ONCO SCHEDULE 13G/A: SEC filing

An institutional holder

Filed with the SEC on Nov 5, 2026 · accession 0001213900-26-116262

ONCO filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Nov 5, 2026. A report the company filed with the SEC (the US market regulator). The stock moved -16.6% by the first close after the filing.

Summary of the filing

An institutional holder filed an amended Schedule 13G disclosing its passive ownership position in Onconetix, Inc. The filing indicates no change in intent to influence control of the company.

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Key details

IssuerOnconetix, Inc.

How ONCO stock reacted

Close before

$0.66

Nov 4, 2026

First close after

-16.60%

$0.55

5 trading days

—

Since filing

+964.86%

$7.01

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Frequently asked questions

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

ONCO filed a SCHEDULE 13G/A (SEC filing). An institutional holder filed an amended Schedule 13G disclosing its passive ownership position in Onconetix, Inc. The filing indicates no change in intent to influence control of the company.

How do I read a SCHEDULE 13G/A?

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

How did ONCO stock react to this filing?

ONCO closed at $0.66 before the filing and $0.55 on Nov 5, 2026 (-16.60%).

Other ONCO SEC filings

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