X0306 4 2019-10-31 0 0001637913 Milacron Holdings Corp. MCRN 0001768405 An-Heid Ling C/O MILACRON HOLDINGS CORP. 10200 ALLIANCE ROAD, SUITE 200 CINCINNATI OH 45242 0 1 0 0 President, Mold-Masters Common Stock 2019-10-31 4 S 0 9116 16.6869 D 291550 D This transaction was executed in multiple trades at prices ranging from $16.67 to $16.71. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. /s/Hugh O'Donnell, as Attorney-in-Fact for Ling An-Heid 2019-11-04