| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATH | Class A Common Shares | Gift | $0 | -2,200 | -1.6% | $0.000000 | 134,655 | 13 May 2021 | Direct | |
| transaction | ATH | Class A Common Shares | Sale | $111,834 | -1,800 | -1.3% | $62.13 | 132,855 | 17 May 2021 | Direct |
Exhibit 24.1 - Power of Attorney (incorporated by reference to the Power of Attorney filed as Exhibit 24.1 to the Form 3 filed by the Reporting Person on December 9, 2016