Results of Operations and Financial Condition. On August 5, 2026 , Park-Ohio Holdings Corp. issued a press release announcing its quarter ended June 30, 2026 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exc…

Results of Operations and Financial Condition. On May 6, 2026 , Park-Ohio Holdings Corp. issued a press release announcing its quarter ended March 31, 2026 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Excha…

Results of Operations and Financial Condition. On March 4, 2026, Park-Ohio Holdings Corp. issued a press release announcing its year ended December 31, 2025 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exch…

Results of Operations and Financial Condition. On November 5, 2025 , Park-Ohio Holdings Corp. issued a press release announcing its quarter ended September 30, 2025 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or…

Director — Andrew C. Clarke: Election of Andrew C. Clarke as a board member.

Results of Operations and Financial Condition. On August 6, 2025 , Park-Ohio Holdings Corp. issued a press release announcing its quarter ended June 30, 2025 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exc…

Entry into a Material Definitive Agreement. On July 31, 2025, Park-Ohio Industries, Inc. (the “Issuer”), a wholly owned subsidiary of Park-Ohio Holdings Corp. (the “Company”), and its domestic subsidiaries that guarantee debt under the Seventh Amendment and Restated Credit Agreement, dated April 17, 2017, as amended (the “Revolving Credit Facility”), between the Issuer and JPMorgan Chase Bank, N.A., as administrative agent and a lender, and various financial institutions, as lenders (the “Gua…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The disclosure under

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The disclosure under

Other Events. On July 15, 2025, the Company announced that the Issuer commenced and subsequently, on July 17, 2025, priced a private offering (the “Offering”) of $350 million aggregate principal amount of 8.500% senior secured notes due 2030 (the “Notes”) to eligible purchasers. The Notes will be guaranteed on a senior secured basis by the Guarantors. The Notes will be secured by, subject in each case to certain exceptions and permitted liens, (i) a first-priority lien on the Notes Priority C…

Entry into a Material Definitive Agreement. As previously disclosed, on April 17, 2017, Park-Ohio Industries, Inc. (the “Issuer”), a wholly owned subsidiary of Park-Ohio Holdings Corp. (the “Company”), entered into the Seventh Amendment and Restated Credit Agreement, dated April 17, 2017, as amended, between the Issuer and JPMorgan Chase Bank, N.A., as administrative agent and a lender, and various financial institutions, as lenders, which provides for revolving loan borrowings up to $405.0 m…

Results of Operations and Financial Condition. On July 15, 2025, Park-Ohio Holdings Corp. (the “Company”) issued a press release announcing preliminary financial results for the quarter ended June 30, 2025. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securi…

The filing describes an amendment to the equity and incentive compensation plan, which does not involve any management changes.

Results of Operations and Financial Condition. On May 6, 2025 , Park-Ohio Holdings Corp. issued a press release announcing its quarter ended March 31, 2025 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Excha…

Results of Operations and Financial Condition. On March 5, 2025, Park-Ohio Holdings Corp. issued a press release announcing its year ended December 31, 2024 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exch…

Results of Operations and Financial Condition. On November 6, 2024 , Park-Ohio Holdings Corp. issued a press release announcing its quarter ended September 30, 2024 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or…

Unregistered Sales of Equity Securities. On August 26, 2024, Park-Ohio Holdings Corp., an Ohio corporation (the “Company”), agreed to issue and sell an aggregate of 148,612 shares of the Company’s common stock, par value $1.00 per share (the “Shares”), at a price of $30.28 per share, or approximately $4.5 million in the aggregate, pursuant to Stock Purchase Agreements, each dated August 26, 2024 (the “Stock Purchase Agreements”), between the Company and each of Matthew V. Crawford, Chairman a…

Other Events. On August 23, 2024, Park-Ohio Holdings Corp., an Ohio corporation (the “Company”), completed the issuance and sale of 341,997 shares of the Company’s common stock, par value $1.00 per share (the “Shares”), at a price of $29.24 per share pursuant to a Stock Purchase Agreement, dated August 21, 2024 (the “Offering”). The Offering was made pursuant to the Company’s effective registration statement on Form S-3 (File No. 333-279399), declared effective by the Securities and Exchange…

Results of Operations and Financial Condition. On August 7, 2024 , Park-Ohio Holdings Corp. issued a press release announcing its quarter ended June 30, 2024 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exc…

Other Events. On June 3, 2024, Park-Ohio Holdings Corp., an Ohio corporation (the “Company”), filed with the Securities and Exchange Commission (the “SEC”) a prospectus supplement (the “Prospectus Supplement”) to the prospectus forming a part of the Company’s effective shelf registration statement on Form S-3 (Registration No. 333-279399), declared effective by the SEC on May 23, 2024, with respect to the Company’s new “at the market” program (the “ATM Program”), pursuant to an equity distrib…

Results of Operations and Financial Condition. On April 29, 2024 , Park-Ohio Holdings Corp. issued a press release announcing its quarter ended March 31, 2024 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Ex…

Results of Operations and Financial Condition. On March 5, 2024, Park-Ohio Holdings Corp. issued a press release announcing its year ended December 31, 2023 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exch…

Results of Operations and Financial Condition. On November 1, 2023 , Park-Ohio Holdings Corp. issued a press release announcing its quarter ended September 30, 2023 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or…

Entry into a Material Definitive Agreement. On September 13, 2023, Park-Ohio Industries, Inc. (“Industries”), a wholly owned subsidiary of Park-Ohio Holdings Corp. (“Holdings”), and certain of Industries’ wholly owned direct and indirect subsidiaries entered into Amendment No. 8 (the “Amendment”) to the Seventh Amended and Restated Credit Agreement (the “Credit Agreement”) with the other loan parties thereto, the lenders party thereto, JPMorgan Chase Bank, N.A., as Administrative Agent, JPMor…

Results of Operations and Financial Condition. On August 2, 2023 , Park-Ohio Holdings Corp. issued a press release announcing its quarter ended June 30, 2023 results. The press release is attached hereto as Exhibit 99.1. The information contained in this Current Report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exc…