# EDGAR Filing Document

**Accession Number:** 0000006176
**File Stem:** 9999999995-26-000770
**Filing Date:** 2026-3
**Character Count:** 1443
**Document Hash:** 183101f18869d55aafcff66742f43f0c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-26-000770.hdr.sgml**: 20260312

**ACCESSION NUMBER**: 9999999995-26-000770

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260311

**DATE AS OF CHANGE**: 20260312

**EFFECTIVENESS DATE**: 20260311

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AMPCO PITTSBURGH CORP
- **CENTRAL INDEX KEY:** 0000006176
- **STANDARD INDUSTRIAL CLASSIFICATION:** PUMPS & PUMPING EQUIPMENT [3561]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 251117717
- **STATE OF INCORPORATION:** PA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-239446
- **FILM NUMBER:** 26745486

**BUSINESS ADDRESS:**
- **STREET 1:** 726 BELL AVENUE
- **STREET 2:** SUITE 301
- **CITY:** CARNEGIE
- **STATE:** PA
- **ZIP:** 15106
- **BUSINESS PHONE:** 412-456-4400

**MAIL ADDRESS:**
- **STREET 1:** 726 BELL AVENUE
- **STREET 2:** SUITE 301
- **CITY:** CARNEGIE
- **STATE:** PA
- **ZIP:** 15106

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SCREW & BOLT CORP OF AMERICA
- **DATE OF NAME CHANGE:** 19710518

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** March 11, 2026

**Accession Number:** 0001193125-26-099514

**Form Type:** POS AM

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**CIK:** 0000006176

**Company Name:** AMPCO PITTSBURGH CORP

**File Number:** 333-239446