VCs will make billions on Anthropic’s IPO, however Amazon is ready to make a lot (a lot) extra

Many traders stand to win large when Anthropic goes public. Stakes held by companies together with Menlo Ventures, Sequoia, Sound Ventures, and Spark Capital are anticipated to return billions.

Yet in keeping with Anthropic’s S-1, none of these VC companies owns 5%, the edge for being included within the principal stockholders’ desk. That’s extremely uncommon. In a typical tech IPO, lead enterprise traders maintain double-digit-percentage stakes within the startups they backed. The cause is Anthropic’s measurement. At its $965 billion personal valuation, a 1% stake is price almost $10 billion, so, for instance, Menlo’s roughly $14 billion position is simply about 1.5% of the corporate, in keeping with recently reported Bloomberg figures.

While the enterprise companies might lack sizable share stakes, Anthropic bought massive stakes to strategic companions, firms which are additionally its enterprise companions. Indeed, Amazon is probably going the only largest monetary beneficiary of the IPO.

Amazon first backed Anthropic in 2023 with a dedication to speculate up to $4 billion within the AI firm. Since then, Amazon has poured billions extra into Anthropic. Instead of taking inventory upfront, Amazon structured a lot of its asset placement as convertible notes, a kind of debt that converts into shares upon an IPO or sale.

According to the S-1, Amazon holds convertible notes with $6.2 billion in principal excellent as of June 30. That is Anthropic’s complete debt load. But as Anthropic’s valuation soared throughout successive funding rounds, the shares these notes will convert into turned way more worthwhile. Amazon’s personal filings valued its word holdings at $97.9 billion as of June 30.

As the worth of Amazon’s convertible notes surged, Anthropic needed to file the rising worth of what it owes on its books. It reported the changes on its earnings assertion underneath “change in truthful worth of convertible notes, spinoff liabilities, and SAFEs,” a line that totaled $72.4 billion for the primary half of 2026. The cost is non-cash, that means no cash left the corporate.

Amazon’s notes might convert into as many as 1.84 billion shares, in keeping with the S-1. But a cap limits Amazon to 12% of Anthropic’s “partially diluted” share depend, a determine that counts some shares not but issued, akin to inventory choices. Amazon can waive the cap. Notes that may’t convert will keep excellent and convert in later quarters, topic to the identical restrict.

But the notes are solely a part of Amazon’s holdings. It additional invested $10 billion in nonvoting most popular inventory (a kind of fairness), within the second quarter, in keeping with Amazon’s quarterly report for the interval ended June 30. Amazon did this by investing $5 billion in every of Anthropic’s final two funding rounds. Combined with the $8 billion it invested within the notes from 2023 via 2025, that brings Amazon’s complete asset placement to about $18 billion.

Beyond its inventory beneficial properties, Amazon may even proceed to earn vital proceeds from Anthropic, which has dedicated to spend at the very least $110 billion on AWS over the following 10 years.

Google, too, is ready for a serious windfall from each the itemizing and its cloud computing offers with Anthropic. The search large held about 14% of Anthropic as of early final yr, in keeping with court filings that have been reported by The New York Times, and has invested extra since, together with $10 billion in April. (Google was probably diluted in subsequent and large funding rounds, with PitchBook analyst Harrison Rolfes telling TechCrunch he estimates its present stake at nearer to five.6%.) It has additionally secured at the very least $114 billion in cloud commitments from the Anthropic via 2033.

While VCs set for enormous paydays have little cause to complain, the S-1 makes it clear that the largest winners of Anthropic’s IPO might be tech giants like Amazon, which backed a would-be rival early on and now promote it a lot of the computing energy it runs on.

The S-1 itself warns that a few of these cloud suppliers additionally construct rival AI fashions and that they could not at all times need the identical issues that Anthropic does.