Anthropic files to go public: what the S-1 says about control

Covers roughly 5am ET Monday, Oct 26 through early Tuesday, Oct 27. Monday brought Anthropic's public IPO filing, a $600M round for autonomous excavators and a $40B GPU lease commitment at SpaceX. Five venture rounds in the window cleared our checks, plus one Oct 22 round an earlier issue missed (marked "catch-up"). Every round below is confirmed by the company, its lead investor or a filing. Figures companies report about themselves are labeled company-reported.

Anthropic, PBC filed a public registration statement on Form S-1 on Monday for an IPO of Class A stock on the Nasdaq Global Select Market under the ticker "ANT". The share count and price range are blank for now, and selling stockholders will offer shares alongside the company (Anthropic · S-1 on EDGAR · TechCrunch). The filing puts Anthropic's own financials on the public record. Revenue went from $41M in 2023 to $386M in 2024 and $4.6B in 2025. For the first six months of 2026 it was $16.3B, which the company puts at 1,300% growth on a year earlier. The operating loss for that half was $693M, against $2.1B in the same period of 2025. The net loss was $80.7B, but $72.4B of it was a non-cash charge for the rising fair value of convertible notes, derivatives and SAFEs, which the filing ties mainly to Anthropic's own climbing valuation. Cash, equivalents and short-term investments stood at $131.7B on June 30. As of Sept. 30 the company reports more than 11,900 customers paying $100,000 or more over twelve months and net revenue retention of about 900%, a metric it defines itself and that excludes Claude Pro and Max subscribers (company-reported). It also discloses roughly $265.6B of fixed or minimum compute and infrastructure commitments with terms of one to 20 years. Why it matters for investors: Read the governance section before the growth charts. Public buyers get Class A stock with one vote per share. A Long-Term Benefit Trust holds Class T stock and elects the directors who form a board majority. A founders' LLC, initially owned by the seven co-founders, gets one Class F share carrying 50.1% of the vote on general matters. Strategic partners mostly hold non-voting Class N stock. The filing says Anthropic will be a "controlled company" under Nasdaq rules, and warns that its multi-class structure could keep it out of some stock indices. For private AI investors, two lessons stand out. First, the $72.4B charge shows how convertible notes from strategic backers reprice as valuations climb. The filing says Amazon's notes convert into Class N shares at the IPO, subject to an ownership cap that Amazon can waive. Second, once priced, this becomes the public comparable for every private frontier-lab mark, and secondary prices and late-stage terms will be measured against it.

Historical lens. Anthropic isn't the first issuer to tell IPO buyers up front that they are buying economics, not control. Google's S-1, filed April 29, 2004, gave its Class B shares ten votes each against one for the Class A stock sold to the public. Its founders' letter said new shareholders would have less influence over strategy than at most public companies, cited the dual-class structures of The New York Times Company, the Washington Post Company and Dow Jones, and said Google intended to give about 1% of its equity and profits, in some form, to a foundation it was setting up (Google S-1). A closer cousin is German: Robert Bosch Stiftung, a charitable foundation, holds roughly 94% of Robert Bosch GmbH's share capital but has no say in the group's strategy, while Robert Bosch Industrietreuhand KG holds about 93% of the voting rights (Bosch). Our interpretation, not established fact: Anthropic combines both: a founder vote block, a mission trust that picks the board majority, and a grant of 5% of its fully diluted shares to its own public-benefit fund. Google asked public buyers to accept founder control. How markets price a trust on top of that is untested.

Bedrock Robotics, a San Francisco company that retrofits existing heavy equipment to run without an operator, raised a $600M Series C at a $4.1B post-money valuation. CapitalG and Emergence Capital co-led. New investors US Innovative Technology Fund (USIT), Bessemer Venture Partners and Temasek joined existing backers including 8VC, Georgian, Valor Equity Partners, Xora, Eclipse, Perry Creek Capital and NVIDIA (Bedrock / GlobeNewswire · TechCrunch). The company says total funding is now close to $1B. Founded in 2024 and run by former Waymo engineers, Bedrock says its excavators began doing paid work on live commercial sites in mid-August 2026. It also says it has more than doubled its customer count since 2025 (company-reported). New customers named in the release include Arizona contractor Haydon and builders in Minnesota, Florida, Virginia, Colorado, Missouri, Georgia and Arkansas. It also added a VP of operations and a general counsel, both with experience building the operating and legal groundwork for autonomous systems. Why it matters for investors: This is the robotaxi playbook moved to a more controlled setting than public roads, sold into an industry that, the company argues, can't hire enough skilled crew. The valuation still prices in a lot of scale on top of about ten weeks of paid commercial work (our count from mid-August). Diligence questions: How is Bedrock paid (per machine, per hour or per cubic yard moved)? Who carries liability when an autonomous machine damages a site? How fast can one field team support many machines? The capital need also looks closer to an AV company than to software, because field operations, retrofit kits and on-site support consume cash.

SpaceX disclosed a binding commitment to enter a master finance lease under which an Apollo-managed entity will buy GPU pods and related equipment and lease them to SpaceX for use at data centers it selects. The company expects principal payments over the lease terms to total about $40B (SpaceX 8-K · SpaceX · TechCrunch). Apollo and Goldman Sachs led the financing parties, and Goldman also acted as sole structuring agent. Anchor commitments came from BlackRock- and Goldman Sachs Asset Management-run funds and accounts and from KKR-advised accounts. Equipment arrives in tranches, each on its own schedule of roughly 5 to 5.25 years, starting with deliveries in the first half of 2027. Rent is paid quarterly in advance. Each payment is generally one-twentieth of the tranche's financed cost, plus a fixed-rate charge on the outstanding balance and some ongoing costs; the rate will be set at pricing. SpaceX's CFO said the company is seeing payback periods of under a year on what it calls its SI (superintelligence) infrastructure (company-reported). The deal is expected to close before year-end. Why it matters for investors: Twenty quarterly principal payments of one-twentieth each means each tranche is paid down over about five years (our arithmetic). The lender is effectively betting that the chips will produce cash for that long, or that SpaceX's balance sheet will cover the gap. Note who is lending: private credit (Apollo, KKR-advised accounts) and asset managers, not just banks. Our read: this structure will move down-market to neoclouds and well-funded AI labs. For equity investors in those companies, ask whether compute arrives on a lease, who holds the hardware, and how lease payments rank against equity if utilization drops.

Round notes

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