STANTON THOMAS R

SEC source: 0001209191-22-041659 · doc4.xml · derivative · entry 9

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 69,473 shares

Expires 2022-11-06

F2 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · price: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F2 · derivative.exercise_date: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · derivative.exercise_date: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

SEC source: 0001209191-22-041659 · doc4.xml · derivative · entry 8

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,893 shares

Expires 2022-11-06

F2 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · price: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F2 · derivative.exercise_date: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · derivative.exercise_date: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

SEC source: 0001209191-22-041659 · doc4.xml · derivative · entry 7

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 71,136 shares

Expires 2023-11-02

F2 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · price: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F2 · derivative.exercise_date: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · derivative.exercise_date: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

SEC source: 0001209191-22-041659 · doc4.xml · derivative · entry 6

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,230 shares

Expires 2023-11-02

F2 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · price: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F2 · derivative.exercise_date: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · derivative.exercise_date: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

SEC source: 0001209191-22-041659 · doc4.xml · derivative · entry 5

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 88,936 shares

Expires 2024-11-15

F2 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · price: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F2 · derivative.exercise_date: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · derivative.exercise_date: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

SEC source: 0001209191-22-041659 · doc4.xml · derivative · entry 4

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,271 shares

Expires 2024-11-15

F2 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · price: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F2 · derivative.exercise_date: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · derivative.exercise_date: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

SEC source: 0001209191-22-041659 · doc4.xml · derivative · entry 3

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 87,864 shares

Expires 2025-11-14

F2 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · price: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F2 · derivative.exercise_date: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · derivative.exercise_date: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

SEC source: 0001209191-22-041659 · doc4.xml · derivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,523 shares

Expires 2025-11-14

F2 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · price: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F2 · derivative.exercise_date: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · derivative.exercise_date: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

SEC source: 0001209191-22-041659 · doc4.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · shares: Includes 111,959 time-based restricted stock units ("RSUs") that settle upon vesting in shares of the Issuer's common stock.

F2 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among the Issuer, ADVA Optical Networking SE, Acorn HoldCo, Inc. (now named ADTRAN Holdings, Inc. ("Holdings")), and Acorn MergeCo, Inc., the Issuer became a wholly owned subsidiary of Holdings on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of the Issuer's common stock converted, on a one-for-one basis, into a share of Holdings' common stock; (b) each RSU measured in shares of the Issuer's common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F3 · price: (Continued from footnote 2) (c) each option to purchase the Issuer's common stock converted, on a one-for-one basis, into an option to purchase shares of Holdings' common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of the Issuer (representing the economic equivalent of one share of the Issuer's common stock) converted, on a one-for-one basis, into a share of phantom stock of Holdings on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

SEC source: 0001209191-22-041802 · doc4.xml · derivative · entry 10

STANTON THOMAS R · CIK 0001191219 · Director · Chairman, CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,297.672

Underlying: Common Stock · 158,297.672 shares

Expires not disclosed

F5 · derivative.exercise_price: Represents shares of phantom stock of the Issuer that have been acquired through the automatic reinvestment of dividends paid on the Issuer's common stock, which phantom shares become payable in cash six months after the reporting person's separation of service with the Issuer.

F1 · kind: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · kind: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F1 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · price: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F5 · derivative.exercise_date: Represents shares of phantom stock of the Issuer that have been acquired through the automatic reinvestment of dividends paid on the Issuer's common stock, which phantom shares become payable in cash six months after the reporting person's separation of service with the Issuer.

F5 · derivative.expiration_date: Represents shares of phantom stock of the Issuer that have been acquired through the automatic reinvestment of dividends paid on the Issuer's common stock, which phantom shares become payable in cash six months after the reporting person's separation of service with the Issuer.

SEC source: 0001209191-22-041802 · doc4.xml · derivative · entry 9

STANTON THOMAS R · CIK 0001191219 · Director · Chairman, CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,473

Underlying: Common Stock · 69,473 shares

Expires 2022-11-06

F1 · kind: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · kind: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F1 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · price: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F4 · derivative.exercise_date: The options granted to the reporting person vested in four annual installments beginning on the anniversary of the date of grant and were fully vested prior to the Effective Time.

SEC source: 0001209191-22-041802 · doc4.xml · derivative · entry 8

STANTON THOMAS R · CIK 0001191219 · Director · Chairman, CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,893

Underlying: Common Stock · 5,893 shares

Expires 2022-11-06

F1 · kind: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · kind: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F1 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · price: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F4 · derivative.exercise_date: The options granted to the reporting person vested in four annual installments beginning on the anniversary of the date of grant and were fully vested prior to the Effective Time.

