Disposed4

Arcosa, Inc.

Total Value

$3.0M

Filing Date

Oct 23, 2026

1 transactions

Trade Summary

On Oct 23, 2026, LINDSAY JOHN W, Director, reported $3.0M of Arcosa, Inc. (ACA) across 1 transactions. The filing covers Common Stock and reflects balanced net activity of $0. Reported prices ranged from $150.00. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Insider Information

Name: LINDSAY JOHN W
Role: Director
Location: DALLAS, TX

Filing Details

Filing Date: Oct 23, 2026
Transaction Date: Oct 23, 2026
Accession Number: 0001739445-26-000170
Form Type: 4

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Oct 23, 2026	Common Stock	19,931	$150.00	Disposition	$3.0M

Derivative Transactions

Date	Security	Shares	Exercise Price	Type	Value
Oct 23, 2026	ACA derivative	7,405	—	Disposition	—

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Footnotes

(F1)Disposed of pursuant to the Agreement and Plan of Merger, dated June 21, 2026, by and among CRH Americas, Inc., Neon Merger Sub, Inc., and Arcosa, Inc. (the "Merger Agreement") in exchange for a cash payment of (i) $150.00 per share of common stock and (ii) $150.00 per share of common stock underlying awards of restricted stock and restricted stock units, as applicable, plus any accrued but unpaid dividend equivalents in respect of such awards.
(F2)The Arcosa phantom stock units were accrued under the Arcosa, Inc. Deferred Plan for Director Fees (the "Plan"). Each share of phantom stock units was the economic equivalent of one share of common stock. The phantom stock units settled in cash upon the reporting person's termination of services with Arcosa.
(F3)Price determined as of September 30, 2026 pursuant to the terms of the Plan.

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^*

LINDSAY JOHN W

(Last)

(First)

(Middle)

500 N AKARD ST. SUITE 400

(Street)

DALLAS

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)
10/23/2026

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)
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)
Common Stock	10/23/2026		D		19,931	D	$150⁽¹⁾	0	D

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)
Arcosa Phantom Stock Units	$0	10/23/2026		D			7,405	⁽²⁾	⁽²⁾	Common Stock	7,405	$150⁽³⁾	0	D

Explanation of Responses:

1. Disposed of pursuant to the Agreement and Plan of Merger, dated June 21, 2026, by and among CRH Americas, Inc., Neon Merger Sub, Inc., and Arcosa, Inc. (the "Merger Agreement") in exchange for a cash payment of (i) $150.00 per share of common stock and (ii) $150.00 per share of common stock underlying awards of restricted stock and restricted stock units, as applicable, plus any accrued but unpaid dividend equivalents in respect of such awards.

2. The Arcosa phantom stock units were accrued under the Arcosa, Inc. Deferred Plan for Director Fees (the "Plan"). Each share of phantom stock units was the economic equivalent of one share of common stock. The phantom stock units settled in cash upon the reporting person's termination of services with Arcosa.

3. Price determined as of September 30, 2026 pursuant to the terms of the Plan.

Remarks:

	/s/ Mark Elmore, by Power of Attorney	10/23/2026
	** 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 as rendered by the SEC from accession 0001739445-26-000170.

Arcosa, Inc.

Trade Summary

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

SEC Form 4