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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

108
Insider
Date
Role
Action
Shares
Price
Amount
Yeung William
28 Jul 2026
Chief Legal Officer
Sell
2,048
$8.56
$17.53K
Clemente Rodney
28 Jul 2026
SVP, Water
Sell
5,387
$8.56
$46.11K
Hanstveit Arve
6 Apr 2026
Director
Sell
2,419
$10.29
$24.89K
Hanstveit Arve
2 Apr 2026
Director
Sell
165,292
$10.14
$1.68M
Hanstveit Arve
10 Mar 2026
Director
Sell
25,000
$10.96
$273.98K
Hanstveit Arve
6 Mar 2026
Director
Sell
11,582
$10.62
$122.94K
Ramanan Natarajan
5 Mar 2026
Chief Technology Officer
Sell
272
$10.57
$2.88K
Hanstveit Arve
5 Mar 2026
Director
Sell
38,418
$10.71
$411.46K
Hanstveit Arve
5 Dec 2025
Director
Sell
15,000
$14.71
$220.61K
Hanstveit Arve
4 Dec 2025
Director
Sell
15,000
$14.97
$224.51K
Hanstveit Arve
12 Jun 2025
Director
Sell
30,000
$12.68
$380.40K
Hanstveit Arve
11 Jun 2025
Director
Sell
20,000
$12.75
$255.00K
Hanstveit Arve
11 Mar 2025
Director
Sell
50,000
$16.34
$816.95K
Hanstveit Arve
11 Dec 2024
Director
Sell
20,000
$16.87
$337.40K
Moon David W
28 Oct 2024
President and CEO
Sell
2,550
$17.97
$45.83K
Clemente Rodney
28 Oct 2024
SVP, Water
Sell
6,505
$17.98
$116.95K
Ghasripoor Farshad
28 Oct 2024
Chief Technology Officer
Sell
10,526
$17.97
$189.12K
Yeung William
29 Jul 2024
Chief Legal Officer
Sell
2,012
$14.63
$29.43K
Clemente Rodney
29 Jul 2024
SVP, Water
Sell
2,353
$14.63
$34.42K
Ghasripoor Farshad
29 Jul 2024
Chief Technology Officer
Sell
4,079
$14.63
$59.67K
Moon David W
18 Jun 2024
President and CEO
Sell
1,219
$12.77
$15.57K
Hanstveit Arve
7 Jun 2024
Director
Sell
20,000
$13.20
$263.95K
Ballard Joshua
28 May 2024
Chief Financial Officer
Sell
4,051
$13.54
$54.87K
Hanstveit Arve
8 May 2024
Director
Sell
35,000
$13.53
$473.55K
Yeung William
11 Mar 2024
Chief Legal Officer
Sell
978
$14.98
$14.65K
Clemente Rodney
11 Mar 2024
SVP, Water
Sell
825
$14.98
$12.36K
Ballard Joshua
11 Mar 2024
Chief Financial Officer
Sell
979
$14.98
$14.67K
Hanstveit Arve
28 Feb 2024
Director
Sell
50,000
$15.49
$774.60K
Ghasripoor Farshad
5 Feb 2024
Chief Technology Officer
Sell
1,118
$14.89
$16.65K
Clemente Rodney
5 Feb 2024
SVP, Water
Sell
975
$14.89
$14.52K
Yeung William
5 Feb 2024
Chief Legal Officer
Sell
1,013
$14.89
$15.08K
Clemente Rodney
2 Feb 2024
SVP, Water
Sell
1,538
$15.30
$23.53K
Ghasripoor Farshad
2 Feb 2024
Chief Technology Officer
Sell
1,654
$15.30
$25.31K
Yeung William
2 Feb 2024
Chief Legal Officer
Sell
1,400
$15.30
$21.42K
Ballard Joshua
1 Feb 2024
Chief Financial Officer
