Jamie Dimon reportedly received a surprising response when he called President-elect Donald Trump following his election victory.
The JPMorgan Chase CEO, who had privately supported Vice President Kamala Harris, called Trump the day after the election to give his congratulations.
But Trump did not pick up the call, forcing Dimon to leave a message on his voice mail, according to The New York Times.
The next week, Trump then declared in a post on his social media site Truth Social that Dimon would not be joining his incoming administration next year.
'I respect Jamie Dimon, of JPMorgan Chase, greatly, but he will not be invited to be a part of the Trump Administration. I thank Jamie for his outstanding service to our Country!' Trump wrote on November 14.
Republicans and Democrats had mentioned Dimon as a potential Treasury Secretary for the President-elect, and also for Vice President Kamala Harris, had she won.
But shortly after the post, the billionaire banker pushed back on the idea that he would have joined a team under the President-elect.
'First of all, I wish the president well, and thank you, it's a very nice note,' he said at a summit in Lima, Peru.
'But I just want to tell the president also, I haven't had a boss in 25 years and I'm not about ready to start,' he added.
Donald Trump reportedly did not pick up the phone when Jamie Dimon called him after the election
According to The New York Times, 68-year-old Dimon had told associates he had not spoken to Trump in years before his call was snubbed by the President-elect.
However a few days later, the banker, who has an estimated net worth of around $2.6 billion, said that his industry was 'dancing in the street' over Trump's win and incoming Republican majorities in the House of Representatives and Senate.
Many on Wall Street are looking forward to a second Trump administration, which they see as a boon to business.
It is not known whether Dimon, who has served as the CEO of America's biggest bank for nearly two decades, has since spoken directly to the President-elect in the last several weeks.
It comes after Dimon - a registered Democrat - was forced to publicly deny that he had endorsed Trump in October, after the then-presidential candidate made the false claim on Truth Social.
President-elect Donald Trump took to Truth Social to say that JPMorgan Chase CEO Jamie Dimon would not be 'invited' to join the second Trump White House
Dimon was forced to publicly deny that he had endorsed Trump in October
His wife Judy, however, knocked doors for Harris in the swing state of Michigan the weekend before voters headed to the polls.
She also donated nearly $200,000 to the Democratic National Committee and gave the Harris campaign $3,300 - the maximum individual donation allowed to be donated to a candidate's committee per election cycle, according to Open Secrets.
Following Trump's win, Dimon called the election 'one of the hardest fought and at times divisive elections in our recent history,' in a statement to The Wall Street Journal.
'Soon it will be time for all of us to unite behind our President elect and all of our national leaders,' he said.
'We must begin the work of bringing our nation together and focusing on the pressing economic and global issues before us.'