Anthropic confidentially submitted a draft S-1 registration statement to the SEC, announced June 1, 2026. Because the filing is confidential, most of what investors want to know is not yet public. This guide separates what is confirmed, what is credibly reported, and what nobody outside the company knows yet, so you do not make decisions based on invented numbers.
What is confirmed
Confidential S-1 submitted, announced June 1, 2026. A confidential draft filing lets a company start SEC review privately; the S-1 must be made public at least 15 days before any roadshow.
Series H closed May 28, 2026: $65 billion raised at a $965 billion post-money valuation, per the company's announcement and broad press coverage. That made Anthropic the most valuable private AI company at the time of filing.
Revenue run rate of approximately $47 billion as of May 2026, up from roughly $9 billion annualized in January 2026, per company statements reported across multiple outlets.
Reported target: an October 2026 Nasdaq listing, with Goldman Sachs, JPMorgan, and Morgan Stanley leading, and a raise expected to exceed $60 billion. Targets can move; none of this is binding until pricing.
The company has told investors it expects its first operating profit in Q2 2026. The S-1's audited financials will confirm or contradict this.
What is NOT public (and anyone quoting these numbers is guessing)
Total shares outstanding and fully diluted share count. A confidential filing discloses nothing. Any "Anthropic share count" or "price per share at IPO" you see today is either a secondary-market data point or a fabrication. The authoritative numbers arrive when the S-1 goes public.
Ticker symbol, exchange confirmation, price range, and offering size. Expected but not set.
Audited gross margins. This is the single most important unknown. Analysts have publicly questioned how much of the headline run rate is retained after compute costs, and whether revenue is reported gross or net. The public S-1 resolves it.
The lockup period. Standard IPO lockups run 90 to 180 days, and some recent large listings have used staggered or early-release structures. Until the S-1 is public, Anthropic's specific terms are unknown.
The cap table: what public reporting supports
Anthropic has raised roughly $125 billion across its funding history. The ownership picture, from public announcements and reporting:
Amazon is Anthropic's largest disclosed corporate investor, with $8 billion invested cumulatively across 2023 and 2024 commitments, announced by both companies. Amazon Web Services is Anthropic's primary cloud and training partner.
Google has invested over $2 billion across multiple rounds. Court disclosures reported in early 2025 indicated Google held roughly 14% of the company with no voting control, board seats, or board observer rights. Its current exact stake after subsequent rounds is not public.
Institutional investors across recent rounds include, per round announcements: ICONIQ, Fidelity, and Lightspeed (Series F); GIC, Coatue, and D.E. Shaw (Series G); Altimeter, Dragoneer, Greenoaks, and Sequoia (Series H co-leads), among others.
Founders Dario Amodei (CEO) and Daniela Amodei (President) and other former OpenAI researchers founded the company in 2021. Their personal stakes have never been publicly disclosed.
A public S-1 will include a beneficial ownership table for 5%+ holders, officers, and directors. That table, not secondary-market chatter, is where the real cap table finally becomes visible.
Seven things to read first when the S-1 goes public
Gross vs net revenue definition. How Anthropic books cloud-routed revenue (for example, sales through Amazon Bedrock) determines whether the $47 billion run rate is comparable to peers.
Gross margin and compute cost trajectory. The distance between revenue and retained profit after inference and training costs is the core of the investment case.
Customer concentration. How much revenue depends on the largest customers and on the Amazon relationship specifically.
Commitments and obligations. Long-term compute and infrastructure contracts appear in the commitments footnote. These shape cash needs for years.
Share classes and governance. Whether Anthropic lists with dual-class shares, and what role its Long-Term Benefit Trust plays post-IPO, matters for shareholder rights.
The beneficial ownership table. Amazon's and Google's exact stakes, founder holdings, and how much existing holders are selling versus new shares issued.
Lockup and early-release provisions. These determine when pre-IPO holders, including SPV members, can actually sell.
What this means for pre-IPO investors
Anthropic shares circulate on secondary platforms, but the company restricts transfers and has publicly warned that unauthorized SPVs and tokenized instruments are void. If you are considering pre-IPO exposure now:
Only transact where the transfer is company-approved. A position that cannot settle is worthless regardless of price.
At a $965 billion last-round valuation against a reported $1 trillion+ listing target, the remaining private-to-public discount is thin. You are primarily buying timing, not a valuation gap.
Post-IPO lockups mean even successful pre-IPO positions stay illiquid for months after listing.
For GPs structuring compliant, company-approved SPVs for late-stage positions, Allocations provides formation, KYC/AML, banking, and K-1 administration at a flat fee. See our complete guide to investing in Anthropic pre-IPO.
Frequently asked questions
How many shares does Anthropic have outstanding? Not public. The confidential S-1 discloses nothing, and no authoritative share count exists outside the company until the filing becomes public.
What is Anthropic's valuation for the IPO? The last confirmed private mark is $965 billion (Series H, May 28, 2026). Reporting points to a $1 trillion+ target at listing, but no price range exists until the public filing.
Who owns Anthropic? Largest disclosed investors include Amazon ($8 billion cumulative) and Google (over $2 billion, reported at roughly 14% ownership with no voting control as of early 2025 court disclosures), plus institutional investors across nine funding rounds. Exact current stakes will appear in the public S-1's ownership table.
When is the Anthropic IPO? Reported target is October 2026 on Nasdaq. The actual date depends on SEC review and market conditions.
What will the lockup be? Unknown until the public filing. Typical ranges are 90 to 180 days, sometimes with staggered early-release triggers.
Figures in this article are from company announcements and public reporting as of July 13, 2026, and from pre-2026 public filings and court disclosures where noted. Confidential filing contents are unknown by definition. Nothing here is investment advice.
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Author
Addhyan Negi
Director of Marketing, Allocations
Addhyan leads marketing at Allocations, a fintech platform for SPVs and fund administration, where he's spent the last few years building organic growth and content strategy across private markets. He writes about pre-IPO investing, fund structures, and the mechanics of how private companies actually get bought and sold. Outside of work, he's usually deep in the latest frontier AI models or listening to Punjabi music.
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