Who Owns Claude AI? Anthropic, Its Founders and the Trust That Picks the Board
Updated October 28, 2026, two days after Anthropic’s public IPO filing
Claude AI is owned by Anthropic, PBC, the San Francisco AI company that built it and launched it in March 2023. Anthropic has no majority owner. Its IPO filing of October 26, 2026 shows seven co-founders holding about 10% of the shares but 50.1% of the shareholder vote, while an independent trust elects most of the board.
Amazon and Google are large investors, but neither owns Claude and neither gets a vote. Anthropic is still private until its shares start trading on Nasdaq under the ticker ANT, which Bloomberg reports is expected in November.
Key takeaways
- Each co-founder holds roughly 232 million to 244 million shares, about 1.69 billion combined (S-1 ownership table, as of September 30, 2026).
- Amazon’s convertible notes stop converting once it would own 12% of Anthropic, a cap Amazon can waive. Google’s latest deal caps it at 14.99% (S-1, via TechCrunch and Fortune).
- No venture firm owns 5% or more, so none appears in the S-1’s principal stockholders table (TechCrunch, October 2026).
- Anthropic’s last private price valued it at $965 billion after a $65 billion Series H on May 28, 2026 (CNBC).
Who owns Claude AI? Three answers, not one
“Who owns Claude” hides three questions: who owns the product, who owns the company, and who gets to steer it. At most firms one group answers all three. At Anthropic, each answer points somewhere different.
The product. Claude (the models, the apps, the API and the brand) belongs to Anthropic outright. Amazon Bedrock and Google Cloud’s Vertex AI sell access to Claude, but selling access isn’t owning it.
The money. Anthropic’s shares are spread across founders, employees, venture funds, sovereign wealth funds and two cloud giants. Nobody holds a majority, and the two biggest holders are probably Amazon or Google, whose exact share counts the filing leaves blank.
The control. Votes and board seats are cut loose from money on purpose: one share held by the founders carries 50.1% of the shareholder vote, and one share held by the Long-Term Benefit Trust lets it pick a majority of directors.
100% owned by Anthropic, PBC
Money (economic stake)
Class A: co-founders (about 10% combined), employees, venture and sovereign funds (each under 5%), public buyers after the IPO
Class N (no vote): Amazon (capped at 12%), Google (capped at 14.99%), Anthropic Public Benefit Fund (about 5%)
Votes (shareholder meetings)
Class F, one share: Founder LLC of the seven co-founders, 50.1%
Class A, all holders together: never more than 49.9%
Class E (employees): votes only on trust-related matters
Board seats
Class T, one share: Long-Term Benefit Trust elects a majority of directors
Remaining directors: elected by shareholders, where the founders’ 50.1% decides
The cap table, as far as the filing shows it
The S-1’s principal stockholders table only lists directors, officers and anyone holding more than 5% of a voting class. That one rule explains most of the gaps you’ll see in news coverage.
Amazon and Google will hold non-voting Class N stock after the offering, so they don’t appear. Venture firms each hold under 5%, so they don’t appear either. What’s left is the founders and the special voting holders.
| Holder | Share class | Economic stake | Voting power | Status |
|---|---|---|---|---|
| Seven co-founders | Class A, plus one Class F share via Founder LLC | About 1.69 billion shares, roughly 10% | 50.1% through Class F, plus their own Class A votes | Disclosed (share counts) |
| Amazon | Class N after notes convert, plus non-voting preferred | Up to 12% (waivable cap) | None | Cap disclosed, % not |
| Google (Alphabet) | Class N | Up to 14.99% (cap) | None | Cap disclosed, % not |
| Anthropic Public Benefit Fund | Class N | 846.8 million shares, about 5% | None | Disclosed |
| Long-Term Benefit Trust | One Class T share | None | Elects a majority of the board | Disclosed |
| Venture funds (Menlo, Sequoia, Spark, Sound and others) | Preferred, converting into common stock | Each below 5% | Share of the 49.9% pool | Below disclosure threshold |
| Other employees | Options and RSUs, plus Class E | Not disclosed in total | Class E: trust matters only | Partly disclosed |
| IPO buyers | Class A | Not set | Share of the 49.9% pool | Price range not yet filed |
Sources: Anthropic S-1 (October 26, 2026) as reported by Fortune and TechCrunch. The 10% and 5% figures use Fortune’s estimate of about 16.9 billion fully diluted shares as of June 30, 2026.
Who is the largest shareholder of Anthropic?
Nobody outside Anthropic can say for certain, because the S-1 doesn’t give Amazon’s or Google’s share counts. Going by the caps, the largest economic owner is most likely Amazon or Google, since each is allowed to hold more than the seven founders put together.
But the largest owner and the controlling owner are different people here. Amazon and Google hold no votes. The founders’ LLC, with roughly a tenth of the economics, holds the majority of them.
