David M Demski - Net Worth and Insider Trading

David M Demski Net Worth

The estimated net worth of David M Demski is at least $2 Million dollars as of 2024-09-21. David M Demski is the Director of Alphatec Holdings Inc and owns about 288,441 shares of Alphatec Holdings Inc (ATEC) stock worth over $2 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.

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Transaction Summary of David M Demski

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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 Comapny 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 $2 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 Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
ATEC Alphatec Holdings Inc 2024-08-21 288,441 6.02 1,736,415
GMED Globus Medical Inc 2020-12-17 0 70.64 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

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 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 65.81%. 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 1 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 M Demski'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 M Demski

Average Return

No transaction record over 1 Year.

Outperforming Transactions

No transaction record over 1 Year.
Each transaction is measured over a period and compared to .
1 Month 3 Months 6 Months 1 Year 2 Years 3 Years
Return(%) 10.41 LIMIT LIMIT LIMIT LIMIT LIMIT
Relative Return to S&P 500(%) 6.96 LIMIT LIMIT LIMIT LIMIT LIMIT

David M Demski Ownership Network

Ownership Network List of David M Demski

No Data

Ownership Network Relation of David M Demski

Insider Network Chart

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 director & Vice President & Operations David D Davidar , SVP & General Counsel Kelly Huller , and SVP & Chief Financial Officer Keith W Pfeil .

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 106,750 shares made by Dan Lemaitre , a net sale of 45,000 shares made by David D Davidar , and a net sale of 11,590 shares made by Leslie V Norwalk .

In summary, during the past 3 months, insiders sold 41,000 shares of Globus Medical Inc (GMED) in total and bought 0 shares, with a net sale of 41,000 shares. During the past 18 months, 185,840 shares of Globus Medical Inc (GMED) were sold and 0 shares were bought by its insiders, resulting in a net sale of 185,840 shares.

Globus Medical Inc (GMED)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Globus Medical Inc Insider Transactions

No Available Data

David M Demski Mailing Address

Above is the net worth, insider trading, and ownership report for David M Demski. You might contact David M Demski via mailing address: C/o Globus Medical, Inc., 2560 General Armistead Avenue, Audubon Pa 19403.

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