Align Technology Director Andrea Saia RSU Vesting and Grant Transactions

This Form 4 filing reports equity transactions for Andrea Lynn Saia, a director of Align Technology Inc. On May 20, 2026, 1,745 restricted stock units (RSUs) granted on May 21, 2025 vested and were converted to common stock, increasing Saia's direct holdings to 17,318 shares. Simultaneously, Saia received a new grant of 1,836 RSUs that will vest on the earlier of May 20, 2027 or the date of the next annual stockholders meeting, contingent on continued service. The transactions involved no monetary consideration, as is typical for equity compensation awards. These transactions represent routine equity compensation activity for a corporate director, involving both the vesting of previously granted RSUs and the award of new RSUs as part of ongoing director compensation.