Anthropic’s valuation history shows one of the fastest climbs in modern technology, rising from early funding rounds valued in the low billions to a confirmed $965 billion post-money valuation in May 2026. The San Francisco-based public benefit corporation, maker of the Claude AI models, is now preparing for a U.S. IPO that could value it near or above $1 trillion. Investors and observers tracking the AI sector have closely followed every step of this growth.
Anthropic’s Leadership and CEO
Dario Amodei serves as co-founder and Chief Executive Officer of Anthropic. He leads the company’s research direction and strategic vision focused on developing AI systems that are reliable, interpretable, and steerable. His sister, Daniela Amodei, is co-founder and President; she chairs the Board of Directors and oversees research, engineering, product, governance, and commercial execution. The siblings, along with other former OpenAI researchers, founded Anthropic in 2021 in San Francisco as a public benefit corporation dedicated to safely advancing AI.
Anthropic Valuation History Through Major Funding Rounds
Anthropic began raising capital shortly after its founding. Official company announcements confirm the later, higher-valuation rounds that drove the bulk of the increase:
- March 2025 (Series E): Raised $3.5 billion at a $61.5 billion post-money valuation, led by Lightspeed Venture Partners.
- September 2025 (Series F): Raised $13 billion at a $183 billion post-money valuation, led by ICONIQ. Run-rate revenue had grown from roughly $1 billion at the start of 2025 to over $5 billion by August.
- February 2026 (Series G): Raised $30 billion at a $380 billion post-money valuation, led by GIC and Coatue. Run-rate revenue reached $14 billion.
- May 28, 2026 (Series H): Raised $65 billion at a $965 billion post-money valuation, led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital (with co-leads including Capital Group, Coatue, D1 Capital Partners, GIC, ICONIQ, and XN). The company stated that run-rate revenue had crossed $47 billion earlier that month. This round included previously committed investments from hyperscalers such as Amazon.
Earlier rounds (Series A through D in 2021–2024) raised smaller amounts, with reported valuations typically in the low-to-mid single-digit or low-teens billions based on contemporary reporting. Post-money valuations for the 2025–2026 rounds come directly from Anthropic’s own announcements. The Series H figure remains the last fully confirmed private valuation.
Revenue growth underpinned the successive revaluations. Multiples of run-rate revenue generally declined across the later rounds even as absolute valuations rose sharply, reflecting rapid scaling of Claude’s enterprise and coding use cases.
When Is Anthropic Going to IPO?
Anthropic confidentially filed for a U.S. IPO in June 2026 and publicly filed its S-1 registration statement with the SEC on October 26, 2026. It plans to list on the Nasdaq under the ticker symbol ANT.
As of November 10, 2026, the company has launched its roadshow and set an indicative price range of $70 to $78 per share for an offering of 825 million shares. At the high end of the range, the IPO would raise up to approximately $64.4 billion and imply a valuation of about $1.02 trillion based on shares outstanding (with fully diluted figures reported higher in some analyses, up to roughly $1.4 trillion). Cornerstone investors including Google, Nvidia, AMD, and others have agreed to a separate private placement of about $26 billion at the IPO price, bringing potential total proceeds near $90 billion.
Reports indicate the company aims to price the offering around November 18 and begin trading on November 19, 2026. These dates and the final price remain subject to market conditions, investor demand, and regulatory completion. Earlier private discussions had referenced higher potential valuations (in the $1.5–2 trillion range), but the filed range reflects a more modest target amid broader AI-market volatility.
What the Valuation Path Means for Readers
Anthropic’s valuation history illustrates how quickly frontier AI revenue can compound and attract capital. The jump from $61.5 billion in March 2025 to $965 billion in May 2026—roughly 15.7 times in about 14 months—coincided with Claude’s strong enterprise adoption and coding tools. For U.S. investors and technology observers, the upcoming IPO offers a rare chance to gain public-market exposure to a leading AI lab, though it carries the usual risks of a high-growth, high-spending company (including large compute commitments and the inherent uncertainties of advanced AI development).
Readers should monitor the final prospectus amendments, roadshow feedback, and any updates on pricing or timing. Official Anthropic announcements and SEC filings provide the most reliable baseline; reported IPO ranges and trading dates are still subject to change until the offering is priced.
What do you think of Anthropic’s valuation trajectory and its planned IPO—will it mark a new chapter for public AI investing? Share your views in the comments below and stay updated on the latest developments.