Allison CFO awarded dividend equivalent rights

Mell Scott A reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Mell Scott A reported acquisition or exercise transactions in this Form 4 filing.

Allison Transmission Holdings Inc reported that its CFO & Treasurer, Scott A. Mell, received 31 Dividend Equivalent Rights on May 29, 2026. These rights accrued on previously awarded restricted stock units and will vest in step with those RSUs.

Each dividend equivalent right is economically equal to one share of Allison Transmission common stock, providing additional stock-based compensation rather than a cash payment or open-market purchase. Following this grant, Mell holds 102 Dividend Equivalent Rights linked to common stock.

Insider Trade Summary

Grant/Award: 31 shares

Grant/Award 1 txn

Insider Mell Scott A

Role CFO & Treasurer

Type	Security	Shares	Price	Value
Grant/Award	Dividend Equivalent Rights	31	$0.00	$0.00

Holdings After Transaction: Dividend Equivalent Rights — 102 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: 31 rights Total Dividend Equivalent Rights after grant: 102 rights Underlying common stock equivalent: 1 share per right +1 more

4 metrics

Dividend Equivalent Rights granted 31 rights Award to CFO on May 29, 2026

Total Dividend Equivalent Rights after grant 102 rights Held by CFO following transaction

Underlying common stock equivalent 1 share per right Each dividend equivalent right matches one common share economically

Transaction price per right $0.0000 per right Non-cash grant of derivative rights

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 ("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 ("RSUs") financial

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

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 of Allison Transmission Holdings, Inc. common stock"

FAQ

What insider transaction did Allison Transmission (ALSN) report for Scott A. Mell?

Allison Transmission reported that CFO & Treasurer Scott A. Mell received 31 Dividend Equivalent Rights on May 29, 2026. These rights are stock-based compensation tied to earlier RSU awards, not an open-market share purchase or sale.

How many Dividend Equivalent Rights does the Allison (ALSN) CFO hold after this grant?

After the May 29, 2026 grant, Allison Transmission’s CFO Scott A. Mell holds 102 Dividend Equivalent Rights. This total reflects cumulative rights linked to his existing RSU awards, each economically equivalent to one share of common stock.

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

Dividend Equivalent Rights in this filing are awards that accrue on previously granted restricted stock units and vest proportionately with those RSUs. Each right is economically equal to one share of Allison Transmission common stock, providing additional equity-linked compensation.

Did the Allison Transmission (ALSN) CFO buy or sell shares in this Form 4?

The Form 4 shows no open-market buy or sell by the CFO. Instead, Scott A. Mell received 31 Dividend Equivalent Rights as a grant tied to existing RSUs, increasing his equity-linked compensation position without a market trade.

How are the new Dividend Equivalent Rights for Allison (ALSN) CFO scheduled to vest?

The Dividend Equivalent Rights granted to the Allison Transmission CFO vest proportionately with the restricted stock units to which they relate. Their vesting schedule therefore follows the same timetable as those underlying RSU awards, according to the filing footnote.

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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^*

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)
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		31		(1)	(1)	Common Stock	31	$0	102	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	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)