GOSS 10-Q: SEC filing

Gossamer Bio

Filed with the SEC on Nov 10, 2026 · accession 0001728117-26-000114

GOSS filed a 10-Q (quarterly report) with the SEC on Nov 10, 2026. The quarterly report: unaudited results for the quarter plus management’s comments. The stock moved +6.0% by the first close after the filing.

Summary of the filing

Gossamer Bio filed its Q3 2026 Form 10-Q, reporting quarterly financial results including revenue from its collaboration with Chiesi and ongoing expenses related to its drug development programs.

For details, click here →How to read a 10-Q →

Key details

FilerGossamer Bio, Inc.

Collaboration partner and revenue sourceChiesi Farmaceutici S.p.A. and Chiesi USA, Inc.

How GOSS stock reacted

Close before

$10.64

Nov 9, 2026

First close after

+5.97%

$11.28

5 trading days

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Since filing

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Frequently asked questions

What did GOSS file with the SEC on Nov 10, 2026?

GOSS filed a 10-Q (SEC filing). Gossamer Bio filed its Q3 2026 Form 10-Q, reporting quarterly financial results including revenue from its collaboration with Chiesi and ongoing expenses related to its drug development programs.

How do I read a 10-Q?

The quarterly report: unaudited results for the quarter plus management’s comments. Compare revenue, margins and cash flow with the same quarter last year. Check MD&A for guidance changes and what drove the quarter.

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 10-Q (quarterly report): The quarterly report: unaudited results for the quarter plus management’s comments.

How did GOSS stock react to this filing?

GOSS closed at $10.64 before the filing and $11.28 on Nov 10, 2026 (+5.97%).

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