Company: NPO
Filing Date: 2025-03-25
Form Type: DEFA14A
Source: 0001140361-25-010254
Chunk: 0

Company: Enpro Inc.
Filing Date: 2025-03-25
Form: DEFA14A
Chunk 0
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box:

| ☐ | Preliminary Proxy Statement |

| ☐ | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |

| ☐ | Definitive Proxy Statement |

| ☒ | Definitive Additional Materials |

| ☐ | Soliciting Material under §240.14a-12 |

Enpro Inc. (Name of Registrant as Specified In Its Charter) (Name of Person(s) Filing Proxy Statement, if other than the Registrant) Payment of Filing Fee (Check all boxes that apply):

| ☒ | No fee required. |

| ☐ | Fee paid previously with preliminary materials. |

| ☐ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-(6)(i)(1) and 0-11 |

| Enpro Inc.                      
 5605 Carnegie Boulevard,        
 Suite 500                       
 Charlotte, North Carolina 28209 |

ENPRO INC. SUPPLEMENTAL PROXY MATERIAL For the 2025 Annual Meeting of Shareholders to be Held on April 30, 2025 March 25, 2025 Supplemental Biographical Information This information supplements the definitive proxy statement (the “Proxy Statement”) filed by Enpro Inc. (the “Company”) on March 24, 2025 relating to the Company’s 2025 Annual Meeting of Shareholders to be held on April 30, 2025 (the “Annual Meeting”). The Company is providing this supplemental information solely to update the biography of Ronald C. Keating. Mr. Keating is a current director standing for re-election to the Company’s Board of Directors at the Annual Meeting. On March 20, 2025, the board of directors of Hayward Holdings, Inc. (“Hayward”), a public company, elected Mr. Keating to serve as a director of Hayward. Important Information This supplemental proxy material should be read in conjunction with the Proxy Statement as supplemented to date, including Mr. Keating’s full biography on page