Allison Transmission (ALSN) director receives 56 dividend equivalent rights award

Rhea-AI Filing Summary

Allison Transmission Holdings Inc director Carolann I. Haznedar reported an acquisition of derivative-based compensation. She received 56 Dividend Equivalent Rights on March 20, 2026, each tied economically to one share of common stock and accruing on previously awarded deferred stock units. Following this grant, she holds 1,496 Dividend Equivalent Rights directly. These rights vest proportionately with the related deferred stock units, making this a routine, non-cash compensation update rather than an open-market stock purchase or sale.

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^*

HAZNEDAR CAROLANN I

(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)
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		56		(1)	(1)	Common Stock	56	$0	1,496	D

Explanation of Responses:

1. The dividend equivalent rights accrued on previously awarded deferred stock units ("DSUs") and vest proportionately with the DSUs 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)

FAQ

What did Allison Transmission (ALSN) director Carolann Haznedar report in this Form 4?

Director Carolann I. Haznedar reported receiving 56 Dividend Equivalent Rights on March 20, 2026. These derivative awards are tied to previously granted deferred stock units and increase her total Dividend Equivalent Rights holdings to 1,496, reflecting routine equity-based director compensation rather than an open-market trade.

What are Dividend Equivalent Rights in the Allison Transmission (ALSN) Form 4?

Dividend Equivalent Rights are derivative awards that mirror dividends on Allison Transmission common stock. In this filing, each right is the economic equivalent of one share and accrues on previously awarded deferred stock units, vesting proportionately with those units as part of the director’s equity compensation package.

Did the Allison Transmission (ALSN) director buy or sell common stock in this Form 4?

No common stock was bought or sold. The Form 4 reports a grant of 56 Dividend Equivalent Rights to director Carolann I. Haznedar as compensation. These derivative rights track the value of Allison Transmission’s common shares rather than representing an open-market purchase or sale of stock.

How many Allison Transmission (ALSN) Dividend Equivalent Rights does the director hold after this transaction?

After the reported grant, director Carolann I. Haznedar holds 1,496 Dividend Equivalent Rights directly. These rights are tied to previously granted deferred stock units and vest over time with those units, representing ongoing equity-based compensation instead of an immediate cash or stock transaction in the market.

How do the Dividend Equivalent Rights in this Allison Transmission (ALSN) filing vest?

The Dividend Equivalent Rights vest proportionately with the deferred stock units to which they relate. As each underlying deferred stock unit vests, the associated dividend equivalent right vests too, maintaining economic parity with Allison Transmission common stock dividends for the director’s long-term compensation.