (8)
−$397.05K
51,264
0.1004%
$438.82K
+224.0%
TONDREAU PAMELA L.
Director
$367.95K (3)
—
+$367.95K
98,206
0.1924%
$840.64K
—
SMITH LENOX SHARON E
Corporate Controller and CAO
—
$247.09K (3) scheduled
−$247.09K
11,581
0.0227%
$99.13K
+95.2%
Sabol Colin R
Director
$153.02K (3)
—
+$153.02K
58,671
0.1149%
$502.22K
—
FJELL OLAV
Director
$127.42K (1)
—
+$127.42K
22,812
0.0447%
$195.27K
—
POLLINA LISA A
Director
—
$112.11K (3)
−$112.11K
4,007
0.0078%
$34.30K
—
STROUD ANDREW B JR
VP, Human Resources
—
$78.29K (1) scheduled
−$78.29K
32,666
0.0640%
$279.62K
+129.4%
Chow Joan Kai
Director
$26.69K (1)
—
+$26.69K
53,616
0.1050%
$458.95K
—
Ramanan Natarajan
Chief Technology Officer
—
$2.88K (1)
−$2.88K
52,565
0.1030%
$449.96K
—
Gay Joel
President and CEO
—
—
—
95,051
0.1862%
$813.64K
+100.2%
Gannon Chris M
Chief Executive Officer
—
—
—
77,859
0.1525%
$666.47K
+140.0%
Mancini Michael S.
Chief Financial Officer
—
—
—
75,051
0.1470%
$642.44K
—
Hostetler Matthew
Chief Human Resources Officer
—
—
—
46,556
0.0912%
$398.52K
+94.3%
Ryan Aidan
Interim CFO
—
—
—
34,133
0.0669%
$292.18K
+118.6%
Mitchell John Joseph
Director
—
—
—
16,797
0.0329%
$143.78K
—
Proctor Stacy Lea
VP, Human Resources
—
—
—
11,753
0.0230%
$100.61K
—

Individual transactions

104
Insider
Date
Role
Action
Shares
Price
Amount
BUEHLER ALEXANDER J
15 Jun 2026
Interim President and CEO
Sold after exercise
14,900
$8.71
$129.78K
Yeung William
24 Oct 2025
Chief Legal Officer
Sold after exercise
3,530
$18.00
$63.54K
Yeung William
24 Oct 2025
Chief Legal Officer
Sold after exercise
5,638
$18.00
$101.48K
Yeung William
23 Oct 2025
Chief Legal Officer
Sold after exercise
3,530
$17.50
$61.78K
Yeung William
20 Oct 2025
Chief Legal Officer
Sold after exercise
3,530
$17.00
$60.01K
Yeung William
16 Oct 2025
Chief Legal Officer
Sold after exercise
3,530
$16.50
$58.25K
Yeung William
3 Oct 2025
Chief Legal Officer
Sold after exercise
2,529
$16.00
$40.46K
Yeung William
3 Oct 2025
Chief Legal Officer
Sold after exercise
1,038
$16.00
$16.61K
Yeung William
18 Sep 2025
Chief Legal Officer
Sold after exercise
15,454
$15.09
$233.14K
Yeung William
11 Sep 2025
Chief Legal Officer
Sold after exercise
33,554
$14.51
$486.87K
Mao Robert Yu Lang
22 May 2024
Director
Sold after exercise
21,045
$13.86
$291.66K
Mao Robert Yu Lang
4 Mar 2024
Director
Sold after exercise
15,270
$15.74
$240.37K
Mao Robert Yu Lang
4 Mar 2024
Director
Sold after exercise
20,509
$15.74
$322.88K
Mao Robert Yu Lang
1 Mar 2024
Director
Sold after exercise
32,883
$16.21
$532.90K
Mao Robert Yu Lang
1 Mar 2024
Director
Sold after exercise
5,142
$16.22
$83.40K
Mao Robert Yu Lang
29 Feb 2024
Director
Sold after exercise
39,314
$15.58
$612.51K
Ballard Joshua
3 Jan 2024
Chief Financial Officer
Sold after exercise
6,250
$18.59
$116.19K
Ballard Joshua
2 Jan 2024
Chief Financial Officer
Sold after exercise
6,250
$18.50
$115.63K
Mao Robert Yu Lang
7 Nov 2023
Director
Sold after exercise
121,383
$18.02
$2.19M
Mao Robert Yu Lang
6 Nov 2023
Director
Sold after exercise
130,000
$17.76
$2.31M
Ghasripoor Farshad
29 Aug 2023
Chief Technology Officer
Sold after exercise
51,131
$27.92
$1.43M
Clemente Rodney
25 Aug 2023
SVP, Water
Sold after exercise
31,373
$27.03
$848.11K
Hanstveit Arve
1 Jun 2023
Director
Sold after exercise
15,327
$23.73
$363.70K
Ballard Joshua
1 Feb 2023
Chief Financial Officer
Sold after exercise
15,000
$21.88
$328.21K
Hanstveit Arve
16 Nov 2022
Director
Sold after exercise
17,236
$20.93
$360.81K
Foda Sherif
14 Sep 2022
Director
Sold after exercise
15,879
$25.50
