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ALPX SCHEDULE 13G: SEC filing

Mizuho Financial Group and its subsidiaries

Filed with the SEC on · accession 0001104659-26-095455

ALPX filed a SCHEDULE 13G (schedule 13g) with the SEC on Aug 13, 2026. A report the company filed with the SEC (the US market regulator). The stock moved +0.1% by the first close after the filing.

Summary of the filing

Mizuho Financial Group and its subsidiaries filed a Schedule 13G exhibit consisting of powers of attorney authorizing Takahiro Katsura to execute and file Form 13G filings on their behalf regarding their holdings in Alpex Acquisition Corp. The filing discloses no change in ownership position.

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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 heldAlpex Acquisition Corp
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; general counsel, mizuho securities usa llcAdam Hopkins

How ALPX stock reacted

Close before

$9.89

Aug 12, 2026

First close after

+0.10%

$9.90

5 trading days

+0.40%

$9.93

Since filing

+1.21%

$10.01

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Frequently asked questions

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

ALPX filed a SCHEDULE 13G (SEC filing). Mizuho Financial Group and its subsidiaries filed a Schedule 13G exhibit consisting of powers of attorney authorizing Takahiro Katsura to execute and file Form 13G filings on their behalf regarding their holdings in Alpex Acquisition Corp. The filing discloses no change in ownership position.

How do I read a SCHEDULE 13G?

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

How did ALPX stock react to this filing?

ALPX closed at $9.89 before the filing and $9.90 on Aug 13, 2026 (+0.10%). Five trading days later: $9.93 (+0.40%).

Other ALPX SEC filings

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