Allison Transmission (ALSN) SVP reports 1,791-share insider sale under 10b5-1 plan

Rhea-AI Filing Summary

Allison Transmission Holdings Inc. insider transaction: A senior vice president (SVP, Global MSS) reported selling 1,791 shares of common stock of Allison Transmission Holdings Inc. (ALSN) on 12/31/2025 at a price of $98.79 per share. After this transaction, the reporting person beneficially owns 10,021 shares directly and 8,906 shares indirectly through the John Coll Trust dated 5/2/2005. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on November 26, 2024, which is designed to allow scheduled trades under specified conditions.

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).

X

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^*

Coll John

(Last) (First) (Middle)

C/O ALLISON TRANSMISSION HOLDINGS, INC.

ONE ALLISON WAY

(Street)

INDIANAPOLIS IN 46222

(City) (State) (Zip)

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)
	SVP, Global MSS

3. Date of Earliest Transaction (Month/Day/Year)
12/31/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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
Common Stock	12/31/2025		S		1,791(1)	D	$98.79	10,021	D
Common Stock								8,906	I	By John Coll Trust dated 5/2/2005

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

Explanation of Responses:

1. This sale was pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 26, 2024.

	/s/ Preston B. Ray, attorney-in-fact	01/02/2026
	** 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.

FAQ

What insider transaction did Allison Transmission (ALSN) disclose in this Form 4?

The filing shows that a senior vice president of Allison Transmission Holdings Inc. sold 1,791 shares of common stock on 12/31/2025 at a price of $98.79 per share, coded as a sale (S).

How many Allison Transmission (ALSN) shares does the insider own after this transaction?

Following the reported sale, the insider beneficially owns 10,021 shares directly and 8,906 shares indirectly through the John Coll Trust dated 5/2/2005.

What is the role of the reporting person at Allison Transmission (ALSN)?

The reporting person is an officer of Allison Transmission Holdings Inc., serving as SVP, Global MSS, as indicated in the relationship section of the filing.

Was the Allison Transmission (ALSN) insider sale made under a Rule 10b5-1 trading plan?

Yes. The explanation states that the sale was pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 26, 2024.

Is this Form 4 filed by one or multiple reporting persons for Allison Transmission (ALSN)?

The filing indicates that it is a Form filed by one reporting person, not a joint or group filing.

Does the Allison Transmission (ALSN) Form 4 show any derivative securities activity?

The section for Table II - Derivative Securities is present but does not list any derivative securities acquired, disposed of, or beneficially owned in the reported transaction.