The missing venture names surprise people, because lead VCs usually hold double-digit stakes at a tech IPO. At Anthropic, TechCrunch notes that Menlo Ventures’ position, worth roughly $14 billion on recent Bloomberg figures, is only about 1.5% of the company. A 1% stake is worth nearly $10 billion at the last private price.
The reason is how fast the price climbed. Anthropic has raised lettered rounds all the way from Series A to Series H (if the letters are unfamiliar, here’s how lettered funding rounds like Series C work). Each round sold new shares, shrinking every earlier holder’s slice.
That’s a more than 15-fold rise in about 14 months. Any stake figure from early 2025 describes a company worth less than a tenth of its last private price, which matters a lot for the Google question below.
Is Claude backed by Amazon?
Yes. Amazon is one of Anthropic’s two biggest outside backers, but it doesn’t own Claude and it has no vote. It first committed up to $4 billion in 2023.
By TechCrunch’s count from Amazon’s own filings, Amazon has now put in about $18 billion: roughly $8 billion in convertible notes between 2023 and 2025, plus $10 billion of non-voting preferred stock bought in the second quarter of 2026.
How much of Anthropic is owned by Amazon?
At most about 12% at the IPO, unless Amazon chooses to waive its cap. The S-1 shows Amazon holding notes with $6.2 billion of principal outstanding as of June 30, 2026, which is Anthropic’s entire debt load.
Those notes can convert into roughly 1.84 billion non-voting shares, but conversion stops at 12% of Anthropic’s partially diluted share count. Any notes blocked by the cap stay outstanding and can convert later. On Amazon’s own books, the notes were valued at $97.9 billion on June 30.
The bigger tie may be commercial. TechCrunch reports Anthropic has committed to spend at least $110 billion with AWS over the next decade. If you want the context for why cloud deals matter so much to Amazon, see our breakdown of how Amazon makes money.
Did Google buy Anthropic?
No. Google’s parent Alphabet is a minority investor in Anthropic, not its owner, and it will hold non-voting Class N stock after the IPO. In April 2026 Google committed up to $40 billion more, with $10 billion paid upfront and $30 billion tied to milestones, according to Fortune.
Google is also a supplier. NBC News reports the S-1 lists plans to spend $115 billion with Google on computing through 2033. So Google is Anthropic’s shareholder and its landlord at the same time, while Gemini competes head-on with Claude.
Does Google own 14% of Anthropic?
Not necessarily any more. The 14% figure comes from court documents reported by The New York Times in early 2025, when Google was capped at 15% with no voting rights. Several far larger funding rounds have happened since, so that number is stale.
You’ll find at least six different stake figures quoted for Amazon and Google this week. They measure different things:
| Figure | Source and date | What it actually measures |
|---|---|---|
| Google: 14% | New York Times, court filings, early 2025 | A real holding, but measured when Anthropic was worth about a sixteenth of its last private price |
| Google: about 5.6% | PitchBook analyst Harrison Rolfes, to TechCrunch, October 2026 | An outside estimate of dilution; the method isn’t public |
| Google: 14.99% | S-1, via Fortune, October 2026 | A contractual ceiling, not a holding |
| Amazon: mid-to-high teens | Fortune estimate from Amazon’s filings, June 2026 | A pre-S-1 guess, made before the 12% cap was public |
| Amazon: 12% | S-1, October 2026 | The ceiling on note conversion, which Amazon can waive |
| Amazon: $97.9 billion | Amazon quarterly filing, June 30, 2026 | The accounting value of its notes, not a percentage |
My read: Google’s true stake probably sits somewhere between PitchBook’s estimate and the 14.99% cap, because the April money would have bought new shares after the dilution PitchBook is modelling. That’s an inference, not a disclosure. Until the amended S-1 fills in the post-IPO share count, nobody should quote one Google number as fact.
Who founded Claude AI?
Claude was created by Anthropic, which seven people founded in January 2021 after leaving OpenAI. Dario Amodei had been OpenAI’s vice president of research. The S-1 lists the seven with almost identical stakes:
| Co-founder | Current role | Shares | Approx. stake* |
|---|---|---|---|
| Tom Brown | Chief compute officer | 244,173,040 | 1.44% |
| Chris Olah | Interpretability research lead | 242,882,420 | 1.44% |
| Jared Kaplan | Chief science officer | 242,351,170 | 1.43% |
| Jack Clark | Head of the Anthropic Institute | 242,271,840 | 1.43% |
| Daniela Amodei | President and board chair | 241,408,940 | 1.43% |
| Dario Amodei | CEO | 240,637,980 | 1.42% |
| Sam McCandlish | Chief architect | 231,809,780 | 1.37% |
Shares from the S-1 beneficial ownership table as of September 30, 2026, as reported by Fortune, including options and RSUs vesting within 60 days. *Our calculation against roughly 16.9 billion fully diluted shares; the post-IPO count will be higher.
Dario Amodei’s total listing is 245 million shares, but 4.6 million of those sit in donor-advised funds. He votes them under proxy agreements but no longer owns them, which is why he ranks sixth of seven in the table.
