Company: ASTE
Filing Date: 2025-06-25
Form Type: 11-K
Source: 0000792987-25-000038
Chunk: 0

Company: ASTEC INDUSTRIES INC
Filing Date: 2025-06-25
Form: 11-K
Chunk 0
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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### FORM 11-K
<div align='center'>FOR ANNUAL REPORTS OF EMPLOYEE STOCK PURCHASE, SAVINGS

AND SIMILAR PLANS PURSUANT TO SECTION 15(d) OF THE</div>

#### SECURITIES EXCHANGE ACT OF 1934
(Mark One)

☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2024

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____ to _____.

<div align='center'>Commission File No.</div>

#### 001-11595
A. Full title of the plan and the address of the plan, if different from that of the issuer named below:

#### Astec Industries, Inc. 401(k) Retirement Plan
B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:

#### Astec Industries, Inc.

#### 1725 Shepherd Road

#### Chattanooga, TN 37421
<div align='center'>(423) 899-5898</div>

### REQUIRED INFORMATION
The following financial statements and schedules of the Astec Industries, Inc. 401(k) Retirement Plan, prepared in accordance with the financial reporting requirements of the Employee Retirement Income Security Act of 1974, as amended, are filed herewith.

#### Astec Industries, Inc. 401(k) Retirement Plan
<div align='center'>Index to Financial Statements and Supplemental Schedules on Form 11-K</div>

#### For the Year Ended December 31, 2024
|                                                                        |     | Page |
| Report of Independent Registered Public Accounting Firm                |     |    1 |
| Financial Statements                                                   |     |      |
| Statements of Net Assets Available for Benefits                        |     |    2 |
| Statement of Changes in Net Assets Available for Benefits              |     |    3 |
| Notes to Financial Statements                                          |     |    4 |
| Supplemental Schedule                                                  |     |      |
| Schedule H, Line 4a – Schedule of Delinquent Participant Contributions |     |    9 |
| Schedule H, Line 4i – Schedule of Assets (Held