UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

AMPCO-PITTSBURGH CORPORATION

(Exact name of Registrant as Specified in Its Charter)

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(b) On November 5, 2025, Michael G. McAuley notified Ampco-Pittsburgh Corporation (the “Corporation”) of his intention to resign as Senior Vice President, Chief Financial Officer, Treasurer and Assistant Secretary of the Corporation effective December 31, 2025. Commencing January 1, 2026, Mr. McAuley is expected to remain employed by the Corporation as Strategic Advisor to the Chief Executive Officer through June 30, 2026.

(c) On November 5, 2025, the Board of Directors of the Corporation (the “Board”) appointed David G. Anderson, the President of Air & Liquid Systems Corporation, a wholly-owned subsidiary of the Corporation (“Air & Liquid Systems”), to the offices of Vice President, Chief Financial Officer, Treasurer and Assistant Secretary, effective January 1, 2026. Mr. Anderson will also retain his current role as President of Air & Liquid Systems.

The material terms of the compensation for Mr. McAuley and Mr. Anderson related to this transition will be disclosed once they have been finalized and approved.

Item 7.01 Regulation FD Disclosure.

On November 7, 2025, the Corporation issued a press release announcing the retirement of Mr. McAuley and the appointment of Mr. Anderson described under Item 5.02 above. The press release is furnished herewith as Exhibit 99.1 and incorporated herein by reference.

The information in this Item 7.01 and the information included in Exhibit 99.1 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be incorporated by reference into a filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. The information on the Corporation’s website is not part of this Current Report on Form 8-K.

FORWARD-LOOKING STATEMENTS

The Private Securities Litigation Reform Act of 1995 (the “Act”) provides a safe harbor for forward-looking statements made by us or on behalf of Ampco-Pittsburgh Corporation and its subsidiaries (collectively, “we,” “us,” “our,” or the “Corporation”). This Current Report on Form 8-K may include, but is not limited to, statements about operating performance, trends and events we expect or anticipate will occur in the future, statements about sales and production levels, timing of orders for our products, restructurings, the impact from pandemics and geopolitical conflicts, profitability and anticipated expenses, inflation, the global supply chain, tariffs and global trade, future proceeds from the exercise of outstanding warrants, and cash outflows. All statements in this document other than statements of historical fact are statements that are, or could be, deemed “forward-looking statements” within the meaning of the Act and words such as “may,” “will,” “intend,” “believe,” “expect,” “anticipate,” “estimate, “project,” “target,” “goal,” “forecast” and other terms of similar meaning that indicate future events and trends are also generally intended to identify forward-looking statements. Forward-looking statements speak only as of the date on which such statements are made, are not guarantees of future performance or expectations, and involve risks and uncertainties. For us, these risks and uncertainties include, but are not limited to: inability to maintain adequate liquidity to meet our operating cash flow requirements, repay maturing debt and meet other financial obligations; economic downturns, cyclical demand for our products and insufficient demand for our products; excess global capacity in the steel industry; inability to successfully restructure our operations and/or invest in operations that will yield the best long-term value to our shareholders; liability of our subsidiaries for claims alleging personal injury from exposure to asbestos-containing components historically used in certain products of our subsidiaries; inability to obtain necessary capital or financing on satisfactory terms to acquire capital expenditures that may be necessary to support our growth strategy; inoperability of certain equipment on which we rely; increases in commodity prices or insufficient hedging against increases in commodity prices, reductions in electricity and natural gas supply or shortages of key production materials for us or our customers; inability to satisfy the continued listing requirements of the New York Stock Exchange or the NYSE American Exchange; potential attacks on information technology infrastructure and other cyber-based business disruptions; fluctuations in the value of the U.S. dollar relative to other currencies; changes in the existing regulatory environment; consequences of pandemics and geopolitical conflicts; work stoppage or another industrial action on the part of any of our unions; failure to maintain an effective system of internal control; changes in the global economic environment, inflation, elevated interest rates, recessions or prolonged periods of slow economic growth, and global instability and actual and threatened geopolitical conflict; and those discussed more fully elsewhere in Item 1A, Risk Factors, in Part I of the Corporation’s latest Annual Report on Form 10-K and Part II of the latest Quarterly Report on Form 10-Q. We cannot guarantee any future

results, levels of activity, performance or achievements. In addition, there may be events in the future that we are not able to predict accurately or control which may cause actual results to differ materially from expectations expressed or implied by forward-looking statements. Except as required by applicable law, we assume no obligation, and disclaim any obligation, to update forward-looking statements whether as a result of new information, events or otherwise.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are furnished herewith:

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.