Louis Berkman Investment CO
SEC insider (Form 3/4/5 filer). CIK 0001351834. 10% Owner at AMPCO PITTSBURGH CORP (AP). 1 reported Form 4/5 transaction since Sep 2024; latest on Nov 17, 2025. Located in PITTSBURGH, PA.
Companies Louis Berkman Investment CO has filed insider reports for
- AMPCO PITTSBURGH CORP (AP): 10% Owner
Louis Berkman Investment CO
CIK: 0001351834
Transaction Breakdown
Open Market Buys (P)1 (100.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)0 (0.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
AP
AMPCO PITTSBURGH CORP
10% Owner