The Louis Berkman Investment Company 13D and 13G filings for Ampco-Pittsburgh Corp.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-11-26 6:27 pm Sale | 2025-11-17 | 13D | AMPCO PITTSBURGH CORP AP | The Louis Berkman Investment Company | 3,127,792 15.390% | -1,068,427 (-25.46%) | Filing |
| 2022-11-28 4:06 pm Purchase | 2022-11-21 | 13D | AMPCO PITTSBURGH CORP AP | The Louis Berkman Investment Company | 4,196,219 20.400% | 551,604 (+15.13%) | Filing |
| 2022-03-01 4:19 pm Sale | 2020-09-22 | 13D | AMPCO PITTSBURGH CORP AP | The Louis Berkman Investment Company | 3,644,615 18.000% | -1 (-0.00%) | Filing |