AMPCO PITTSBURGH CORP

Q: Jun 30 2026

Q: Mar 31 2026

FY: Dec 31 2025

Q: Sep 30 2025

Q: Jun 30 2025

Q: Mar 31 2025

FY: Dec 31 2024

Q: Sep 30 2024

Q: Jun 30 2024

Q: Mar 31 2024

FY: Dec 31 2023

Q: Sep 30 2023

Q: Jun 30 2023

Q: Mar 31 2023

FY: Dec 31 2022

Q: Sep 30 2022

Q: Jun 30 2022

Q: Mar 31 2022

FY: Dec 31 2021

Q: Sep 30 2021

Regulation FD Disclosure

Results of Operations and Financial Condition

Results of Operations and Financial Condition

Results of Operations and Financial Condition

Submission of Matters to a Vote of Security Holders

Results of Operations and Financial Condition

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Regulation FD Disclosure

Results of Operations and Financial Condition

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Entry into a Material Definitive Agreement

Results of Operations and Financial Condition

Other Events

Entry into a Material Definitive Agreement

Results of Operations and Financial Condition

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Results of Operations and Financial Condition

2.02,9.01

2.02,9.01

2.02,8.01,9.01

Notice of Effectiveness

Post-effective amendment to a registration statement

Notification of removal from listing and/or registration on a national securities exchange

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Post Effective Amendment to S-8

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Primary Offering

Written communication about a business combination transaction (Rule 425)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Certification of approval for listing and registration on a national securities exchange

Registration of Securities on Exchange

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Amended Initial Registration Statement

Amended Initial Registration Statement

Registration (IPO) statement under Securities Act of 1933

Withdrawal of a registration statement

Registration (IPO) statement under Securities Act of 1933

Notice of Effectiveness

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Preliminary Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

No description available

No description available

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Preliminary Proxy Statement

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

McNair Darrell L

AMERIPRISE FINANCIAL INC

Lyon Samuel

Lyon Samuel

McBrayer Brett

Lyon Samuel

Anderson David George

McBrayer Brett

Fessenden Elizabeth Anne

McNair Darrell L

PAUL LAURENCE E

GERMAN MICHAEL I

LIEBERMAN WILLIAM K

DeMichiei Robert

McBrayer Brett

McBrayer Brett

Lyon Samuel

Anderson David George

DiSanto Frederick D.

RUTABAGA CAPITAL MANAGEMENT LLC/MA

Specialized Disclosure Report

Annual Report Scanned (Paper)

Specialized Disclosure Report

Annual Report Scanned (Paper)

Specialized Disclosure Report

Annual Report Scanned (Paper)

Specialized Disclosure Report

Annual Report Scanned (Paper)

Specialized Disclosure Report

Specialized Disclosure Report

Correspondence with the SEC

Letter from the SEC

Specialized Disclosure Report

Specialized Disclosure Report

Specialized Disclosure Report

Letter from the SEC

Correspondence with the SEC

Specialized Disclosure Report

Specialized Disclosure Report

Specialized Disclosure Report