William Gross - Net Worth and Insider Trading

William Gross Net Worth

The estimated net worth of William Gross is at least $18 Million dollars as of 2024-12-28. William Gross is the Director of Energy Vault Holdings Inc and owns about 7,790,302 shares of Energy Vault Holdings Inc (NRGV) stock worth over $18 Million. William Gross is also the 10% Owner of Heliogen Inc and owns about 142,775 shares of Heliogen Inc (HLGN) stock worth over $258,423. Details can be seen in William Gross'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 William Gross has not made any transactions after 2024-02-15 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

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Transaction Summary of William Gross

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William Gross Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, William Gross owns 3 companies in total, including Energy Vault Holdings Inc (NRGV) , Heliogen Inc (HLGN) , and Athena Technology Acquisition Corp (ATHN.U) .

Click here to see the complete history of William Gross’s form 4 insider trades.

Insider Ownership Summary of William Gross

Ticker Comapny Transaction Date Type of Owner
NRGV Energy Vault Holdings Inc 2022-10-25 director
HLGN Heliogen Inc 2024-02-15 director & Chief Executive Officer
ATHN.U Athena Technology Acquisition Corp 2022-06-06 director & Chief Executive Officer

William Gross Latest Holdings Summary

William Gross currently owns a total of 2 stocks. Among these stocks, William Gross owns 7,790,302 shares of Energy Vault Holdings Inc (NRGV) as of October 25, 2022, with a value of $18 Million and a weighting of 98.55%. William Gross also owns 142,775 shares of Heliogen Inc (HLGN) as of February 15, 2024, with a value of $258,423 and a weighting of 1.45%.

Latest Holdings of William Gross

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
NRGV Energy Vault Holdings Inc 2022-10-25 7,790,302 2.25 17,528,180
HLGN Heliogen Inc 2024-02-15 142,775 1.81 258,423

Holding Weightings of William Gross


William Gross Form 4 Trading Tracker

According to the SEC Form 4 filings, William Gross has made a total of 5 transactions in Energy Vault Holdings Inc (NRGV) over the past 5 years, including 0 buys and 5 sells. The most-recent trade in Energy Vault Holdings Inc is the sale of 32,500 shares on October 25, 2022, which brought William Gross around $120,250.

According to the SEC Form 4 filings, William Gross has made a total of 13 transactions in Heliogen Inc (HLGN) over the past 5 years, including 3 buys and 10 sells. The most-recent trade in Heliogen Inc is the sale of 442,298 shares on February 15, 2024, which brought William Gross around $672,293.

Insider Trading History of William Gross

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.

William Gross Trading Performance

GuruFocus tracks the stock performance after each of William Gross's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by William Gross is -33.36%. GuruFocus also compares William Gross's trading performance to market benchmark return within the same time period. The performance of stocks bought by William Gross within 3 months outperforms 0 times out of 3 transactions in total compared to the return of S&P 500 within the same period.

You can select different timeframes to see how William Gross'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 William Gross

Average Return

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Average return per transaction

Outperforming Transactions

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0 out of 3 outperforming transactions.
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Return(%) -34.35 LIMIT LIMIT LIMIT LIMIT LIMIT
Relative Return to S&P 500(%) -31.65 LIMIT LIMIT LIMIT LIMIT LIMIT

William Gross Ownership Network

Ownership Network List of William Gross

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Ownership Network Relation of William Gross

Insider Network Chart

William Gross Owned Company Details

What does Energy Vault Holdings Inc do?

Who are the key executives at Energy Vault Holdings Inc?

William Gross is the director of Energy Vault Holdings Inc. Other key executives at Energy Vault Holdings Inc include Chief Engineering Officer Akshay Ladwa , Chief Operating Officer Christopher Wiese , and director & Chief Executive Officer Robert Piconi .

Energy Vault Holdings Inc (NRGV) Insider Trades Summary

Over the past 18 months, William Gross made no insider transaction in Energy Vault Holdings Inc (NRGV). Other recent insider transactions involving Energy Vault Holdings Inc (NRGV) include a net sale of 189,043 shares made by Goncagul Icoren , a net sale of 177,959 shares made by Akshay Ladwa , and a net sale of 357,619 shares made by Marco Terruzzin .

In summary, during the past 3 months, insiders sold 196,014 shares of Energy Vault Holdings Inc (NRGV) in total and bought 150,000 shares, with a net sale of 46,014 shares. During the past 18 months, 1,101,202 shares of Energy Vault Holdings Inc (NRGV) were sold and 499,915 shares were bought by its insiders, resulting in a net sale of 601,287 shares.

Energy Vault Holdings Inc (NRGV)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Energy Vault Holdings Inc Insider Transactions

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William Gross Mailing Address

Above is the net worth, insider trading, and ownership report for William Gross. You might contact William Gross via mailing address: C/o Bill Gross' Idealab, 130 W Union Street, Pasadena Ca 91103.

Discussions on William Gross

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