OpenAI files confidentially for IPO, following Anthropic

Overview

OpenAI confidentially filed a draft registration statement with the U.S. Securities and Exchange Commission on June 8, 2026, the first formal step toward a public stock listing. The move came a little more than a week after rival Anthropic made the same filing, lining up the two most-watched AI companies for Wall Street debuts at the same time. OpenAI was last valued at $852 billion and serves roughly 900 million weekly active users, though the company said it has not set a timeline and warned a listing might take a while.

Key Takeaways

OpenAI submitted a confidential draft registration statement to the SEC on June 8, 2026, the standard private first step before a company sells shares to the public.
The filing followed rival Anthropic's identical confidential filing about a week earlier on June 1, putting both leading AI firms on a path to public markets at once.
OpenAI told investors it has not decided on timing and that a listing might take a while, since some plans are easier to run as a private company.
Going public would let everyday investors buy shares in OpenAI but would also force the company to disclose detailed finances it now keeps private.
ChatGPT reaches about 900 million weekly active users, one of the largest audiences of any AI product and a core part of OpenAI's pitch to investors.

Stats & Key Facts

#$852 billion: OpenAI's last post-money valuation, set in a March 2026 funding round.
#$880 billion: roughly where OpenAI shares traded on secondary markets in April 2026.
#$1 trillion: the valuation Anthropic recently reached on a retail secondary platform, briefly topping OpenAI by that measure.
#900 million: approximate weekly active users of ChatGPT.
#123%: Anthropic's year-to-date valuation appreciation, against 11.3% for OpenAI.
#$122 billion: size of OpenAI's March 2026 funding round, among the largest on record in Silicon Valley.

What a Confidential SEC Filing Actually Means

OpenAI did not sell stock this week. It took a quiet, early procedural step.

A draft registration statement is a private document a company sends to the U.S. Securities and Exchange Commission before any public stock sale. It lets regulators review the paperwork behind closed doors while the company keeps its finances confidential. Nothing about the offering becomes public at this stage, and no shares trade.

OpenAI announced the filing in a blog post and said it expected the news to leak anyway. The company stressed it has not chosen a date and that a listing might be far off. In plain terms, this is the opening move in a long process, not a launch.

OpenAI Files Days After Rival Anthropic

The timing put two AI leaders on the same track within days of each other.

›Anthropic made its own confidential filing about a week earlier, on June 1, 2026.
›OpenAI followed on June 8, 2026, the second of the two top AI labs to signal a public-market path.
›Both companies are now lined up for Wall Street debuts at the same time, sharpening an already close rivalry.
›Neither filing locks in a date, so the order of any eventual listing is still open.

Inside OpenAI's $852 Billion Valuation

Private and secondary-market figures frame what investors think the company is worth.

OpenAI was last valued at $852 billion in a post-money funding round completed in March 2026. On secondary markets, where existing shareholders sell stock privately, the company traded near $880 billion in April 2026. Those are private estimates, not a price set by public buyers.

A real public valuation would only be fixed later, during the investor roadshow that precedes an actual share sale. Until then, every figure is a snapshot from private deals rather than a market price open to anyone.

How OpenAI and Anthropic Stack Up

The two firms are close in stature but moving at different speeds.

›Anthropic recently surged to roughly a $1 trillion valuation on a retail secondary platform, briefly passing OpenAI by that measure.
›Anthropic's valuation rose about 123% year to date, against 11.3% for OpenAI.
›OpenAI's roughly 900 million weekly ChatGPT users give it one of the widest consumer footprints in AI.
›Both raised enormous sums privately before filing, underscoring how much capital the AI race now demands.

What Going Public Would Change for OpenAI

A listing brings access to capital but also new obligations.

A public offering would let everyday investors buy shares in one of the firms driving the current AI wave, a chance that has so far been limited to large private backers. It would also give OpenAI a new way to raise money and reward early employees and investors who hold stock.

The trade-off is disclosure. Public companies must report detailed financial results every quarter, including revenue and losses that OpenAI keeps confidential today. OpenAI itself noted that some of its plans are easier to pursue while private, one reason it warned the timeline is uncertain.

A Broader Rush of Tech Companies Toward Public Markets

The two AI filings are part of a larger wave building in 2026.

The OpenAI and Anthropic filings sit alongside a broader group of large private companies preparing to go public in the second half of 2026. The lineup has drawn comparisons to earlier technology booms, when a cluster of high-profile firms reached the market in a short span.

For non-technical readers, the signal is simple: investor appetite for AI and tech stocks looks strong enough that the biggest private names are testing the door to public markets. Whether OpenAI walks through it soon, or waits, is still its own call.

Frequently Asked Questions

Did OpenAI go public on June 8, 2026?

No. OpenAI only submitted a confidential draft registration statement to the SEC, the early private step before any public stock sale. No shares were sold and no date was set.

When will OpenAI's IPO actually happen?

OpenAI has not announced a date. The company said it has not decided on timing and that a listing might take a while, since some plans are easier to run as a private company.

How is OpenAI's situation different from Anthropic's?

Both filed confidentially within about a week of each other, with Anthropic first on June 1 and OpenAI on June 8. Anthropic recently reached roughly a $1 trillion valuation on a retail secondary platform, briefly topping OpenAI's $852 billion mark.

What is OpenAI valued at right now?

OpenAI's last formal valuation was $852 billion from a March 2026 funding round, and its shares traded near $880 billion on secondary markets in April. A true public price would only be set during a later investor roadshow.

What would change if OpenAI went public?

Everyday investors would be able to buy OpenAI shares, and the company would gain a new way to raise money. In return, OpenAI would have to disclose detailed quarterly financial results it currently keeps private.

OpenAI's confidential filing puts it and Anthropic on parallel paths toward public markets, though OpenAI has signaled a listing might still be far off. For now the move is a quiet first step rather than a debut, and the real valuation will be decided only when shares eventually trade.