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CGO SCHEDULE 13G: SEC filing

BlackRock Portfolio Management LLC

Filed with the SEC on · accession 0001493152-26-041787

CGO filed a SCHEDULE 13G (schedule 13g) with the SEC on Sep 8, 2026. A report the company filed with the SEC (the US market regulator). The stock moved -0.4% by the first close after the filing.

Summary of the filing

BlackRock Portfolio Management LLC filed a Schedule 13G power of attorney exhibit appointing several individuals as attorneys-in-fact for ownership reporting compliance, revoking a prior power of attorney dated January 28, 2025.

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Key details

FilerBlackRock Portfolio Management LLC
Sole member of filerBlackRock Finance, Inc.
Subject companyCalamos Global Total Return Fund
Corporate secretary, blackrock finance, inc.R. Andrew Dickson, III
Attorney-in-factEric Andruczyk
Attorney-in-factJulie Ashworth
Attorney-in-factRichard Cundiff
Attorney-in-factSpencer Fleming
Attorney-in-factLaura Hildner
Attorney-in-factDavid Maryles
Attorney-in-factChristopher Meade
Attorney-in-factCharles Park
Attorney-in-factJames Raby
Attorney-in-factDaniel Riemer
Attorney-in-factDavid Rothenberg
Attorney-in-factBrenda Schulz
Attorney-in-factJoseph Virgilio

How CGO stock reacted

Close before

$13.23

Sep 4, 2026

First close after

-0.38%

$13.18

5 trading days

-3.40%

$12.78

Since filing

-10.96%

$11.78

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Frequently asked questions

What did CGO file with the SEC on Sep 8, 2026?

CGO filed a SCHEDULE 13G (SEC filing). BlackRock Portfolio Management LLC filed a Schedule 13G power of attorney exhibit appointing several individuals as attorneys-in-fact for ownership reporting compliance, revoking a prior power of attorney dated January 28, 2025.

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 CGO stock react to this filing?

CGO closed at $13.23 before the filing and $13.18 on Sep 8, 2026 (-0.38%). Five trading days later: $12.78 (-3.40%).

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