Company: LGN
Filing Date: 2025-12-09
Form Type: S-1
Source: 0001193125-25-312729
Chunk: 289

Company: Legence Corp.
Filing Date: 2025-12-09
Form: S-1
Chunk 289
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 ended September 30, 2025 and 2024. As of September 30, 2025, the unrecognized compensation expense related to Performance Interests and Exit Interests is approximately $17.0 million and $14.8 million, respectively. As a liquidity event is not considered probable until it occurs, the Company does not estimate the time period for the compensation expense to be recognized. 2025 Omnibus Incentive Plan The Omnibus Incentive Plan allows the Company to issue stock options, stock appreciation rights, RSUs, performance awards and other stock-based awards or cash awards to eligible employees, non-employeedirectors and consultants. RSUs represent the right to receive shares of the Company’s Class A Common Stock upon vesting. Stock options are an option to purchase the Company’s Class A Common Stock upon vesting at an exercise price generally equal to the stock price on the date of grant. Unexercised stock options expire ten years after the grant date and, if vested, can be exercised prior to expiration, generally subject to continued employment. RSUs and stock F-35

Legence Corp. Notes to Condensed Consolidated Financial Statements - (Continued) (Unaudited) options granted to employees are subject to a graded service-based vesting condition, vesting in three equal installments over three years subject generally to continued employment. RSUs granted to our non-employeedirectors are subject to a service-based vesting condition, vesting at the earlier of one-yearor the annual stockholders’ meeting following the grant date, subject generally to continued service. The following table summarizes the RSU activity during the nine months ended September 30, 2025 (in thousands, except per share data):

| Outstanding as of December 31, 2024  |     | RSUs |       — |     | Weighted-Average      
 Grant Date Fair Value 
 per Share             |     — |
|:-------------------------------------|:----|:-----|--------:|:----|:----------------------|------:|
| Granted                              |     |      | 620,390 |     |                       | 28.00 |
| Vested                               |     |      |       — |     |                       |     — |
| Forfeited                            |     |      |       — |     |                       |     — |
| Outstanding as of September 30, 2025 |     |      | 620,390 |     | $                     | 28.00 |

As