Musk Discloses 48.4% SpaceX Stake Worth Over $900B Ahead of Aug 20 Unlock

A regulatory filing published August 13, 2026 showed Elon Musk held a 48.4% economic stake in SpaceX as of June 30 — 6.42 billion shares worth more than $900 billion at current prices — while retaining over 82% of voting power through Class B shares since the IPO. Musk noted that a large portion of the stake 'only vests on extremely crazy good outcomes for SpaceX,' so the fully-vested percentage is lower. SPCX shares extended their rally, rising as much as 9.65% intraday to $146.15 and pushing the four-day gain above 40%, as investors looked past the disclosure toward the next scheduled unlock on August 20, when roughly 320 million additional shares (about $42.5 billion) become eligible for sale.