Many investors stand to win big when Anthropic goes public. Stakes held by firms including Menlo Ventures, Sequoia, Sound Ventures, and Spark Capital are expected to return billions.
Yet according to Anthropic’s S-1, none of those VC firms owns 5%, the threshold for being included in the principal stockholders’ table. That’s highly unusual. In a typical tech IPO, lead venture investors hold double-digit-percentage stakes in the startups they backed. The reason is Anthropic’s size. At its $965 billion private valuation, a 1% stake is worth nearly $10 billion, so, for example, Menlo’s roughly $14 billion position is only about 1.5% of the company, according to recently reported Bloomberg figures.
While the venture firms may lack sizable percentage stakes, Anthropic sold large stakes to strategic partners, companies that are also its business partners. Indeed, Amazon is likely the single largest financial beneficiary of the IPO.
Amazon first backed Anthropic in 2023 with a commitment to invest up to $4 billion in the AI company. Since then, Amazon has poured billions more into Anthropic. Instead of taking stock upfront, Amazon structured much of its investment as convertible notes, a type 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 outstanding as of June 30. That is Anthropic’s entire debt load. But as Anthropic’s valuation soared across successive funding rounds, the shares those notes will convert into became far more valuable. Amazon’s own filings valued its note holdings at $97.9 billion as of June 30.
As the value of Amazon’s convertible notes surged, Anthropic had to record the growing value of what it owes on its books. It reported the adjustments on its income statement under “change in fair value of convertible notes, derivative liabilities, and SAFEs,” a line that totaled $72.4 billion for the first half of 2026. The charge is non-cash, meaning no money left the company.
Amazon’s notes could convert into as many as 1.84 billion shares, according to the S-1. But a cap limits Amazon to 12% of Anthropic’s “partially diluted” share count, a figure that counts some shares not yet issued, such as stock options. Amazon can waive the cap. Notes that can’t convert will stay outstanding and convert in later quarters, subject to the same limit.
But the notes are only part of Amazon’s holdings. It further invested $10 billion in nonvoting preferred stock (a type of equity), in the second quarter, according to Amazon’s quarterly report for the period ended June 30. Amazon did this by investing $5 billion in each of Anthropic’s last two funding rounds. Combined with the $8 billion it invested in the notes from 2023 through 2025, that brings Amazon’s total investment to about $18 billion.
Beyond its stock gains, Amazon will also continue to earn significant revenue from Anthropic, which has committed to spend at least $110 billion on AWS over the next 10 years.
Google, too, is set for a major windfall from both the listing and its cloud computing deals with Anthropic. The search giant held about 14% of Anthropic as of early last year, according to court filings that were reported by The New York Times, and has invested more since, including $10 billion in April. (Google was likely diluted in subsequent and massive funding rounds, with PitchBook analyst Harrison Rolfes telling TechCrunch he estimates its current stake at closer to 5.6%.) It has also secured at least $114 billion in cloud commitments from the Anthropic through 2033.
While VCs set for massive paydays have little reason to complain, the S-1 makes it clear that the biggest winners of Anthropic’s IPO may well be tech giants like Amazon, which backed a would-be rival early on and now sell it much of the computing power it runs on.
The S-1 itself warns that some of those cloud providers also build rival AI models and that they may not always want the same things that Anthropic does.
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.
Key Takeaways:
- **Hyperscalers Dominate AI IPO Windfalls:** Unlike traditional tech IPOs where VCs hold large percentage stakes, Anthropic’s staggering $965 billion private valuation means tech giants like Amazon and Google, rather than venture capital firms, are poised for the most significant financial gains.
- **Amazon’s Strategic Convertible Notes Pay Off Big:** Amazon’s initial $6.2 billion investment in convertible notes, structured as debt, has ballooned in value to $97.9 billion, showcasing a highly effective strategy to capitalize on Anthropic’s skyrocketing valuation while also securing massive future cloud commitments.
- **Dual Benefit: Equity & Ecosystem Lock-in:** Both Amazon and Google aren’t just gaining equity; they’re also locking in Anthropic for massive long-term cloud spending ($110B+ for AWS, $114B+ for Google Cloud), highlighting a new model where infrastructure providers become kingmakers and beneficiaries in the AI arms race.
Anthropic’s IPO: A New Blueprint for AI Riches
The impending public offering of Anthropic, a leading artificial intelligence contender, is poised to reshape the tech investment landscape. While the usual suspects among venture capital firms — Menlo Ventures, Sequoia, Sound Ventures, and Spark Capital — are undoubtedly looking at multi-billion dollar returns, the true story of Anthropic’s IPO is a departure from the traditional script. The S-1 filing reveals that the titans of cloud computing, Amazon and Google, have strategically positioned themselves to be the primary beneficiaries, blurring the lines between investor, partner, and critical infrastructure provider in the burgeoning AI economy.
