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Insider Trading

Robert Yu Lang Mao Net Worth

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Last Updated: 2 days, 3 hours ago

Robert Yu Lang Mao has an estimated net worth of at least $10.8 million*, as of May 7, 2025. They own 281,101 shares of ERII stock. They have sold 387,546 shares of ERII stock since 2021, for an estimated $6.6 million.

Robert Yu Lang Mao $ERII SEC Form 4 Insider Trading

Robert Yu Lang Mao has filed a total of 9 insider trades in $ERII since 2021. Their most recent trade was a sale of 21,045 shares, made on May 22, 2024. Their largest trade was a sale of 130,000 shares, made on Nov 06, 2023. We estimate that they now own 281,101 shares of $ERII, worth an estimated $4.2 million.



Insider Trading at $ERII

There have been a total of 86 insider trades reported at $ERII since 2021, with 45,600 shares purchased and 2.7 million shares sold. The most active insider traders in $ERII stock have been Rodney Clemente, William Yeung, and Joshua Ballard. The most recent trade was a sale of 50,000 shares reported by Arve Hanstveit (None), made on Mar 11, 2025.



History of Insider Stock Trades by Robert Yu Lang Mao

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
ERII logo ERII Sale 21,045 May 22, 2024 May 24, 2024, 4:55 p.m.
ERII logo ERII Sale 20,509 Mar 04, 2024 March 6, 2024, 5:57 p.m.
ERII logo ERII Sale 15,270 Mar 04, 2024 March 6, 2024, 5:57 p.m.
ERII logo ERII Sale 5,142 Mar 01, 2024 March 4, 2024, 8:35 p.m.
ERII logo ERII Sale 39,314 Feb 29, 2024 March 4, 2024, 8:35 p.m.
ERII logo ERII Sale 32,883 Mar 01, 2024 March 4, 2024, 8:35 p.m.
ERII logo ERII Sale 121,383 Nov 07, 2023 Nov. 8, 2023, 8:38 p.m.
ERII logo ERII Sale 130,000 Nov 06, 2023 Nov. 8, 2023, 8:38 p.m.
ERII logo ERII Sale 2,000 Aug 09, 2022 Aug. 11, 2022, 5:59 p.m.




$ERII Executives and Stock Owners with Insider Trades



*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.