Company: TDY
Filing Date: 2025-06-30
Form Type: 11-K
Source: 0001094285-25-000116
Chunk: 0

Company: TELEDYNE TECHNOLOGIES INC
Filing Date: 2025-06-30
Form: 11-K
Chunk 0
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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### FORM 11-K
(Mark One)

| ¨ |     | TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|   |     | For the transition period from_______to_________                                   |
|   |     | Commission file number 1-15295                                                     |

| A. |     | Full title of the plan and the address of the plan, if different from that of the issuer named below: |
|    |     | TELEDYNE TECHNOLOGIES INCORPORATED 401(K) PLAN                                                        |

| B. |     | Name of issuer of the securities held pursuant to the plan and the address of its principal executive office: |
|    |     | TELEDYNE TECHNOLOGIES INCORPORATED                                                                            |
|    |     | 1049 Camino Dos Rios                                                                                          |
|    |     | Thousand Oaks, California 91360-2362                                                                          |

F INANCIAL S TATEMENTS AND

S UPPLEMENTAL I NFORMATION

Teledyne Technologies Incorporated 401(k) Plan

As of December 31, 2024 and 2023

and for the Year Ended December 31, 2024

With Reports of Independent Registered Public Accounting Firms

<div align='center'>Teledyne Technologies Incorporated 401(k) Plan

Financial Statements and Supplemental Information

December 31, 2024 and 2023, and Year Ended December 31, 2024</div>

| Contents                                                               |     |    |
| Reportsof Independent Registered Public Accounting Firms               |     |  1 |
| Financial Statements:                                                  |     |    |
| Statements of Net Assets Available for Benefits                        |     |  3 |
| Statement of Changes in Net Assets Available for Benefits              |     |  4 |
| Notes to Financial Statements                                          |     |  5 |
| Supplemental Information                                               |     |    |
| Schedule H, Line 4(a)–Schedule of Delinquent Participant Contributions |     | 13 |
| Schedule H, Line 4(i) – Schedule of Assets (Held at End of Year)       |     | 14 |
| Exhibit Index                                                          |     | 15 |
| Signatures                                                             |     | 16 |

NOTE: All other schedules required