Anthropic IPO: Which Major Investors Will Profit From the ANT Listing?

According to Dealroom estimates, at a $1.5 trillion valuation, Google and Amazon hold approximately 15% and 12% of Anthropic, respectively, translating to values of about $225 billion and $180 billion.

The employee option pool and the seven founders hold about 11% and 10%, respectively, corresponding to values of roughly $165 billion and $150 billion, while other shareholders hold a combined total of around 36%.

[Source: Dealroom]

It should be noted that the above data represents third-party estimates and not the final ownership stakes confirmed by Anthropic in its IPO filing.

Amazon: Equity Investment alongside Cloud Computing Collaboration

Amazon is a key strategic investor in Anthropic and its cloud computing infrastructure provider, with collaboration spanning AWS cloud services and Amazon's proprietary AI chips such as Trainium.

According to the IPO filing, as of June 30, 2026, Amazon held about $6.2 billion in principal of outstanding convertible notes, which can be converted into Class N non-voting shares under the agreement, with potential conversions totaling roughly 1.84 billion shares, subject to a 12% ownership cap that Amazon may waive.

PitchBook estimates that if the relevant cap is waived, Amazon's potential stake could approach 20%. This figure is a conditional estimate rather than a confirmed post-IPO ownership percentage.

Additionally, Amazon made a separate $10 billion investment in non-voting preferred stock in the second quarter of 2026. Meanwhile, Anthropic committed to paying AWS at least $110 billion between May 2026 and April 2036. Amazon stands to benefit from both its equity investment and demand for its cloud computing and AI chip offerings.

Google: Equity Ownership alongside Compute Power Partnership

Alphabet is also a major investor in Anthropic, supplying compute support via Google Cloud and TPU chips.

According to the IPO filing, Google has a potential financing facility of up to $20 billion, but had drawn down nothing as of June 30, 2026, with access to funds subject to conditions such as compute partnerships and revenue milestones.

Furthermore, Google has an option to subscribe to up to $10 billion in non-voting shares at the offer price concurrently with Anthropic's IPO. Exercising this option would proportionally reduce the $20 billion financing facility.

The relevant agreements also feature a 14.99% ownership cap, which Google may choose to waive, leaving its final stake undecided.

Spark Capital: Long-Term Participation Across Multiple Funding Rounds

According to Anthropic's IPO filing and media reports, Spark Capital has participated in six funding rounds for Anthropic since 2023, investing a cumulative total of approximately $777 million, with split-adjusted share subscription prices ranging from roughly $1.12 to $58.90 per share.

PitchBook estimates that if Anthropic reaches a $1.5 trillion valuation, Spark's stake would have a theoretical value of about $10.9 billion. This does not represent realized gains, as final returns remain contingent on IPO pricing, share dilution, and post-listing stock performance.

Spark Capital General Partner Yasmin Razavi led the investments and serves on Anthropic's board of directors.

ICONIQ, Menlo Ventures, and Other Institutions

Beyond Amazon and Google, Anthropic has also secured support from numerous venture capital firms and financial institutions.

ICONIQ: According to TechCrunch, ICONIQ participated in Anthropic's funding round in 2025 with an investment of approximately $6 billion, making it one of the company's major investors.

Menlo Ventures: An early investor that led the Series D round and participated in subsequent rounds. Reports indicate its cumulative investment exceeds $1 billion.

Coatue Management: Participated in multiple funding rounds for Anthropic and co-led a $30 billion Series G round with GIC in February 2026.

Lightspeed Venture Partners: Participated in multiple funding rounds for Anthropic, leading a $3.5 billion Series E round in 2025 and subsequently participating in a $13 billion Series F round.

Fidelity, Blackstone, and GIC: All participated in Anthropic's funding rounds. Among them, Fidelity co-led the Series F round alongside ICONIQ and Lightspeed, while GIC co-led the Series G round with Coatue.

As the IPO filing does not disclose complete ownership stakes for all institutions, the aforementioned investment amounts cannot be used directly to determine their current shareholding size.

[Source: SEC]

Anthropic's seven co-founders are Dario Amodei, Daniela Amodei, Tom Brown, Jack Clark, Jared Kaplan, Sam McCandlish, and Christopher Olah.

According to the IPO filings, Anthropic plans to issue one special share of Class F common stock to Founder LLC, an entity formed by the seven founders. This share carries no economic rights but holds 50.1% of the company's total voting power, allowing the founders to maintain majority voting control over general shareholder matters.

In addition, Anthropic's Long-Term Benefit Trust holds special Class T shares, which carry the right to elect and remove a majority of the board members.

As a result, the founders hold voting power significantly higher than their economic ownership stake, while the Long-Term Benefit Trust retains decisive control over a majority of board seats. This arrangement may limit the influence of ordinary shareholders over corporate decision-making.

The market's current valuation expectation for Anthropic is approximately $1.5 trillion to $2 trillion, but the final offering valuation and listing performance remain uncertain.

Regarding equity, investors need to pay attention to the impact of convertible security conversions and subsequent financing on the number of shares and ownership percentages. Regarding corporate governance, attention should also be paid to the influence of the founders and the Long-Term Benefit Trust on company decision-making, as well as the actual scope for common shareholders to participate in governance.

In addition, Amazon and Google are both investors and key cloud service providers. Investors also need to evaluate Anthropic's reliance on external computing power providers and whether AI infrastructure investments can translate into sustained profitability.

This content was translated using AI and reviewed for clarity. It is for informational purposes only.