Read the memo Jamie Dimon's lieutenants just sent announcing his return home from the hospital following emergency heart surgery

JPMorgan Chase CEO Jamie Dimon is out of the hospital and at home recovering following an emergency heart surgery, according to an internal memo sent to employees by executives that was obtained by Business Insider.

"We are delighted to share with you the good news that Jamie left the hospital today and is back at home," the memo said. "While we do not plan to provide regular updates about this, we want you to know that his doctors said he is doing very well in all aspects of his recovery. He is in good spirits and looking forward to reengaging with our team soon."

Dimon had undergone emergency heart surgery after experiencing chest pains last week.

JPMorgan employees told Business Insider what the first 48 hours after Dimon entered surgery were like under the company's contingency plan.

Here's the full memo sent to employees on Thursday:

Message from Daniel Pinto and Gordon Smith

We are delighted to share with you the good news that Jamie left the hospital today and is back at home. While we do not plan to provide regular updates about this, we want you to know that his doctors said he is doing very well in all aspects of his recovery. He is in good spirits and looking forward to reengaging with our team soon.

Jamie has received thousands of messages of support, including from many of you. He wanted us to tell you how much he appreciates all of your good wishes and how proud he is of your outstanding efforts.

We also want to thank all of you once again for stepping up to ensure we seamlessly serve our customers, clients, communities and shareholders during these particularly turbulent times. It is because of you that this firm is known for being there for its customers and communities, in good times and bad times.