By the time the rumor mill caught wind of this transaction, the price tag for the buyout was $1 billion dollars. According to a quarterly investment filed today, Facebook paid $521 million dollars in cash and $194 million dollars in stock for Instagram.
“The $521 million includes about 12 million shares of common stock to Instagram’s non-employee stockholders and $300 million in cash. The additional 11 million shares have a value of $194 million.” [AlLindstrom]