X0306 4 2019-01-31 0 0000933974 BROOKS AUTOMATION INC BRKS 0001485448 Joseph Jason C/O BROOKS AUTOMATION, INC. 15 ELIZABETH DRIVE CHELMSFORD MA 01824 0 1 0 0 SVP, General Counsel, Secy. Common Stock 2019-01-31 4 J 0 647 25.99 A 91661 D Purchase by Reporting Person under the Brooks Automation, Inc. 2017 Employee Stock Purchase Plan. The purchase of shares was exempt from Section 16(b) of the Securities Exchange Act of 1934 (the "Exchange Act") pursuant to Rule 16b-3(c) under the Exchange Act. /s/ Jason W. Joseph 2019-02-21