Anthropic Files Confidential S-1; SpaceX IPO Roadshow Opens June 4

Anthropic files its S-1 ahead of OpenAI as SpaceX launches its roadshow Thursday in a three-way AI IPO race targeting more than $3.7 trillion in combined market value.

💰 Anthropic Confidentially Files for IPO, Getting Ahead of OpenAI

Decoded: Anthropic filed a confidential S-1 registration statement with the Securities and Exchange Commission on June 1, 2026 — the first major AI lab to formally begin the U.S. IPO process, according to Reuters and CNBC. The filing follows Anthropic's $65 billion Series H funding round that set a $965 billion valuation and a $47 billion annualized revenue run rate. OpenAI is preparing its own confidential filing but has not yet submitted it; CEO Sam Altman told CNBC that OpenAI "will go public when it makes sense." A confidential filing allows Anthropic to complete SEC review before selecting a listing date, with analysts projecting a Q4 2026 debut. Anthropic's major investors — including Amazon with a $5 billion commitment and Alphabet — hold significant pre-IPO equity positions. (Reuters, CNBC, June 1, 2026)

Why it matters: Anthropic filing ahead of OpenAI creates a sequencing advantage: the first AI lab to complete SEC review and set pricing anchors the valuation range for the others. At $965 billion, Anthropic is approaching a $1 trillion public market debut — which would rank among the largest U.S. tech listings on record. For investors with Amazon (AMZN) and Alphabet (GOOGL) exposure, both holding significant Anthropic equity, a successful IPO surfaces billions in unrealized balance-sheet gains. The race also marks the first time frontier AI lab equity will be directly accessible to retail investors, creating a new asset class in the public markets.

💰 SpaceX IPO Roadshow Starts June 4 Targeting $1.75 Trillion Valuation

Decoded: SpaceX will launch its IPO roadshow on June 4 — this Thursday — targeting a valuation of $1.75 trillion to $2 trillion and a fundraise of up to $75 billion, Reuters reported June 1 with confirmation from multiple deal sources. The company filed its public S-1 prospectus with the SEC on May 20; Nasdaq listing is planned under ticker SPCX with IPO pricing expected around June 11. At $1.75 trillion, SpaceX would debut as one of the five largest U.S. public companies by market capitalization. Goldman Sachs (GS) and Morgan Stanley (MS) are among the underwriters managing the AI-era IPO wave; SpaceX's AI division received Nvidia's first hand-delivered Vera CPUs in May, and the company's Starlink satellite broadband network provides recurring infrastructure revenue that most IPO candidates lack at debut. (Reuters, TradingKey citing Reuters sources, June 1, 2026)

Why it matters: Three of the most anticipated IPOs in U.S. history — Anthropic, OpenAI, and SpaceX — are now advancing simultaneously, representing more than $3.7 trillion in aggregate target market value entering public markets in 2026. SpaceX's $75 billion fundraise alone would be the largest IPO capital raise in history. For portfolio construction, Starlink's recurring revenue provides a cash-generation layer most AI-adjacent listings lack; the valuation question is whether the launch business and AI optionality justify the premium above infrastructure multiples. Institutional allocators facing all three listings simultaneously confront a capital rotation decision that will pressure existing AI and tech equity prices as subscription windows open.

Stay decoded. See you tomorrow.

— The Get AI Decoded Team