David M Demski - Net Worth and Insider Trading
David M Demski Net Worth
The estimated net worth of David M Demski is at least $3 Million dollars as of 2025-04-26. David M Demski is the Director of Alphatec Holdings Inc and owns about 288,441 shares of Alphatec Holdings Inc (ATEC) stock worth over $3 Million. David M Demski is also the President, CEO of Globus Medical Inc and owns about 0 shares of Globus Medical Inc (GMED) stock worth over $0. Details can be seen in David M Demski'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 David M Demski has not made any transactions after 2024-08-21 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of David M Demski
David M Demski Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, David M Demski owns 3 companies in total, including Globus Medical Inc (GMED) , Axonics Inc (AXNX) , and Alphatec Holdings Inc (ATEC) .
Click here to see the complete history of David M Demski’s form 4 insider trades.
Insider Ownership Summary of David M Demski
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| GMED | Globus Medical Inc | 2020-12-17 | director & President and COO |
| AXNX | Axonics Inc | 2021-01-31 | director |
| ATEC | Alphatec Holdings Inc | 2024-08-21 | director |
David M Demski Latest Holdings Summary
David M Demski currently owns a total of 2 stocks. Among these stocks, David M Demski owns 288,441 shares of Alphatec Holdings Inc (ATEC) as of August 21, 2024, with a value of $3 Million and a weighting of 100%. David M Demski also owns 0 shares of Globus Medical Inc (GMED) as of December 17, 2020, with a value of $0 and a weighting of 0%.
Latest Holdings of David M Demski
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| ATEC | Alphatec Holdings Inc | 2024-08-21 | 288,441 | 11.51 | 3,319,956 |
| GMED | Globus Medical Inc | 2020-12-17 | 0 | 72.80 | 0 |
Holding Weightings of David M Demski
David M Demski Form 4 Trading Tracker
According to the SEC Form 4 filings, David M Demski has made a total of 3 transactions in Alphatec Holdings Inc (ATEC) over the past 5 years, including 3 buys and 0 sells. The most-recent trade in Alphatec Holdings Inc is the acquisition of 50,000 shares on August 21, 2024, which cost David M Demski around $283,500.
According to the SEC Form 4 filings, David M Demski has made a total of 3 transactions in Globus Medical Inc (GMED) over the past 5 years, including 0 buys and 3 sells. The most-recent trade in Globus Medical Inc is the sale of 217,075 shares on December 17, 2020, which brought David M Demski around $14 Million.
Insider Trading History of David M Demski
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David M Demski Trading Performance
GuruFocus tracks the stock performance after each of David M Demski's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by David M Demski is 58.1%. GuruFocus also compares David M Demski's trading performance to market benchmark return within the same time period. The performance of stocks bought by David M Demski within 3 months outperforms 3 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 David M Demski's insider trading performs compared to the benchmark.
Performance of David M Demski
Average Return
Outperforming Transactions
| 1 Month | 3 Months | 6 Months | 1 Year | 2 Years | 3 Years | |
|---|---|---|---|---|---|---|
| Return(%) | 13.76 | | | | | |
| Relative Return to S&P 500(%) | 9.42 | | | | | |
David M Demski Ownership Network
Ownership Network List of David M Demski
Ownership Network Relation of David M Demski
David M Demski Owned Company Details
What does Globus Medical Inc do?
Who are the key executives at Globus Medical Inc?
David M Demski is the director & President and COO of Globus Medical Inc. Other key executives at Globus Medical Inc include SVP & Chief Financial Officer Keith W Pfeil , SVP & General Counsel Kelly Huller , and director & Vice President & Operations David D Davidar .
Globus Medical Inc (GMED) Insider Trades Summary
Over the past 18 months, David M Demski made no insider transaction in Globus Medical Inc (GMED). Other recent insider transactions involving Globus Medical Inc (GMED) include a net sale of 135,000 shares made by David D Davidar , a net sale of 22,500 shares made by Kelly Huller , and a net sale of 190,000 shares made by Daniel T Scavilla .
In summary, during the past 3 months, insiders sold 0 shares of Globus Medical Inc (GMED) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 465,932 shares of Globus Medical Inc (GMED) were sold and 0 shares were bought by its insiders, resulting in a net sale of 465,932 shares.
Globus Medical Inc (GMED)'s detailed insider trading history can be found in Insider Trading Tracker table.
Globus Medical Inc Insider Transactions
David M Demski Mailing Address
Above is the net worth, insider trading, and ownership report for David M Demski. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, David M Demski's mailing address is: Audubon Pa 19403.
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