| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| ATEC | Sponsel David | EVP, SALES | Mar 11 '26 | Sale | 12.52 | 163,452 | 2,046,419 | 504,932 | Mar 13 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Feb 05 '26 | Sale | 13.79 | 60,425 | 833,261 | 349,500 | Feb 06 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Dec 10 '25 | Sale | 20.79 | 21,106 | 438,794 | 439,767 | Dec 12 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Dec 08 '25 | Sale | 21.45 | 988 | 21,193 | 460,873 | Dec 10 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Oct 24 '25 | Sale | 16.18 | 70,000 | 1,132,600 | 461,861 | Oct 28 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Sep 19 '25 | Sale | 15.34 | 2,555 | 39,194 | 531,861 | Sep 19 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Sep 18 '25 | Sale | 15.09 | 137,445 | 2,074,045 | 534,416 | Sep 19 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Mar 06 '25 | Sale | 10.83 | 33,732 | 365,318 | 668,977 | Mar 10 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Feb 25 '25 | Sale | 10.41 | 19,419 | 202,152 | 702,709 | Feb 26 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Feb 24 '25 | Sale | 10.73 | 12,946 | 138,911 | 722,128 | Feb 26 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Feb 03 '25 | Sale | 11.42 | 36,256 | 414,044 | 735,074 | Feb 04 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Jan 13 '25 | Sale | 10.71 | 58,283 | 624,211 | 502,311 | Jan 14 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Jan 10 '25 | Sale | 10.00 | 238 | 2,380 | 560,594 | Jan 14 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Dec 11 '24 | Sale | 9.69 | 62,018 | 600,954 | 560,832 | Dec 13 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Feb 27 '24 | Sale | 15.19 | 32,365 | 491,624 | 622,296 | Feb 29 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Feb 21 '24 | Sale | 15.34 | 17,820 | 273,359 | 654,661 | Feb 22 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Feb 14 '24 | Sale | 16.16 | 2,500 | 40,400 | 637,418 | Feb 15 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Feb 02 '24 | Sale | 16.47 | 36,620 | 603,131 | 639,918 | Feb 05 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Jan 16 '24 | Sale | 15.00 | 2,500 | 37,500 | 555,280 | Jan 17 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Dec 21 '23 | Sale | 15.00 | 2,500 | 37,500 | 557,780 | Dec 26 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Jun 15 '23 | Sale | 16.17 | 55,577 | 898,680 | 559,840 | Jun 20 12:00 AM |
| ATEC | Sponsel David | EVP, SALES | Mar 06 '23 | Sale | 15.82 | 16,823 | 266,140 | 719,181 | Mar 08 12:00 AM |
| ATEC | Sponsel David | director: EVP, SALES | Jan 09 '23 | Sale | 11.99 | 10,000 | 119,900 | 546,983 | Jan 10 12:00 AM |
| ATEC | Sponsel David | director: EVP, SALES | Dec 05 '22 | Sale | 9.88 | 10,000 | 98,800 | 556,983 | Dec 05 12:00 AM |
| ATEC | Sponsel David | director: EVP, SALES | Nov 07 '22 | Sale | 9.25 | 10,000 | 92,500 | 566,690 | Nov 09 12:00 AM |