Matthew Allen Walker - Net Worth and Insider Trading
Matthew Allen Walker Net Worth
The estimated net worth of Matthew Allen Walker is at least $7 Million dollars as of 2025-07-25. Matthew Allen Walker is the Director, 10% Owner of GreenLight Biosciences Holdings PBC and owns about 22,284,347 shares of GreenLight Biosciences Holdings PBC (GRNA) stock worth over $7 Million. Details can be seen in Matthew Allen Walker's Latest Holdings Summary section.
Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the final shares held after open market or private purchases and sales of common stock with a transaction code of "P" or "S" on Form 4, assuming that Matthew Allen Walker has not made any transactions after 2022-08-11 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Matthew Allen Walker
Matthew Allen Walker Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Matthew Allen Walker 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 Matthew Allen Walker’s form 4 insider trades.
Insider Ownership Summary of Matthew Allen Walker
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
GRNA | GreenLight Biosciences Holdings PBC | 2023-07-24 | director & 10 percent owner |
ENVIU | Environmental Impact Acquisition Corp | 2023-07-24 | director & 10 percent owner |
Matthew Allen Walker Latest Holdings Summary
Matthew Allen Walker currently owns a total of 1 stock. Matthew Allen Walker owns 22,284,347 shares of GreenLight Biosciences Holdings PBC (GRNA) as of August 11, 2022, with a value of $7 Million.
Latest Holdings of Matthew Allen Walker
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
GRNA | GreenLight Biosciences Holdings PBC | 2022-08-11 | 22,284,347 | 0.30 | 6,674,162 |
Holding Weightings of Matthew Allen Walker
Matthew Allen Walker Form 4 Trading Tracker
According to the SEC Form 4 filings, Matthew Allen Walker has made a total of 2 transactions in GreenLight Biosciences Holdings PBC (GRNA) over the past 5 years, including 2 buys and 0 sells. The most-recent trade in GreenLight Biosciences Holdings PBC is the acquisition of 6,441,326 shares on August 11, 2022, which cost Matthew Allen Walker around $25 Million.
Insider Trading History of Matthew Allen Walker
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Matthew Allen Walker Trading Performance
GuruFocus tracks the stock performance after each of Matthew Allen Walker's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Matthew Allen Walker is -52.25%. GuruFocus also compares Matthew Allen Walker's trading performance to market benchmark return within the same time period. The performance of stocks bought by Matthew Allen Walker within 3 months outperforms 0 times out of 1 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Matthew Allen Walker's insider trading performs compared to the benchmark.
Performance of Matthew Allen Walker
Matthew Allen Walker Ownership Network
Ownership Network List of Matthew Allen Walker
Ownership Network Relation of Matthew Allen Walker

Matthew Allen Walker Owned Company Details
What does GreenLight Biosciences Holdings PBC do?
Who are the key executives at GreenLight Biosciences Holdings PBC?
Matthew Allen Walker is the director & 10 percent owner of GreenLight Biosciences Holdings PBC. Other key executives at GreenLight Biosciences Holdings PBC include director & President & CEO Juan Andrey Zarur , other: Member of 13D Group Montealegre Lacayo Jaime Javier , and 10 percent owner Builders Vision, Llc .
GreenLight Biosciences Holdings PBC (GRNA) Insider Trades Summary
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, 0 shares of GreenLight Biosciences Holdings PBC (GRNA) were sold and 0 shares were bought by its insiders, resulting in a net sale of 0 shares.
GreenLight Biosciences Holdings PBC (GRNA)'s detailed insider trading history can be found in Insider Trading Tracker table.
GreenLight Biosciences Holdings PBC Insider Transactions
Matthew Allen Walker Mailing Address
Above is the net worth, insider trading, and ownership report for Matthew Allen Walker. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Matthew Allen Walker's mailing address is: Medford Ma 02155.