目前共有 6 家機構持有 ATCL，以下依持股市值由高至低排序。
| 主要持有機構 | 總市值 | 平均佔比 |
|---|---|---|
| HighTower Advisors, LLC | US$135.3萬 | 0.00% |
| Pinion Investment Advisors, LLC | US$108.9萬 | 0.25% |
| Private Advisor Group, LLC | US$20.2萬 | 0.00% |
| ROYAL BANK OF CANADA | US$8.6萬 | 0.00% |
| TOTH FINANCIAL ADVISORY CORP | US$243.0 | 0.00% |
| UBS Group AG | US$96.0 | 0.00% |