Insider Stock Trading History of Mao Robert Yu Lang


The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Mao Robert Yu Lang since year 2005. The trader's CIK number is 1232218. At the time of this reporting, Mao Robert Yu Lang is the Director of Energy Recovery, Inc. . (stock ticker symbol ERII). See this page for all insider trading activities at Energy Recovery, Inc. .

Note that in the past MAO ROBERT YU LANG also reported insider trading activities as an insider of the following companies:
Stock purchases, sales, and option exercises reported by insider Mao Robert Yu Lang since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2017-03-14 ERII Energy Recovery, Inc. Buy 20,000 7.53 150,620
2016-05-11 ERII Energy Recovery, Inc. Option Ex 25,000 3.45 86,250
2016-03-11 ERII Energy Recovery, Inc. Buy 40,000 9.45 378,160
2015-03-15 CY Cypress Semiconductor Corp /de/ Option Ex 36,842 .00 0
2014-05-21 ERII Energy Recovery, Inc. Buy 2,200 4.58 10,084
2014-05-20 ERII Energy Recovery, Inc. Buy 47,800 4.57 218,207
2011-06-14 ERII Energy Recovery, Inc. Sale 7,361 2.67 19,668
2008-03-28 COMS 3com Corp Buy 150,000 2.22 333,000

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Mao Robert Yu Lang (Director of Energy Recovery, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.