[Form 4] ALLISON TRANSMISSION HOLDINGS, INC. Insider Trading Activity

Rhea-AI Filing Summary

Perna Gustave, a director of Allison Transmission Holdings, Inc. (ALSN), reported the acquisition of dividend equivalent rights tied to previously awarded restricted stock units. The Form 4 shows a transaction dated 08/29/2025 in which 4 dividend equivalent rights were acquired at a $0 price and are treated as economic equivalents of common shares. After the reported transaction, the filing indicates 8 dividend equivalent rights/underlying shares are beneficially owned in a direct capacity. The filing explains these rights vest proportionately with the related RSUs and represent the economic equivalent of common stock.

Insights

Corporate Governance Expert

TL;DR: Routine insider equity accrual; aligns director incentives but is non-material to valuation.

The Form 4 documents the accrual and acquisition of 4 dividend equivalent rights tied to previously granted RSUs for a director, increasing direct beneficial ownership to 8 equivalents. This is a customary compensation/vesting disclosure rather than a market-moving transaction. It confirms compensation is equity-linked, which aligns management incentives with shareholders but does not materially change outstanding share count or signal a change in control or strategy.

Securities Compliance Analyst

TL;DR: Compliance filing appears complete and routine; transaction properly disclosed.

The Form 4 contains required elements: reporting person identity, issuer ticker (ALSN), transaction date (08/29/2025), transaction code indicating acquisition, amount acquired (4), zero purchase price, and the resulting beneficial ownership (8) with a direct ownership designation. The explanatory note clarifies the nature of dividend equivalent rights. Signature by an attorney-in-fact is present with a 09/03/2025 signature date. No amendments or additional complex arrangements are disclosed.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Perna Gustave

(Last) (First) (Middle)

C/O ALLISON TRANSMISSION HOLDINGS, INC.

ONE ALLISON WAY

(Street)

INDIANAPOLIS IN 46222

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Allison Transmission Holdings Inc [ ALSN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/29/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Dividend Equivalent Rights	(1)	08/29/2025		A		4		(1)	(1)	Common Stock	4	$0	8	D

Explanation of Responses:

1. 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.

	/s/ Preston B. Ray, attorney-in-fact	09/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Perna Gustave report on the Form 4 for ALSN?

The filing reports the acquisition of 4 dividend equivalent rights tied to previously awarded RSUs, increasing direct beneficial ownership to 8 equivalents.

When was the transaction reported on the ALSN Form 4?

The transaction date listed is 08/29/2025 and the form bears a signature date of 09/03/2025.

What is the economic nature of the dividend equivalent rights reported?

The filing explains each dividend equivalent right is the economic equivalent of one share of Allison Transmission common stock and vests proportionately with the related RSUs.

Was any cash paid for the reported acquisition on the Form 4?

No cash was paid; the price is listed as $0 for the acquired dividend equivalent rights.

Does the Form 4 indicate direct or indirect ownership for the reported securities?

The filing indicates direct (D) ownership for the reported dividend equivalent rights.