ALGN

SEC source: 0001415889-25-005336 · form4-02242025_110215.xml · derivative · entry 4

Coletti Julie Ann · CIK 0001777603 · EVP, CHIEF LEGAL & REGULATORY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 201

Underlying: Common Stock · 292 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Represents par value of ALGN common stock

F4 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date.

F4 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date.

SEC source: 0001415889-25-005336 · form4-02242025_110215.xml · derivative · entry 3

Coletti Julie Ann · CIK 0001777603 · EVP, CHIEF LEGAL & REGULATORY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 222 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Represents par value of ALGN common stock

F3 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2021 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

F3 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2021 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

SEC source: 0001415889-25-005336 · form4-02242025_110215.xml · nonDerivative · entry 2

Coletti Julie Ann · CIK 0001777603 · EVP, CHIEF LEGAL & REGULATORY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,068

SEC source: 0001415889-25-005336 · form4-02242025_110215.xml · nonDerivative · entry 1

Coletti Julie Ann · CIK 0001777603 · EVP, CHIEF LEGAL & REGULATORY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,033

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 49 shares acquired on July 31, 2024 under the ALGN Employee Stock Purchase Plan.

SEC source: 0001415889-25-005335 · form4-02242025_110223.xml · derivative · entry 9

Hockridge Stuart A · CIK 0001675043 · EVP GLOBAL HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,307

Underlying: Common Stock · 4,307 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F8 · derivative.exercise_date: Represents the number of shares which may be issued at target under the market stock unit. If performance exceeds target, the maximum number of shares that may vest is 250% of the at target amount. Vesting, if any, of the market stock unit occurs on the last day of the third year of the Performance Period (as defined in the market stock unit agreement).

F8 · derivative.expiration_date: Represents the number of shares which may be issued at target under the market stock unit. If performance exceeds target, the maximum number of shares that may vest is 250% of the at target amount. Vesting, if any, of the market stock unit occurs on the last day of the third year of the Performance Period (as defined in the market stock unit agreement).

SEC source: 0001415889-25-005335 · form4-02242025_110223.xml · derivative · entry 8

Hockridge Stuart A · CIK 0001675043 · EVP GLOBAL HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,121

Underlying: Common Stock · 2,121 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F7 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2025 will become vested on February 20, 2026 and shares will be delivered to reporting person on such date. 1/4th of restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on such vest date.

F7 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2025 will become vested on February 20, 2026 and shares will be delivered to reporting person on such date. 1/4th of restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on such vest date.

SEC source: 0001415889-25-005335 · form4-02242025_110223.xml · derivative · entry 7

Hockridge Stuart A · CIK 0001675043 · EVP GLOBAL HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,255

Underlying: Common Stock · 419 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F6 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2024 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on each such vest date.

F6 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2024 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on each such vest date.

SEC source: 0001415889-25-005335 · form4-02242025_110223.xml · derivative · entry 6

Hockridge Stuart A · CIK 0001675043 · EVP GLOBAL HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 837

Underlying: Common Stock · 419 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F5 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2023 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date.

F5 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2023 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date.

SEC source: 0001415889-25-005335 · form4-02242025_110223.xml · derivative · entry 5

Hockridge Stuart A · CIK 0001675043 · EVP GLOBAL HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,314 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F4 · derivative.exercise_date: The market stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

F4 · derivative.expiration_date: The market stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

SEC source: 0001415889-25-005335 · form4-02242025_110223.xml · derivative · entry 4

Hockridge Stuart A · CIK 0001675043 · EVP GLOBAL HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 227

Underlying: Common Stock · 227 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F3 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date.

F3 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date.

SEC source: 0001415889-25-005335 · form4-02242025_110223.xml · derivative · entry 3

Hockridge Stuart A · CIK 0001675043 · EVP GLOBAL HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 208 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F2 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2021 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

F2 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2021 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

SEC source: 0001415889-25-005335 · form4-02242025_110223.xml · nonDerivative · entry 2

Hockridge Stuart A · CIK 0001675043 · EVP GLOBAL HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,558

SEC source: 0001415889-25-005335 · form4-02242025_110223.xml · nonDerivative · entry 1

Hockridge Stuart A · CIK 0001675043 · EVP GLOBAL HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,254

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001415889-25-005334 · form4-02242025_110243.xml · derivative · entry 9

Morici John · CIK 0001689552 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,153

Underlying: Common Stock · 10,153 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents par value of ALGN common stock.

