Transaction Details

Footnotes

Shares sold to cover tax obligations in connection with the settlement of vested Performance Share Units. | Shares of Class A Common Stock were exchanged at a 1:1 ratio for shares of Class B Common Stock at the election of the Reporting Person. | The shares are held by The Article 4 Trust under TXX Family Trust for which the Reporting Person serves as a trustee. | Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date. | The shares are held by The Article 2 Trust under TXX Annuity Trust #3 for which the Reporting Person serves as a trustee. | The shares are held by The Article 3 Trust under OBX Family Trust for which the Reporting Person serves as a trustee. | The shares are held by The Article 3 Trust under TBX Family Trust for which the Reporting Person serves as a trustee. | The shares are held by The Article 3 Trust under TXX Annuity Trust #1 for which the Reporting Person's spouse serves as a trustee. | The shares are held by The Article 3 Trust under TXX Annuity Trust #2 for which the Reporting Person's spouse serves as a trustee. | The shares are held by The Article 4 Trust under Library Trust for which the Reporting Person's spouse serves as a trustee.