X0306 4 2018-04-18 0 0000006176 AMPCO PITTSBURGH CORP AP 0001351834 Louis Berkman Investment CO 600 GRANT STREET, SUITE 3230 PITTSBURGH PA 15219-2704 0 0 1 0 COMMON STOCK 2018-04-18 2018-04-18 4 S 0 1491 11.25 D 1302350 D COMMON STOCK 2018-04-18 2018-04-18 4 S 0 3775 11.20 D 1298575 D COMMON STOCK 2018-04-18 2018-04-18 4 S 0 625 11.15 D 1297950 D COMMON STOCK 2018-04-18 2018-04-18 4 S 0 200 11.125 D 1297750 D COMMON STOCK 2018-04-18 2018-04-18 4 S 0 495 11.10 D 1297255 D COMMON STOCK 2018-04-18 2018-04-18 4 S 0 200 11.075 D 1297055 D COMMON STOCK 2018-04-18 2018-04-18 4 S 0 1100 11.05 D 1295955 D COMMON STOCK 2018-04-18 2018-04-18 4 S 0 600 11.00 D 1295355 D The transactions reported in this Form 4 were effected pursuant to a Rule 10B5-1 trading plan adopted by the reporting person on December 27, 2017 (the "Plan"). The Plan was adopted to allow members of the Berkman family to satisfy liquidity and diversification objectives. /s/ Jennifer L. Gloff, Secretary 2018-04-19