| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Larson John P. | President and CEO, Director | 1001 MUSTANG DR., GRAPEVINE | /s/ Chris Blevins, Attorney-in-Fact for John Larson | 29 Dec 2025 | 0001609333 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SBDS | Class A Common Stock | Options Exercise | $0 | +11,201 | +17% | $0.000000 | 77,663 | 23 Dec 2025 | Direct | F1 |
| transaction | SBDS | Class A Common Stock | Tax liability | $34,356 | -4,901 | -6.3% | $7.01 | 72,762 | 23 Dec 2025 | Direct | F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SBDS | Restricted Stock Unit | Options Exercise | $0 | -11,201 | -9.1% | $0.000000 | 112,012 | 23 Dec 2025 | Class A Common Stock | 11,201 | Direct | F1, F3 |
| Id | Content |
|---|---|
| F1 | Each restricted stock unit ("RSU") represents a contingent right to receive one share of Class A Common Stock. |
| F2 | Represents the number of shares withheld to cover tax withholding obligations in connection with the vesting of RSUs. |
| F3 | 11,201 RSUs vested on December 23, 2025 and were settled on the transaction date herein. The remaining unvested RSUs will vest in approximately equal quarterly installments, such that all vested RSUs are vested on the third anniversary of June 23, 2025, subject to the Reporting Person's continued service on the applicable vesting date. |