ZBIO SCHEDULE 13G: SEC filing

A Schedule 13G was

Filed with the SEC on Oct 27, 2026 · accession 0002012383-26-003867

ZBIO filed a SCHEDULE 13G (schedule 13g) with the SEC on Oct 27, 2026. A Schedule 13G was filed regarding Zenas BioPharma, Inc. (ZBIO), indicating a passive ownership position by an institutional or other holder. The stock moved +0.2% by the first close after the filing.

Summary of the filing

A Schedule 13G was filed regarding Zenas BioPharma, Inc. (ZBIO), indicating a passive ownership position by an institutional or other holder. The filing text provided is only the EDGAR directory listing and does not include the substantive ownership details.

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Key details

IssuerZenas BioPharma, Inc.

How ZBIO stock reacted

Close before

$27.24

Oct 26, 2026

First close after

+0.22%

$27.30

5 trading days

+1.40%

$27.62

Since filing

+3.74%

$28.26

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Frequently asked questions

What did ZBIO file with the SEC on Oct 27, 2026?

ZBIO filed a SCHEDULE 13G (SEC filing). A Schedule 13G was filed regarding Zenas BioPharma, Inc. (ZBIO), indicating a passive ownership position by an institutional or other holder. The filing text provided is only the EDGAR directory listing and does not include the substantive ownership details.

How do I read a SCHEDULE 13G?

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 SCHEDULE 13G (schedule 13g): A report the company filed with the SEC (the US market regulator).

How did ZBIO stock react to this filing?

ZBIO closed at $27.24 before the filing and $27.30 on Oct 27, 2026 (+0.22%). Five trading days later: $27.62 (+1.40%).

Other ZBIO SEC filings

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