Jamie Dimon, chief executive at JPMorgan Chase, gathered his British employees recently to talk about the upcoming referendum on Great Britain leaving the European Union. “I can’t tell Britons how to vote,” he told them, but then went on to warn of possible consequences.
If Britain were to leave, he said, the company’s London offices could no longer handle customers on the European mainland — and that could impact 1,000, 2,000 or even 4,000 jobs.
“I don’t know how many,” Mr. Dimon said. “But give careful consideration to how you vote.”
The U.S. banking multinational has its global corporate headquarters in London, and the boss wasn’t mincing his words: If Great Britain leaves the European Union, JPMorgan would not continue business in London as usual.
Other big banks have announced similar reactions to a so-called “Brexit,” but none were as direct or ominous.