| Id | Content |
|---|---|
| F1 | Dividend equivalent rights (DER) which represent a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. The DERs vest in a series of three (3) equal installments on the dates that are thirteen (13), twenty-four (24) and thirty-six (36) months following the date of grant. |
| F2 | Settlement of DER in connection with restricted stock units (RSU). The rights accrued when and as dividends were paid on the Issuer's Class A common stock and became exercisable with respect to the RSU. Each DER is the economic equivalent of one share of the Issuer's Class A common stock. |