June 6 (Reuters) - The following are the top stories in the Wall Street Journal. http://on.wsj.com/2r0csRZ- Drugmaker Perrigo Co announced that current chief executive John Hendrickson is retiring. The step marks an escalation in a dispute over Qatar's alleged support for Islamist groups in the region. http://on.wsj.com/2r0dld1- Germany's third-largest shipping firm, Rickmers Holding AG, filed for insolvency after it was cut loose by one of the country's biggest shipping lenders, a sign Germany's long-simmering shipping crisis has reached a boiling point. http://on.wsj.com/2qWccmQ- General Motors Co Chief Executive Mary Barra faces shareholders this week, under pressure from a hedge-fund investor and fresh scrutiny following the ouster of her counterpart at a crosstown rival.

Source: Wall Street Journal June 06, 2017 04:30 UTC