RESULTS OF OPERATIONS AND FINANCIAL CONDITION On July 29, 2026 , Ingevity Corporation ("Ingevity") announced its preliminary financial results for the three and six months ended June 30, 2026 which are attached as Exhibit 99.1 to this Current Report on Form 8-K. Please refer to our website for additional information regarding Ingevity. Periodically we may provide other information on the investor relations page of our website. Interested parties are encouraged to visit Ingevity's website to v…

Vice President, Chief Accounting Officer and principal accounting officer — Ryan Cotterman: The company appointed a new Vice President, Chief Accounting Officer and principal accounting officer from an external position.

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On May 6, 2026 , Ingevity Corporation ("Ingevity") announced its preliminary financial results for the three months ended March 31, 2026 which are attached as Exhibit 99.1 to this Current Report on Form 8-K. Please refer to our website for additional information regarding Ingevity. Periodically we may provide other information on the investor relations page of our website. Interested parties are encouraged to visit Ingevity's website to view such…

The filing pertains to an amendment of the company's incentive plan and does not involve any changes in management or directors.

Creation of a direct financial obligation or an obligation under an off-balance sheet arrangement of a registrant The information in

ENTRY INTO A MATERIAL DEFINITIVE AGREEMENT On March 26, 2026 (the “ Closing Date ”), Ingevity Corporation (the “ Company ”), Ingevity Holdings SRL (“ Holdings ”), Ingevity UK Ltd (the “ UK Borrower ”), the other loan parties party thereto, the lenders party thereto, the issuing banks party thereto and JPMorgan Chase Bank, N.A., as administrative agent (the “ Administrative Agent ”), collateral agent and swingline lender, entered into that certain Second Amendment and Restatement Agreement (th…

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On February 25, 2026 , Ingevity Corporation ("Ingevity") announced its preliminary financial results for the three and twelve months ended December 31, 2025, which are attached as Exhibit 99.1 to this Current Report on Form 8-K. Please refer to our website for additional information regarding Ingevity. Periodically we may provide other information on the investor relations page of our website. Interested parties are encouraged to visit Ingevity's…

Director — Jean S. Blackwell, Daniel F. Sansone: Directors Jean S. Blackwell and Daniel F. Sansone will not stand for election at the 2026 Annual Meeting due to retirement.

Entry Into a Material Definitive Agreement Amendment to Asset Purchase Agreement In connection with the Closing, on January 1, 2026, the Parties entered into the Amendment, which, among other things, modified the scope of assets being transferred pursuant to the Original Purchase Agreement by excluding non-lignin dispersant products sold to existing customers for agricultural chemical applications. Except to the extent specifically amended in, or supplemented by, the Amendment, the Purchase A…

In accordance with the Purchase Agreement, on January 1, 2026, Buyer purchased substantially all of the assets and assumed and acquired certain of the rights and liabilities of Ingevity or its applicable affiliates that related to or are used in connection with (a) Ingevity’s industrial specialties product line (other than certain businesses and products more fully described in the Purchase Agreement) and (b) Ingevity’s North Charleston, South Carolina crude tall oil refinery and Ingevity’s a…

REGULATION fd DISCLOSURE On December 8, 2025, Ingevity Corporation (the “Company”) issued a press release announcing the completion of the Company’s previously disclosed portfolio review process and its exploration of strategic alternatives for its Advanced Polymer Technologies segment and Performance Chemicals Road Markings business. A copy of the press release announcing the completion of the portfolio review from the Company is furnished as Exhibit 99.1 to this Current Report on Form 8-K (…

CFO — Mary Dean Hall: The CFO is transitioning out with a named internal successor (Phillip J. Platt) and an advisory period, indicating an orderly succession rather than a sudden loss of leadership.

REGULATION FD DISCLOSURE On September 3, 2025, Ingevity Corporation, a Delaware corporation ("Ingevity", "the Company") entered into an Asset Purchase Agreement (the "Purchase Agreement") with Mainstream Pine Products, LLC, a Delaware limited liability company ("Purchaser"), pursuant to which Purchaser will purchase substantially all of the assets and assume and acquire certain of the rights and liabilities of Ingevity or its applicable affiliates that relate to or are used in connection with…

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On November 5, 2025 , Ingevity Corporation ("Ingevity") announced its preliminary financial results for the three and nine months ended September 30, 2025 which are attached as Exhibit 99.1 to this Current Report on Form 8-K. Please refer to our website for additional information regarding Ingevity. Periodically we may provide other information on the investor relations page of our website. Interested parties are encouraged to visit Ingevity's web…

Senior Vice President and President, Performance Materials — Ruth Castillo: Ms. Castillo was promoted to a senior leadership role within the company.

Entry Into a Material Definitive Agreement The Asset Purchase Agreement On September 3, 2025, Ingevity Corporation, a Delaware corporation (“Ingevity”), entered into an Asset Purchase Agreement (the “Purchase Agreement”) with Mainstream Pine Products, LLC, a Delaware limited liability company (“Purchaser”), pursuant to which Purchaser will purchase substantially all of the assets and assume and acquire certain of the rights and liabilities of Ingevity or its applicable affiliates that relate…

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On August 4, 2025 , Ingevity Corporation ("Ingevity") announced its preliminary financial results for the three and six months ended June 30, 2025 which are attached as Exhibit 99.1 to this Current Report on Form 8-K. Please refer to our website for additional information regarding Ingevity. Periodically we may provide other information on the investor relations page of our website. Interested parties are encouraged to visit Ingevity's website to…

Executive Vice President and President, Performance Materials — S. Edward Woodcock: The departure of a senior executive (EVP and President of a major business unit) without an immediate named successor represents a significant loss of leadership.

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On May 5, 2025 , Ingevity Corporation ("Ingevity") announced its preliminary financial results for the three months ended March 31, 2025 which are attached as Exhibit 99.1 to this Current Report on Form 8-K. Please refer to our website for additional information regarding Ingevity. Periodically we may provide other information on the investor relations page of our website. Interested parties are encouraged to visit Ingevity's website to view such…

Director — David H. Li: The filing discloses the election of new directors, including the current CEO, to fill vacancies created by a board expansion, which is a governance change rather than an executive departure.

Entry into a Material Definitive Agreement. On March 30, 2025, Ingevity Corporation (the “ Company ”) entered into a cooperation agreement (the “ Cooperation Agreement ”) with Vision One Fund, LP and certain of its affiliates (the “ Vision One Parties ”). Pursuant to the Cooperation Agreement, the Company agreed to (i) appoint F. David Segal to the Company’s Board of Directors (the “ Board ”) within one day of the 2025 annual meeting of stockholders (the “ 2025 Annual Meeting ”), (ii) appoint…

CEO — David H. Li: The filing announces the appointment of an external candidate, David H. Li, as the new CEO, replacing the interim CEO in an orderly succession.

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On February 18, 2025 , Ingevity Corporation ("Ingevity") announced its preliminary financial results for the three and twelve months ended December 31, 2024, which are attached as Exhibit 99.1 to this Current Report on Form 8-K. Please refer to our website for additional information regarding Ingevity. Periodically we may provide other information on the investor relations page of our website. Interested parties are encouraged to visit Ingevity's…

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On January 16, 2025, Ingevity Corporation (“Ingevity” or the “Company”) issued a press release (the “Press Release”) announcing, among other things, certain unaudited preliminary financial results for the Company’s fiscal year 2024. A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The preliminary financial results provided in the Press Release remain subject to completion of the Company’s fiscal year fin…

of this Current Report on Form 8-K, including the Press Release attached hereto as Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific…