0000899243-17-009882 4 2 20170406 20170410 Easton Loren S. 0001626074 4 34 001-36774 17754416 C/O AMERICAN SECURITIES LLC 299 PARK AVENUE, 34TH FLOOR NEW YORK NY 10171 AMERICAN SECURITIES LLC 0001475483 DE 1231 4 34 001-36774 17754418 299 PARK AVENUE NEW YORK NY 10171 212 476-8000 299 PARK AVENUE NEW YORK NY 10171 American Securities Associates VI, LLC 0001627455 DE 1231 4 34 001-36774 17754419 C/O AMERICAN SECURITIES LLC 299 PARK AVENUE, 34TH FLOOR NEW YORK NY 10171 212 476-8000 C/O AMERICAN SECURITIES LLC 299 PARK AVENUE, 34TH FLOOR NEW YORK NY 10171 American Securities Partners VI(D), L.P. 0001532681 DE 1231 4 34 001-36774 17754420 299 PARK AVENUE, 34TH FLOOR NEW YORK NY 10171 212.476.8000 299 PARK AVENUE, 34TH FLOOR NEW YORK NY 10171 American Securities Partners VI(C), L.P. 0001532680 DE 1231 4 34 001-36774 17754421 299 PARK AVENUE, 34TH FLOOR NEW YORK NY 10171 212.476.8000 299 PARK AVENUE, 34TH FLOOR NEW YORK NY 10171 American Securities Partners VI, L.P. 0001504662 DE 1231 4 34 001-36774 17754423 299 PARK AVENUE 34TH FLOOR NEW YORK NY 10171 212.476.8000 299 PARK AVENUE 34TH FLOOR NEW YORK NY 10171 ASP MD Investco LP 0001626084 DE 1231 4 34 001-36774 17754424 C/O AMERICAN SECURITIES LLC 299 PARK AVENUE, 34TH FLOOR NEW YORK NY 10171 212 476-8000 C/O AMERICAN SECURITIES LLC 299 PARK AVENUE, 34TH FLOOR NEW YORK NY 10171 Metaldyne Performance Group Inc. 0001616817 3714 471420222 DE 1231 ONE TOWNE SQUARE SUITE 550 SOUTHFIELD MI 48076 248-727-1800 ONE TOWNE SQUARE SUITE 550 SOUTHFIELD MI 48076 American Securities Partners VI(B), L.P. 0001504663 DE 1231 4 34 001-36774 17754422 299 PARK AVENUE 34TH FLOOR NEW YORK NY 10171 (212) 476-8000 299 PARK AVENUE 34TH FLOOR NEW YORK NY 10171 Penn Kevin S. 0001626076 4 34 001-36774 17754417 C/O AMERICAN SECURITIES LLC 299 PARK AVENUE, 34TH FLOOR NEW YORK NY 10171 Fisch Michael G. 0001626077 4 34 001-36774 17754415 C/O AMERICAN SECURITIES LLC 299 PARK AVENUE, 34TH FLOOR NEW YORK NY 10171 4 1 doc4.xml FORM 4 SUBMISSION EX-99.1 2 attachment1.htm EX-99.1 DOCUMENT