David B Brewster - Net Worth and Insider Trading

David B Brewster Net Worth

The estimated net worth of David B Brewster is at least $9 Million dollars as of 2024-04-18. David B Brewster is the President of EnerNOC Inc and owns about 1,239,553 shares of EnerNOC Inc (ENOC) stock worth over $9 Million. Details can be seen in David B Brewster's Latest Holdings Summary section.

Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the assumption that David B Brewster has not made any transactions after 2016-03-01 and currently still holds the listed stock(s).

Transaction Summary of David B Brewster

To

David B Brewster Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, David B Brewster owns 2 companies in total, including GreenLight Biosciences Holdings PBC (GRNA) , and Environmental Impact Acquisition Corp (ENVIU) .

Click here to see the complete history of David B Brewster’s form 4 insider trades.

Insider Ownership Summary of David B Brewster

Ticker Comapny Transaction Date Type of Owner
GRNA GreenLight Biosciences Holdings PBC 2021-01-13 director
ENVIU Environmental Impact Acquisition Corp 2021-01-13 director

David B Brewster Latest Holdings Summary

David B Brewster currently owns a total of 1 stock. David B Brewster owns 1,239,553 shares of EnerNOC Inc (ENOC) as of March 1, 2016, with a value of $9 Million.

Latest Holdings of David B Brewster

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
ENOC EnerNOC Inc 2016-03-01 1,239,553 7.65 9,482,580

Holding Weightings of David B Brewster


David B Brewster Form 4 Trading Tracker

According to the SEC Form 4 filings, David B Brewster has made a total of 0 transactions in EnerNOC Inc (ENOC) over the past 5 years. The most-recent trade in EnerNOC Inc is the acquisition of 35,500 shares on March 1, 2016, which cost David B Brewster around $218,325.

Insider Trading History of David B Brewster

No transactions are available. GuruFocus only tracks and displays the purchase and sale of non-derivative security in open market or private transactions from SEC filings with the transaction code of P or S.
Total 0
  • 1
Only the transactions in Open Market or Private Sale at the market prices are included. Other transactions such as conversion of derivative security or exercise of options are not included. Insiders are limited to only officers and/or directors of the company.

David B Brewster Trading Performance

GuruFocus tracks the stock performance after each of David B Brewster's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by David B Brewster is 14.7%. GuruFocus also compares David B Brewster's trading performance to market benchmark return within the same time period. The performance of stocks bought by David B Brewster within 3 months outperforms 5 times out of 9 transactions in total compared to the return of S&P 500 within the same period.

You can select different timeframes to see how David B Brewster's insider trading performs compared to the benchmark.

Please note GuruFocus will not track the insiders’ transaction performance if he/she does not have buying transactions.

Performance of David B Brewster

Average Relative Return

55.47%

Average relative return per transaction

Outperforming Transactions

67%

6 out of 9 outperforming transactions.
Each transaction is measured over a period and compared to .
1 Month 3 Months 6 Months 1 Year 2 Years 3 Years
Relative Return(%) 1.46 14.7 28.4 55.47 40.78 13.68
Relative Return to S&P 500(%) 4.11 18.31 26.76 47.57 30.21 2.79

David B Brewster Ownership Network

Ownership Network List of David B Brewster

No Data

Ownership Network Relation of David B Brewster


David B Brewster Owned Company Details

What does GreenLight Biosciences Holdings PBC do?

Who are the key executives at GreenLight Biosciences Holdings PBC?

David B Brewster is the director of GreenLight Biosciences Holdings PBC. Other key executives at GreenLight Biosciences Holdings PBC include director & 10 percent owner Matthew Allen Walker , other: Member of 10% owner group Marta Ortega-valle , and other: Member of 13D Group Montealegre Lacayo Jaime Javier .

GreenLight Biosciences Holdings PBC (GRNA) Insider Trades Summary

Over the past 18 months, David B Brewster made no insider transaction in GreenLight Biosciences Holdings PBC (GRNA). Other recent insider transactions involving GreenLight Biosciences Holdings PBC (GRNA) include a net sale of 9,188,659 shares made by Cormorant Global Healthcare Master Fund, Lp ,

In summary, during the past 3 months, insiders sold 0 shares of GreenLight Biosciences Holdings PBC (GRNA) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 9,188,659 shares of GreenLight Biosciences Holdings PBC (GRNA) were sold and 0 shares were bought by its insiders, resulting in a net sale of 9,188,659 shares.

GreenLight Biosciences Holdings PBC (GRNA)'s detailed insider trading history can be found in Insider Trading Tracker table.

To

GreenLight Biosciences Holdings PBC Insider Transactions

No Available Data

David B Brewster Mailing Address

Above is the net worth, insider trading, and ownership report for David B Brewster. You might contact David B Brewster via mailing address: 46 Brewster Street, Cambridge Ma 02138.

Discussions on David B Brewster

No discussions yet.