Allison CEO awarded 148 dividend equivalent rights

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

Accepted by SEC EDGAR 03/24/2026 - 04:00 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

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

Allison Transmission Holdings Inc reported that Chair, President and CEO David S. Graziosi received a grant of 148 dividend equivalent rights on March 20, 2026. These rights accrued on previously awarded restricted stock units and each one is the economic equivalent of one share of common stock, bringing his directly held dividend equivalent rights to 524.

Insider Trade Summary

Grant/Award: 148 shares

Grant/Award 1 txn

Insider Graziosi David S.

Role Chair, President and CEO

Type	Security	Shares	Price	Value
Grant/Award	Dividend Equivalent Rights	148	$0.00	$0.00

Holdings After Transaction: Dividend Equivalent Rights — 524 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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Allison Transmission (ALSN) report for David S. Graziosi?

Allison Transmission reported that David S. Graziosi received 148 dividend equivalent rights on common stock. These were granted as an acquisition, not an open-market purchase, and are tied to previously awarded restricted stock units held by the executive.

What are dividend equivalent rights in the Allison Transmission (ALSN) Form 4?

Dividend equivalent rights are instruments that mirror dividends on underlying restricted stock units. For Allison Transmission, each right is the economic equivalent of one share of common stock and vests in step with the related restricted stock units over time.

How many dividend equivalent rights does David S. Graziosi hold after this ALSN transaction?

After the reported grant, David S. Graziosi holds 524 dividend equivalent rights directly. The Form 4 shows an acquisition of 148 new rights, adding to his existing balance as part of his equity-based compensation package at Allison Transmission.

Was the Allison Transmission (ALSN) insider transaction a stock purchase or sale?

The transaction was neither an open-market stock purchase nor a sale. It was coded as an acquisition (grant) of 148 dividend equivalent rights related to restricted stock units, with no transaction price per right and no indicated cash paid in the market.

How do the dividend equivalent rights for ALSN’s CEO vest over time?

The dividend equivalent rights vest proportionately with the restricted stock units to which they relate. As each associated restricted stock unit vests, the linked dividend equivalent rights vest on the same schedule, maintaining alignment with Allison Transmission’s long-term incentive structure.

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

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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)
03/20/2026

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)	03/20/2026		A		148		(1)	(1)	Common Stock	148	$0	524	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	03/24/2026
	** 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)