Sell
746
$15.64
$11.67K
Clemente Rodney
1 Feb 2024
SVP, Water
Sell
739
$15.64
$11.56K
Ghasripoor Farshad
1 Feb 2024
Chief Technology Officer
Sell
795
$15.64
$12.43K
Yeung William
1 Feb 2024
Chief Legal Officer
Sell
733
$15.64
$11.46K
Ghasripoor Farshad
30 Jan 2024
Chief Technology Officer
Sell
891
$15.91
$14.18K
Yeung William
30 Jan 2024
Chief Legal Officer
Sell
823
$15.91
$13.10K
Clemente Rodney
30 Jan 2024
SVP, Water
Sell
830
$15.91
$13.21K
Ballard Joshua
12 Sep 2023
Chief Financial Officer
Sell indirect
700
$24.03
$16.82K
Yeung William
28 Aug 2023
Chief Legal Officer
Sell
40,614
$27.75
$1.13M
Hanstveit Arve
20 Jun 2023
Director
Sell
15,000
$27.50
$412.50K
POLLINA LISA A
12 Jun 2023
Director
Sell
800
$27.04
$21.64K
POLLINA LISA A
9 Jun 2023
Director
Sell
1,043
$27.00
$28.16K
Ballard Joshua
9 Mar 2023
Chief Financial Officer
Sell
883
$23.99
$21.19K
Clemente Rodney
9 Mar 2023
SVP, Water
Sell
768
$23.99
$18.43K
Yeung William
9 Mar 2023
Chief Legal Officer
Sell
882
$23.99
$21.16K
Clemente Rodney
3 Feb 2023
SVP, Water
Sell
925
$22.75
$21.05K
Ghasripoor Farshad
3 Feb 2023
Chief Technology Officer
Sell
987
$22.75
$22.46K
Yeung William
3 Feb 2023
Chief Legal Officer
Sell
836
$22.75
$19.02K
Ballard Joshua
3 Feb 2023
Chief Financial Officer
Sell
3,208
$22.47
$72.08K
Ghasripoor Farshad
2 Feb 2023
Chief Technology Officer
Sell
3,390
$22.57
$76.53K
Ballard Joshua
2 Feb 2023
Chief Financial Officer
Sell
2,138
$22.57
$48.26K
Yeung William
2 Feb 2023
Chief Legal Officer
Sell
2,913
$22.57
$65.76K
Clemente Rodney
2 Feb 2023
SVP, Water
Sell
3,027
$22.57
$68.33K
Ghasripoor Farshad
1 Feb 2023
Chief Technology Officer
Sell
860
$21.79
$18.74K
Yeung William
1 Feb 2023
Chief Legal Officer
Sell
794
$21.79
$17.30K
Clemente Rodney
1 Feb 2023
SVP, Water
Sell
804
$21.79
$17.52K
POLLINA LISA A
8 Aug 2022
Director
Sell
2,700
$23.08
$62.32K
Yeung William
15 Jun 2022
Chief Legal Officer
Sell indirect
2,500
$19.07
$47.68K
Hanstveit Arve
22 Nov 2021
Director
Sell
25,000
$24.61
$615.35K
Lorentzen Ole Peter
15 Sep 2021
10% owner
Sell indirect
1,500,000
$20.81
$31.22M
Lorentzen Ole Peter
2 Jul 2021
10% owner
Sell indirect
23,664
$21.75
$514.70K
Lorentzen Ole Peter
1 Jul 2021
10% owner
Sell indirect
161,431
$22.67
$3.66M
Arvarius AS
6 May 2021
10% owner
Sell
1,000,000
$19.50
$19.50M
Hanstveit Arve
29 Apr 2021
Director
Sell
14,374
$22.16
$318.47K
Hanstveit Arve
27 Apr 2021
Director
Sell
1,200
$22.00
$26.40K
Hanstveit Arve
26 Apr 2021
Director
Sell
9,426
$22.00
$207.38K
Hanstveit Arve
12 Mar 2021
Director
Sell
25,000
$17.00
