[Form 4] Arcosa, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Lindsay John W, a director of Arcosa, Inc. (ACA), reported the accrual of 3 Arcosa Phantom Stock Units on 09/30/2025 under the company's Deferred Plan for Director Fees. Each phantom unit is the economic equivalent of one share of common stock and the units settle in cash upon the reporting person's termination of services. The filing shows an associated price of $93.71 and reports 7,392 shares beneficially owned following the reported transaction, held directly. The Form 4 was signed by power of attorney on 10/02/2025.

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).

1. Name and Address of Reporting Person^*

LINDSAY JOHN W

(Last) (First) (Middle)

500 N AKARD ST. SUITE 400

(Street)

DALLAS TX 75201

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Arcosa, Inc. [ ACA ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2025

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

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
Arcosa Phantom Stock Units	$0	09/30/2025		A		3		(1)	(1)	Common Stock	3	$93.71	7,392	D

Explanation of Responses:

1. The Arcosa Phantom Stock Units were accrued under the Arcosa, Inc. Deferred Plan for Director Fees. Each share of phantom stock units is the economic equivalent of one share of common stock. The phantom stock units settle in cash upon the reporting person's termination of services with Arcosa.

Remarks:

	/s/ Mark Elmore, by Power of Attorney	10/02/2025
	** 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 did Lindsay John W report on the Form 4 for ACA?

The filing reports the accrual of 3 Arcosa Phantom Stock Units on 09/30/2025 under the Deferred Plan for Director Fees.

How many shares does Lindsay John W beneficially own after the transaction?

The Form 4 reports 7,392 shares beneficially owned following the reported transaction, held directly.

Do the Arcosa Phantom Stock Units convert into shares?

The filing states each phantom stock unit is the economic equivalent of one share of common stock and that the units settle in cash upon termination of services.

What was the transaction date and reported price on the Form 4?

The transaction date is 09/30/2025 and the Form shows an associated price of $93.71.

Who signed the Form 4 and when?

The Form 4 was signed by Mark Elmore, by Power of Attorney on 10/02/2025.