The lawsuit filed in the US says major banks, including UBS and Goldman Sachs, intimidated and threatened potential clients. : The lawsuit filed in the US says major banks, including UBS and Goldman Sachs, intimidated and threatened potential clients  Three US pension funds sued six of the world's largest banks on Thursday, including Goldman Sachs and JP Morgan accusing them of conspiring to stifle competition in the more than $1 trillion stock lending market. In the lawsuit filed in a Manhattan federal court, the funds accused the banks of boycotting start-up lending platforms by threatening and intimidating their potential clients.