David M. Demski

Companies

• Paragon 28, Inc.Board member Dec 12, 2024 to now¹
• Alphatec Holdings, Inc.Board member Oct 19, 2023 to now²
• Axonics, Inc.Board member Feb 3, 2021 to Nov 15, 2024³
• Globus MedicalChief executive officer Aug 30, 2017 to Jan 31, 2022⁴
• Globus MedicalBoard member Aug 2, 2012 to Jan 31, 2022⁵
• Globus MedicalPresident Aug 2, 2012 to Jan 31, 2022⁵
• Globus MedicalChief operating officer Aug 2, 2012 to Mar 2, 2015⁵

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• AAlphatec Holdings, Inc. ATEC431,635 shares⁶$4.5M at $10.39Jun 10, 2026
• P2Paragon 28, Inc.0 shares⁷Apr 21, 2025
• AAxonics, Inc.0 shares⁸Nov 15, 2024

As of each latest filing. The line shows shares held over time.

Recent filings

• Jun 10, 2026Granted 32,012 shares of Alphatec Holdings, Inc.⁶
• Dec 11, 2025Sold 30,000 shares at $21.20 of Alphatec Holdings, Inc.⁹
• Jun 11, 2025Granted 15,131 shares of Alphatec Holdings, Inc.¹⁰
• Apr 21, 2025Returned to company 74,307 shares of Paragon 28, Inc.⁷
• Dec 18, 2024Granted 126,051 shares of Alphatec Holdings, Inc.¹¹
• Dec 10, 2024Granted 34,207 shares of Paragon 28, Inc.¹²
• Nov 15, 2024Returned to company 9,542 shares at $71.00 of Axonics, Inc.⁸
• Aug 21, 2024Bought 50,000 shares at $5.67 of Alphatec Holdings, Inc.¹³
• Aug 2, 2024Bought 40,000 shares at $6.56 of Alphatec Holdings, Inc.¹⁴
• Jun 12, 2024Granted 16,747 shares of Alphatec Holdings, Inc.¹⁵
• Nov 9, 2023Bought 30,000 shares at $10.50 of Alphatec Holdings, Inc.¹⁶
• Oct 17, 2023Granted 23,852 shares of Alphatec Holdings, Inc.¹⁷
• Oct 17, 2023Granted 7,842 shares of Alphatec Holdings, Inc.¹⁷
• Jun 26, 2023Granted 3,000 shares of Axonics, Inc.¹⁸
• Aug 18, 2022Granted 2,100 shares of Axonics, Inc.¹⁹
• Oct 22, 2021Granted 942 shares of Axonics, Inc.²⁰