SEC source: 0001209191-22-041802 · doc4.xml · derivative · entry 7

STANTON THOMAS R · CIK 0001191219 · Director · Chairman, CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,136

Underlying: Common Stock · 71,136 shares

Expires 2023-11-02

F1 · kind: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · kind: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F1 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · price: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F4 · derivative.exercise_date: The options granted to the reporting person vested in four annual installments beginning on the anniversary of the date of grant and were fully vested prior to the Effective Time.

SEC source: 0001209191-22-041802 · doc4.xml · derivative · entry 6

STANTON THOMAS R · CIK 0001191219 · Director · Chairman, CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,230

Underlying: Common Stock · 4,230 shares

Expires 2023-11-02

F1 · kind: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · kind: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F1 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · price: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F4 · derivative.exercise_date: The options granted to the reporting person vested in four annual installments beginning on the anniversary of the date of grant and were fully vested prior to the Effective Time.

SEC source: 0001209191-22-041802 · doc4.xml · derivative · entry 5

STANTON THOMAS R · CIK 0001191219 · Director · Chairman, CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,936

Underlying: Common Stock · 88,936 shares

Expires 2024-11-15

F1 · kind: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · kind: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F1 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · price: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F4 · derivative.exercise_date: The options granted to the reporting person vested in four annual installments beginning on the anniversary of the date of grant and were fully vested prior to the Effective Time.

SEC source: 0001209191-22-041802 · doc4.xml · derivative · entry 4

STANTON THOMAS R · CIK 0001191219 · Director · Chairman, CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,271

Underlying: Common Stock · 5,271 shares

Expires 2024-11-15

F1 · kind: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · kind: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F1 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · price: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F4 · derivative.exercise_date: The options granted to the reporting person vested in four annual installments beginning on the anniversary of the date of grant and were fully vested prior to the Effective Time.

SEC source: 0001209191-22-041802 · doc4.xml · derivative · entry 3

STANTON THOMAS R · CIK 0001191219 · Director · Chairman, CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,864

Underlying: Common Stock · 87,864 shares

Expires 2025-11-14

F1 · kind: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · kind: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F1 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · price: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F4 · derivative.exercise_date: The options granted to the reporting person vested in four annual installments beginning on the anniversary of the date of grant and were fully vested prior to the Effective Time.

SEC source: 0001209191-22-041802 · doc4.xml · derivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman, CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,523

Underlying: Common Stock · 6,523 shares

Expires 2025-11-14

F1 · kind: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · kind: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F1 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · price: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F4 · derivative.exercise_date: The options granted to the reporting person vested in four annual installments beginning on the anniversary of the date of grant and were fully vested prior to the Effective Time.

SEC source: 0001209191-22-041802 · doc4.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman, CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 637,792.09

F1 · kind: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · kind: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F3 · shares: Includes 444,193 time-based restricted stock units ("RSUs") that settle upon vesting in shares of the Issuer's common stock, 111,959 of which were converted from RSUs measured in ADTRAN, Inc.'s common stock owned by the reporting person prior to the Effective Time (as defined below), and 332,234 of which were acquired in connection with the conversion of a target number of unearned performance stock units ("PSUs") measured in shares of ADTRAN, Inc.'s common stock owned by the reporting person prior to the Effective Time (as defined below).

F1 · price: Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the "Effective Time"). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;

F2 · price: (Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.

F3 · balance_after: Includes 444,193 time-based restricted stock units ("RSUs") that settle upon vesting in shares of the Issuer's common stock, 111,959 of which were converted from RSUs measured in ADTRAN, Inc.'s common stock owned by the reporting person prior to the Effective Time (as defined below), and 332,234 of which were acquired in connection with the conversion of a target number of unearned performance stock units ("PSUs") measured in shares of ADTRAN, Inc.'s common stock owned by the reporting person prior to the Effective Time (as defined below).

SEC source: 0000926282-22-000039 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 305,558.09

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

SEC source: 0000926282-22-000039 · primary_doc.xml · derivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,297.672

Underlying: Common Stock · 738.233 shares

Expires not disclosed

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

F2 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of common stock at the cash value thereof.

