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

Rhea-AI Filing Summary

Allison Transmission Holdings, Inc. (ALSN) Form 4 shows an insider transaction by Thomas Eifert, listed as VP, Quality Plan & Prog Mgmt and an officer/director. On 08/29/2025 nine dividend equivalent rights that had accrued on previously awarded restricted stock units were converted into nine shares of common stock at a price of $0. After the transaction the reporting person beneficially owned 70 shares of common stock, held directly. The filing was signed by an attorney-in-fact on 09/03/2025. The form indicates a single reporting person and that the dividend equivalents vest proportionately with the related RSUs.

Positive

• Disclosure of vesting event: The Form 4 transparently reports conversion of dividend equivalent rights into shares, meeting Section 16 requirements
• Insider ownership updated: Reporting person now directly owns 70 shares, with 9 shares acquired via dividend equivalents on 08/29/2025

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine insider acquisition of 9 shares from dividend equivalents; immaterial to company capitalization but relevant for insider holdings transparency.

The Form 4 reports a small, non-cash acquisition of nine shares via dividend equivalent rights tied to RSUs, increasing direct beneficial ownership to 70 shares. This is an administrative vesting event rather than a market purchase or sale. For investors, the disclosure fulfills Section 16 transparency requirements but is not material to Allison Transmission's equity structure given the small share count disclosed.

Corporate Governance Expert

TL;DR: Compliance filing documents vesting-linked dividend equivalents; indicates proper Section 16 reporting by officer.

The statement clarifies that dividend equivalent rights accrued on RSUs vest proportionately and were converted into common stock on 08/29/2025. The filing was executed by an attorney-in-fact and identifies the reporting persons role. This is a routine disclosure demonstrating adherence to insider reporting obligations without indicating any change in control or compensation policy in the filing itself.

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^*

Eifert Thomas

(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, Quality Plan & Prog Mgmt

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		9		(1)	(1)	Common Stock	9	$0	70	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 transaction did ALSN insider Thomas Eifert report on Form 4?

The filing reports conversion of 9 dividend equivalent rights into 9 shares of common stock on 08/29/2025.

How many ALSN shares does the reporting person beneficially own after the transaction?

The reporting person beneficially owned 70 shares of Allison Transmission common stock following the reported transaction.

What is the nature of the dividend equivalent rights reported in the ALSN Form 4?

The dividend equivalent rights accrued on previously awarded RSUs and vest proportionately with those RSUs; each right is economically equivalent to one share.

Was the acquisition a purchase with cash according to the Form 4?

No. The transaction shows a price of $0, indicating the shares were received as dividend equivalents tied to RSUs rather than a cash purchase.

Who signed the ALSN Form 4 and when was it signed?

The form was signed by /s/ Preston B. Ray, attorney-in-fact on 09/03/2025.