David M Demski insider trades

Open-market stock purchases and sales by David M Demski, Unknown at Alphatec Holdings, Inc, from SEC Form 4 filings since Aug 8, 2012.

Track record: 100% of 2 scored buys are up 5% or more since purchase, averaging +50%.

Recent trades

DateStockTradeValue
Jun 10, 2026ATEC Alphatec Holdings, IncBought (not open market)—
Dec 11, 2025ATEC Alphatec Holdings, IncSold$636K

Companies traded

  • ATEC Alphatec Holdings, Inc: 3 buys, 1 sale, last Jun 10, 2026
  • FNA Paragon 28, Inc: other filings, last Apr 21, 2025
  • AXNX Axonics, Inc: other filings, last Nov 15, 2024
  • GMED Globus Medical Inc: 38 sales, last Jan 27, 2022

Get free alerts when David M Demski files a new trade →