Allison CFO granted 28 dividend equivalent rights

Allison Transmission’s CFO received additional dividend equivalent rights tied to existing RSUs, modestly increasing his derivative-based equity exposure.

Rhea-AI Filing Summary

Allison Transmission Holdings Inc (symbol: ALSN) is the issuer of record for a Form 4 filing submitted to the SEC. Mell Scott A reported acquisition or exercise transactions in this Form 4 filing.

Allison Transmission Holdings Inc (ALSN) reported that its CFO & Treasurer, Scott A. Mell, received a grant of 28 Dividend Equivalent Rights on August 31, 2026, linked to previously awarded restricted stock units. Each right is the economic equivalent of one share of common stock, increasing his directly held dividend equivalent rights to 130. The rights vest proportionately with the related RSUs, and no per-share price was paid. No Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Grant/Award: 28 shares

Grant/Award 1 txn

Insider Mell Scott A

Role CFO & Treasurer

Type	Security	Shares	Price	Value
Grant/Award	Dividend Equivalent Rights F1	28	$0.00	$0.00

Holdings After Transaction: Dividend Equivalent Rights — 130 contracts (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

Dividend Equivalent Rights granted: 28 rights Price per Dividend Equivalent Right: $0.0000 per right Dividend Equivalent Rights following transaction: 130 rights +1 more

4 metrics

Dividend Equivalent Rights granted 28 rights Grant to CFO & Treasurer Scott A. Mell on August 31, 2026

Price per Dividend Equivalent Right $0.0000 per right Reported transaction price for the August 31, 2026 grant

Dividend Equivalent Rights following transaction 130 rights Total directly held by the CFO after the August 31, 2026 grant

Underlying common shares per right 1 share equivalent per right Each Dividend Equivalent Right is the economic equivalent of one share of common stock

Key Terms

Dividend Equivalent Rights, restricted stock units ("RSUs"), economic equivalent

3 terms

Dividend Equivalent Rights financial

"The dividend equivalent rights accrued on previously awarded restricted stock units"

Dividend equivalent rights are promises that mirror the cash payments shareholders get from a company’s profits, but they are paid to holders of certain awards (like stock options or restricted stock units) rather than to actual shares. Think of them as a paycheck top‑up that matches dividends while the award is not yet a real stock, and they matter to investors because they add to employee compensation costs and potential share dilution, affecting company profitability and per‑share value.

restricted stock units ("RSUs") financial

"The dividend equivalent rights accrued on previously awarded restricted stock units"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

economic equivalent financial

"Each dividend equivalent right is the economic equivalent of one share"

FAQ

What insider transaction did ALSN report for CFO Scott A. Mell?

Allison Transmission reported that CFO & Treasurer Scott A. Mell received a grant of 28 Dividend Equivalent Rights on August 31, 2026, tied to previously awarded restricted stock units and economically equivalent to common stock.

How many Dividend Equivalent Rights does the ALSN CFO hold after this Form 4?

After the August 31, 2026 grant, the CFO directly holds 130 Dividend Equivalent Rights, each economically equivalent to one share of Allison Transmission common stock and vesting with the related restricted stock units.

What are Dividend Equivalent Rights in the ALSN Form 4 filing?

The filing explains that Dividend Equivalent Rights accrue on previously awarded RSUs, vest proportionately with those RSUs, and each is the economic equivalent of one share of Allison Transmission common stock.

Did the ALSN CFO pay anything per share for these Dividend Equivalent Rights?

No. The 28 Dividend Equivalent Rights were reported with a transaction price of $0.0000 per right, reflecting a grant or award rather than an open-market purchase.

Was the ALSN CFO’s transaction under a Rule 10b5-1 trading plan?

No. The Form 4 indicates the Rule 10b5-1 checkbox is not affirmed, and there is no footnote stating that the August 31, 2026 grant was made under a Rule 10b5-1 trading plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/02/2026 - 04:00 PM Accepted by SEC EDGAR 09/02/2026 - 04:00 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Mell Scott A

(Last) (First) (Middle)

C/O ALLISON TRANSMISSION HOLDINGS, INC.

ONE ALLISON WAY

(Street)

INDIANAPOLIS INDIANA 46222

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	CFO & Treasurer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/31/2026

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

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

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

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)	08/31/2026		A		28		(1)	(1)	Common Stock	28	$0	130	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, as attorney-in-fact	09/02/2026
	** 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.
* Form 4: SEC 1474 (03-26)