The $965 Billion Anomaly: Why VCs Hold Smaller Stakes
At a staggering private valuation of $965 billion, Anthropic stands as an unprecedented unicorn. This colossal valuation has fundamentally altered the economics of venture capital stakes. In a typical tech IPO, lead VCs might hold double-digit percentage ownership, a reflection of their early, high-risk investments. However, with Anthropic’s valuation, even a modest 1% stake is worth nearly $10 billion. Consequently, firms like Menlo Ventures, despite holding a substantial $14 billion position, own only about 1.5% of the company. While these are still massive financial wins for the VCs, none meet the 5% threshold typically required for inclusion in the principal stockholders’ table, marking a significant shift in how mega-cap tech IPOs distribute their wealth.
Amazon’s Masterstroke: The Convertible Note Advantage
Amazon emerges as the likely single largest financial winner from Anthropic’s public debut. Their involvement began in 2023 with a commitment to invest up to $4 billion, a figure that has since grown considerably. Critically, much of Amazon’s initial capital infusion was structured as convertible notes – a form of debt designed to convert into equity upon a liquidity event like an IPO. According to the S-1, Amazon holds convertible notes with $6.2 billion in principal outstanding as of June 30, representing Anthropic’s entire debt load.
The genius of this strategy lies in its timing and Anthropic’s meteoric rise. As Anthropic’s valuation soared through successive funding rounds, the intrinsic value of the shares Amazon’s notes would convert into skyrocketed. Amazon’s own financial filings paint a stunning picture: these note holdings, originally a $6.2 billion principal, were valued at an astonishing $97.9 billion by June 30. This seismic shift in value also had accounting implications for Anthropic, which had to record a $72.4 billion non-cash charge on its income statement for the first half of 2026, reflecting the “change in fair value of convertible notes.” While a substantial number of shares (up to 1.84 billion) are earmarked for conversion, a 12% cap on Anthropic’s “partially diluted” share count applies, though Amazon retains the option to waive this limit, indicating further flexibility for future conversions.
Beyond the convertible notes, Amazon further solidified its position by investing an additional $10 billion in nonvoting preferred stock in the second quarter, bringing its total investment to approximately $18 billion. This dual approach of debt-to-equity conversion and direct equity investment showcases a comprehensive strategy to maximize returns.
Beyond Equity: The AWS Revenue Stream
Amazon’s strategic investment isn’t solely about equity gains; it’s also about securing long-term revenue. Anthropic has committed to spending at least $110 billion on Amazon Web Services (AWS) over the next decade. This colossal commitment ensures a steady, massive revenue stream for Amazon, illustrating how cloud providers are leveraging their infrastructure dominance to become indispensable partners – and beneficiaries – of the AI revolution.
Google’s Dual Play: Cloud Commitments and Diluted but Significant Equity
Google has also executed a similar dual-benefit strategy. While its early stake was significant – reportedly around 14% as of early last year – subsequent, massive funding rounds have likely diluted its current ownership to an estimated 5.6%. Nevertheless, Google has continued to invest heavily, including an additional $10 billion in April. This persistent investment underscores Google’s belief in Anthropic’s potential. More importantly, Google has secured an even larger cloud commitment from Anthropic: at least $114 billion through 2033. This ensures that a substantial portion of Anthropic’s operational spend will flow directly back into Google’s coffers, cementing a symbiotic relationship where Google profits both from Anthropic’s success and its operational needs.
The Shifting Landscape: Hyperscalers as Kingmakers and Competitors
The Anthropic IPO case is a vivid illustration of a new paradigm in tech investment, where cloud giants are not just venture capitalists but strategic ecosystem enablers. They provide the foundational computing power that AI companies, with their insatiable demand for processing, absolutely require. By investing early and heavily, Amazon and Google gain privileged access to burgeoning AI innovators, securing both equity upside and long-term, high-value cloud contracts.
However, this model isn’t without its complexities. The S-1 filing itself contains a pertinent warning: some of these cloud providers also develop their own rival AI models. This creates a fascinating dynamic where a key investor and essential service provider could simultaneously be a direct competitor, raising questions about potential conflicts of interest and strategic alignment as the AI landscape continues to evolve.
Bottom Line:
Anthropic’s IPO is more than just another tech listing; it’s a profound signal of a new investment era in artificial intelligence. While traditional venture capital firms will reap significant returns, the unprecedented scale of Anthropic’s valuation, combined with the strategic acumen of Amazon and Google, positions these hyperscalers as the ultimate beneficiaries. By coupling massive equity investments, often structured for maximum upside, with colossal, long-term cloud computing commitments, Amazon and Google are not merely investors but kingmakers, cementing their indispensable role at the very foundation of the AI revolution while simultaneously navigating the complex terrain of partnership and competition.
{content}
Source:{feed_title}