When is the Anthropic IPO?

The roadshow is reported to begin the week of November 9, 2026, targeting a pre-Thanksgiving Nasdaq listing. Anthropic confidentially filed its S-1 on June 1, 2026; investor meetings ran October 14. No date is official until the company announces pricing, and timelines can still shift.

What valuation is Anthropic targeting for the IPO?

Press reports from August 2026 say investors are targeting a valuation near $2 trillion — roughly double the $965 billion mark set by the May 2026 Series H. The actual number is set at pricing, after the roadshow, and can land meaningfully above or below reported targets.

Who are the underwriters for the Anthropic IPO?

Goldman Sachs, JPMorgan, and Morgan Stanley are the reported lead underwriters. The full syndicate will be listed in the public S-1. The offering is expected to raise more than $60 billion, which would rank among the largest IPOs ever.

What lockup will Anthropic employees face after the IPO?

Not yet public. Traditional IPOs use a uniform 180-day lockup, but recent large listings — SpaceX in June 2026, for example — have used staggered structures with multiple unlock windows. The S-1's lockup section is the single most important disclosure for employees; read it the day the filing goes public.

What should Anthropic employees do before the IPO prices?

Map which RSU grants settle at the listing, estimate the settlement tax at several possible prices, plan Q4 2026 and January 15, 2027 estimated payments, write a concentration policy before trading opens, and read the lockup terms in the public S-1. Settlement is taxed as ordinary income whether or not you sell.

The Anthropic IPO: what's confirmed, what's reported, what's unknown

The S-1 is filed. Investor meetings ran October 14. The roadshow is reported to begin the week of November 9, targeting a pre-Thanksgiving Nasdaq listing — and a valuation near $2 trillion. Here is the event, separated into the three categories that matter: confirmed facts, credible reporting, and what employees still won't know until the public S-1 drops.¹^,²

Anthropic employee? The IPO is your tax event before it's your liquidity event. See the employee equity guide, run the IPO tax planner, or get matched with a specialist before pricing.

Confirmed

Confidential S-1 submitted June 1, 2026. The draft registration statement begins SEC review. The document becomes public before the roadshow; that release is when pricing ranges, share counts, and lockup terms finally appear.¹
Series H closed May 2026: $65 billion at ~$965 billion. The last primary-market mark before the offering.¹
February 2026 employee tender: $5–6 billion at ~$350B. The last liquidity window employees had. Those who held have seen the paper mark rise ever since.¹

Reported — credible, not final

November 2026, Nasdaq. Investor meetings ran October 14; the formal roadshow is reported to begin the week of November 9; listing targeted pre-Thanksgiving. The public S-1 is expected imminently ahead of the roadshow launch.²
~$2 trillion valuation target. Reported in August 2026 as the investor goal for the offering — about 2× the Series H mark set three months earlier.²
Raise of $60+ billion via Goldman Sachs, JPMorgan, Morgan Stanley, and Citigroup as reported leads — a size that would place the deal among the largest IPOs on record.¹
Revenue trajectory: ~$47B annualized in May 2026, with reports projecting $100–120B annualized by year-end and a first operating profit.²

Educational only; not affiliated with, sponsored by, or endorsed by Anthropic. Reported figures can change; the S-1 supersedes all of them.

Unknown until the S-1 goes public

The lockup structure. Uniform 180 days, or staggered unlocks like SpaceX's June 2026 listing? For employees this is the most consequential open item — it sets the calendar for every selling decision.
Pricing and share count. The $2T figure is a target. The roadshow and order book set the real price.
How the LTBT and Class T governance operate post-listing. Anthropic's Long-Term Benefit Trust structure is designed to persist through an IPO; the S-1 will spell out the mechanics. Economically, employee common stock is not capped by the Trust — Class T shares carry governance rights, not economic value.³
Audited financials. Everything public today is press reporting. The S-1's financial statements are the first authoritative look.

The timeline from here

Public S-1 — expected imminently. The confidential draft typically flips public 2–3 weeks before the roadshow. With the roadshow starting November 9, the public filing is expected in the coming days. Read the lockup section the day it drops — it sets every post-IPO selling decision.
Roadshow — week of November 9. Two weeks of institutional meetings; the initial price range is published at launch, then tightened near pricing day.
Pricing and first trade — targeted pre-Thanksgiving. Double-trigger RSUs settle at the listing: ordinary income on the full settlement value in Q4 2026, whether or not a single share is sold. The Q4 estimated-tax deadline is January 15, 2027.⁴
Lockup period begins. No employee sales until the S-1 lockup schedule opens — 180 days uniform or a staggered structure like SpaceX used in June 2026. This is planning time: write the concentration target, design a 10b5-1 plan if you'll have MNPI access, and fund the January 15 payment.

The employee checklist for those steps — grant mapping, scenario math, California rates, 10b5-1 timing — lives on the Anthropic employee equity page. For the buy-side view (can you invest before the listing, what the valuation history looks like), see Anthropic stock. The general playbook for any IPO lockup is in the lockup guide.

Not an employee — trying to invest before the listing?

There is no public market until the listing. Accredited investors sometimes buy through private secondaries or funds holding positions, subject to transfer restrictions and thin information — and with the S-1 filed, discounts are scarce. We don't sell or arrange investments. For most people, participation starts when the stock trades on Nasdaq.

The roadshow starts November 9. Build the plan before pricing.

Get matched with a fee-only fiduciary who works IPO equity events — settlement tax modeling, estimated payments, lockup glidepath, 10b5-1 setup. Free, no obligation. If your window is short, say so.

Sources

Fortune — Anthropic confidentially files for IPO (June 1, 2026) — filing date, Series H, tender, underwriters, raise size. Cross-checked against CNBC.
StartupHub — Anthropic targets $2T IPO valuation in October 2026 (August 16, 2026) — valuation target, timeline, revenue reporting.
Anthropic — The Long-Term Benefit Trust — LTBT structure and Class T mechanics; see also Harvard Law Forum on Corporate Governance.
IRS Rev. Proc. 2025-32 — 2026 brackets and estimated-payment context; supplemental withholding per IRS Pub. 15-T.

Facts reflect public reporting as of October 19, 2026; the public S-1 supersedes all reported figures. Verify equity-program details against your grant documents and official company communications before acting.