Company: ACA
Filing Date: 2025-09-24
Form Type: 8-A12B
Source: 0001739445-25-000125
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Company: Arcosa, Inc.
Filing Date: 2025-09-24
Form: 8-A12B
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### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
<div align='center'>WASHINGTON, D.C. 20549</div>

#### FORM 8-A

### FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES

#### PURSUANT TO SECTION 12(b) OR (g) OF THE

#### SECURITIES EXCHANGE ACT OF 1934

#### Arcosa, Inc.
#### ______________________________________________

<div align='center'>(Exact name of registrant as specified in its charter)</div>

| Delaware                                                       |     | 82-5339416                             |
| (State or other jurisdiction of incorporation or organization) |     | -I.R.S. Employer Identification Number |

| 500 N. Akard Street, Suite 400          
 Dallas, Texas                           |     |     75201 |
| (Address of principal executive office) |     | -Zip Code |

Securities to be registered pursuant to Section 12(b) of the Act:

| Title of each class to be so registered |     | Name of each exchange on which 
 each class is to be registered |
| Common Stock, $0.01 par value           |     | The NYSE Texas, Inc.           |

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box. ☒

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

<div align='center'>Securities Act registration statement or Regulation A offering statement file number to which this form relates:</div>

#### N/A
<div align='center'>Securities to be registered pursuant to Section 12(g) of the Act:</div>

#### N/A

### EXPLANATORY NOTE
This Registration Statement on Form 8-A (this “Form 8-A”) is being filed by Arcosa, Inc. (the “Company”), with the Securities and Exchange Commission (the “SEC”) in connection with the dual listing of its common stock, par value $0.01 per share (the “Common Stock”), with NYSE Texas, Inc. under the trading symbol “ACA.” The Common Stock