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

Rhea-AI Filing Summary

David S. Graziosi, Chair, President and CEO of Allison Transmission Holdings, Inc. (ALSN), reported a non-derivative change in beneficial ownership arising from dividend equivalent rights that accrued on previously awarded restricted stock units (RSUs). The transaction date was 08/29/2025 and the filing was signed on 09/03/2025. The report shows 162 dividend equivalent rights were acquired, each representing the economic equivalent of one share of common stock, at a price of $0. After this accrual, Mr. Graziosi beneficially owned 1,090 shares of Allison Transmission common stock in a direct ownership form. The filing was submitted on a single-reporting-person Form 4.

Insights

Corporate Governance Expert

TL;DR: Routine accrual of dividend equivalents on RSUs increases direct holdings modestly; non-material for valuation.

The Form 4 discloses an automatic accrual of 162 dividend equivalent rights tied to previously granted RSUs, which vest proportionately with those RSUs. This is a common, non-cash compensation mechanic and is reported as a zero-priced acquisition because dividend equivalents are not purchased in the market. The resulting direct beneficial ownership of 1,090 shares remains modest relative to typical public-company insider holdings and does not indicate an active open-market purchase or sale. From a governance perspective, the filing fulfills Section 16 reporting obligations and provides transparency on executive compensation settlement.

Securities Compliance Analyst

TL;DR: Compliance disclosure appears complete for the reported event; no indications of atypical transactions.

The report identifies the reporting person, role, issuer ticker, transaction date, and amount acquired via dividend equivalent rights, with the transaction coded as an acquisition on 08/29/2025. The price is shown as $0 consistent with dividend equivalent accounting. The Form 4 was signed by an attorney-in-fact, which is an acceptable execution method. There are no amendment flags and the filing is by one reporting person. The disclosure satisfies the basic Section 16 requirements for this event.

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^*

Graziosi David S.

(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
X	Officer (give title below)		Other (specify below)
	Chair, President and CEO

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		162		(1)	(1)	Common Stock	162	$0	1,090	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 Allison Transmission (ALSN) insider David S. Graziosi report on Form 4?

He reported the acquisition of 162 dividend equivalent rights tied to previously awarded RSUs, increasing his direct beneficial ownership to 1,090 shares.

When was the transaction that triggered the Form 4 filing for ALSN reported?

The transaction date listed is 08/29/2025 and the Form 4 was signed on 09/03/2025.

What is the price reported for the acquired dividend equivalent rights in the ALSN Form 4?

The reported price for the dividend equivalent rights is $0, reflecting that these are non-cash accruals tied to RSUs.

Do the dividend equivalent rights reported by the ALSN insider represent actual shares?

Each dividend equivalent right is described as the economic equivalent of one share and vests proportionately with the underlying RSUs; the Form reports them as tied to common stock.

Was the Form 4 filed by more than one reporting person for ALSN?

No, the Form 4 indicates it was filed by one reporting person.