Insider Trading activities of Energy Recovery, Inc. insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Energy Recovery, Inc. since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Energy Recovery, Inc. since year 2005. Table 2 shows the detailed insider transactions of Energy Recovery, Inc. since 2005. The reporting company's ticker symbol is ERII. The reporting company's CIK number is 1421517.
The total value of stock buying since 2005 is $14,542,969.
The total value of stock sales since 2005 is $64,717,355.
The total value of stock option exercises since 2005 is $632,401.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Energy Recovery, Inc. (ERII).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2017-09 18,000 $127,422 0 $0 0 $0
2017-03 23,298 $175,605 0 $0 0 $0
2016-11 4,770 $48,177 100,000 $1,149,200 0 $0
2016-09 0 $0 0 $0 31,382 $111,284
2016-08 0 $0 30,000 $391,299 19,760 $54,340
2016-06 6,350 $69,596 150,000 $1,370,250 0 $0
2016-05 21,389 $203,430 2,700 $29,997 25,000 $86,250
2016-04 0 $0 50,000 $629,300 0 $0
2016-03 40,000 $378,160 140,000 $1,314,649 0 $0
2015-12 6,715 $47,273 0 $0 0 $0
2015-11 6,306 $47,522 184,700 $1,319,936 0 $0
2015-03 321,700 $890,597 40,000 $114,560 0 $0
2014-12 0 $0 80,000 $371,440 0 $0
2014-11 356,107 $1,558,141 0 $0 0 $0
2014-09 735,000 $3,215,625 0 $0 0 $0
2014-05 1,111,137 $5,735,745 0 $0 84,750 $380,527
2014-03 0 $0 260,000 $1,464,320 0 $0
2014-02 100,000 $417,400 0 $0 0 $0
2013-12 0 $0 20,300 $101,662 0 $0
2013-11 64,622 $299,898 0 $0 0 $0
2013-08 80,800 $414,573 0 $0 0 $0
2013-05 57,143 $199,943 0 $0 0 $0
2013-01 0 $0 30,000 $102,810 0 $0
2012-12 0 $0 30,000 $94,500 0 $0
2012-07 0 $0 63,730 $154,129 0 $0
2012-03 106,044 $249,501 10,000 $22,320 0 $0
2012-02 0 $0 100,000 $236,834 0 $0
2012-01 0 $0 150,000 $391,890 0 $0
2011-12 2,800 $7,588 0 $0 0 $0
2011-11 17,979 $42,373 0 $0 0 $0
2011-06 0 $0 7,361 $19,668 0 $0
2011-05 0 $0 131,000 $390,664 0 $0
2011-01 0 $0 160,000 $633,419 0 $0
2010-12 0 $0 64,800 $246,758 0 $0
2010-05 0 $0 200,000 $857,123 0 $0
2010-03 0 $0 3,059,153 $18,563,133 0 $0
2010-02 0 $0 45,000 $279,399 0 $0
2010-01 0 $0 69,783 $463,603 0 $0
2009-12 0 $0 127,012 $740,683 0 $0
2009-09 0 $0 29,000 $146,972 0 $0
2009-08 1,800 $9,720 65,000 $457,990 0 $0
2009-06 0 $0 54,000 $418,500 0 $0
2009-05 0 $0 100,870 $803,411 0 $0
2009-04 0 $0 138,200 $1,079,499 0 $0
2009-03 0 $0 165,000 $1,095,049 0 $0
2008-09 11,000 $79,980 0 $0 0 $0
2008-07 38,200 $324,700 3,701,757 $29,262,388 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Energy Recovery, Inc. insiders (ERII)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2017-09-14 Fjell Olav (Director) Buy 18,000 7.08 127,422
2017-03-14 Yeung William (General Counsel) Buy 3,298 7.58 24,985
2017-03-14 Mao Robert Yu Lang (Director) Buy 20,000 7.53 150,620
2016-11-18 Michelet Hans Peter (Director) Sale 100,000 11.49 1,149,200
2016-11-08 Yeung William (General Counsel) Buy 4,770 10.10 48,177
2016-09-21 Stroud Andrew B Jr (VP, Human Resources) Option Ex 23,727 3.80 90,233
