The price is $54.20 per share.
The total value of the transaction is about $44 billion.
Elon Musk is giving a 38% premium price over Twitter's last closing price.
Elon Musk wants Twitter to be a free speech town square
Twitter will become a private company and will no longer trade its shares on any stock exchange.
Musk secured $ 25.5 billion in "fully committed debt and mortgage lending" and used about $ 21 billion of its own equity to finance the purchase.
According to Forbes magazine, Musk is the richest person in the world with an estimated net worth of $ 273.6 billion.
Musk has founded several major companies or co-founder. The list includes Tesla, SpaceX, OpenAI, Neuralink, the Boring Company and Starlink and now Twitter.