ATEC Alphatec

• $2M bought by 2 insiders
• $78M sold by 9 insiders outside a trading plan
• $11.7M sold by 5 insiders under 10b5-1 plans

1. Insider
   Trade
   Value
   Traded, filed
2. Patrick Miles CEO
   Buy
   $1M 115,000 shares at $8.81 +2% to stake
   Traded Sep 10 Filed Sep 10
   ↗
3. Keith Valentine Director
   Buy
   $996K 135,000 shares at $7.38 +139% to stake
   Traded May 7–11 Filed May 11
   ↗
4. Scott Lish COO
   Sale
   $3.2M 260,535 shares at $12.30 24% of stake
   Traded Mar 13 Filed Mar 17
   ↗
5. Craig E Hunsaker EVP, People & Culture
   Planned sale
   $1M 82,765 shares at $12.45 4.6% of stake
   Traded Mar 9 Filed Mar 10
   ↗
6. Patrick Miles CEO
   Planned sale
   $2.1M 100,000 shares at $21.01 1.9% of stake
   Traded Jan 5 Filed Jan 6
   ↗
7. Scott Lish COO
   Planned sale
   $391K 19,900 shares at $19.64 3% of stake
   Traded Dec 16, 2025 Filed Dec 18, 2025
   ↗
8. David R Pelizzon Director
   Sale
   $4.9M 250,000 shares at $19.66 2.3% of stake
   Traded Dec 16, 2025 Filed Dec 18, 2025
   ↗
9. David Sponsel EVP, Sales
   Planned sale
   $439K 21,106 shares at $20.79 4.6% of stake
   Traded Dec 10, 2025 Filed Dec 12, 2025
   ↗
10. David M Demski Director
    Sale
    $636K 30,000 shares at $21.20 7% of stake
    Traded Dec 11, 2025 Filed Dec 12, 2025
    ↗
11. Craig E Hunsaker EVP, People & Culture
    Sale
    $679K 32,584 shares at $20.84 2.5% of stake
    Traded Dec 10, 2025 Filed Dec 12, 2025
    ↗
12. Squadron Capital LLC 10% owner
    Sale
    $5.3M 250,000 shares at $21.18 2.3% of stake
    Traded Dec 8–9 Filed Dec 10, 2025
    ↗
13. Scott Lish COO
    Sale
    $233K 10,875 shares at $21.47 1.6% of stake
    Traded Dec 5, 2025 Filed Dec 9, 2025
    ↗

Also filed in the last 12 months, not counted as buying or selling: 25 stock grants, 9 option exercises, 9 sales to cover taxes, 6 share withholdings for taxes, and 1 gift.