F9 · derivative.exercise_date: Represents the number of shares which may be issued at target under the market stock unit. If performance exceeds target, the maximum number of shares that may vest is 250% of the at target amount. Vesting, if any, of the market stock unit occurs on the last day of the third year of the Performance Period (as defined in the market stock unit agreement).

F9 · derivative.expiration_date: Represents the number of shares which may be issued at target under the market stock unit. If performance exceeds target, the maximum number of shares that may vest is 250% of the at target amount. Vesting, if any, of the market stock unit occurs on the last day of the third year of the Performance Period (as defined in the market stock unit agreement).

SEC source: 0001415889-25-005334 · form4-02242025_110243.xml · derivative · entry 8

Morici John · CIK 0001689552 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,001

Underlying: Common Stock · 5,001 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents par value of ALGN common stock.

F8 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2025 will become vested on February 20, 2026 and shares will be delivered to reporting person on such date. 1/4th of restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on such vest date.

F8 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2025 will become vested on February 20, 2026 and shares will be delivered to reporting person on such date. 1/4th of restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on such vest date.

SEC source: 0001415889-25-005334 · form4-02242025_110243.xml · derivative · entry 7

Morici John · CIK 0001689552 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,511

Underlying: Common Stock · 837 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Represents par value of ALGN common stock.

F7 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2024 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on each such vest date.

F7 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2024 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on each such vest date.

SEC source: 0001415889-25-005334 · form4-02242025_110243.xml · derivative · entry 6

Morici John · CIK 0001689552 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,436

Underlying: Common Stock · 718 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Represents par value of ALGN common stock.

F6 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2023 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date.

F6 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2023 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date.

SEC source: 0001415889-25-005334 · form4-02242025_110243.xml · derivative · entry 5

Morici John · CIK 0001689552 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,254 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Represents par value of ALGN common stock.

F5 · derivative.exercise_date: The market stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

F5 · derivative.expiration_date: The market stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

SEC source: 0001415889-25-005334 · form4-02242025_110243.xml · derivative · entry 4

Morici John · CIK 0001689552 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 389

Underlying: Common Stock · 389 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Represents par value of ALGN common stock.

F4 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date.

F4 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date.

SEC source: 0001415889-25-005334 · form4-02242025_110243.xml · derivative · entry 3

Morici John · CIK 0001689552 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 341 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Represents par value of ALGN common stock.

F3 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2021 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

F3 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2021 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

SEC source: 0001415889-25-005334 · form4-02242025_110243.xml · nonDerivative · entry 2

Morici John · CIK 0001689552 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,023

SEC source: 0001415889-25-005334 · form4-02242025_110243.xml · nonDerivative · entry 1

Morici John · CIK 0001689552 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,532

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 1 share acquired on July 31, 2024 under the ALGN Employee Stock Purchase Plan.

SEC source: 0001415889-25-005333 · form4-02242025_110251.xml · derivative · entry 10

HOGAN JOSEPH M · CIK 0001233163 · Director · PRESIDENT AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,969

Underlying: Common Stock · 36,969 shares

Expires not disclosed

F3 · derivative.exercise_price: Represents par value of ALGN common stock.

F10 · derivative.exercise_date: Represents the number of shares which may be issued at target under the market stock unit. If performance exceeds target, the maximum number of shares that may vest is 250% of the at target amount. Vesting, if any, of the market stock unit occurs on the last day of the third year of the Performance Period (as defined in the market stock unit agreement).

F10 · derivative.expiration_date: Represents the number of shares which may be issued at target under the market stock unit. If performance exceeds target, the maximum number of shares that may vest is 250% of the at target amount. Vesting, if any, of the market stock unit occurs on the last day of the third year of the Performance Period (as defined in the market stock unit agreement).

SEC source: 0001415889-25-005333 · form4-02242025_110251.xml · derivative · entry 9

HOGAN JOSEPH M · CIK 0001233163 · Director · PRESIDENT AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,843

Underlying: Common Stock · 15,843 shares

Expires not disclosed

F3 · derivative.exercise_price: Represents par value of ALGN common stock.

F9 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2025 will become vested on February 20, 2026 and shares will be delivered to reporting person on such date. 1/4th of restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on such vest date.

F9 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2025 will become vested on February 20, 2026 and shares will be delivered to reporting person on such date. 1/4th of restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on such vest date.

SEC source: 0001415889-25-005333 · form4-02242025_110251.xml · derivative · entry 8

HOGAN JOSEPH M · CIK 0001233163 · Director · PRESIDENT AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,191

Underlying: Common Stock · 3,397 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Represents par value of ALGN common stock.

