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Will Anthropic file an IPO registration naming Morgan Stanley by 12 December 2026?

probability 83% deadline 2026-12-12 (35d left) Market

Posted 2026-10-13 — 60 days before the deadline, stated before the outcome.

Anthropic is an artificial intelligence company, and Morgan Stanley is a global investment bank. A registration statement is a formal document filed with the U.S. Securities and Exchange Commission to initiate a public offering of securities.

The claim

By 2026-12-12, Anthropic will have filed with the SEC a registration statement for its initial public offering that names Morgan Stanley as a lead underwriter.

Reasoning trace

  1. Anthropic is reportedly preparing for an IPO, with Morgan Stanley expected to play a leading role.
  2. Morgan Stanley's existing partnership with Anthropic strengthens its position as a lead underwriter.
  3. If Anthropic files a registration statement by 2026-12-12, the filing will list its underwriters.
  4. The filing would be a public, verifiable event confirming Morgan Stanley's role.

Evidence so far

41 confirming · 1 denying signals · 6 verified · 3 broken assumptions. The evidence itself is part of the full dossier.

Probability history

Updated 23 times since mint (last on 2026-11-06) — 16% at mint → 83% today.

The full dossier behind this prediction — the evidence trail, the risk analysis, the monetization scenarios — is available on request: [email protected].

Probabilities are calibrated against the system's own resolved history; after the deadline the outcome is resolved and audited — including the calls we get wrong. Nothing on this page is investment advice.