$404.91K
Mao Robert Yu Lang
9 Aug 2022
President and CEO
Sold after exercise
2,000
$22.46
$44.93K
BUEHLER ALEXANDER J
3 Jun 2022
Director
Sold after exercise
50,000
$21.34
$1.07M
Foda Sherif
24 Nov 2021
Director
Sold after exercise
20,000
$22.46
$449.26K
Foda Sherif
13 Sep 2021
Director
Sold after exercise
5,595
$21.59
$120.82K
Clemente Rodney
3 May 2021
SVP, Water
Sold after exercise
1,831
$21.11
$38.66K
Clemente Rodney
3 May 2021
SVP, Water
Sold after exercise
2,983
$21.11
$62.98K
Clemente Rodney
2 Mar 2021
SVP, Water
Sold after exercise
912
$18.33
$16.72K
Clemente Rodney
1 Mar 2021
SVP, Water
Sold after exercise
7,327
$18.21
$133.43K
Clemente Rodney
1 Mar 2021
SVP, Water
Sold after exercise
10,998
$18.19
$200.05K
Clemente Rodney
1 Mar 2021
SVP, Water
Sold after exercise
9,957
$18.19
$181.12K
Ghasripoor Farshad
24 Feb 2021
Chief Technology Officer
Sold after exercise
9,383
$17.00
$159.51K
Ghasripoor Farshad
24 Feb 2021
Chief Technology Officer
Sold after exercise
7,389
$17.00
$125.61K
Clemente Rodney
24 Feb 2021
SVP, Water
Sold after exercise
1,731
$16.52
$28.60K
Ghasripoor Farshad
23 Feb 2021
Chief Technology Officer
Sold after exercise
14,791
$16.00
$236.66K
Ghasripoor Farshad
23 Feb 2021
Chief Technology Officer
Sold after exercise
11,456
$16.00
$183.30K
Ghasripoor Farshad
23 Feb 2021
Chief Technology Officer
Sold after exercise
8,000
$16.00
$128.00K
Clemente Rodney
23 Feb 2021
SVP, Water
Sold after exercise
17,154
$15.60
$267.60K
Clemente Rodney
23 Feb 2021
SVP, Water
Sold after exercise
4,042
$15.50
$62.65K
Clemente Rodney
23 Feb 2021
SVP, Water
Sold after exercise
18,287
$15.50
$283.45K
Clemente Rodney
23 Feb 2021
SVP, Water
Sold after exercise
9,998
$16.52
$165.17K
Clemente Rodney
23 Feb 2021
SVP, Water
Sold after exercise
14,518
$16.52
$239.84K
Clemente Rodney
16 Feb 2021
SVP, Water
Sold after exercise
200
$15.50
$3.10K
Ghasripoor Farshad
12 Feb 2021
Chief Technology Officer
Sold after exercise
8,476
$15.00
$127.14K
Ghasripoor Farshad
12 Feb 2021
Chief Technology Officer
Sold after exercise
11,510
$15.00
$172.65K
Ghasripoor Farshad
12 Feb 2021
Chief Technology Officer
Sold after exercise
15,438
$15.00
$231.57K
Ghasripoor Farshad
10 Feb 2021
Chief Technology Officer
Sold after exercise
4,719
$15.00
$70.79K
Ghasripoor Farshad
10 Feb 2021
Chief Technology Officer
Sold after exercise
5,388
$15.00
$80.82K
Ghasripoor Farshad
14 Jan 2021
Chief Technology Officer
Sold after exercise
4,682
$14.65
$68.58K
Clemente Rodney
14 Jan 2021
SVP, Water
Sold after exercise
4,553
$14.64
$66.67K
Ghasripoor Farshad
13 Jan 2021
Chief Technology Officer
Sold after exercise
8,738
$14.31
$125.00K
Ghasripoor Farshad
13 Jan 2021
Chief Technology Officer
Sold after exercise
15,818
$14.31
$226.28K
Ghasripoor Farshad
13 Jan 2021
Chief Technology Officer
Sold after exercise
19,220
$14.31
$274.95K
Clemente Rodney
13 Jan 2021
SVP, Water
Sold after exercise
8,350
$14.30
$119.44K
Clemente Rodney
13 Jan 2021
SVP, Water
Sold after exercise
29,097
$14.30
$416.19K
Mao Robert Yu Lang
11 Dec 2020
President and CEO
Sold after exercise
9,500
$12.22
$116.08K
Foda Sherif
9 Dec 2020
Director
Sold after exercise
16,726
$11.90
$199.06K
Hanstveit Arve
12 Mar 2020
Director
Sold after exercise
14,820
$7.22
$107.02K
Hanstveit Arve
11 Mar 2020
Director
Sold after exercise
14,818
$8.69
$128.70K
Hanstveit Arve
10 Mar 2020
Director
Sold after exercise
14,818
$8.61
$127.62K
Bensalah Nocair
21 Feb 2020
VP Operations
Sold after exercise
1,799
$11.02
$19.82K
Siebert Eric
21 Feb 2020
VP, Oil and Gas
