ROBERT YU LANG MAO Insider Trading

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General | Insider Transactions | Monthly Overview

Get the latest insider transactions of ROBERT YU LANG MAO. ROBERT YU LANG MAO is a CEO in 3COM CORP ($COMS) and a Director in 3COM CORP ($COMS) and a EVP Corp Development in 3COM CORP ($COMS) and a Director in CYPRESS SEMICONDUCTOR CORP /DE/ ($CY) and a President & CEO, Nortel China in NORTEL NETWORKS CORP ($NT) and a Director in Energy Recovery, Inc. ($ERII) and a President and CEO in Energy Recovery, Inc. ($ERII).

Address: C/O NORTEL NETWORKS CORPORATION 8200 DIXIE RD SUITE 100 BRAMPTON L6T 5P6 A6

Companies in which ROBERT YU LANG MAO is an Insider

3COM CORP

Trading Symbol: COMS
Industry: COMPUTER COMMUNICATIONS EQUIPMENT [3576]
Position of ROBERT YU LANG MAO: CEO, Director, EVP Corp Development
Holdings: 0 shares
Latest Transaction: Apr 14 2010

Last 4 weeks trend: HOLD
Last 3 months trend: HOLD View transactions

CYPRESS SEMICONDUCTOR CORP /DE/

Trading Symbol: CY
Industry: SEMICONDUCTORS & RELATED DEVICES [3674]
Position of ROBERT YU LANG MAO: Director
Holdings: 36,842 shares
Current Value: $468,262
Latest Transaction: Mar 17 2015
$CY Market Capitalization: $4.08B
$CY Previous Close: $12.71

Last 4 weeks trend: HOLD
Last 3 months trend: HOLD View transactions

Energy Recovery, Inc.

Trading Symbol: ERII
Industry: SPECIAL INDUSTRY MACHINERY, NEC [3559]
Position of ROBERT YU LANG MAO: President and CEO, Director
Holdings: 227,111 shares
Current Value: $2,271,110
Latest Transaction: Feb 03 2021
$ERII Market Capitalization: $505.19M
$ERII Previous Close: $10.00

Last 4 weeks trend: HOLD
Last 3 months trend: HOLD View transactions

NORTEL NETWORKS CORP

Trading Symbol: NT
Industry: TELEPHONE & TELEGRAPH APPARATUS [3661]
Position of ROBERT YU LANG MAO: President & CEO, Nortel China
Holdings: 166,632 shares
Latest Transaction: Jul 30 2003

Last 4 weeks trend: HOLD
Last 3 months trend: HOLD View transactions

Latest Insider Trading Transactions of ROBERT YU LANG MAO

Sentiment: All, COMS, CY, ERII, NT

DateTickerCompanyOwnerRelationship Transaction Code Cost ($) Shares Transaction Value ($) Total Shares % Holdings
Feb 03 2021ERIIEnergy Recovery, I ...MAO ROBERT YU LANGPresident and CEOOption ExerciseA13.96191,5342,673,815191,534
Dec 15 2020ERIIEnergy Recovery, I ...MAO ROBERT YU LANGPresident and CEOOption ExerciseM2.4945,708113,8130
Dec 15 2020ERIIEnergy Recovery, I ...MAO ROBERT YU LANGPresident and CEOSellS12.229,500116,079217,611227.1 K to 217.6 K (-4.18 %)
Dec 15 2020ERIIEnergy Recovery, I ...MAO ROBERT YU LANGPresident and CEOBuyM2.4945,708113,813227,111181.4 K to 227.1 K (+25.20 %)
May 22 2020ERIIEnergy Recovery, I ...MAO ROBERT YU LANGPresident and CEOOption ExerciseA7.7950,000389,50050,000
May 22 2020ERIIEnergy Recovery, I ...MAO ROBERT YU LANGPresident and CEOOption ExerciseA7.79223,6131,741,945223,613
Jul 10 2019ERIIEnergy Recovery, I ...MAO ROBERT YU LANGDirectorOption ExerciseA9.9821,303212,60421,303

View all ROBERT YU LANG MAO insider transactions.