ALSN director granted dividend equivalent rights

BARBOUR D. SCOTT reported acquisition or exercise transactions in this Form 4 filing.

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Form Type

Rhea-AI Filing Summary

BARBOUR D. SCOTT reported acquisition or exercise transactions in this Form 4 filing.

Allison Transmission Holdings Inc director D. Scott Barbour reported an award of dividend equivalent rights linked to existing restricted stock units. On this Form 4, he received 3 dividend equivalent rights, each economically equal to one share of Allison Transmission common stock and granted at no cash cost.

Insider Trade Summary

Grant/Award: 3 shares

Grant/Award 1 txn

Insider BARBOUR D. SCOTT

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Dividend Equivalent Rights	3	$0.00	$0.00

Holdings After Transaction: Dividend Equivalent Rights — 3 contracts (Direct)

Footnotes (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: 3 rights Price per right: $0.0000 per right Rights held after transaction: 3 rights +1 more

4 metrics

Dividend equivalent rights granted 3 rights Grant on derivative security dated 2026-05-29

Price per right $0.0000 per right Grant/award acquisition with no cash exercise price

Rights held after transaction 3 rights Total dividend equivalent rights following transaction

Underlying common shares 3 shares equivalent Each right economically equivalent to one ALSN common share

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 ("RSUs")"

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

"accrued on previously awarded restricted stock units ("RSUs") and vest proportionately"

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

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

What insider transaction did ALSN director D. Scott Barbour report on this Form 4?

D. Scott Barbour reported receiving 3 dividend equivalent rights tied to previously awarded restricted stock units. These rights were granted at no cash cost and each is economically equivalent to one share of Allison Transmission Holdings Inc common stock.

What are dividend equivalent rights in the ALSN Form 4 filing?

Dividend equivalent rights give the holder economic value similar to dividends on underlying shares. In this filing, they accrued on existing restricted stock units and each right is the economic equivalent of one share of Allison Transmission Holdings Inc common stock as the RSUs vest.

How many securities did ALSN director Barbour hold after this dividend equivalent rights grant?

After the reported transaction, D. Scott Barbour held a total of 3 dividend equivalent rights related to Allison Transmission Holdings Inc common stock. These rights vest proportionately with the underlying restricted stock units described in the Form 4 footnote.

Did the ALSN Form 4 show an open market buy or sell of common stock?

No open market buy or sell of common stock was reported. The Form 4 reflects an acquisition coded as a grant of derivative securities, specifically dividend equivalent rights tied to previously granted restricted stock units, rather than a market trade in ALSN shares.

How do the ALSN dividend equivalent rights vest for director D. Scott Barbour?

The dividend equivalent rights vest in proportion to the restricted stock units on which they accrued. As each related restricted stock unit vests, the corresponding dividend equivalent right provides economic value equal to one share of Allison Transmission Holdings Inc common stock.

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Accepted by SEC EDGAR 06/02/2026 - 04:05 PM EDT

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^*

BARBOUR D. SCOTT

(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
	Officer (give title below)	Other (specify below)

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Dividend Equivalent Rights	⁽¹⁾	05/29/2026		A		3		⁽¹⁾	⁽¹⁾	Common Stock	3	$0	3	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)

Source: View Original Filing on SEC EDGAR