Sold after exercise
1,900
$11.02
$20.94K
Bensalah Nocair
20 Feb 2020
VP Operations
Sold after exercise
16,042
$11.01
$176.69K
Bensalah Nocair
20 Feb 2020
VP Operations
Sold after exercise
1,124
$11.01
$12.38K
Siebert Eric
20 Feb 2020
VP, Oil and Gas
Sold after exercise
17,298
$11.01
$190.49K
Bensalah Nocair
19 Feb 2020
VP Operations
Sold after exercise
1,604
$11.00
$17.64K
Siebert Eric
19 Feb 2020
VP, Oil and Gas
Sold after exercise
1,100
$11.00
$12.10K
Siebert Eric
5 Feb 2020
VP, Oil and Gas
Sold after exercise
11,446
$10.53
$120.58K
Siebert Eric
17 Jan 2020
VP, Oil and Gas
Sold after exercise
2,200
$10.54
$23.20K
Siebert Eric
16 Jan 2020
VP, Oil and Gas
Sold after exercise
11,354
$10.51
$119.28K
Hanstveit Arve
3 Dec 2019
Director
Sold after exercise
39,787
$8.61
$342.67K
Hanstveit Arve
12 Nov 2019
Director
Sold after exercise
13,605
$9.22
$125.45K
Clemente Rodney
16 Jul 2019
VP, Water
Sold after exercise
36,946
$11.92
$440.40K
Smith Emily
16 Jul 2019
VP, Corporate Development
Sold after exercise
5,000
$12.00
$60.00K
Michelet Hans Peter
10 Jun 2019
Director
Sold after exercise
10,000
$10.06
$100.62K
Michelet Hans Peter
7 Jun 2019
Director
Sold after exercise
20,000
$9.92
$198.32K
Michelet Hans Peter
6 Jun 2019
Director
Sold after exercise
15,000
$9.90
$148.50K
Michelet Hans Peter
22 May 2019
Director
Sold after exercise
21,558
$10.21
$220.19K
Michelet Hans Peter
21 May 2019
Director
Sold after exercise
35,302
$10.36
$365.81K
Michelet Hans Peter
20 May 2019
Director
Sold after exercise
28,126
$10.45
$293.87K
Michelet Hans Peter
17 May 2019
Director
Sold after exercise
40,769
$10.49
$427.81K
Michelet Hans Peter
16 May 2019
Director
Sold after exercise
39,880
$10.85
$432.87K
Michelet Hans Peter
15 May 2019
Director
Sold after exercise
18,365
$11.00
$202.03K
Bensalah Nocair
6 May 2019
VP Operations
Sold after exercise
32,969
$11.00
$362.66K
Clemente Rodney
9 Apr 2019
VP, Water
Sold after exercise
292
$9.19
$2.68K
SMITH LENOX SHARON E
3 Apr 2019
Corporate Controller and CAO
Sold after exercise
12,500
$9.01
$112.59K
SMITH LENOX SHARON E
14 Mar 2019
Corporate Controller and CAO
Sold after exercise
12,500
$9.00
$112.50K
Clemente Rodney
14 Mar 2019
VP, Water
Sold after exercise
53,036
$8.85
$469.43K
Hanstveit Arve
13 Mar 2019
Director
Sold after exercise
100,000
$8.59
$858.73K
Hanstveit Arve
12 Mar 2019
Director
Sold after exercise
39,042
$8.28
$323.34K
Smith Emily
15 Feb 2019
VP, Corporate Development
Sold after exercise
10,000
$8.00
$80.04K
Hanstveit Arve
8 Nov 2018
Director
Sold after exercise
27,563
$9.15
$252.10K
Hanstveit Arve
7 Nov 2018
Director
Sold after exercise
18,145
$9.16
$166.15K
Bensalah Nocair
3 Oct 2018
VP of Operations
Sold after exercise
884
$8.79
$7.77K
Bensalah Nocair
2 Oct 2018
VP of Operations
Sold after exercise
45,956
$8.79
$403.96K
Bensalah Nocair
1 Oct 2018
VP of Operations
Sold after exercise
31,404
$8.77
$275.43K
Michelet Hans Peter
19 Jun 2018
Director
Sold after exercise
36,152
$8.12
$293.58K
SMITH LENOX SHARON E
13 Dec 2017
Corp. Controller & CAO
Sold after exercise
2,000
$11.00
$22.00K
STROUD ANDREW B JR
30 Nov 2017
VP, Human Resources
Sold after exercise
7,117
$11.00
$78.29K
Showing 250 of 252 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 357
Amendments (4/A) skipped 26
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 13
Sales straight out of an exercise 104
Sales at will 108
Transactions with no price 0
Shares from compensation/vesting 11,231,861
Sales filed before the plan box existed 62
History held since 8 Sep 2016