Cognex Corporation 84 State Street, Boston, Massachusetts 02109 Articles 3 and 4 February 1, 2019 Articles 3 and 4 are amended by deleting in its entirety the section titled "Resolutions of Directors Establishing Series E Junior Participating Cumulative Preferred Stock" from such Articles.

Common300,000,000 $.002 Preferred350,000 $.01 Series E Pref50,000 $.01 Common300,000,000 $.002 Preferred400,000 $.01

25th April 2019

MA SOC Filing Number: 201994259120 Date: 4/26/2019 12:28:00 PM THE COMMONWEALTH OF MASSACHUSETTS I hereby certify that, upon examination of this document, duly submitted to me, it appears that the provisions of the General Laws relative to corporations have been complied with, and I hereby approve said articles; and the filing fee having been paid, said articles are deemed to have been filed with me on: April 26, 2019 12:28 PM WILLIAM FRANCIS GALVIN Secretary of the Commonwealth