The history of confidential IPO filings — why every major company files in secret now

Confidential IPO Filings Are Now Standard Practice—Here's Why

Every major company going public now files its IPO paperwork in secret first. Anthropic did it on June 1. SpaceX did the same thing weeks before its public filing. This isn't a conspiracy—it's become routine practice, and the regulatory path to get here is worth understanding.

What confidential filing actually means

A confidential IPO filing doesn't mean the company IPOs in secret. It means the company submits a draft S-1 registration statement to the SEC for private staff review before releasing the prospectus publicly on EDGAR, where hedge funds and journalists can download it. This lets companies work through regulatory issues with the SEC quietly, so the final public filing is clean. Any stumbling blocks get resolved in advance.

How we got here

Before 2012, S-1s became public early in the process. This was great for journalists but brutal for companies—if anything looked wrong in the filing, it could sink the IPO before launch. Public failure to go public read as weakness. That dynamic changed with the 2012 Jobs Act, which created a new category called "emerging growth companies" (EGCs) for companies under $1 billion in revenue and gave them permission to file confidentially.

The real inflection came in 2017, when Trump-era SEC staff expanded confidential filing to all issuers, regardless of revenue size. This faced no strong opposition. By then, mega-cap growth companies like Uber, Airbnb, DoorDash, and Palantir were approaching IPO but had unprecedented business models and uncertain margin profiles. Confidential filing let them test the waters with public market investors without announcing a formal IPO attempt to the world.

The expansion keeps growing

In 2025, under Trump two, the SEC expanded confidential filing rules again to cover follow-on stock offerings, new security classes, spinoffs, and other capital markets transactions. Companies can now run these deals through private SEC review before going to market.

Why this matters

Public markets have been losing companies to private capital for years. Mega-fund VCs, crossover investors, and hyperscalers can now deploy billions into private companies indefinitely. Exchanges and public market investors want these companies to go public. Confidential filing removes friction from that process—it speeds up time to market and lets companies coordinate quietly with their future public shareholders.

The mechanism preserves investor protections because all traditional financial data must be released before money changes hands. It just removes the high-wire act of announcing an IPO attempt publicly before the SEC has signed off.