Company: LGN
Filing Date: 2025-07-15
Form Type: DRS/A
Source: 0000950123-25-006399
Chunk: 19

Company: Legence Corp.
Filing Date: 2025-07-15
Form: DRS/A
Chunk 19
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 B Common Stock, from Aggregator I. We will not receive any proceeds from the sale of additional shares in this offering by the selling stockholder. Principal Stockholders Following the completion of this offering and our Corporate Reorganization, Blackstone and the Management Members will in the aggregate own approximately % of our Class A Common Stock ( % if the underwriters’ option to purchase additional shares is exercised in full and after giving effect to the application of

9

Confidential Treatment Requested by Legence Corp.

Pursuant to 17 C.F.R. Section 200.83

the net proceeds therefrom) and 100% of our Class B Common Stock through Aggregator I and % of our Class A Common Stock through Aggregator II ( % if the underwriters’
option to purchase additional shares is exercised in full and after giving effect to the application of the net proceeds therefrom), representing, in the aggregate, approximately % of our total voting power ( % if the underwriters’
option to purchase additional shares is exercised in full and after giving effect to the application of the net proceeds therefrom). The Aggregators are controlled by Blackstone, our private equity sponsor.

Blackstone (NYSE: BX) is one of the world’s leading investment firms. Blackstone’s alternative asset management businesses include
the management of corporate private equity funds, real estate funds, hedge fund solutions, credit-oriented funds and closed-end mutual funds. Through its different businesses, Blackstone had total assets under
management of over $1.1 trillion as of September 30, 2024.

Corporate Information

Our principal executive offices are located at 1601 Las Plumas Avenue, San Jose, CA 95133, and our telephone number at that address is (833) 534-3623. Our website is available at www.wearelegence.com. We expect to make our periodic reports and other information filed with or furnished to the SEC available free of charge through our website as soon as
reasonably practicable after those reports and other information are electronically filed with or furnished to the SEC. Information on our website or any other website is not incorporated by reference herein and does not constitute a part of this
prospectus.

10

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

The Offering

| Class A Common Stock offered by us | shares (or      shares, if the underwriters exercise in full their option to