OpenAI has finalized a secondary share sale totaling $6.6 billion, allowing current and former employees to sell stock at a record $500 billion valuation, according to a person familiar with the transaction.

Bloomberg was first to report that the deal had closed.

CNBC reported in August that OpenAI was looking to conduct a secondary share sale at a valuation of $500 billion, with investors including Thrive Capital, SoftBank, Dragoneer Investment Group, Abu Dhabi's MGX, and T. Rowe Price.

While OpenAI had authorized up to $10.3 billion in shares for sale — an increase from the original $6 billion target — only about two-thirds of that amount ultimately changed hands.

The person briefed on internal discussions said that lower participation is being viewed internally as a vote of

See Full Page