Results of Operations and Financial Condition. On July 23, 2026 , Knowles Corporation (the "Company") issued a press release announcing its results of operations for the quarter ended June 30, 2026 and posted on its website at http://investor.knowles.com presentation slides which summarize certain of its results of operations for the quarter ended June 30, 2026. Knowles Corporation's quarterly financial conference call and webcast will be held on July 23, 2026 . A copy of the press release is…

Results of Operations and Financial Condition. On April 23, 2026 , Knowles Corporation (the "Company") issued a press release announcing its results of operations for the quarter ended March 31, 2026 and posted on its website at http://investor.knowles.com presentation slides which summarize certain of its results of operations for the quarter ended March 31, 2026. Knowles Corporation's quarterly financial conference call and webcast will be held on April 23, 2026 . A copy of the press releas…

Daniel J. Giesecke: Grant of special equity award to the Chief Operating Officer.

Results of Operations and Financial Condition. On February 5, 2026 , Knowles Corporation issued a press release announcing its results of operations for the year and quarter ended December 31, 2025 and posted on its website at http://investor.knowles.com presentation slides which summarize certain of its results of operations for the year and quarter ended December 31, 2025. Knowles Corporation's quarterly financial conference call and webcast will be held on February 5, 2026 . A copy of the…

Results of Operations and Financial Condition. On October 23, 2025 , Knowles Corporation (the "Company") issued a press release announcing its results of operations for the quarter ended September 30, 2025 and posted on its website at http://investor.knowles.com presentation slides which summarize certain of its results of operations for the quarter ended September 30, 2025. Knowles Corporation's quarterly financial conference call and webcast will be held on October 23, 2025 . A copy of the…

Results of Operations and Financial Condition. On July 24, 2025 , Knowles Corporation (the "Company") issued a press release announcing its results of operations for the quarter ended June 30, 2025 and posted on its website at http://investor.knowles.com presentation slides which summarize certain of its results of operations for the quarter ended June 30, 2025. Knowles Corporation's quarterly financial conference call and webcast will be held on July 24, 2025 . A copy of the press release is…

Results of Operations and Financial Condition. On April 24, 2025 , Knowles Corporation (the "Company") issued a press release announcing its results of operations for the quarter ended March 31, 2025 and posted on its website at http://investor.knowles.com presentation slides which summarize certain of its results of operations for the quarter ended March 31, 2025. Knowles Corporation's quarterly financial conference call and webcast will be held on April 24, 2025 . A copy of the press releas…

CEO — Jeffrey S. Niew: The filing discloses a special equity award (compensatory arrangement) to the CEO, not a departure, appointment, or board election.

Results of Operations and Financial Condition. On February 13, 2025 , Knowles Corporation issued a press release announcing its results of operations for the year and quarter ended December 31, 2024 and posted on its website at http://investor.knowles.com presentation slides which summarize certain of its results of operations for the year and quarter ended December 31, 2024. Knowles Corporation's quarterly financial conference call and webcast will be held on February 13, 2025 . A copy of th…

Regulation FD Disclosure. On February 13, 2025, the Company announced that its Board of Directors has approved the addition of $150 million to its existing stock repurchase program, which was first adopted in February 2020 and then increased in April 2022. As of February 13, 2025, an aggregate of approximately $194 million is available under the Company's stock repurchase program, which includes this additional authorization. A copy of the press release is being furnished as Exhibit 99.1 here…

Completion of Acquisition or Disposition of Assets. On December 27, 2024, Knowles Corporation, a Delaware corporation (the “Company”, and, collectively with certain of its wholly owned subsidiaries, “Sellers”), completed the previously announced sale of certain assets and liabilities of the Company’s consumer MEMS microphones business (the “Business”) and the transfer of Business employees to Syntiant Corp., a Delaware corporation (“Buyer”), in accordance with the Purchase and Sale Agreement,…

of the Current Report on Form 8-K that was filed by the Company with the Securities and Exchange Commission on September 18, 2024 (the “Prior Report”) are incorporated herein by reference. The description of the Purchase Agreement and the Transaction included or incorporated by reference in this Report is only a summary and is qualified in its entirety by reference to the complete text of the Purchase Agreement, a copy of which was filed as Exhibit 2.1 to Prior Report, and is incorporated int…

Director — Laura Angelini: The filing discloses the election of a new independent director to the board, which is a standard governance event and not a departure of a senior executive.

Results of Operations and Financial Condition. On October 24, 2024 , Knowles Corporation (the "Company") issued a press release announcing its results of operations for the quarter ended September 30, 2024 and posted on its website at http://investor.knowles.com presentation slides which summarize certain of its results of operations for the quarter ended September 30, 2024. Knowles Corporation's quarterly financial conference call and webcast will be held on October 24, 2024 . A copy of the…

Regulation FD Disclosure. The Company issued a press release on September 19, 2024 announcing that it had entered into the Purchase Agreement described above. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. On September 19, 2024, Knowles posted to its website an investor presentation entitled "Continuing Our Transformation." The presentation may be accessed by going to Knowles' investor relations website at http://investor.knowles.com. K…

Entry into a Material Definitive Agreement. On September 18, 2024, Knowles Corporation, a Delaware corporation (the "Company", and, collectively with certain of its wholly owned subsidiaries, “Sellers”), and Syntiant Corp., a Delaware corporation ("Buyer"), entered into a Purchase and Sale Agreement (the “Purchase Agreement”). Pursuant to the Purchase Agreement, Sellers have agreed to sell and assign to Buyer, and Buyer has agreed to purchase and assume from Sellers, certain assets and liabil…

Director — Erania Brackett: A director resigned due to a change in their primary employment, which is a standard governance event with low materiality.

Results of Operations and Financial Condition. On July 31, 2024 , Knowles Corporation (the "Company") issued a press release announcing its results of operations for the quarter ended June 30, 2024 and posted on its website at http://investor.knowles.com presentation slides which summarize certain of its results of operations for the quarter ended June 30, 2024. Knowles Corporation's quarterly financial conference call and webcast will be held on July 31, 2024 . A copy of the press release is…

Director — Jason Cardew: The filing discloses the election of a new independent director to fill a vacancy created by a board size increase, which is a routine governance event.

The filing discloses the approval of an equity incentive plan, which is a compensation arrangement rather than a change in officer or director status.

Results of Operations and Financial Condition. On May 1, 2024 , Knowles Corporation (the "Company") issued a press release announcing its results of operations for the quarter ended March 31, 2024 and posted on its website at http://investor.knowles.com presentation slides which summarize certain of its results of operations for the quarter ended March 31, 2024. Knowles Corporation's quarterly financial conference call and webcast will be held on May 1, 2024 . A copy of the press release is b…