AUTL EFFECT: SEC filing

Autolus Therapeutics plc

Filed with the SEC on Sep 22, 2026 · accession 9999999995-26-003037

AUTL filed a EFFECT (effect) with the SEC on Sep 22, 2026. A report the company filed with the SEC (the US market regulator). The stock moved +4.6% by the first close after the filing.

Summary of the filing

Autolus Therapeutics plc filed an EFFECT form with the SEC, indicating that a previously filed registration statement has become effective.

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Key details

FilerAutolus Therapeutics plc

How AUTL stock reacted

Close before

$1.94

Sep 21, 2026

First close after

+4.64%

$2.03

5 trading days

-4.12%

$1.86

Since filing

-34.02%

$1.28

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Frequently asked questions

What did AUTL file with the SEC on Sep 22, 2026?

AUTL filed a EFFECT (SEC filing). Autolus Therapeutics plc filed an EFFECT form with the SEC, indicating that a previously filed registration statement has become effective.

How do I read a EFFECT?

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 EFFECT (effect): A report the company filed with the SEC (the US market regulator).

How did AUTL stock react to this filing?

AUTL closed at $1.94 before the filing and $2.03 on Sep 22, 2026 (+4.64%). Five trading days later: $1.86 (-4.12%).

Other AUTL SEC filings

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