ALSN · Allison Transmission Holdings Inc

This option vested on February 22, 2020.

Settlement of restricted stock units ("RSUs") granted on June 4, 2024. Each RSU represents a contingent right to receive one share of Allison Transmission Holdings, Inc. ("ALSN") common stock.

Settlement of dividend equivalent rights ("DERs"). The DERs accrued when and as dividends were paid on ALSN common stock and vest proportionately with the RSU to which they relate. Each DER is the economic equivalent of one share of ALSN common stock.

Settlement of dividend equivalent rights ("DERs"). The DERs accrued when and as dividends were paid on ALSN common stock and vest proportionately with the RSU to which they relate. Each DER is the economic equivalent of one share of ALSN common stock.

Settlement of restricted stock units ("RSUs") granted on June 4, 2024. Each RSU represents a contingent right to receive one share of Allison Transmission Holdings, Inc. ("ALSN") common stock.

Represents shares withheld by ALSN to satisfy tax withholding obligations on the vesting of RSUs and DERs.

The dividend equivalent rights accrued on previously awarded deferred stock units ("DSUs") and vest proportionately with the DSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded restricted stock units ("RSUs") and vest proportionately with the RSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded restricted stock units ("RSUs") and vest proportionately with the RSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded restricted stock units ("RSUs") and vest proportionately with the RSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded deferred stock units ("DSUs") and vest proportionately with the DSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded restricted stock units ("RSUs") and vest proportionately with the RSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded deferred stock units ("DSUs") and vest proportionately with the DSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded restricted stock units ("RSUs") and vest proportionately with the RSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded restricted stock units ("RSUs") and vest proportionately with the RSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded restricted stock units ("RSUs") and vest proportionately with the RSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded restricted stock units ("RSUs") and vest proportionately with the RSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded restricted stock units ("RSUs") and vest proportionately with the RSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

The dividend equivalent rights accrued on previously awarded restricted stock units ("RSUs") and vest proportionately with the RSUs to which they relate. Each dividend equivalent right is the economic equivalent of one share of Allison Transmission Holdings, Inc. common stock.

This option vests in three equal installments beginning on April 14, 2026.

The RSUs represent the reporting person's annual equity award under the Company's Ninth Amended and Restated Non-Employee Director Compensation Policy.

Each RSU represents a contingent right to receive one share of Allison Transmission Holdings, Inc.'s (the "Company") common stock.

The number of RSUs received was calculated based on $123.02, which was the closing price of the Company's common stock on the date of grant.

The RSUs vest on the date of the next annual meeting of the stockholders of the Company. Unvested RSUs earn dividend equivalents when dividends are declared on the Company's common stock.

The RSUs represent the reporting person's annual equity award under the Company's Ninth Amended and Restated Non-Employee Director Compensation Policy.

Each RSU represents a contingent right to receive one share of the Company's common stock.

The number of RSUs received was calculated based on $123.02, which was the closing price of the Company's common stock on the date of grant.

The RSUs vest on the date of the next annual meeting of the stockholders of the Company. Unvested RSUs earn dividend equivalents when dividends are declared on the Company's common stock.

The deferred stock units ("DSUs") represent the portion of the reporting person's annual equity award under the Allison Transmission Holdings, Inc. (the "Company") Ninth Amended and Restated Non-Employee Director Compensation Policy deferred pursuant to the Company's Amended and Restated Non-Employee Director Deferred Compensation Plan.

Each DSU is the economic equivalent of one share of the Company's common stock. The DSUs become payable, in common stock, or at the Company's election cash, at the earlier of the reporting person's separation from service or a change in control. DSUs earn dividend equivalents when dividends are declared on the Company's common stock.

The number of DSUs received was calculated based on $123.02, which was the closing price of the Company's common stock on the date of grant.

The DSUs vest on the date of the next annual meeting of the stockholders of the Company.

The deferred stock units ("DSUs") represent the portion of the reporting person's annual equity award under the Allison Transmission Holdings, Inc. (the "Company") Ninth Amended and Restated Non-Employee Director Compensation Policy deferred pursuant to the Company's Amended and Restated Non-Employee Director Deferred Compensation Plan.

Each DSU is the economic equivalent of one share of the Company's common stock. The DSUs become payable, in common stock, or at the Company's election cash, at the earlier of the reporting person's separation from service or a change in control. DSUs earn dividend equivalents when dividends are declared on the Company's common stock.

The number of DSUs received was calculated based on $123.02, which was the closing price of the Company's common stock on the date of grant.

The DSUs vest on the date of the next annual meeting of the stockholders of the Company.

The RSUs represent the reporting person's annual equity award under the Company's Ninth Amended and Restated Non-Employee Director Compensation Policy.

Each RSU represents a contingent right to receive one share of Allison Transmission Holdings, Inc.'s (the "Company") common stock.