2016-09-07 Stroud Andrew B Jr (VP, Human Resources) Option Ex 7,655 2.75 21,051
2016-08-15 Buehler Alexander J (Director) Sale 500 13.01 6,505
2016-08-11 Buehler Alexander J (Director) Sale 24,500 13.05 319,774
2016-08-09 Clemente Rodney (VP, Global Desalination Sales) Option Ex 14,760 2.75 40,590
2016-08-09 Buehler Alexander J (Director) Sale 5,000 13.00 65,020
2016-08-09 Stroud Andrew B Jr (VP, Human Resources) Option Ex 5,000 2.75 13,750
2016-06-15 Michelet Hans Peter (Director) Sale 75,000 8.97 672,600
2016-06-14 Michelet Hans Peter (Director) Sale 75,000 9.30 697,650
2016-06-06 Gannon Chris M (CFO) Buy 6,350 10.96 69,596
2016-05-24 Siebert Eric (VP, Corporate Strategy) Buy 21,389 9.51 203,430
2016-05-17 Stroud Andrew B Jr (VP, Human Resources) Sale 2,700 11.11 29,997
2016-05-11 Mao Robert Yu Lang (Director) Option Ex 25,000 3.45 86,250
2016-04-20 Hanstveit Arve (Director) Sale 50,000 12.59 629,300
2016-03-21 Hanstveit Arve (Director) Sale 27,900 10.11 282,096
2016-03-11 Mao Robert Yu Lang (Director) Buy 40,000 9.45 378,160
2016-03-10 Hanstveit Arve (Director) Sale 22,100 10.01 221,154
2016-03-10 Buehler Alexander J (Director) Sale 30,000 9.79 293,610
2016-03-09 Hanstveit Arve (Director) Sale 10,000 8.90 89,040
2016-03-08 Hanstveit Arve (Director) Sale 50,000 8.57 428,749
2015-12-15 Otero Juan (Gen Counsel,CCO,Corp Secretary) Buy 6,715 7.04 47,273
2015-11-20 Michelet Hans Peter (Director) Sale 69,700 7.00 487,621
2015-11-17 Michelet Hans Peter (Director) Sale 13,647 7.13 97,289
2015-11-17 Hanstveit Arve (Director) Sale 75,000 7.12 533,700
2015-11-16 Michelet Hans Peter (Director) Sale 12,753 7.53 96,030
2015-11-13 Gannon Chris M (CFO) Buy 6,306 7.54 47,522
2015-11-13 Michelet Hans Peter (Director) Sale 2,900 7.65 22,179
2015-11-12 Michelet Hans Peter (Director) Sale 10,700 7.77 83,117
2015-03-12 Hanstveit Arve (Director) Sale 40,000 2.86 114,560
2015-03-12 Lorentzen Ole Peter Buy 200,000 2.74 548,800
2015-03-12 Buehler Alexander J (Director) Buy 15,000 2.87 43,065
2015-03-11 Buehler Alexander J (Director) Buy 75,000 2.81 211,125
2015-03-11 Stroud Andrew B Jr (VP, Human Resources) Buy 1,700 2.83 4,807
2015-03-10 Buehler Alexander J (Director) Buy 30,000 2.76 82,800
2014-12-11 Hanstveit Arve (Director) Sale 80,000 4.64 371,440
2014-11-12 Lorentzen Ole Peter Buy 158,907 4.52 717,624
2014-11-06 Lorentzen Ole Peter Buy 116,700 4.30 501,693
2014-11-05 Lorentzen Ole Peter Buy 80,500 4.21 338,824
2014-09-03 Lorentzen Ole Peter Buy 735,000 4.38 3,215,625
2014-05-30 Trempont Dominique (Director) Buy 7,018 5.15 36,135
2014-05-29 Trempont Dominique (Director) Buy 14,553 5.15 74,918
2014-05-27 Trempont Dominique (Director) Buy 16,045 4.99 80,000
2014-05-23 Trempont Dominique (Director) Buy 1,000 4.84 4,845
2014-05-21 Mao Robert Yu Lang (Director) Buy 2,200 4.58 10,084
2014-05-20 Trempont Dominique (Director) Option Ex 84,750 4.49 380,527
2014-05-20 Mao Robert Yu Lang (Director) Buy 47,800 4.57 218,207
2014-05-14 Trempont Dominique (Director) Buy 6,800 4.38 29,784
