KPTI NT 10-Q: Late filing

Karyopharm Therapeutics

Filed with the SEC on · accession 0001193125-26-460615

KPTI filed a NT 10-Q (nt 10-q) with the SEC on Nov 13, 2026. Karyopharm Therapeutics filed a Form 12b-25 notifying the SEC that it cannot timely file its Form 10-Q for the quarter ended September 30, 2026, due to its Chapter 11 bankruptcy filing and related restructuring activities.

Summary of the filing

Karyopharm Therapeutics filed a Form 12b-25 notifying the SEC that it cannot timely file its Form 10-Q for the quarter ended September 30, 2026, due to its Chapter 11 bankruptcy filing and related restructuring activities. The company also disclosed that Nasdaq suspended trading of its common stock and that existing equity will be cancelled without distribution under the Prepackaged Plan.

Key details

Registrant/debtorKaryopharm Therapeutics Inc.
Subsidiary/debtorKPT Texas LLC
Stalking horse bidder/merger partnerAyrmid Ltd.
Exchange/delistingNasdaq Stock Market

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Frequently asked questions

What did KPTI file with the SEC on Nov 13, 2026?

KPTI filed a NT 10-Q (Late filing). Karyopharm Therapeutics filed a Form 12b-25 notifying the SEC that it cannot timely file its Form 10-Q for the quarter ended September 30, 2026, due to its Chapter 11 bankruptcy filing and related restructuring activities. The company also disclosed that Nasdaq suspended trading of its common stock and that existing equity will be cancelled without distribution under the Prepackaged Plan.

What does a late filing mean for KPTI stock?

The stock often falls sharply. In a Chapter 11 reorganization existing shares are frequently cancelled or heavily diluted; in Chapter 7 the company is liquidated and shareholders are paid last, usually nothing.

How do I read a NT 10-Q?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A NT 10-Q (nt 10-q): A report the company filed with the SEC (the US market regulator).

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