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How Elon Musk became the world's richest person.
The documented climb from a $22 million startup exit to the first trillion-dollar fortune.
Latest: Forbes put Elon Musk's net worth at about $1.05 trillion on October 7, 2026. It first counted him past $1 trillion when SpaceX began trading on June 12, 2026. Market moves took him below that line later in June, and he crossed it again on October 5, 2026, when SpaceX shares reached their highest price since June. Who was the first trillionaire?
Swipe the chart sideways for earlier years.
Move the markets, watch the fortune
Drag a price multiplier for Tesla and for SpaceX, or tap a preset, and the value of Elon Musk's filed stakes in the two companies recomputes live from his share counts.
Tesla and SpaceX stakes worth about $1.07T at October 2, 2026 closing prices (Tesla $370.59, SpaceX $158.96)
How this is calculated
This is a hypothetical for education only. Prices are the October 2, 2026 Nasdaq closes: Tesla (TSLA) $370.59 and SpaceX (SPCX) $158.96. The Tesla stake is 699,580,882 shares from the June 16, 2026 Schedule 13G/A, including 286,428,773 restricted shares from the 2018 award that still vest over time. The SpaceX stake is 4,766,475,230 shares held directly or through his trusts, plus 350,000,000 vested options with an $8.40 exercise price (counted at their value above that price), from the ownership table in the final IPO prospectus filed June 12, 2026. The model leaves out 1,302,072,285 restricted SpaceX shares that vest only on performance goals, the unvested 2025 Tesla award, The Boring Company, Neuralink, cash, and any debt. At the $135 IPO price the SpaceX stake was worth about $688B. Forbes's figure of about $1.05 trillion on October 7, 2026 leaves out the restricted Tesla shares and adds his private holdings.
What the fortune is made of
Elon Musk's wealth is almost entirely equity, meaning ownership stakes in the companies he runs. The value rises and falls with those companies, and most of it cannot be spent without selling shares or borrowing against them.
The Tesla stake
The Tesla stake comes straight from a regulatory filing. As of June 16, 2026, Elon Musk reported 699,580,882 Tesla shares, about 19.9 percent of the company, in a Schedule 13G/A filed with the Securities and Exchange Commission. That total now includes the shares from his exercised 2018 pay package.
A large block of his Tesla shares has at times been pledged as collateral for personal borrowing. Tesla's 2025 proxy states he currently has no loans backed by those shares, and caps any such borrowing well below the pledged value.
The stake moves with the share price, and so does the fortune. On May 1, 2020, this post moved Tesla's share price about 10% lower in a day, roughly $14 billion of market value.
Tesla stock price is too high imo
Elon Musk (@elonmusk), May 1, 2020
The pay packages
Almost all of Elon Musk's Tesla ownership came from two performance awards that pay nothing unless Tesla hits steep targets.
The 2018 CEO Performance Award was built as 12 tranches. Each one vested only when Tesla reached a market-cap milestone, starting at $100 billion and climbing in $50 billion steps to $650 billion, paired with a revenue or profit goal. All 12 were achieved. The option covered 303,960,630 shares after stock splits. Under an implementation agreement signed on April 21, 2026, exercising it gave him 286,428,773 restricted shares, which still vest over time and carry votes. Those shares plus 413,152,109 held in his trust make up the 699,580,882 shares, or 19.9%, reported on the June 16, 2026 Schedule 13G/A. The filing leaves out the 423,743,904 shares of the 2025 award, in which he disclaims beneficial ownership, meaning he does not count them as his.
The 2025 award, approved by shareholders on November 6, 2025, is far larger and far harder. It grants up to 423,743,904 restricted shares, around 12 percent of the company, across 12 tranches tied to market-cap milestones that run from $2 trillion all the way to $8.5 trillion, plus operational targets like 1 million robotaxis and 1 million Optimus robots. None of it has vested.
The private companies
Outside Tesla, the picture gets harder to source, because private companies do not file the same disclosures.
@xAI has acquired @X in an all-stock transaction. The combination values xAI at $80 billion and X at $33 billion ($45B less $12B debt). Since its founding two years ago, xAI has rapidly become one of the leading AI labs in the world, building models and data centers at light speed.
Elon Musk (@elonmusk), March 28, 2025
That post gives the cleanest official value for xAI. SpaceX acquired xAI on February 2, 2026, and folded it into SpaceX as SpaceXAI on May 6, 2026. The Boring Company's last official valuation was $23 billion, set when it raised $3 billion in a Series D on September 9, 2026.
SpaceX used to be the largest gap. That changed with its initial public offering (IPO), priced on June 11, 2026 at $135 a share. The final prospectus lists Elon Musk with 849,494,440 Class A and 5,569,053,075 Class B shares, a count that includes 350,000,000 vested options and 1,302,072,285 restricted shares that vest only if SpaceX hits market-value goals plus either a Mars colony of 1 million people or space-based data centers delivering 100 terawatts of compute a year. Leaving out the restricted shares and counting the options, his economic stake is about 38 percent. The prospectus puts his voting power at about 82 percent after the offering. Neuralink and The Boring Company remain private.
How he bought Twitter
The 2022 Twitter purchase shows how a large Elon Musk deal is actually financed. The headline price was about $44 billion, or $54.20 per share.
I made an offer
Elon Musk (@elonmusk), Apr 14, 2022
As the SEC filings were amended through 2022, the equity commitment rose from $21 billion to $33.5 billion while the bank and margin debt shrank, leaving roughly $33.5 billion in equity and $13 billion in bank debt. X was later folded into SpaceXSI.