2014-05-13 Trempont Dominique (Director) Buy 15,721 4.63 72,772
2014-05-07 Lorentzen Ole Peter Buy 1,000,000 5.21 5,209,000
2014-03-26 Johannessen Fred Olav (Director) Sale 180,000 5.46 983,520
2014-03-11 Hanstveit Arve (Director) Sale 80,000 6.01 480,800
2014-02-18 Lorentzen Ole Peter Buy 100,000 4.17 417,400
2013-12-02 Michelet Hans Peter (Director) Sale 20,300 5.01 101,662
2013-11-13 Trempont Dominique (Director) Buy 10,552 4.85 51,177
2013-11-12 Trempont Dominique (Director) Buy 54,070 4.60 248,721
2013-08-30 Hanstveit Arve (Director) Buy 39,900 5.06 201,893
2013-08-29 Hanstveit Arve (Director) Buy 40,900 5.20 212,680
2013-05-14 Trempont Dominique (Director) Buy 57,143 3.50 199,943
2013-01-02 Michelet Hans Peter (Director) Sale 30,000 3.43 102,810
2012-12-03 Michelet Hans Peter (Director) Sale 30,000 3.15 94,500
2012-07-03 Michelet Hans Peter (Chairman) Sale 10,000 2.42 24,210
2012-07-02 Michelet Hans Peter (Chairman) Sale 53,730 2.42 129,919
2012-03-15 Michelet Hans Peter (Chairman) Sale 10,000 2.23 22,320
2012-03-15 Trempont Dominique (Director) Buy 3,410 2.26 7,706
2012-03-14 Trempont Dominique (Director) Buy 62,294 2.33 145,020
2012-03-13 Trempont Dominique (Director) Buy 40,340 2.40 96,775
2012-02-03 Michelet Hans Peter (Chairman) Sale 19,200 2.41 46,252
2012-02-02 Michelet Hans Peter (Chairman) Sale 20,400 2.34 47,797
2012-02-01 Michelet Hans Peter (Chairman) Sale 60,400 2.36 142,785
2012-01-04 Michelet Hans Peter (Chairman) Sale 89,978 2.59 233,132
2012-01-03 Michelet Hans Peter (Chairman) Sale 60,022 2.65 158,758
2011-12-13 Trempont Dominique (Director) Buy 2,800 2.71 7,588
2011-11-23 Trempont Dominique (Director) Buy 6,597 2.27 14,988
2011-11-22 Trempont Dominique (Director) Buy 11,382 2.41 27,385
2011-06-14 Mao Robert Yu Lang (Director) Sale 7,361 2.67 19,668
2011-05-19 Pique Gonzalo G (Director) Sale 20,000 2.96 59,200
2011-05-18 Pique Gonzalo G (Director) Sale 11,000 2.95 32,450
2011-05-03 Michelet Hans Peter (Executive Chairman) Sale 5,600 2.94 16,475
2011-05-02 Michelet Hans Peter (Executive Chairman) Sale 94,400 2.99 282,539
2011-01-18 Michelet Hans Peter (Executive Chairman) Sale 100,000 3.93 392,700
2011-01-03 Pique Gonzalo G (President, CEO) Sale 60,000 4.01 240,719
2010-12-06 Johannessen Fred Olav (Director) Sale 64,800 3.81 246,758
2010-05-17 Johannessen Fred Olav (Director) Sale 174,400 4.27 744,164
2010-05-14 Johannessen Fred Olav (Director) Sale 23,100 4.40 101,709
2010-05-13 Johannessen Fred Olav (Director) Sale 2,500 4.50 11,250
2010-03-18 Arvarius As Sale 3,000,000 6.06 18,180,000
2010-03-01 Michelet Hans Peter (Executive Chairman) Sale 59,153 6.48 383,133
2010-02-19 Johannessen Fred Olav (Director) Sale 9,538 6.35 60,585
2010-02-18 Johannessen Fred Olav (Director) Sale 2,962 6.35 18,808
2010-02-17 Johannessen Fred Olav (Director) Sale 10,000 6.25 62,500
2010-02-02 Johannessen Fred Olav (Director) Sale 12,344 6.15 75,890
2010-02-01 Johannessen Fred Olav (Director) Sale 10,156 6.07 61,616
