David G Dewalt - Net Worth and Insider Trading
David G Dewalt Net Worth
The estimated net worth of David G Dewalt is at least $158 Million dollars as of 2023-10-03. David G Dewalt is the Executive Chairman of Mandiant Inc and owns about 4,797,447 shares of Mandiant Inc (MNDT) stock worth over $110 Million. David G Dewalt is the EVP & Pres. Cust Ops & CM Soft of EMC Corp and owns about 934,637 shares of EMC Corp (EMC) stock worth over $22 Million. David G Dewalt is also the Director of ForeScout Technologies Inc and owns about 442,748 shares of ForeScout Technologies Inc (FSCT) stock worth over $13 Million. Besides these, David G Dewalt also holds Five9 Inc (FIVN) , Polycom Inc (PLCM) . Details can be seen in David G Dewalt's Latest Holdings Summary section.
Transaction Summary of David G Dewalt
David G Dewalt Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, David G Dewalt owns 8 companies in total, including ForeScout Technologies Inc (FSCT) , Delta Air Lines Inc (DAL) , and Five9 Inc (FIVN) among others .
Click here to see the complete history of David G Dewalt’s form 4 insider trades.
Insider Ownership Summary of David G Dewalt
Ticker | Comapny | Transaction Date | Type of Owner |
---|---|---|---|
FSCT | ForeScout Technologies Inc | 2020-08-17 | director |
DAL | Delta Air Lines Inc | 2011-11-22 | director |
FIVN | Five9 Inc | 2016-05-18 | director |
MNDT | Mandiant Inc | 2013-09-19 | director & Chief Executive Officer |
PLCM | Polycom Inc | 2013-05-16 | director |
JIVE | Jive Software Inc | 2011-12-12 | director |
EMC | EMC Corp | 2007-02-05 | EVP & Pres. Cust Ops & CM Soft |
NDACU | NightDragon Acquisition Corp | 2021-03-01 | director & 10 percent owner |
David G Dewalt Latest Holdings Summary
David G Dewalt currently owns a total of 5 stocks. Among these stocks, David G Dewalt owns 4,797,447 shares of Mandiant Inc (MNDT) as of January 3, 2017, with a value of $110 Million and a weighting of 69.59999999999999%. David G Dewalt owns 934,637 shares of EMC Corp (EMC) as of January 29, 2007, with a value of $22 Million and a weighting of 13.77%. David G Dewalt also owns 442,748 shares of ForeScout Technologies Inc (FSCT) as of February 11, 2020, with a value of $13 Million and a weighting of 8.1%. The other 2 stocks Five9 Inc (FIVN) , Polycom Inc (PLCM) have a combined weighting of 8.529999999999999% among all his current holdings.
Latest Holdings of David G Dewalt
Ticker | Comapny | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
MNDT | Mandiant Inc | 2017-01-03 | 4,797,447 | 22.98 | 110,245,332 |
EMC | EMC Corp | 2007-01-29 | 934,637 | 23.34 | 21,814,428 |
FSCT | ForeScout Technologies Inc | 2020-02-11 | 442,748 | 28.99 | 12,835,265 |
FIVN | Five9 Inc | 2022-03-04 | 199,497 | 61.70 | 12,308,965 |
PLCM | Polycom Inc | 2012-10-31 | 96,420 | 12.47 | 1,202,357 |
Holding Weightings of David G Dewalt
David G Dewalt Form 4 Trading Tracker
According to the SEC Form 4 filings, David G Dewalt has made a total of 0 transactions in Mandiant Inc (MNDT) over the past 5 years. The most-recent trade in Mandiant Inc is the sale of 151,644 shares on January 3, 2017, which brought David G Dewalt around $2 Million.
According to the SEC Form 4 filings, David G Dewalt has made a total of 0 transactions in EMC Corp (EMC) over the past 5 years. The most-recent trade in EMC Corp is the sale of 250,000 shares on January 29, 2007, which brought David G Dewalt around $4 Million.
According to the SEC Form 4 filings, David G Dewalt has made a total of 6 transactions in ForeScout Technologies Inc (FSCT) over the past 5 years, including 0 buys and 6 sells. The most-recent trade in ForeScout Technologies Inc is the sale of 41,559 shares on February 11, 2020, which brought David G Dewalt around $1 Million.
More details on David G Dewalt's insider transactions can be found in the Insider Trading History of David G Dewalt table.Insider Trading History of David G Dewalt
- 1
David G Dewalt Trading Performance
GuruFocus tracks the stock performance after each of David G Dewalt's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by David G Dewalt is -44.57%. GuruFocus also compares David G Dewalt's trading performance to market benchmark return within the same time period. The performance of stocks bought by David G Dewalt 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 David G Dewalt's insider trading performs compared to the benchmark.
Performance of David G Dewalt
Average Relative Return
Outperforming Transactions
1 Month | 3 Months | 6 Months | 1 Year | 2 Years | 3 Years | |
---|---|---|---|---|---|---|
Relative Return(%) | -11.67 | -44.57 | -45.66 | -48.22 | -22 | -7.64 |
Relative Return to S&P 500(%) | -11.31 | -34.13 | -43.66 | -47.55 | -33.08 | -17.12 |
David G Dewalt Ownership Network
Ownership Network List of David G Dewalt
Ownership Network Relation of David G Dewalt
David G Dewalt Owned Company Details

What does ForeScout Technologies Inc do?
ForeScout Technologies Inc is a US-based company that provides an agentless approach to network security to address the growth of mobile computing, IoT (Internet of Things) and cloud computing. The company provides solutions that provide the ability to see devices, including non-traditional devices, and connects to the network and enforce policy-based control of these devices. The product line of the company includes CounterACT, Extended Modules, Enterprise Manager, IoT, and others. The majority of the company's revenue comes from the United States.
Who are the key executives at ForeScout Technologies Inc?
David G Dewalt is the director of ForeScout Technologies Inc. Other key executives at ForeScout Technologies Inc include SVP & GC & Corp Compliance Ofcr Darren J. Milliken , Chief Operating Officer Nicholas R Noviello , and 10 percent owner Arthur C Patterson .
ForeScout Technologies Inc (FSCT) Insider Trades Summary
In summary, during the past 3 months, insiders sold 0 shares of ForeScout Technologies Inc (FSCT) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 0 shares of ForeScout Technologies Inc (FSCT) were sold and 0 shares were bought by its insiders, resulting in a net sale of 0 shares.
ForeScout Technologies Inc (FSCT)'s detailed insider trading history can be found in Insider Trading Tracker table.
ForeScout Technologies Inc Insider Transactions
David G Dewalt Mailing Address
Above is the net worth, insider trading, and ownership report for David G Dewalt. Currently GuruFocus does not have mailing address information for David G Dewalt.