David Sponsel's Planned Sale of Alphatec Holdings Inc. Securities

David Sponsel, an officer of Alphatec Holdings Inc., has filed a notice of planned sale of securities under Rule 144. The securities to be sold consist of 70,000 common shares acquired through the vesting of Restricted Stock Units (RSUs) and Performance Stock Units (PSUs) between April 2, 2023, and February 1, 2025. The sale is scheduled to occur on or around October 24, 2025, with an aggregate market value of approximately $1,112,300. Additionally, Sponsel has reported recent sales of 2555 shares on September 19, 2025, and 137,445 shares on September 18, 2025, totaling $2,113,926.92. The transactions are part of a 10b5-1 trading plan adopted on June 12, 2025.