Tesla Owns Nearly 19 Million Shares of SpaceX: What TSLA Investors Need to Know Before the IPO

I’ve been digging through the SpaceX S-1 filing for hours, and one number deserves its own spotlight in every TSLA model: Tesla’s beneficial ownership of SpaceX Class A common stock.  I’m not going to waste your time with a huge…

Published May 20, 2026, 7:15pm ET · 2 min read

Elon Musk, a Caucasian man with short, messy brown hair, wearing a black suit jacket and white shirt, stands outdoors holding a clear water bottle. He is smiling and looking slightly to his right. Behind him is a grassy field and a blue banner that reads 'SPACEX FUTURE HOME OF SPACEX SOUTH TEXAS LAUNCH PAD' with an image of a rocket launching. Another person's profile is partially visible on the left, wearing a suit and striped tie. The sky is partly cloudy.
Elon Musk stands at a SpaceX launch site, symbolizing the company's ambitious future and its significant role in the burgeoning space economy. © Robert Daemmrich Photography Inc / Getty Images

I’ve been digging through the SpaceX S-1 filing for hours, and one number deserves its own spotlight in every TSLA model: Tesla’s beneficial ownership of SpaceX Class A common stock. 

I’m not going to waste your time with a huge article about this. I thought you needed to know right way, so here are the bullets:

The Metric

Tesla (NASDAQ:TSLA | TSLA Price Prediction) is the beneficial owner of 18,990,195 shares of SpaceX Class A common stock as of May 1, 2026, representing an ownership interest of less than 1.0% of total outstanding Class A shares after giving effect to the offering.

TSLA price target

Why It Matters

This is an off-balance-sheet asset that Tesla’s auto-and-energy revenue mix completely hides. Tesla already disclosed a $2B investment in SpaceX equity in its Q1 2026 8-K filed April 22, 2026. Once SpaceX prices, that stake gets a public mark, and Tesla shareholders inherit a direct claim on rocket and Starlink economics.

The Current State

Polymarket traders assign a 61% implied probability to a SpaceX IPO valuation in the $1.75T to $2.00T range, with a 70.5% probability of closing first-day market cap above $2T. The same crowd prices SpaceX higher than Tesla on June 30 at 88.5%.

What to Watch

Bullish: the Terafab chip collaboration announced March 2026, plus Intel joining in April 2026, deepens the SpaceX relationship beyond passive equity. Bearish: only 1.4% odds of a Tesla-SpaceX merger announcement by June 30 means the two stay separate, and minority-stake accounting limits how much value flows through.

The (Very Quick) Verdict

With TSLA trading at $417.26 on a 370 trailing P/E, the 19 million SpaceX shares are the hidden asset the consensus model isn’t pricing, and the IPO is the moment that changes.

TSLA price scenario

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Jeremy Phillips

I've been writing about stocks and personal finance for 20+ years. I believe all great companies are tech companies in the long run, and I invest accordingly.

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