Company: NGVT
Filing Date: 2025-03-20
Form Type: DEFA14A
Source: 0001140361-25-009731
Chunk: 0

Company: Ingevity Corp
Filing Date: 2025-03-20
Form: DEFA14A
Chunk 0
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Pursuant to §240.14a-12 |

INGEVITY CORPORATION (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 the appropriate box):

| ☒ | 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 |

Ingevity Files Definitive Proxy Statement and Issues Letter to Stockholders Board and Management Team Have Taken Significant and Decisive Action to Respond to External Market Challenges Key Transformational Changes Are Driving Strong Financial Results and Stock Price Outperformance Continued Execution of Proven Strategy Positions Ingevity to Unlock Significant Additional Stockholder Value Company Urges Stockholders to Vote “FOR” ONLYIngevity’s Highly Qualified Director Nominees on the WHITEProxy Card Launches VoteIngevity.com Providing Additional information for Stockholders NORTH CHARLESTON, S.C., Mar 20, 2025 – Ingevity Corporation (NYSE: NGVT) today announced that it has filed its definitive proxy statement with the U.S. Securities and Exchange Commission in connection with its 2025 Annual Meeting of Stockholders (the “Annual Meeting”), which will be held on April 30, 2025 at 9:30 a.m. (Eastern). All Ingevity stockholders of record as of the close of business on March 3, 2025 will be entitled to vote at the meeting. In conjunction with the filing of the definitive proxy, Ingevity’s Board of Directors issued a letter to stockholders recommending that they vote for Ingevity’s nine highly qualified