F3 · derivative.exercise_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

F3 · derivative.expiration_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

SEC source: 0000926282-22-000025 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 305,208.84

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

SEC source: 0000926282-22-000022 · primary_doc.xml · derivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 157,559.439

Underlying: Common Stock · 690.085 shares

Expires not disclosed

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

F2 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of common stock at the cash value thereof.

F3 · derivative.exercise_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

F3 · derivative.expiration_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

SEC source: 0000926282-21-000081 · primary_doc.xml · derivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 157,955.354

Underlying: Common Stock · 434.911 shares

Expires not disclosed

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

F2 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of common stock at the cash value thereof.

F3 · derivative.exercise_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

F3 · derivative.expiration_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

SEC source: 0000926282-21-000081 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 304,869.41

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

SEC source: 0000926282-22-000022 · primary_doc.xml · derivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 156,869.354

Underlying: Common Stock · 244 shares

Expires not disclosed

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

F2 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of common stock at the cash value thereof.

F3 · derivative.exercise_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

F3 · derivative.expiration_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

SEC source: 0000926282-21-000066 · primary_doc.xml · derivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 157,520.443

Underlying: Common Stock · 56,584 shares

Expires not disclosed

F2 · security: Represents vesting of performance shares awarded pursuant to a grant on November 09, 2018 under the ADTRAN, Inc. 2015 Employee Stock Incentive Plan.

F3 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of common stock at the cash value thereof.

F4 · derivative.exercise_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

F4 · derivative.expiration_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

SEC source: 0000926282-21-000066 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 304,646.18

F1 · security: Represents a grant of restricted stock units that vest in four equal and annual installments beginning on the first anniversary date of the grant.

SEC source: 0000926282-21-000086 · primary_doc.xml · derivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 156,190.443

Underlying: Common Stock · 1,330 shares

Expires not disclosed

F1 · security: On November 19, 2021, the reporting person filed a Form 4 which inadvertently omitted the withholding of taxes in connection with the vesting of performance shares awarded pursuant to a grant on November 9, 2018 under the ADTRAN, Inc. 2015 Employee Stock Incentive Plan.

F2 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of common stock at the cash value thereof.

F3 · derivative.exercise_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

F3 · derivative.expiration_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

F4 · balance_after: This inadvertent error caused the Number of Derivative Securities Beneficially Owned Following Reported Transaction in Column 9 in the Form 4 filed by the reporting person on December 2, 2021 to be overstated by 1,330 shares.

SEC source: 0000926282-21-000058 · primary_doc.xml · nonDerivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 274,393.18

SEC source: 0000926282-21-000058 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 277,452.18

SEC source: 0000926282-21-000053 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 281,514.18

SEC source: 0000926282-21-000048 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 283,177.18

SEC source: 0000926282-21-000044 · primary_doc.xml · derivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,936.443

Underlying: Common Stock · 439.864 shares

Expires not disclosed

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

F2 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of common stock at the cash value thereof.

F3 · derivative.exercise_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

F3 · derivative.expiration_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

SEC source: 0000926282-21-000044 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 285,773.18

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

SEC source: 0000926282-21-000027 · primary_doc.xml · derivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,496.579

Underlying: Common Stock · 447.782 shares

Expires not disclosed

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

F2 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of common stock at the cash value thereof.

F3 · derivative.exercise_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

F3 · derivative.expiration_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

SEC source: 0000926282-21-000027 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 285,604.065

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

SEC source: 0000926282-21-000016 · primary_doc.xml · derivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,048.797

Underlying: Common Stock · 531.82 shares

Expires not disclosed

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

F2 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of common stock at the cash value thereof.

F3 · derivative.exercise_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

F3 · derivative.expiration_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

SEC source: 0000926282-21-000016 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 285,432.74

F1 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

SEC source: 0000926282-20-000047 · primary_doc.xml · derivative · entry 5

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,516.977

Underlying: Common Stock · 686.271 shares

Expires not disclosed

F2 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

F3 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of common stock at the cash value thereof.

F4 · derivative.exercise_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

F4 · derivative.expiration_date: The phantom stock becomes payable six months after the reporting person's separation of service with the Company. The reporting person may transfer the phantom stock account into an alternative investment at any time.

SEC source: 0000926282-20-000047 · primary_doc.xml · nonDerivative · entry 3

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 285,213.78

F2 · security: Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock.

SEC source: 0000926282-20-000038 · primary_doc.xml · derivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,532.706

Underlying: Common Stock · 18,702 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of common stock or the cash value thereof.

