# Anthropic files S‑1 for planned Nasdaq IPO

> Anthropic, the AI safety‑focused startup, filed a Form S‑1 with the SEC on Oct 26 2026 to list Class A shares on Nasdaq under the ticker “ANT”.

Oossa · 2026-10-26 · https://oossa.com/en/anthropic-files-s-1-for-planned-nasdaq-ipo

Anthropic, PBC announced that it has lodged a registration statement on Form S‑1 with the U.S. Securities and Exchange Commission. The filing signals the company’s intent to sell Class A common stock to the public and to list on the Nasdaq Global Select Market under the symbol “ANT”. The filing does not yet set a share count or price range, and the securities cannot be sold until the SEC declares the registration effective.

## How Anthropic’s corporate structure differs

Anthropic is organized as a public benefit corporation, a Delaware legal form that requires it to balance profit with a stated public‑benefit purpose – in this case, the responsible development of advanced AI. The company created a Long‑Term Benefit Trust (LTBT) that can appoint a majority of its board through a special Class T stock. The LTBT has no economic stake and is meant to keep AI safety at the forefront of decisions.

Co‑founders Dario Amodei and Daniela Amodei, together with five other founders, will hold a single share of Class F stock through a Founder LLC. That share carries 50.1 % of the voting power, giving the founders control over director elections while still having no economic rights. Employees will receive Class E stock, which votes only on limited matters and also lacks economic rights.

## What comes next

The prospectus will be made available by Goldman Sachs and Morgan Stanley once the registration becomes effective. Potential investors will receive the preliminary prospectus from those banks, not directly from Anthropic. Until the SEC clears the filing, no shares can be bought or sold, and the company cannot claim any proceeds from the offering.

## The facts

- Anthropic filed its Form S‑1 with the SEC on October 26, 2026.
- The company plans to list Class A common stock on Nasdaq under the ticker “ANT”.
- Anthropic is a public benefit corporation with a Long‑Term Benefit Trust that can elect a majority of its board.
- Founders will hold a single Class F share that gives them 50.1 % of voting power but no economic rights.
- Goldman Sachs and Morgan Stanley are the banks handling the prospectus distribution.

## Why it matters

If the IPO proceeds, everyday users may see Anthropic’s AI models offered alongside those of bigger rivals on public exchanges, making the company’s financial health more transparent. The unusual governance structure means the firm’s safety goals are legally baked in, which could affect how its products are developed and priced. However, until the SEC declares the registration effective, the exact share price, number of shares, and timing remain unknown.

## Sources & references

1. [Anthropic files S-1 with the SEC for proposed initial public offering](https://www.anthropic.com/news/s1-sec) – Anthropic
2. [Anthropic files S-1 paperwork for proposed IPO](https://siliconangle.com/2026/10/26/anthropic-files-s-1-paperwork-for-proposed-ipo/) – SiliconANGLE, 2026-10-26
3. [Anthropic S-1](https://www.sec.gov/Archives/edgar/data/2130357/000162828026067168/anthropicpbc-sx1.htm) – Hacker News, 2026-10-26
4. [Anthropic’s IPO filing lays out a plan to ‘revolutionize every area of human endeavor’ with AI](https://www.theverge.com/ai-artificial-intelligence/1018476/anthropic-ipo-details-s1-filed-sec) – The Verge, 2026-10-26
5. [The Anthropic IPO Is Also a Doomsday Primer](https://www.wired.com/story/the-anthropic-ipo-is-also-a-doomsday-primer/) – Wired, 2026-10-26

Last updated: 2026-10-26