Arcosa director awarded 1,087 ACA shares

Arcosa, Inc. director Rhys J. Best received an award of 1,087 shares of common stock on May 13, 2026.

Rhea-AI Filing Summary

Arcosa, Inc. director Rhys J. Best received an award of 1,087 shares of common stock on May 13, 2026. The shares were acquired at a stated price of $0.00 per share as a grant or award, increasing his direct holdings to 60,863 shares of common stock.

Insider Trade Summary

Grant/Award: 1,087 shares

Grant/Award 1 txn

Insider BEST RHYS J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,087	$0.00	$0.00

Holdings After Transaction: Common Stock — 60,863 shares (Direct)

Key Figures

Shares awarded: 1,087 shares Award price: $0.00 per share Total holdings after: 60,863 shares +2 more

5 metrics

Shares awarded 1,087 shares Common Stock grant on May 13, 2026

Award price $0.00 per share Stated transaction price for the grant

Total holdings after 60,863 shares Common Stock directly held following transaction

Transaction code A Grant, award, or other acquisition

Ownership type Direct (D) Direct_or_indirect field for this holding

Key Terms

Grant, award, or other acquisition, Common Stock, direct ownership, Form 4

4 terms

Grant, award, or other acquisition financial

"transaction_code_description: "Grant, award, or other acquisition""

Common Stock financial

"security_title: "Common Stock" in the reported transaction"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

direct ownership financial

"ownership_type: "direct" with direct_or_indirect code "D""

Form 4 regulatory

"INSIDER FILING DATA (Form 4) header for this transaction"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Arcosa (ACA) report for Rhys J. Best?

Arcosa reported that director Rhys J. Best received an award of 1,087 shares of common stock. The transaction was coded as a grant or other acquisition and increased his directly held stake to 60,863 shares following the transaction.

Was the Arcosa (ACA) insider transaction an open-market buy or a grant?

The transaction was a grant or award acquisition, not an open-market purchase. It is coded “A” on the Form 4, with a stated price of $0.00 per share, indicating shares were awarded rather than bought in the market.

How many Arcosa (ACA) shares does Rhys J. Best own after this Form 4?

After the reported grant, Rhys J. Best directly holds 60,863 shares of Arcosa common stock. This total reflects the addition of 1,087 awarded shares on May 13, 2026, as disclosed in the Form 4 transaction details.

What does transaction code “A” mean in this Arcosa (ACA) Form 4?

Transaction code “A” on this Form 4 indicates a grant, award, or other acquisition of common stock. In this case, 1,087 shares were awarded to director Rhys J. Best at a stated price of $0.00 per share.

Is the Arcosa (ACA) Form 4 transaction by Rhys J. Best direct or indirect ownership?

The Form 4 shows the 1,087 awarded shares as direct ownership. The direct_or_indirect field is marked “D,” and total shares following the transaction, 60,863, are also reported as directly held common stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/14/2026 - 05:28 PM EDT 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^*

BEST RHYS J

(Last) (First) (Middle)

500 NORTH AKARD ST, SUITE 400

(Street)

DALLAS TEXAS 75201

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026

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
Common Stock	05/13/2026		A		1,087	A	$0	60,863	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	/s/ Mark Elmore, by Power of Attorney	05/14/2026
	** 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)