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ETON 8-K: SEC filing

Eton Pharmaceuticals

Filed with the SEC on · accession 0001437749-26-035258

ETON filed a 8-K (current report) with the SEC on Nov 5, 2026. Eton Pharmaceuticals announced preliminary results from a pilot study of ET-700, its investigational extended-release zinc acetate for Wilson disease, showing improved gastrointestinal tolerability versus GALZIN but weaker copper absorption inhibition. The stock moved -7.0% by the first close after the filing.

Summary of the filing

Eton Pharmaceuticals announced preliminary results from a pilot study of ET-700, its investigational extended-release zinc acetate for Wilson disease, showing improved gastrointestinal tolerability versus GALZIN but weaker copper absorption inhibition. The company plans to advance faster-release formulations into additional study arms in 2027.

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

Key details

Registrant/issuerEton Pharmaceuticals, Inc.
Chief financial officer and secretaryJudith M. Matthews

How ETON stock reacted

Close before

$50.72

Nov 4, 2026

First close after

-7.04%

$47.15

5 trading days

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Since filing

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Frequently asked questions

What did ETON file with the SEC on Nov 5, 2026?

ETON filed a 8-K (SEC filing). Eton Pharmaceuticals announced preliminary results from a pilot study of ET-700, its investigational extended-release zinc acetate for Wilson disease, showing improved gastrointestinal tolerability versus GALZIN but weaker copper absorption inhibition. The company plans to advance faster-release formulations into additional study arms in 2027.

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 ETON stock react to this filing?

ETON closed at $50.72 before the filing and $47.15 on Nov 5, 2026 (-7.04%).

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