ZBIO 8-K: SEC filing
Zenas BioPharma
Filed with the SEC on · accession 0001104659-26-123035
ZBIO filed a 8-K (current report) with the SEC on Nov 5, 2026. A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The stock moved -8.9% by the first close after the filing.
Summary of the filing
Zenas BioPharma filed a routine Form 8-K cover page with no substantive corporate event disclosed.
Key details
How ZBIO stock reacted
Close before
$28.46
Nov 4, 2026
First close after
-8.89%
$25.93
5 trading days
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Since filing
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Click hereFrequently asked questions
What did ZBIO file with the SEC on Nov 5, 2026?
ZBIO filed a 8-K (SEC filing). Zenas BioPharma filed a routine Form 8-K cover page with no substantive corporate event disclosed.
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 ZBIO stock react to this filing?
ZBIO closed at $28.46 before the filing and $25.93 on Nov 5, 2026 (-8.89%).
Other ZBIO SEC filings
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