2010-01-20 Johannessen Fred Olav (Director) Sale 5,548 6.82 37,859
2010-01-19 Johannessen Fred Olav (Director) Sale 7,112 6.78 48,219
2010-01-15 Johannessen Fred Olav (Director) Sale 57,123 6.61 377,525
2009-12-08 Johannessen Fred Olav (Director) Sale 33,012 6.46 213,323
2009-12-01 Johannessen Fred Olav (Director) Sale 29,000 5.59 162,255
2009-12-01 Michelet Hans Peter (Executive Chairman) Sale 65,000 5.62 365,105
2009-09-01 Johannessen Fred Olav (Director) Sale 29,000 5.07 146,972
2009-08-14 Sanchez-blanco Borja (SVP, Sales and Marketing) Buy 1,800 5.40 9,720
2009-08-03 Michelet Hans Peter (Executive Chairman) Sale 65,000 7.05 457,990
2009-06-01 Johannessen Fred Olav (Director) Sale 54,000 7.75 418,500
2009-05-27 Stover Richard (CTO) Sale 40,200 8.07 324,534
2009-05-26 Johannessen Fred Olav (Director) Sale 41,310 7.82 322,878
2009-05-20 Johannessen Fred Olav (Director) Sale 1,790 8.00 14,320
2009-05-20 Stover Richard (CTO) Sale 1,000 8.00 8,000
2009-05-19 Johannessen Fred Olav (Director) Sale 1,900 8.01 15,213
2009-05-12 Stover Richard (CTO and VP of Sales) Sale 13,470 8.03 108,123
2009-05-08 Johannessen Fred Olav (Director) Sale 800 8.63 6,903
2009-05-07 Johannessen Fred Olav (Director) Sale 400 8.60 3,440
2009-04-27 Johannessen Fred Olav (Director) Sale 754 8.61 6,494
2009-04-24 Johannessen Fred Olav (Director) Sale 11,727 8.61 100,910
2009-04-20 Wang Xiao Yin (VP, OEM Group) Sale 200 8.75 1,750
2009-04-20 Johannessen Fred Olav (Director) Sale 13,619 8.66 117,940
2009-04-16 Wang Xiao Yin (VP, OEM Group) Sale 1,800 7.76 13,971
2009-04-16 Johannessen Fred Olav (Director) Sale 15,050 7.73 116,276
2009-04-16 Pique Gonzalo G (President, CEO) Sale 20,000 7.98 159,660
2009-04-02 Wang Xiao Yin (VP, OEM Group) Sale 1,500 7.75 11,632
2009-04-02 Johannessen Fred Olav (Director) Sale 8,550 7.68 65,706
2009-04-01 Michelet Hans Peter (Executive Chairman) Sale 65,000 7.46 485,160
2009-03-31 Wang Xiao Yin (VP, OEM Group) Sale 1,700 7.82 13,285
2009-03-31 Johannessen Fred Olav (Director) Sale 36,400 7.74 281,590
2009-03-26 Pique Gonzalo G (President, CEO) Sale 14,600 7.13 104,127
2009-03-25 Pique Gonzalo G (President, CEO) Sale 6,300 6.99 44,049
2009-03-13 Wang Xiao Yin (VP, OEM Projects Group) Sale 5,000 6.41 32,025
2009-03-02 Johannessen Fred Olav (Director) Sale 54,000 6.15 331,669
2008-09-12 Pique Gonzalo G (President, CEO) Buy 6,000 7.03 42,180
2008-09-10 Pique Gonzalo G (President, CEO) Buy 5,000 7.56 37,800
2008-07-08 Arvarius As (10% Owner) Sale 2,000,000 7.91 15,810,000
2008-07-08 Medanich James (Director) Sale 306,534 7.91 2,423,151
2008-07-08 Johannessen Fred Olav (Director) Sale 533,472 7.91 4,217,096
2008-07-08 Michelet Hans Peter (Executive Chairman) Sale 350,000 7.91 2,766,750
2008-07-08 Hanstveit Arve (Director) Sale 381,751 7.91 3,017,741
2008-07-08 Pique Gonzalo G (President, CEO) Sale 130,000 7.91 1,027,650
2008-07-02 Cook Paul M. (Director) Buy 20,300 8.50 172,550
2008-07-02 Trempont Dominique (Director) Buy 17,900 8.50 152,150

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.