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GIG SCHEDULE 13G/A: SEC filing

Mizuho Financial Group and its subsidiaries

Filed with the SEC on · accession 0001104659-26-095385

GIG filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Aug 13, 2026. A report the company filed with the SEC (the US market regulator).

Summary of the filing

Mizuho Financial Group and its subsidiaries filed a Schedule 13G/A amendment regarding their holdings in Hadron Energy, Inc. The filing consists primarily of powers of attorney authorizing Takahiro Katsura to execute and file Form 13G on behalf of Mizuho entities.

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Key details

Filer / beneficial ownerMizuho Financial Group, Inc.
Subsidiary of filerMizuho Bank, Ltd.
Subsidiary of filerMizuho Americas LLC
Subsidiary of filerMizuho Securities USA LLC
Issuer of securities heldHadron Energy, Inc.
Managing director, head of global branches & subsidiaries coordination office, mizuho financial groupTakahiro Katsura
Senior managing corporate executive, head of global corporate & investment banking, mizuho financial groupShuji Matsuura
Chief legal officer, mizuho americas llc; managing director, general counsel, mizuho securities usa llcAdam Hopkins

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Frequently asked questions

What did GIG file with the SEC on Aug 13, 2026?

GIG filed a SCHEDULE 13G/A (SEC filing). Mizuho Financial Group and its subsidiaries filed a Schedule 13G/A amendment regarding their holdings in Hadron Energy, Inc. The filing consists primarily of powers of attorney authorizing Takahiro Katsura to execute and file Form 13G on behalf of Mizuho entities.

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).

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