Exhibit A:

Mr. Rechan also directly owns a director stock option to purchase 5,000 shares
of Class A common stock with (i) an exercise price of $470.00 per share and (ii)
an expiration date of May 31, 2031. Of the 5,000 shares subject to this
option, 1,250 shares are scheduled to vest on May 31, 2022, 1,250 shares are
scheduled to vest on May 31, 2023, 1,250 shares are scheduled to vest on May 31,
2024, and 1,250 shares are scheduled to vest on May 31, 2025.