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CUBWU SCHEDULE 13G/A: SEC filing

Magnetar Financial LLC and affiliated entities

Filed with the SEC on · accession 0001104659-26-105281

CUBWU filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Sep 4, 2026. A report the company filed with the SEC (the US market regulator). The stock moved +0.0% by the first close after the filing.

Summary of the filing

Magnetar Financial LLC and affiliated entities filed a joint filing agreement under Schedule 13G/A regarding their passive ownership of shares in Lionheart Holdings as of June 30, 2026.

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Key details

FilerMagnetar Financial LLC
FilerMagnetar Capital Partners LP
FilerSupernova Management LLC
Subject companyLionheart Holdings
Administrative manager of supernova management llcDavid J. Snyderman
Attorney-in-factHayley Stein

How CUBWU stock reacted

Close before

$11.02

Sep 1, 2026

First close after

+0.00%

$11.02

5 trading days

+0.00%

$11.02

Since filing

+0.00%

$11.02

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Frequently asked questions

What did CUBWU file with the SEC on Sep 4, 2026?

CUBWU filed a SCHEDULE 13G/A (SEC filing). Magnetar Financial LLC and affiliated entities filed a joint filing agreement under Schedule 13G/A regarding their passive ownership of shares in Lionheart Holdings as of June 30, 2026.

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).

How did CUBWU stock react to this filing?

CUBWU closed at $11.02 before the filing and $11.02 on Oct 6, 2026 (+0.00%). Five trading days later: $11.02 (+0.00%).

Other CUBWU SEC filings

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