ALSN CEO awarded 144 dividend equivalent rights

Graziosi David S. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Graziosi David S. reported acquisition or exercise transactions in this Form 4 filing.

Allison Transmission Holdings Chair, President and CEO David S. Graziosi reported a compensation-related award of 144 Dividend Equivalent Rights tied to existing restricted stock units. These rights carry a stated price of $0.00 and each is economically equivalent to one share of common stock.

Following this grant, Graziosi holds 668 Dividend Equivalent Rights directly. The rights accrue on previously awarded RSUs and vest in step with those RSUs, so they function as additional stock-based compensation rather than open‑market purchases or sales.

Insider Trade Summary

Grant/Award: 144 shares

Grant/Award 1 txn

Insider Graziosi David S.

Role Chair, President and CEO

Type	Security	Shares	Price	Value
Grant/Award	Dividend Equivalent Rights	144	$0.00	$0.00

Holdings After Transaction: Dividend Equivalent Rights — 668 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: 144 rights Total Dividend Equivalent Rights after grant: 668 rights Grant price per right: $0.00 +1 more

4 metrics

Dividend Equivalent Rights granted 144 rights Grant on 2026-05-29 to CEO David S. Graziosi

Total Dividend Equivalent Rights after grant 668 rights Holdings following reported transaction

Grant price per right $0.00 Stated transaction price per Dividend Equivalent Right

Derivative transactions in filing 1 transaction Single derivative-type grant reported in Form 4

Key Terms

Dividend Equivalent Rights, restricted stock units, 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 financial

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

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

economic equivalent financial

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

FAQ

What did Allison Transmission (ALSN) CEO David S. Graziosi report in this Form 4?

David S. Graziosi reported a grant of 144 Dividend Equivalent Rights as stock-based compensation. These rights are tied to previously awarded restricted stock units and provide additional economic exposure to Allison Transmission common stock without any open-market buying or selling.

How many Dividend Equivalent Rights does the ALSN CEO hold after this transaction?

After the reported grant, David S. Graziosi holds 668 Dividend Equivalent Rights. This total reflects his accumulated rights linked to earlier restricted stock unit awards, all of which vest proportionately with the underlying RSUs over time according to their original vesting schedules.

Are the Allison Transmission Dividend Equivalent Rights an open-market purchase or sale?

No, the 144 Dividend Equivalent Rights are a grant classified as a compensation-related acquisition. They were awarded at a stated price of $0.00 per right and arise from existing RSUs, rather than from buying or selling shares in the open market.

What is a Dividend Equivalent Right in the context of ALSN’s Form 4 filing?

A Dividend Equivalent Right is a derivative tied to restricted stock units that mirrors dividends on common shares. In this filing, each right is the economic equivalent of one share of Allison Transmission common stock and vests proportionately with the related RSUs over time.

Does this Form 4 indicate any change in Allison Transmission insider ownership strategy?

The Form 4 shows a routine stock-based compensation grant, not a strategic shift. David S. Graziosi received 144 additional Dividend Equivalent Rights linked to prior RSU awards, bringing his total rights to 668, with no open-market buying or selling activity disclosed.

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Accepted by SEC EDGAR 06/02/2026 - 04:05 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^*

Graziosi David S.

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chair, President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/29/2026

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)	05/29/2026		A		144		(1)	(1)	Common Stock	144	$0	668	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	06/02/2026
	** 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)