Ryan A. Milburn - 21 May 2025 Form 4 Insider Report for Allison Transmission Holdings Inc (ALSN)

Signature
/s/ Preston B. Ray, Attorney-in-Fact
Issuer symbol
ALSN
Transactions as of
21 May 2025
Net transactions value
-$152,153
Form type
4
Filing time
23 May 2025, 16:05:07 UTC
Previous filing
18 Mar 2025
Next filing
03 Jun 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Milburn Ryan A. VP, Engr. & Tech Dev. C/O ALLISON TRANSMISSION HOLDINGS, INC., ONE ALLISON WAY, INDIANAPOLIS /s/ Preston B. Ray, Attorney-in-Fact 23 May 2025 0001543604

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALSN Common Stock Gift $0 -2,214 -16% $0.000000 11,924 21 May 2025 Direct
transaction ALSN Common Stock Options Exercise $54,818 +1,266 +11% $43.30 13,190 21 May 2025 Direct
transaction ALSN Common Stock Options Exercise $152,108 +2,146 +16% $70.88 15,336 21 May 2025 Direct
transaction ALSN Common Stock Sale $359,079 -3,412 -22% $105.24 11,924 21 May 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ALSN Employee Stock Option (right to buy) Options Exercise $0 -1,266 -100% $0.000000 0 21 May 2025 Common Stock 1,266 $43.30 Direct F2
transaction ALSN Employee Stock Option (right to buy) Options Exercise $0 -2,146 -33% $0.000000 4,292 21 May 2025 Common Stock 2,146 $70.88 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The sale reported in this Form 4 was pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 19, 2025.
F2 This option vested on February 7, 2021.
F3 This option vests in three equal annual installments beginning on February 21, 2025.