[Form 4] Arcosa, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Arcosa, Inc. Group President Reid S. Essl reported a Form 4 transaction involving company common stock. On May 15, 2026, 2,206 shares of Arcosa common stock were disposed of at $124.14 per share as a tax-withholding disposition to cover tax obligations by delivering shares.

After this transaction, Essl directly owned 99,214 shares of Arcosa common stock. This filing reflects tax-related share withholding rather than an open-market purchase or sale decision.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Essl Reid S

Role Group President

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	2,206	$124.14	$274K

Holdings After Transaction: Common Stock — 99,214 shares (Direct, null)

Footnotes (1)

Key Figures

Tax-withholding shares: 2,206 shares Price per share: $124.14 per share Post-transaction holdings: 99,214 shares +1 more

4 metrics

Tax-withholding shares 2,206 shares Common Stock disposed of for tax liability on May 15, 2026

Price per share $124.14 per share Value used for the 2,206-share tax-withholding disposition

Post-transaction holdings 99,214 shares Common Stock directly owned by Reid S. Essl after the transaction

Tax-withholding transactions 1 transaction, 2,206 shares Summary of tax-withholding activity in this Form 4

Key Terms

tax-withholding disposition, Common Stock, Form 4, transaction code F

4 terms

tax-withholding disposition financial

"The transaction was a tax-withholding disposition to cover tax obligations by delivering shares."

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Common Stock financial

"2,206 shares of Arcosa common stock were disposed of at $124.14 per share."

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.

Form 4 regulatory

"Arcosa Group President Reid S. Essl reported a Form 4 transaction involving company common stock."

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.

transaction code F regulatory

"The Form 4 specifies code F, a tax-withholding disposition, meaning shares were used to satisfy tax obligations."

Form 4 Insider Transactions: What Each Field Means →

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^*

Essl Reid S

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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	05/15/2026		F		2,206	D	$124.14	99,214	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	05/18/2026
	** 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)

FAQ

What insider transaction did Arcosa (ACA) report for Reid S. Essl?

Arcosa reported that Group President Reid S. Essl had 2,206 shares of common stock disposed of at $124.14 per share. The transaction was a tax-withholding disposition, meaning shares were used to satisfy tax obligations rather than sold in the open market.

How many Arcosa (ACA) shares does Reid S. Essl hold after this Form 4?

Following the reported tax-withholding disposition, Reid S. Essl directly holds 99,214 shares of Arcosa common stock. This figure represents his post-transaction ownership and shows that he retains a substantial equity position in the company after satisfying the tax obligation.

Was the Arcosa (ACA) Form 4 transaction an open-market sale?

No, the transaction was not an open-market sale. The Form 4 specifies code F, a tax-withholding disposition, meaning 2,206 shares were delivered at $124.14 per share to cover tax liability, rather than being voluntarily sold on the open market.

What does transaction code F mean in the Arcosa (ACA) Form 4?

Transaction code F indicates a tax-withholding disposition, where shares are delivered to pay an exercise price or tax liability. In this case, 2,206 Arcosa common shares at $124.14 each were used to satisfy tax obligations, not as a discretionary sale by the insider.

What role does Reid S. Essl hold at Arcosa (ACA) in this filing?

In this Form 4, Reid S. Essl is identified as an officer of Arcosa with the title Group President. The reported transaction reflects his personal equity position in Arcosa through directly held common stock, adjusted for the tax-withholding share disposition.