One name trips people up. Benjamin Mann has been at Anthropic since day one, Wikipedia lists him as a founder, and the filing itself admits he’s often called a co-founder. But the S-1’s definition of co-founders excludes him, he isn’t in the Founder LLC, and his stake isn’t disclosed.
How one share gives the founders 50.1% of the vote
The seven co-founders own a company called the Founder LLC, which holds a single Class F share. That share carries 50.1% of the vote on almost everything shareholders decide, has no economic value and can’t be diluted by new stock.
If most of the seven can’t agree, the share votes in the same proportions as public Class A holders. Class F disappears once fewer than three co-founders remain in the LLC for 90 days.
Here’s the detail most coverage skips. A co-founder stays in the LLC as long as they keep 2% of the Class A shares they held at the IPO. Each has also pledged to give away 80% of their Anthropic equity, a pledge the S-1 calls voluntary and revocable.
Put those rules together and you can see how far economics and control can drift apart:
| Scenario | Founders’ economic stake | Founders’ vote | Votes per unit of stake |
|---|---|---|---|
| Today (S-1 table) | About 10% | 50.1%+ | About 5x |
| All 80% pledges completed | About 2% | 50.1%+ | About 25x |
| Each keeps only the 2% minimum | About 0.2% | 50.1% | About 250x |
Our calculation: 1.69 billion founder shares against about 16.9 billion fully diluted shares (Fortune’s estimate from the S-1). Ignores shares the founders sell in the IPO and new shares issued, both of which would push the stake lower.
The bottom row is a theoretical floor, not a forecast. Still, the S-1 itself warns that donations will shrink the founders’ economic interest while leaving their voting control unchanged, which could pull their interests away from other shareholders’.
The Long-Term Benefit Trust: a controlling owner with nothing to sell
The trust holds one Class T share, created by a 1-for-1,000 reverse split on September 17, 2026. That share lets it elect and remove a majority of Anthropic’s directors. It has no economic rights and no expiry date.
Trustees can’t buy or hold Anthropic securities, and their pay can’t depend on profits, according to the S-1. Fortune lists four of the five seats as filled: chair Neil “Buddy” Shah (CEO of the Clinton Health Access Initiative), Richard Fontaine of the Center for a New American Security, former Federal Reserve chair Ben Bernanke (joined June 2026) and Harvard physicist Christopher Stubbs (joined October 2026).
The trust exists to keep the board balancing shareholder returns against what the trust agreement calls “the responsible development and maintenance of advanced AI for the long-term benefit of humanity.” That same purpose sits in Anthropic’s charter as a Delaware public benefit corporation.
Because one group controls most of the vote, Anthropic will count as a “controlled company” under Nasdaq rules. Fortune reports the company says it currently relies on the looser governance exemptions that status allows.
Can you buy Claude AI stock?
Not yet. Anthropic plans to list Class A common stock on the Nasdaq Global Select Market under the symbol ANT, but the number of shares and the price range haven’t been set, according to its October 26 announcement. Bloomberg reports marketing to investors could start as soon as the week of November 9.
Know what you’d be buying. Class A shares carry economic rights and one vote each, but all Class A holders together are capped at 49.9% of the vote. The S-1 registration statement says Class A holders generally won’t be able to affect the outcome of shareholder votes or director elections, however they vote.
Founders face a standard 180-day lock-up after listing, which Goldman Sachs and Morgan Stanley can waive early. And treat any offer of “pre-IPO Anthropic shares” from a stranger with real suspicion; the S-1 and the underwriters’ prospectus are the only official offering documents.
OpenAI, by contrast, has pushed its own listing to next year, Axios reports. If you’re comparing the two businesses, our explainer on how ChatGPT makes money covers OpenAI’s side. None of this is investment advice.
Other questions people ask
Which AI does Elon Musk own?
Elon Musk’s AI company is xAI, maker of the Grok chatbot. It now operates as SpaceX.AI, a subsidiary of SpaceX, which listed in June 2026 with Musk holding about 82.4% of the vote, Fortune reports. Oddly, Anthropic’s S-1 shows it agreed to buy up to $120.5 billion of computing from SpaceX.AI.
Who are the big 4 of AI?
There’s no official “big 4.” The phrase usually means the labs building the most capable general models: OpenAI, Google DeepMind, Anthropic and Meta, with Musk’s xAI often swapped in. By last private valuation, Anthropic ($965 billion in May) now sits above OpenAI ($852 billion in March), per CNBC.
What changes once the price range is filed
Anthropic will file an amended S-1 with a price range, the number of shares on offer and a post-IPO share count before it starts marketing. That’s the moment the Amazon and Google percentages stop being caps and estimates and become real numbers. Bookmark that filing rather than any headline figure, this one included.
The control answer won’t move, though. As long as three of the seven co-founders stay in the LLC and the trust keeps its Class T share, the people with the most money in Anthropic and the people who run it will stay different groups. For Claude’s users, that’s the part of the ownership story that matters most.
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