F8 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2024 became vested on February 20, 2025 and shares were delivered to reporting person on such date. 1/4th of restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on such vest date.

F8 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2024 became vested on February 20, 2025 and shares were delivered to reporting person on such date. 1/4th of restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on such vest date.

SEC source: 0001415889-25-005333 · form4-02242025_110251.xml · derivative · entry 7

HOGAN JOSEPH M · CIK 0001233163 · Director · PRESIDENT AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,344

Underlying: Common Stock · 3,673 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Represents par value of ALGN common stock.

F7 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2023 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.

F7 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2023 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.

SEC source: 0001415889-25-005333 · form4-02242025_110251.xml · derivative · entry 6

HOGAN JOSEPH M · CIK 0001233163 · Director · PRESIDENT AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,802 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Represents par value of ALGN common stock.

F6 · derivative.exercise_date: The market stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

F6 · derivative.expiration_date: The market stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

SEC source: 0001415889-25-005333 · form4-02242025_110251.xml · derivative · entry 5

HOGAN JOSEPH M · CIK 0001233163 · Director · PRESIDENT AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,865

Underlying: Common Stock · 1,865 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Represents par value of ALGN common stock.

F5 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.

F5 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2022 became vested on February 20, 2025 and shares were delivered to reporting person. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.

SEC source: 0001415889-25-005333 · form4-02242025_110251.xml · derivative · entry 4

HOGAN JOSEPH M · CIK 0001233163 · Director · PRESIDENT AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,412 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Represents par value of ALGN common stock.

F4 · derivative.exercise_date: 1/4th of the restricted stock unit granted on February 20, 2021 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

F4 · derivative.expiration_date: 1/4th of the restricted stock unit granted on February 20, 2021 became vested on February 20, 2025 and shares were delivered to reporting person on such vest date.

SEC source: 0001415889-25-005333 · form4-02242025_110251.xml · nonDerivative · entry 2

HOGAN JOSEPH M · CIK 0001233163 · Director · PRESIDENT AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 232,636

SEC source: 0001415889-25-005333 · form4-02242025_110251.xml · nonDerivative · entry 1

HOGAN JOSEPH M · CIK 0001233163 · Director · PRESIDENT AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 241,489

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 109 shares acquired on January 31, 2025 under the ALGN Employee Stock Purchase Plan.

SEC source: 0001415889-24-021632 · form4-08192024_100859.xml · nonDerivative · entry 2

LARKIN C RAYMOND JR · CIK 0001034464 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,597

F2 · kind: The reporting person donated these shares to a donor-advised fund which will use the gifted shares for charitable purposes.

SEC source: 0001415889-24-021632 · form4-08192024_100859.xml · nonDerivative · entry 1

LARKIN C RAYMOND JR · CIK 0001034464 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,247

F1 · kind: The reporting person redeemed shares of the Issuer's common stock from an exchange fund in exchange for the cancellation of shares of the exchange fund. The issuer's common stock was valued at $235.33 per share for purposes of determining the number of shares of common stock to be redeemed.

F1 · price: The reporting person redeemed shares of the Issuer's common stock from an exchange fund in exchange for the cancellation of shares of the exchange fund. The issuer's common stock was valued at $235.33 per share for purposes of determining the number of shares of common stock to be redeemed.

SEC source: 0001415889-24-014485 · form4-05242024_080503.xml · derivative · entry 1

Myong Anne · CIK 0001783781 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,148

Underlying: Common Stock · 1,148 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F2 · derivative.exercise_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

F2 · derivative.expiration_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

SEC source: 0001415889-24-014487 · form4-05242024_080519.xml · derivative · entry 1

Saia Andrea Lynn · CIK 0001552993 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,148

Underlying: Common Stock · 1,148 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F2 · derivative.exercise_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

F2 · derivative.expiration_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

SEC source: 0001415889-24-014479 · form4-05242024_080521.xml · derivative · entry 1

SIEGEL SUSAN E · CIK 0001240363 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,148

Underlying: Common Stock · 1,148 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F2 · derivative.exercise_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

F2 · derivative.expiration_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

SEC source: 0001415889-24-014475 · form4-05242024_080501.xml · derivative · entry 1

MORROW GEORGE J · CIK 0001068754 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,148

Underlying: Common Stock · 1,148 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F2 · derivative.exercise_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

F2 · derivative.expiration_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

SEC source: 0001415889-24-014473 · form4-05242024_080514.xml · derivative · entry 1

