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David Demski Insider Profile

4 Followers
David Demski, Director at Alphatec Holdings, holds 431.63K shares in Alphatec Holdings (Ticker: ATEC), holds 0.00 shares in Paragon 28 (Ticker: FNA), holds 0.00 shares in Axonics Modulation Technologies (Ticker: AXNX).
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David Demski

David Demski
Alphatec Holdings (ATEC)
Director

Ranked #5,546 out of 108,921 Corporate Insiders

Profitable Transactions

80%
4 out of 5 Profitable Transactions

Average Return

+73.80%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark
How are Insiders Ranked?

Insider Holdings

$4M
100.00%
0.00%
A breakdown of David Demski's holdings
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Insider Roles

Alphatec Holdings
(ATEC)
Director
Globus Medical
(GMED)
President & CEO, Director
Roles that David Demski holds in companies
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Most Profitable Insider Trade

Stock:
Alphatec Holdings
(ATEC)
Rating:Informative Buy
Date:Aug 21, 2024 - Aug 21, 2025
Return:+180.40%
The most profitable trade made by David Demski
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David Demski's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
ATEC
Alphatec Holdings
Jun 12, 2026
Director
Uninformative Buy
―
$3.97M
FNA
Paragon 28
Apr 21, 2025
―
Uninformative Sell
―
$0.00
GMED
Globus Medical
Apr 27, 2021
President & CEO, Director
Uninformative Buy
9.48M
$0.00
AXNX
Axonics Modulation Technologies
Nov 15, 2024
―
Uninformative Sell
677.48K
$0.00
List of latest transactions for each holding click on a transaction to see David Demski's performance on stock
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David Demski insider profile FAQ

What is the percentage of profitable transactions made by David Demski?
The percentage of profitable transactions made by David Demski is 80%.
    What is the average return per transaction made by David Demski?
    The average return per transaction made by David Demski is 73.80%.
      What stocks does David Demski hold?
      David Demski holds: ATEC, FNA, GMED, AXNX stocks.
        What was David Demski’s latest transaction?
        David Demski latest transaction was an Uninformative Buy of ―.
          What was David Demski's most profitable transaction?
          David Demski’s most profitable transaction was an Informative Buy of ATEC stock on August 21, 2024. The return on the trade was 180.40%.
            What is David Demski's role in Alphatec Holdings?
            David Demski's role in Alphatec Holdings is Director.
              How can I follow the stock ratings of top corporate insiders?
              Head over to our Expert Center to see a list of the Top 100 corporate insiders and follow the corporate insiders of your choice. Visit their profiles for more details about their stock transactions and see how they perform on a stock-by-stock basis.