The number of RSUs received was calculated based on $123.02, which was the closing price of the Company's common stock on the date of grant.

The RSUs vest on the date of the next annual meeting of the stockholders of the Company. Unvested RSUs earn dividend equivalents when dividends are declared on the Company's common stock.

The deferred stock units ("DSUs") represent the portion of the reporting person's annual equity award under the Allison Transmission Holdings, Inc. (the "Company") Ninth Amended and Restated Non-Employee Director Compensation Policy deferred pursuant to the Company's Amended and Restated Non-Employee Director Deferred Compensation Plan.

Each DSU is the economic equivalent of one share of the Company's common stock. The DSUs become payable, in common stock, or at the Company's election cash, at the earlier of the reporting person's separation from service or a change in control. DSUs earn dividend equivalents when dividends are declared on the Company's common stock.

The number of DSUs received was calculated based on $123.02, which was the closing price of the Company's common stock on the date of grant.

The DSUs vest on the date of the next annual meeting of the stockholders of the Company.

The RSUs represent the reporting person's annual equity award under the Company's Ninth Amended and Restated Non-Employee Director Compensation Policy.

Each RSU represents a contingent right to receive one share of the Company's common stock.

The number of RSUs received was calculated based on $123.02, which was the closing price of the Company's common stock on the date of grant.

The RSUs vest on the date of the next annual meeting of the stockholders of the Company. Unvested RSUs earn dividend equivalents when dividends are declared on the Company's common stock.

The RSUs represent the reporting person's annual equity award under the Company's Ninth Amended and Restated Non-Employee Director Compensation Policy.

Each RSU represents a contingent right to receive one share of the Company's common stock.

The number of RSUs received was calculated based on $123.02, which was the closing price of the Company's common stock on the date of grant.

The RSUs vest on the date of the next annual meeting of the stockholders of the Company. Unvested RSUs earn dividend equivalents when dividends are declared on the Company's common stock.

Each dividend equivalent right is the economic equivalent of one share of the Company's common stock.

The dividend equivalent rights accrued on previously awarded RSUs and vested on May 6, 2026.

Each dividend equivalent right is the economic equivalent of one share of the Company's common stock.

The dividend equivalent rights accrued on previously awarded RSUs and vested on May 6, 2026.

Settlement of restricted stock units ("RSUs") and related dividend equivalents.

Includes 16 dividend equivalents.

Each RSU represents a contingent right to receive one share of the Company's common stock.

On May 8, 2025, the reporting person was granted 1,570 RSUs that vested on May 6, 2026.

Each dividend equivalent right is the economic equivalent of one share of the Company's common stock.

The dividend equivalent rights accrued on previously awarded RSUs and vested on May 7, 2025.

These shares represent a quarterly payment of the reporting person's annual retainer under the Allison Transmission Holdings, Inc. (the "Company") Eighth Amended and Restated Non-Employee Director Compensation Policy. The annual retainer is paid quarterly in arrears in cash or common stock at the reporting person's discretion.

The number of shares of common stock received was calculated based on $127.70 which was the closing price of the Company's common stock on the date of grant.

Settlement of restricted stock units ("RSUs") and related dividend equivalents.

Includes 16 dividend equivalents.

Each dividend equivalent right is the economic equivalent of one share of the Company's common stock.

The dividend equivalent rights accrued on previously awarded RSUs and vested on May 6, 2026.

Settlement of restricted stock units ("RSUs") and related dividend equivalents.

Includes 16 dividend equivalents.

Each RSU represents a contingent right to receive one share of Allison Transmission Holdings, Inc.'s (the "Company") common stock.

On May 8, 2025, the reporting person was granted 1,570 RSUs that vested on May 6, 2026.

Settlement of restricted stock units ("RSUs") and related dividend equivalents.

Includes 16 dividend equivalents.

Each dividend equivalent right is the economic equivalent of one share of the Company's common stock.

The dividend equivalent rights accrued on previously awarded RSUs and vested on May 6, 2026.

Each RSU represents a contingent right to receive one share of the Company's common stock.

On May 8, 2025, the reporting person was granted 1,570 RSUs that vested on May 6, 2026.

Each RSU represents a contingent right to receive one share of Allison Transmission Holdings, Inc.'s (the "Company") common stock.

On May 8, 2025, the reporting person was granted 1,570 RSUs that vested on May 6, 2026.

Settlement of restricted stock units ("RSUs") and related dividend equivalents.

Includes 16 dividend equivalents.

These shares represent a quarterly payment of the reporting person's annual retainer under the Allison Transmission Holdings, Inc. (the "Company") Eighth Amended and Restated Non-Employee Director Compensation Policy. The annual retainer is paid quarterly in arrears in cash or common stock at the reporting person's discretion.

The number of shares of common stock received was calculated based on $127.70, which was the closing price of the Company's common stock on the date of grant.