Tesla buried a one-sentence disclosure in the final footnote of its Q1 2026 10-Q filing: it agreed to acquire an unidentified AI hardware company for up to $2 billion in stock and equity awards, with only $200 million guaranteed upfront and the remaining $1.8 billion contingent on performance milestones tied to "successful deployment of the company's technology." Tesla made no mention of the deal during its earnings call or in the shareholder letter, and did not name the target company or describe its technology. The acquisition sits alongside Tesla's AI5 chip tape-out, Terafab semiconductor partnership, and $25 billion in planned 2026 capex — all part of a rapid AI hardware buildup.