Alphatec Holdings

John Todd Koning sold 79,789 shares of ATEC on 13 March. They now own 600,721 ATEC shares, or a 12% holding decrease.

Scott Lish sold 260,535 shares of ATEC on 13 March. They now own 815,704 ATEC shares, or a 24% holding decrease.

David Sponsel sold 163,452 shares of ATEC on 11 March. They now own 504,932 ATEC shares, or a 24% holding decrease.

Tyson Eliot Marshall sold 88,835 shares of ATEC on 5 March. They now own 559,459 ATEC shares, or a 14% holding decrease.

David Sponsel sold 60,425 shares of ATEC on 5 February. They now own 349,500 ATEC shares, or a 15% holding decrease.

David M Demski sold 30,000 shares of ATEC on 11 December. They now own 399,623 ATEC shares, or a 7% holding decrease.

Tyson Eliot Marshall sold 22,889 shares of ATEC on 5 December. They now own 345,442 ATEC shares, or a 6% holding decrease.

Tyson Eliot Marshall sold 70,000 shares of ATEC on 20 November. They now own 368,331 ATEC shares, or a 16% holding decrease.

Jeffrey P Rydin sold 200,000 shares of ATEC on 3 November. They now own 385,441 ATEC shares, or a 34% holding decrease.

Craig E Hunsaker sold 100,000 shares of ATEC on 31 October. They now own 1,289,142 ATEC shares, or a 7% holding decrease.

David Sponsel sold 70,000 shares of ATEC on 24 October. They now own 461,861 ATEC shares, or a 13% holding decrease.

David Sponsel sold 137,445 shares of ATEC on 18 September. They now own 534,416 ATEC shares, or a 20% holding decrease.

Mortimer Iii Berkowitz sold 62,500 shares of ATEC on 9 September. They now own 618,050 ATEC shares, or a 9% holding decrease.

Patrick Miles sold 300,000 shares of ATEC on 2 September. They now own 5,564,078 ATEC shares, or a 5% holding decrease.

Karen K Mcginnis sold 3,963 shares of ATEC on 11 June. They now own 68,709 ATEC shares, or a 5% holding decrease.

Craig E Hunsaker sold 186,122 shares of ATEC on 4 June. They now own 1,463,896 ATEC shares, or a 11% holding decrease.

Scott Lish sold 55,375 shares of ATEC on 19 May. They now own 771,645 ATEC shares, or a 7% holding decrease.

John Todd Koning sold 37,500 shares of ATEC on 22 April. They now own 466,536 ATEC shares, or a 7% holding decrease.

John Todd Koning sold 165,121 shares of ATEC on 10 March. They now own 483,107 ATEC shares, or a 25% holding decrease.

Karen K Mcginnis sold 38,320 shares of ATEC on 3 March. They now own 57,541 ATEC shares, or a 40% holding decrease.

David Sponsel sold 58,283 shares of ATEC on 13 January. They now own 502,311 ATEC shares, or a 10% holding decrease.

Evan Bakst bought 35,000 shares of ATEC on 23 August. They now own 50,000 ATEC shares, or a 233% holding increase.

David R Pelizzon bought 16,978 shares of ATEC on 23 August. They now own 331,696 ATEC shares, or a 5% holding increase.

David M Demski bought 50,000 shares of ATEC on 21 August. They now own 288,441 ATEC shares, or a 21% holding increase.

Keith Valentine bought 39,000 shares of ATEC on 2 August. They now own 82,140 ATEC shares, or a 90% holding increase.