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

Rhea-AI Filing Summary

Insider acquisition via dividend equivalents: Allison Transmission Holdings, Inc. director and VP Teresa van Niekerk was credited with 10 additional shares on 08/29/2025 as dividend equivalent rights that vest with previously awarded restricted stock units (RSUs). Those 10 shares were reported as an acquisition at $0 price and increased her total beneficial ownership to 71 shares, held directly. The filing was submitted on behalf of the reporting person by an attorney-in-fact and identifies the reporting person as VP, Chief Procurement Officer and a director.

Insights

Financial Analyst

TL;DR: Small non-cash share accrual from dividend equivalents increased an insider's direct holdings modestly to 71 shares.

This Form 4 reports a non-derivative acquisition of 10 shares via dividend equivalent rights tied to previously granted RSUs. The transaction is non-cash (price $0) and reflects vesting mechanics rather than an open-market purchase or sale. The change is immaterial to Allison Transmission's capitalization and likely has no market impact. Disclosure is routine under Section 16 reporting requirements.

Corporate Governance Expert

TL;DR: Compliance disclosure of dividend-equivalent vesting; routine insider reporting with no governance red flags.

The filing transparently records the vesting-related issuance of 10 shares as dividend equivalents that accompany RSUs and increases direct beneficial ownership to 71 shares. The use of an attorney-in-fact signature and clear role identification (VP, Chief Procurement Officer and director) conforms to standard filing practices. There are no indications of policy exceptions or unusual timing in this disclosure.

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^*

van Niekerk Teresa

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Chief Procurement Officer

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		10		(1)	(1)	Common Stock	10	$0	71	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 Teresa van Niekerk report on the Form 4 for ALSN?

The Form 4 reports that Teresa van Niekerk acquired 10 shares on 08/29/2025 as dividend equivalent rights tied to RSUs, increasing her direct beneficial ownership to 71 shares.

Was the acquisition a market purchase or cash transaction?

No. The acquisition was non-cash; the 10 shares were recorded as dividend equivalent rights and the price is listed as $0.

What is the nature of the dividend equivalent rights reported?

The filing states each dividend equivalent right is the economic equivalent of one share and they vest proportionately with the related RSUs.

How is Teresa van Niekerk related to Allison Transmission (ALSN)?

She is identified as a director and as an officer with the title Vice President, Chief Procurement Officer.

Who signed the Form 4 filing?

The form was signed by Preston B. Ray, attorney-in-fact on behalf of the reporting person on 09/03/2025.