LACOB JOSEPH · CIK 0001215490 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,148

Underlying: Common Stock · 1,148 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F2 · derivative.exercise_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

F2 · derivative.expiration_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

SEC source: 0001415889-24-014471 · form4-05242024_080522.xml · derivative · entry 1

Dallas Kevin J · CIK 0001730784 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,148

Underlying: Common Stock · 1,148 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F2 · derivative.exercise_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

F2 · derivative.expiration_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

SEC source: 0001415889-24-014465 · form4-05242024_080522.xml · derivative · entry 1

LARKIN C RAYMOND JR · CIK 0001034464 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,531

Underlying: Common Stock · 1,531 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F2 · derivative.exercise_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

F2 · derivative.expiration_date: 100% of the restricted stock units granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

SEC source: 0001415889-24-014462 · form4-05242024_080511.xml · derivative · entry 3

Poul Mojdeh · CIK 0001743760 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,148

Underlying: Common Stock · 1,148 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F3 · derivative.exercise_date: 100% of the RSUs granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

F3 · derivative.expiration_date: 100% of the RSUs granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

SEC source: 0001415889-24-014462 · form4-05242024_080511.xml · derivative · entry 2

Poul Mojdeh · CIK 0001743760 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 660 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F2 · derivative.exercise_date: 100% of the restricted stock units (RSUs) granted on December 5, 2023 became vested and exercisable on May 22, 2024 and shares were delivered to the Reporting Person.

F2 · derivative.expiration_date: 100% of the restricted stock units (RSUs) granted on December 5, 2023 became vested and exercisable on May 22, 2024 and shares were delivered to the Reporting Person.

SEC source: 0001415889-24-014462 · form4-05242024_080511.xml · nonDerivative · entry 1

Poul Mojdeh · CIK 0001743760 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 660

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001415889-24-014460 · form4-05242024_080508.xml · derivative · entry 3

Conroy Kevin T · CIK 0001306119 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,148

Underlying: Common Stock · 1,148 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F3 · derivative.exercise_date: 100% of the RSUs granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

F3 · derivative.expiration_date: 100% of the RSUs granted on May 22, 2024 will become vested on the earlier of (i) May 22, 2025 or (ii) 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.

SEC source: 0001415889-24-014460 · form4-05242024_080508.xml · derivative · entry 2

Conroy Kevin T · CIK 0001306119 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 660 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F2 · derivative.exercise_date: 100% of the restricted stock units (RSUs) granted on December 5, 2023 became vested and exercisable on May 22, 2024 and shares were delivered to the Reporting Person.

F2 · derivative.expiration_date: 100% of the restricted stock units (RSUs) granted on December 5, 2023 became vested and exercisable on May 22, 2024 and shares were delivered to the Reporting Person.

SEC source: 0001415889-24-014460 · form4-05242024_080508.xml · nonDerivative · entry 1

Conroy Kevin T · CIK 0001306119 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 660

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001415889-24-014028 · form4-05212024_110551.xml · derivative · entry 2

SIEGEL SUSAN E · CIK 0001240363 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,029 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Represents par value of ALGN common stock.

F3 · derivative.exercise_date: 100% of the restricted stock units granted on May 17, 2023 became vested on May 17, 2024 and shares were delivered to the Reporting Person.

F3 · derivative.expiration_date: 100% of the restricted stock units granted on May 17, 2023 became vested on May 17, 2024 and shares were delivered to the Reporting Person.

SEC source: 0001415889-24-014028 · form4-05212024_110551.xml · nonDerivative · entry 1

SIEGEL SUSAN E · CIK 0001240363 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,830

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: The Form 4 filed by the Reporting Person on May 19, 2023 erroneously reported that the 1,114 shares received by her in the vesting of a restricted stock unit were disposed. The number of shares beneficially owned by the Reporting Person in this report includes those 1,114 shares.

SEC source: 0001415889-24-014023 · form4-05212024_110517.xml · derivative · entry 2

Myong Anne · CIK 0001783781 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,029 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Represents par value of ALGN common stock.

F2 · derivative.exercise_date: 100% of the restricted stock unit granted on May 17, 2023 became vested on May 17, 2024 and shares were delivered to the Reporting Person.

F2 · derivative.expiration_date: 100% of the restricted stock unit granted on May 17, 2023 became vested on May 17, 2024 and shares were delivered to the Reporting Person.

SEC source: 0001415889-24-014023 · form4-05212024_110517.xml · nonDerivative · entry 1

Myong Anne · CIK 0001783781 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,937

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.