SpaceX share sale climbs to $85.7 billion after underwriters use extra allotment

SpaceX’s latest share sale has grown to a total of $85.7 billion after underwriters exercised an overallotment option, according to reports from Investing.com and CNBC. The move added to what was already a closely watched transaction involving one of the most valuable private companies in the market.

The additional allocation came through the standard after-market mechanism often referred to as a greenshoe or overallotment option. In this case, the exercise of that option increased the total amount raised in the transaction, bringing the final figure to $85.7 billion. The reports did not indicate any change in the basic structure of the deal beyond the use of that option, but the size of the final total underscores the scale of investor demand associated with the offering.

CNBC reported that the transaction drew notable participation from longtime SpaceX backer Ron Baron. Baron said on CNBC’s “Squawk Box” that he bought $1 billion worth of SpaceX shares in the IPO. He also said the purchase lifted his stake to $25 billion. The report included his comment that he expects the investment to be highly valuable over time, though the sources only provided that remark in broad terms and not as a formal company statement.

Baron’s purchase highlights how the offering was not only significant in size but also attracted large allocations from investors already closely tied to the company’s growth story. SpaceX has long been viewed as a major private-market name, and the latest sale appears to have drawn interest from backers willing to deepen their exposure rather than reduce it. The reports did not provide a full list of participants or the broader ownership changes resulting from the deal.

The use of the overallotment option suggests the transaction was sufficiently strong for underwriters to expand the sale after the initial allocation. In public-market and private-market dealmaking, that option is typically used to meet excess demand and help stabilize pricing around the offering. The reports did not disclose pricing details, but the exercise of the option added a further layer of size to an already large transaction.

For investors following the deal, the most immediate takeaway is the combination of a very large final raise and the involvement of a prominent existing shareholder increasing his exposure. Together, those details point to sustained appetite for SpaceX shares despite the company remaining outside the public markets. The reports did not include any new operational guidance from SpaceX, nor did they mention any immediate market-wide consequences beyond the transaction itself. Instead, the story centers on the sheer scale of the sale and the participation of a high-profile investor who said he added $1 billion in shares.