Company: LGN
Filing Date: 2025-09-02
Form Type: S-1/A
Source: 0001193125-25-193346
Chunk: 208

Company: Legence Corp.
Filing Date: 2025-09-02
Form: S-1/A
Chunk 208
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ars; |

| • |     | an additional annual cash retainer of $20,000, $15,000, $15,000 and $30,000, in each case, paid in quarterly                                                                                                                              
 installments in arrears for service as the chair of the audit committee, chair of the compensation committee, chair of the nominating and corporate governance committee and lead independent director (if applicable), respectively; and |

| • |     | an additional annual cash retainer of $120,000 paid in quarterly installments in arrears for service as the chair 
 of the Board.                                                                                                     |

Company 2025 Omnibus Incentive Plan In order to incentivize our employees and other service providers following the completion of this offering, we anticipate that our board of directors will adopt the 2025 Plan for eligible employees, consultants, and directors prior to the completion of this offering. Our named executive officers will be eligible to participate in the 2025 Plan, which we expect will become effective in connection with the consummation of this offering. We anticipate that the 2025 Plan will provide for the grant of stock options, stock appreciation rights, restricted stock, restricted stock units, stock awards, dividend equivalents, other stock-based awards, cash awards, and substitute awards intended to align the interests of service providers, including our named executive officers, with those of our stockholders. Securities to be Offered Subject to adjustment in the event of certain transactions or changes of capitalization in accordance with the 2025 Plan, 8,136,296 shares of Class A Common Stock (the “Share Reserve”) will be reserved for issuance 149

pursuant to awards under the 2025 Plan (which number of shares in the Share Reserve assumes no exercise of the underwriters’ option to purchase additional shares prior to the closing of
this offering). The total number of shares reserved for issuance under the 2025 Plan will be increased annually on January 1 of each fiscal year beginning in 2026 and ending and including January 1, 2035, by the lesser of (i) 2% of the
aggregate number of shares of Common Stock, outstanding on December 31 of the immediately preceding calendar year and (ii) the number of shares of Class A Common Stock as is determined by our board of directors. No more than the initial
Share Reserve may be issued pursuant to incentive stock options. Shares of Class A Common Stock subject to an award that expires or is canceled, forfeited