X0609 4 2026-08-27 0001097149 ALIGN TECHNOLOGY INC ALGN 0001612451 Blackford Quentin S. false C/O ALIGN TECHNOLOGY, INC. 410 N. SCOTTSDALE ROAD., SUITE 1300 TEMPE AZ 852688 true false false false false Restricted Stock Units 2026-08-27 4 A false 1376 0 A Common Stock 1376 1376 D 100% of the RSUs granted on August 27, 2026 will become vested on the date of the next annual meeting of stockholders. Shares will be delivered to the Reporting Person on such vesting date assuming the continued service of the Reporting Person on such vesting date. /s/ Paul Katawicz, Attorney-in-Fact for Quentin S. Blackford 2026-08-31