Karyopharm Therapeutics Inc. bankruptcy filing

Karyopharm Therapeutics Inc. (CIK 1503802, KPTI) reported a bankruptcy or receivership to the SEC on Form 8-K under Item 1.03, the latest filed 2026-11-03. It gives its business address as Newton, Massachusetts. Its registered industry is Pharmaceutical Preparations. The sentences below are quoted from the filings as written.

The filings

Form 8-K filed 2026-11-03 · Chapter 11

The petition

On November 2, 2026 (the "Petition Date"), Karyopharm Therapeutics Inc. (the "Company") and its subsidiary, KPT Texas LLC (the "Subsidiary" and, together with the Company, the "Debtors") filed voluntary petitions (the "Bankruptcy Petitions") under Chapter 11 of title 11 of the United States Code (the "Bankruptcy Code") in the United States Bankruptcy Court for the Southern District of Texas, Houston Division (such court, the "Court" and such cases, the "Cases").

Case

The Debtors have requested that the Cases be jointly administered under the caption In re Karyopharm Therapeutics Inc., et al.

Open the filing

Where this comes from

Public companies report a bankruptcy, a receivership or a similar proceeding to the SEC on Form 8-K under Item 1.03, usually within four business days. Every filing listed here is one of them, linked to the filing itself. The sentences shown are quoted from the filing exactly; where a filing does not state the court, the case or the chapter in one sentence, nothing is shown in its place.

The state is where the company says its business is, and the industry is the one it registered with the SEC. A filing reports what the company filed; it does not say whether creditors will be paid, and neither does this page.

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