Company: LGN
Filing Date: 2025-04-30
Form Type: DRS/A
Source: 0000950123-25-003868
Chunk: 25

Company: Legence Corp.
Filing Date: 2025-04-30
Form: DRS/A
Chunk 25
---
 “Certain Relationships and Related Party Transactions—Tax Receivable Agreement” contains more information. |

| Listing and trading symbol | We intend to list our Class A Common Stock on the Nasdaq under the symbol “LGN.” |

The information above excludes shares of Class A Common Stock reserved for issuance under our long-term incentive plan that we intend to adopt in connection with the completion of this offering. Unless otherwise indicated, this prospectus reflects:

| • |     | an initial public offering price of $   per share, which is the midpoint of the estimated price range 
 set forth on the cover of this prospectus;                                                            |

| • |     | no exercise by the underwriters of their over-allotment option to purchase up to     additional                        
 shares of Class A Common Stock from us and     additional shares of Class A Common Stock from the selling stockholder; |

| • |     | the consummation of the Corporate Reorganization in connection with the consummation of this offering; and |

| • |     | the filing of our amended and restated certificate of incorporation and the adoption of our amended and restated 
 bylaws, each in connection with the closing of this offering.                                                    |

13

Confidential Treatment Requested by Legence Corp. Pursuant to 17 C.F.R. Section 200.83

Summary of Risk Factors An investment in our securities involves a high degree of risk. The occurrence of one or more of the events or circumstances described in the section titled “Risk Factors,” alone or in combination with other events or circumstances, may materially adversely affect our business, financial condition and operating results. In that event, the trading price of our securities could decline, and you could lose all or part of your investment. Such risks include, but are not limited to: Risks Related to Business

| • |     | Economic downturns in the markets in which we operate may materially and adversely affect our business because 
 our business is dependent on levels of construction activity.                                                  |

| • |     | If we do not compete and evolve effectively in our target markets, our operating results could be harmed. |

| • |     | Misconduct and errors by our employees, subcontractors, partners or third-party service providers could harm our 
 business.                                                                                                        |

| • |     | Cost overruns, inflation, delays and other risks could significantly impact our results, particularly with 
 respect to fixed-price contracts.                                                                          |

| • |     | A