IPO watch: what still has to happen before Anthropic lists
Anthropic, the maker of Claude, is widely expected to be the first of the giant AI labs to go public. The date keeps moving, though, and much of what you read is reporting, not company announcements. Here is where things stand.
Disclosure: this site's posts are drafted with AI help. This one was drafted with Claude, which is made by Anthropic. It sticks to published reporting and labels every figure.
What is confirmed
- A confidential filing. Anthropic submitted a draft IPO registration (an S-1) to the SEC confidentially in June, The Next Web reports. A confidential draft lets a company work through regulators' questions before anything is made public.
- The banks. Morgan Stanley and Goldman Sachs were given lead roles in June, and JPMorgan and Citi have since joined, according to The Next Web.
- No public filing yet. As of October 4, no public S-1 had appeared on the SEC's EDGAR database, Yahoo Finance reported.
What is reported, not confirmed
- The timetable moved. In early September, Reuters reported that formal marketing to investors could start in mid-October at the earliest, according to The Next Web. Bloomberg has since reported a mid-November IPO, with the roadshow starting the week of November 9, Yahoo Finance says. Advisers reportedly wanted investors to see third-quarter results first.
- A $2 trillion target. Yahoo Finance says the prospectus reportedly targets a valuation of about $2 trillion. The Next Web says some investors told Reuters a listing could price around that level.
- A $15 billion credit line. Reuters reported Anthropic was working to finalize a $15 billion revolving credit facility, per The Next Web.
Anthropic and the banks declined to comment to Reuters, The Next Web reports, and the plans could change again.
- Confidential filing: done Anthropic submitted a draft S-1 to the SEC confidentially in June. Morgan Stanley and Goldman Sachs lead the deal, joined by JPMorgan and Citi.
- Public filing: not yet No public S-1 was on EDGAR as of October 4. To keep a mid-November schedule, it would need to appear by late October, Yahoo Finance says.
- A 15-day gap Yahoo Finance notes the filing must be public for 15 days before the roadshow can begin. This is when investors first see audited numbers.
- Marketing to investors Bloomberg reported the roadshow could start the week of November 9. Not confirmed by Anthropic.
- Pricing and first trade Reported for mid-November. The price and the amount raised are set at the end of the roadshow, not before.
Sources: The Next Web, Sep 6; Yahoo Finance, Oct 4, citing Bloomberg.
The private-market price tag
Before a listing, shares in companies like Anthropic change hands privately between investors. The Next Web reported Anthropic's implied value in those trades climbing fast this summer. These are not stock-market prices and say little about where an IPO would actually price.
Implied value
- June 2026: $0.965T (reported, unconfirmed)
- July 10: $1.200T (reported, unconfirmed)
- Mid-August: $2.000T (reported, unconfirmed)
Source: The Next Web, Sep 6, 2026.
The rest of the queue
OpenAI's IPO, once rumored for this year, has been pushed to early 2027, TechCrunch reported this week, citing CNBC. That leaves Anthropic as the AI lab most likely to list first.
What to watch
- A public S-1 on EDGAR. That is the first hard confirmation, and the first look at audited financials.
- Whether the roadshow date holds after the filing.
Not financial advice. This is a summary of public reporting. Do not buy or sell anything on the strength of a blog post, including this one.
Sources
- Anthropic's Public S-1 Still Missing From EDGAR as October IPO Window Opens, Yahoo Finance, Oct 4, 2026
- Anthropic will reportedly list days before the US midterm elections, The Next Web, Sep 6, 2026
- OpenAI's revenue is reportedly $20 billion less than previously projected, TechCrunch, Oct 8, 2026
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