Disclosed on October 15, ITEM SECOND IRR TRUST FBO JACOB J WESTPHAL ua of JEFFREY R WESTPHAL dated October , 10% Owner at Vertex (NASDAQ:VERX), executed a substantial insider sell as per the latest SEC filing. What Happened: opted to sell 135,146 shares of Vertex, according to a Form 4 filing with the U.S. Securities and Exchange Commission on Tuesday. The transaction’s total worth stands at $5,462,273. During Wednesday’s morning session, Vertex shares up by 0.41%, currently priced at $41.43. About VertexVertex Inc is a provider of tax technology and services. Its software, content, and servic…