NAUT SCHEDULE 13D/A: SEC filing

An amendment to a Schedule 13D was

Filed with the SEC on Aug 14, 2026 · accession 0001193125-26-352644

NAUT filed a SCHEDULE 13D/A (schedule 13d/a) with the SEC on Aug 14, 2026. A report the company filed with the SEC (the US market regulator). The stock moved +0.2% by the first close after the filing.

Summary of the filing

An amendment to a Schedule 13D was filed regarding Nautilus Biotechnology, Inc. The filing text available does not disclose the specific changes made by the reporting person.

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Key details

Subject companyNautilus Biotechnology, Inc.

How NAUT stock reacted

Close before

$0.89

Aug 13, 2026

First close after

+0.22%

$0.89

5 trading days

+1.38%

$0.90

Since filing

+150.56%

$2.23

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Frequently asked questions

What did NAUT file with the SEC on Aug 14, 2026?

NAUT filed a SCHEDULE 13D/A (SEC filing). An amendment to a Schedule 13D was filed regarding Nautilus Biotechnology, Inc. The filing text available does not disclose the specific changes made by the reporting person.

How do I read a SCHEDULE 13D/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 13D/A (schedule 13d/a): A report the company filed with the SEC (the US market regulator).

How did NAUT stock react to this filing?

NAUT closed at $0.89 before the filing and $0.89 on Aug 14, 2026 (+0.22%). Five trading days later: $0.90 (+1.38%).

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