How did SpaceX go from a $350 billion private valuation to the largest IPO ever?

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IPO path

1. 1$350 billion tender talksDec 3, 2024Report

   Tender offer talks value SpaceX at about $350 billion

   Bloomberg reported that SpaceX was discussing an insider share sale at roughly $350 billion, up from $210 billion a year earlier, making it the most valuable private company in the United States. The periodic tender offers, which let employees and early investors sell to outside funds, were how SpaceX's price was set before it went public.

   Bloomberg (via Yahoo Finance) · SpaceX is in discussions to sell insider shares that could boost the value of Elon Musk's rocket and satellite company to around $350 billion, according to people familiar with the matter.

   Why it matters here. The higher private-market benchmark supported another insider transaction as SpaceX continued preparing for a public listing.

   SpaceX Goes Public: From the $350 Billion Tender Offer to the Largest IPO Ever and the Lockups

2. 2$800 billion private saleDec 12, 2025Announcement

   $800 billion insider sale, and a company memo confirms IPO preparations for 2026

   An insider share sale at $421 a share valued SpaceX at about $800 billion, past OpenAI's $500 billion record for a private company, and a company message seen by Bloomberg said SpaceX was preparing for a possible 2026 offering to fund an 'insane flight rate' for Starship, AI data centers in space and a moon base.

   Fortune · SpaceX is moving forward with an insider share sale that values Elon Musk’s rocket and satellite maker at about $800 billion, setting up what could be the largest initial public offering of all time.

   Why it matters here. The insider sale and confirmed 2026 IPO preparations gave SpaceX a private-company valuation and timetable before its major pre-listing combination.

   SpaceX Goes Public: From the $350 Billion Tender Offer to the Largest IPO Ever and the Lockups

3. 3xAI joins SpaceXFeb 2, 2026Announcement

   SpaceX absorbs xAI, Grok and X in an all-stock deal valuing the combination at $1.25 trillion

   Four months before listing, Musk folded his AI company xAI, with the Grok models and the X social network, into SpaceX in what CNBC called the largest private merger ever, at $1 trillion for SpaceX and $250 billion for xAI. The deal put an AI business, and its losses and data-center spending, into the company that would go public.

   CNBC · Last week, Musk announced a record-setting, all-stock transaction in which SpaceX, the aerospace and defense juggernaut, acquired xAI, which owns and operates social network X and is the developer of Grok, the…

   Why it matters here. Combining xAI, Grok and X into a $1.25 trillion company set up a registration statement for the enlarged business.

   SpaceX Goes Public: From the $350 Billion Tender Offer to the Largest IPO Ever and the Lockups

4. 4SPCX registration appearsMay 20, 2026Regulatory

   The S-1 goes public: ticker SPCX on Nasdaq, Goldman Sachs leading, Starlink and AI numbers disclosed

   SpaceX's public registration statement set up a Nasdaq listing under SPCX with Goldman Sachs as lead-left underwriter followed by Morgan Stanley, Bank of America, Citigroup and JPMorgan, and for the first time showed the company's financials: 2025 revenue of $18.7 billion, billions in losses driven by Starship and the xAI business, and Musk's control through Class B shares carrying more than 80 percent of the voting power.

   CNBC · SpaceX's official IPO filing sets up a likely Nasdaq debut next month. Goldman Sachs is lead left on the prospectus, followed by Morgan Stanley, Bank of America, Citigroup and JPMorgan Chase.

   Why it matters here. The public filing established the Nasdaq ticker and underwriting lineup needed for the offering to move to pricing.

   SpaceX Goes Public: From the $350 Billion Tender Offer to the Largest IPO Ever and the Lockups

5. 5Record offering pricedJun 11, 2026Launch

   Priced: 555.6 million shares at $135, $75 billion, the largest IPO in history

   SpaceX priced its offering at a fixed $135 a share with no bookbuilding range, selling 555,555,555 Class A shares for $75 billion before the underwriters' option, and listing on both Nasdaq and the new Nasdaq Texas exchange. The final prospectus reserved up to five percent of the shares for employees and people named by executives, and kept board control with Musk.

   SpaceX final prospectus, Form 424B4 (SEC) · We are offering 555,555,555 shares of our Class A common stock.

   Why it matters here. The fixed $135 offer price gave the market a clear baseline for SPCX's first day of trading.

   SpaceX Goes Public: From the $350 Billion Tender Offer to the Largest IPO Ever and the Lockups

6. 6SPCX debuts above $2TJun 12, 2026Launch

   Debut: opens at $150, closes at $161, market value above $2 trillion

   Gwynne Shotwell rang the Nasdaq opening bell and SPCX opened at $150, 11 percent above the offer price, and finished its first session at $161, up 19 percent, giving SpaceX a market capitalization above $2 trillion, more than Amazon or Microsoft on the day.

   CNBC · SpaceX shares soared on Friday, propelling the rocket company's valuation above $2 trillion, as trading commenced on the Nasdaq after a record-setting initial public offering.

   Why it matters here. The first-day trading result completed the move from private valuation marks to a public market value above $2 trillion.

   SpaceX Goes Public: From the $350 Billion Tender Offer to the Largest IPO Ever and the Lockups

Timelines in this chain

• SpaceX Goes Public: From the $350 Billion Tender Offer to the Largest IPO Ever and the Lockups · 6 steps
• Nvidia's Dealmaking: From Mellanox and the Failed Arm Bid to Groq and Hugging Face
• SpaceX Starship Test Flights: From the First Launch to Orbit

A chain is written by the editor from entries already published on the timelines above, each of which was read against its source before publication. The chain changes when those entries do. Data and terms.