F4 · price: Upon vesting of performance shares awarded pursuant to a grant of November 11, 2017 under the ADTRAN, Inc. 2015 Employee Stock Incentive Plan, the reporting person deferred the receipt of shares of the Company's common stock and received instead shares of phantom stock pursuant to the Company's deferred compensation plan.

F3 · derivative.exercise_date: The phantom stock becomes payable 6 months after the reporting person's separation of service with the Company. The reporting person may transfer his phantom stock account into an alternative investment at any time.

F3 · derivative.expiration_date: The phantom stock becomes payable 6 months after the reporting person's separation of service with the Company. The reporting person may transfer his phantom stock account into an alternative investment at any time.

SEC source: 0000926282-20-000038 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 274,683

F1 · security: Represents a grant of restricted stock units that vest in four equal and annual installments beginning on the first anniversary date of the grant.

SEC source: 0000926282-20-000047 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 293,385

F1 · security: On November 18, 2020, the reporting person filed a Form 4 incorrectly reporting the acquisition of 18,702 shares of phantom stock on November 16, 2020, which shares should have been reported as the acquisition of shares of common stock. In addition to correcting such transaction, this amendment shows the correct number of shares of common stock (as outlined in Table I) and phantom stock (as outlined in Table II) owned by the reporting person after such transaction.

SEC source: 0000926282-20-000026 · primary_doc.xml · nonDerivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 224,437

SEC source: 0000926282-20-000026 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 230,591

SEC source: 0000926282-20-000021 · primary_doc.xml · nonDerivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 232,725

SEC source: 0000926282-20-000047 · primary_doc.xml · derivative · entry 4

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,830.706

Underlying: Common Stock · 0 shares

Expires not disclosed

F1 · derivative.exercise_price: On November 18, 2020, the reporting person filed a Form 4 incorrectly reporting the acquisition of 18,702 shares of phantom stock on November 16, 2020, which shares should have been reported as the acquisition of shares of common stock. In addition to correcting such transaction, this amendment shows the correct number of shares of common stock (as outlined in Table I) and phantom stock (as outlined in Table II) owned by the reporting person after such transaction.

F1 · shares: On November 18, 2020, the reporting person filed a Form 4 incorrectly reporting the acquisition of 18,702 shares of phantom stock on November 16, 2020, which shares should have been reported as the acquisition of shares of common stock. In addition to correcting such transaction, this amendment shows the correct number of shares of common stock (as outlined in Table I) and phantom stock (as outlined in Table II) owned by the reporting person after such transaction.

F1 · derivative.exercise_date: On November 18, 2020, the reporting person filed a Form 4 incorrectly reporting the acquisition of 18,702 shares of phantom stock on November 16, 2020, which shares should have been reported as the acquisition of shares of common stock. In addition to correcting such transaction, this amendment shows the correct number of shares of common stock (as outlined in Table I) and phantom stock (as outlined in Table II) owned by the reporting person after such transaction.

F1 · derivative.expiration_date: On November 18, 2020, the reporting person filed a Form 4 incorrectly reporting the acquisition of 18,702 shares of phantom stock on November 16, 2020, which shares should have been reported as the acquisition of shares of common stock. In addition to correcting such transaction, this amendment shows the correct number of shares of common stock (as outlined in Table I) and phantom stock (as outlined in Table II) owned by the reporting person after such transaction.

F1 · derivative.underlying_shares: On November 18, 2020, the reporting person filed a Form 4 incorrectly reporting the acquisition of 18,702 shares of phantom stock on November 16, 2020, which shares should have been reported as the acquisition of shares of common stock. In addition to correcting such transaction, this amendment shows the correct number of shares of common stock (as outlined in Table I) and phantom stock (as outlined in Table II) owned by the reporting person after such transaction.

F1 · balance_after: On November 18, 2020, the reporting person filed a Form 4 incorrectly reporting the acquisition of 18,702 shares of phantom stock on November 16, 2020, which shares should have been reported as the acquisition of shares of common stock. In addition to correcting such transaction, this amendment shows the correct number of shares of common stock (as outlined in Table I) and phantom stock (as outlined in Table II) owned by the reporting person after such transaction.

SEC source: 0000926282-20-000047 · primary_doc.xml · nonDerivative · entry 2

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 285,090

SEC source: 0000926282-20-000021 · primary_doc.xml · nonDerivative · entry 1

STANTON THOMAS R · CIK 0001191219 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 234,728