Updated: May 19, 2026

Robert Yu Lang Mao

ERIIEnergy Recovery, Inc.SEC CIK: 0001232218
Estimated Net Worth
$7.39 Million
Last Updated: May 19, 2026 03:50 AM EST

Transaction Summary

Total Transactions52
Buy-Sell Ratio1.94
Buy Transactions31
Sell Transactions16

Transaction Volume

Total Volume$9.94M
Net Volume$41.67K
Buy Volume$4.99M
Sell Volume$4.95M

Trade Analysis

AVG Trade Size$191.21K
Largest Trade$2.57M
Most Active MonthJun
Most Active Year2023

Trading Sentiment

OverallBullish
Recent TradeSelling
Last 90 Days0 Trades
ConvictionNone

Net Worth & Trading Activity Over Time

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Monthly Trading Pattern

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Past Insider Trading and Trends

Robert Yu Lang Mao has an estimated net worth of $7.39 Million. This is based on reported shares across multiple companies, which include Energy Recovery, Inc., CYPRESS SEMICONDUCTOR CORP /DE/, 3COM CORP, and NORTEL NETWORKS CORP.



2008 was Robert Yu Lang Mao's most active year for acquiring shares with 12 total transactions. Robert Yu Lang Mao's most active month to acquire stocks was the month of February. 2024 was Robert Yu Lang Mao's most active year for disposing of shares, totalling 18 transactions. Robert Yu Lang Mao's most active month to dispose stocks was the month of February. 2022 saw Robert Yu Lang Mao paying a total of $2,662,577.67 for 152,517 shares, this is the most they've acquired in one year. In 2023 Robert Yu Lang Mao cashed out on 612,782 shares for a total of $4,496,121.66, their largest year based on trade value.

Holdings & Transactions

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