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HTOO EFFECT: SEC filing

Fusion Fuel Green PLC

Filed with the SEC on · accession 9999999995-26-003036

HTOO 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 -2.0% by the first close after the filing.

Summary of the filing

Fusion Fuel Green PLC filed an EFFECT notice with the SEC, indicating that a previously filed registration statement has become effective.

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Key details

FilerFusion Fuel Green PLC

How HTOO stock reacted

Close before

$2.03

Sep 21, 2026

First close after

-1.97%

$1.99

5 trading days

+1.48%

$2.06

Since filing

-33.99%

$1.34

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Frequently asked questions

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

HTOO filed a EFFECT (SEC filing). Fusion Fuel Green PLC filed an EFFECT notice 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 HTOO stock react to this filing?

HTOO closed at $2.03 before the filing and $1.99 on Sep 22, 2026 (-1.97%). Five trading days later: $2.06 (+1.48%).

Other HTOO SEC filings

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