SEPN 8-K: SEC filing

Filed with the SEC on Nov 9, 2026 · accession 0001193125-26-453547

SEPN filed a 8-K (current report) with the SEC on Nov 9, 2026. A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The stock moved +3.9% by the first close after the filing.

Summary of the filing

Septerna, Inc. furnished an 8-K announcing its financial results and business highlights for the quarter ended September 30, 2026, via a press release attached as Exhibit 99.1.

For details, click here →How to read a 8-K →

Key details

RegistrantSepterna, Inc.

Chief executive officerJeffrey Finer, M.D., Ph.D.

How SEPN stock reacted

Close before

$48.85

Nov 6, 2026

First close after

+3.87%

$50.74

5 trading days

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Since filing

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Frequently asked questions

What did SEPN file with the SEC on Nov 9, 2026?

SEPN filed a 8-K (SEC filing). Septerna, Inc. furnished an 8-K announcing its financial results and business highlights for the quarter ended September 30, 2026, via a press release attached as Exhibit 99.1.

How do I read a 8-K?

A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.

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 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.

How did SEPN stock react to this filing?

SEPN closed at $48.85 before the filing and $50.74 on Nov 9, 2026 (+3.87%).

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