$425.05K
Hanstveit Arve
24 Feb 2021
Director
Sell
25,000
$17.00
$425.04K
Ghasripoor Farshad
4 Feb 2021
Chief Technology Officer
Sell
2,415
$13.88
$33.52K
Clemente Rodney
4 Feb 2021
SVP, Water
Sell
2,352
$13.89
$32.66K
Ghasripoor Farshad
3 Feb 2021
Chief Technology Officer
Sell
9,121
$13.88
$126.59K
Clemente Rodney
3 Feb 2021
SVP, Water
Sell
9,748
$13.88
$135.29K
Hanstveit Arve
4 Jan 2021
Director
Sell
25,000
$14.29
$357.30K
BUEHLER ALEXANDER J
11 Nov 2020
Director
Sell
50,000
$10.28
$514.09K
Hanstveit Arve
28 May 2020
Director
Sell
50,000
$8.03
$401.61K
Clemente Rodney
22 May 2020
SVP, Water
Sell
463
$7.76
$3.59K
Lorentzen Ole Peter
12 May 2020
Director
Sell indirect
1,500,000
$7.52
$11.28M
Hanstveit Arve
24 Mar 2020
Director
Sell
14,000
$7.12
$99.62K
Hanstveit Arve
24 Mar 2020
Director
Sell
9,000
$7.04
$63.34K
Hanstveit Arve
20 Mar 2020
Director
Sell
23,067
$7.11
$163.92K
Smith Emily
10 Mar 2020
SVP, Corp Dev and Ops
Sell
829
$8.86
$7.34K
Smith Emily
21 Feb 2020
SVP, Corp Dev and Ops
Sell
180
$11.00
$1.98K
Smith Emily
20 Feb 2020
SVP, Corp Dev and Ops
Sell
7,683
$11.02
$84.65K
Smith Emily
5 Feb 2020
SVP, Corp Dev and Ops
Sell
4,684
$10.55
$49.40K
Clemente Rodney
5 Feb 2020
SVP, Water
Sell
5,123
$10.54
$54.01K
Smith Emily
4 Feb 2020
SVP, Corp Dev and Ops
Sell
2,675
$10.41
$27.85K
Clemente Rodney
4 Feb 2020
SVP, Water
Sell
3,479
$10.41
$36.23K
Clemente Rodney
9 Jan 2020
VP, Water
Sell
212
$9.80
$2.08K
Ghasripoor Farshad
9 Jan 2020
VP, Chief Technology Officer
Sell
2,869
$10.00
$28.69K
Lorentzen Ole Peter
12 Dec 2019
Director
Sell indirect
150,000
$8.73
$1.31M
Clemente Rodney
9 Dec 2019
VP, Water
Sell
230
$8.75
$2.01K
Clemente Rodney
11 Nov 2019
VP, Water
Sell
230
$9.39
$2.16K
Clemente Rodney
9 Oct 2019
VP, Water
Sell
229
$8.99
$2.06K
Clemente Rodney
10 Sep 2019
VP, Water
Sell
230
$9.96
$2.29K
Clemente Rodney
9 Aug 2019
VP, Water
Sell
230
$9.96
$2.29K
Clemente Rodney
9 Jul 2019
VP, Water
Sell
229
$10.31
$2.36K
Clemente Rodney
12 Jun 2019
VP, Water
Sell
230
$9.82
$2.26K
Smith Emily
15 May 2019
VP, Corporate Development
Sell
7,868
$10.90
$85.80K
Siebert Eric
14 May 2019
VP, Oil and Gas
Sell
29,173
$10.50
$306.21K
Bensalah Nocair
14 May 2019
VP Operations
Sell
18,322
$10.49
$192.15K
Clemente Rodney
9 May 2019
VP, Water
Sell
230
$10.47
$2.41K
Hanstveit Arve
12 Mar 2018
Director
Sell
50,000
$8.57
$428.30K
Michelet Hans Peter
22 Dec 2017
Director
Sell
50,000
$8.91
$445.42K
Michelet Hans Peter
18 Nov 2016
Director
Sell
100,000
$11.49
$1.15M
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