Amazon's Anthropic notes could outvalue venture stakes in an IPO

Amazon's filings valued its convertible notes in Anthropic at $97.9 billion as of June 30, a figure that could make the notes more valuable than individual venture investors' stakes if Anthropic goes public. Anthropic's S-1 put the notes' principal at $6.2 billion and said they could convert into as many as 1.84 billion shares.

The S-1 described the notes as Anthropic's entire debt load. The figures put a sharp contrast between the underlying debt and its reported fair value. Amazon recorded changes in the value of convertible notes, derivative liabilities and SAFEs on an income-statement line that totaled $72.4 billion for the first half of 2026.

That total covers the specified instruments together; it is not a valuation of the Anthropic notes alone. Amazon also invested $10 billion in Anthropic nonvoting preferred stock during the second quarter, according to its quarterly report for the period ending June 30. TechCrunch reported that Amazon first backed Anthropic in 2023 with a commitment to invest up to $4 billion.

Shattered.io separately said Amazon had put $13 billion into the company since 2023 and could add as much as $20 billion more, citing the filing.

Those two accounts describe Amazon's earlier and cumulative involvement differently, and the figures should not be treated as interchangeable: one gives an initial commitment, while the other reports cumulative investment and a possible additional amount. The potential IPO also makes the ownership table consequential.

At Anthropic's reported private valuation of $965 billion, a 1% holding would be worth nearly $10 billion. TechCrunch cited Bloomberg figures estimating Menlo Ventures' position at roughly $14 billion, or about 1.5% of Anthropic.

Anthropic's S-1 did not include venture firms with less than 5% in its principal-stockholders table, so the absence of those firms from that table does not establish that they lack substantial stakes. The coverage emphasizes different parts of the financial picture.

TechCrunch focuses on the conversion value of Amazon's notes and the gap between venture firms' sub-5% stakes and the S-1's ownership threshold. Pluang.com likewise presents Amazon and Google as major potential beneficiaries, but adds claims about cloud-service commitments that the other accounts do not detail.

Shattered.io centers on the reported IPO filing and describes Amazon's cumulative investment and possible additional funding. These emphases point to distinct mechanisms—convertible debt, preferred equity, and possible future investment—rather than a single measure of ownership. Shattered.io reported that Anthropic filed for an IPO on October 26, 2026.

Its account also said Alphabet gave Google an option to buy up to $10 billion of Anthropic Class N common stock at the IPO price. The outlet described early valuation reports as reaching as high as $2 trillion and said Anthropic had not confirmed a date; it also characterized an S-1 without a price range as an early-stage filing.

These are reported claims, not a stated final IPO valuation or confirmed listing schedule. Pluang.com reported that Anthropic had a $110 billion AWS spending commitment and that Google had a cloud-services commitment exceeding $114 billion. Its account also described Google as holding a significant stake.

These reported commitments place Amazon's and Google's commercial ties to Anthropic alongside their financial positions, but the sources do not provide comparable terms for those commitments or establish how they would affect IPO proceeds. The central financial question remains how the notes' conversion terms and other securities translate into equity at a public offering.