IPO Watch
IPO Watch
OpenAI
$852B Q1 2027 S-1 Filed AI
The most anticipated. The most complicated.

The S-1 arrived at the SEC on June 8, 2026 — one week after Anthropic's. The symbolism was not lost on anyone who has followed this rivalry. OpenAI, the company that invented the modern AI race, filed second.

The structural problem is not the revenue. At $25 billion in annualised revenue, OpenAI is a serious business. The structural problem is what happens to that revenue number when it goes through a GAAP accounting exercise. CFO Sarah Friar has guided to $14 billion non-GAAP losses for 2026. The GAAP number, accounting for stock-based compensation and restructuring costs from the non-profit to public benefit corporation conversion, is estimated at $25-26 billion. Public market institutional investors will see that number and reprice accordingly.

Then there is Apple. The trade secrets lawsuit filed in July 2026 created what securities lawyers call a material disclosure obligation — meaning it must be disclosed in the S-1, prominently, as a risk factor. Active litigation of this scale, from a company with $162 billion in cash and a litigation team that does not bluff, is not a footnote. It is a chapter.

The FreeMalta read: OpenAI follows Anthropic by roughly one quarter — late Q1 2027 at the median. The $1 trillion floor is Altman's public position, not necessarily what the bankers are modelling. Day one will be strong. Ninety days later is the real test.

Catalysts
ChatGPT Enterprise seat growth accelerating. GPT-5.6 performance metrics. $25B ARR run-rate. PBC conversion completing removes structural overhang.
Risks
Apple trade secrets lawsuit — material disclosure risk and potential delay. $25-26B GAAP loss in 2026 will shock public market pricing. CFO has cautioned company is not ready. Non-profit to PBC conversion adds regulatory timeline uncertainty.
FreeMalta Verdict
Follows Anthropic by one quarter. Apple lawsuit is the wildcard. $1T floor is political, not financial.
When is the OpenAI IPO?
OpenAI filed a confidential S-1 with the SEC on June 8, 2026. The most likely listing window is Q1 2027, though the Apple lawsuit and corporate restructuring could push this later.
What is OpenAI's valuation?
OpenAI's most recent private valuation is $852 billion, set in March 2026. Sam Altman has stated he will not list below $1 trillion.
Who owns OpenAI?
OpenAI is majority-controlled by its non-profit parent entity, with Microsoft holding approximately 49% of profit participation rights. The company is converting to a public benefit corporation ahead of its IPO.
Will the Apple lawsuit affect the OpenAI IPO?
The Apple trade secrets lawsuit filed in July 2026 creates a material disclosure obligation in OpenAI's S-1 filing. Securities lawyers consider it a significant risk factor that could delay the IPO or affect pricing.
What does OpenAI do?
OpenAI develops frontier AI systems including the GPT model family and ChatGPT. Its enterprise products serve Fortune 500 companies globally, with annualised revenue of approximately $25 billion as of mid-2026.
View OpenAI in The Garage
Disclaimer: This page is editorial analysis, not financial advice. Valuations are from private market transactions, secondary sales, and media reports — not public market pricing. IPO timelines are speculative. FreeMalta is an OpenAI Select Partner but has no financial relationship with any company listed on this page. Do your own research before making any investment decision.