| X | Filing Date | Trade Date | Ticker | Insider Name | Title | Trade Type | Price | Qty | Owned | ΔOwn | Value | 1d | 1w | 1m | 6m | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-10-24 | ATEC | Sponsel David | EVP, Sales | S - Sale | $16.18 | -70,000 | 461,861 | -13% | -$1,132,600 | ||||||
| M | 2025-09-18 | ATEC | Sponsel David | EVP, Sales | S - Sale | $15.09 | -140,000 | 531,861 | -21% | -$2,113,239 | |||||
| 2025-03-06 | ATEC | Sponsel David | EVP, Sales | S - Sale | $10.83 | -33,732 | 668,977 | -5% | -$365,318 | ||||||
| M | 2025-02-24 | ATEC | Sponsel David | EVP, Sales | S - Sale | $10.54 | -32,365 | 702,709 | -4% | -$341,062 | |||||
| 2025-02-03 | ATEC | Sponsel David | EVP, Sales | S - Sale | $11.42 | -36,256 | 735,074 | -5% | -$414,044 | ||||||
| M | 2025-01-10 | ATEC | Sponsel David | EVP, Sales | S - Sale | $10.71 | -58,521 | 502,311 | -10% | -$626,591 | |||||
| 2024-12-11 | ATEC | Sponsel David | EVP, Sales | S - Sale | $9.69 | -62,018 | 560,832 | -10% | -$600,954 | ||||||
| 2024-02-27 | ATEC | Sponsel David | EVP, Sales | S - Sale | $15.19 | -32,365 | 622,296 | -5% | -$491,624 | ||||||
| 2024-02-21 | ATEC | Sponsel David | EVP, Sales | S - Sale | $15.34 | -17,820 | 654,661 | -3% | -$273,359 | ||||||
| 2024-02-14 | ATEC | Sponsel David | EVP, Sales | S - Sale | $16.16 | -2,500 | 637,418 | 0% | -$40,400 | ||||||
| 2024-02-02 | ATEC | Sponsel David | EVP, Sales | S - Sale | $16.47 | -36,620 | 639,918 | -5% | -$603,131 | ||||||
| 2024-01-16 | ATEC | Sponsel David | EVP, Sales | S - Sale | $15.00 | -2,500 | 555,280 | 0% | -$37,500 | ||||||
| 2023-12-21 | ATEC | Sponsel David | EVP, Sales | S - Sale | $15.00 | -2,500 | 557,780 | 0% | -$37,500 | 
| A | Amended filing | 
| D | Derivative transaction in filing (usually option exercise) | 
| E | Error detected in filing | 
| M | Multiple transactions in filing; earliest reported transaction date and weighted average transaction price | 
| S - Sale | Sale of securities on an exchange or to another person | 
| S - Sale+OE | Sale of securities on an exchange or to another person (after option exercise) | 
| F - Tax | Payment of exercise price or tax liability using portion of securities received from the company | 
| P - Purchase | Purchase of securities on an exchange or from another person |