SIMA SCHEDULE 13G/A: SEC filing
Magnetar Financial LLC and affiliated entities
Filed with the SEC on · accession 0001104659-26-105289
SIMA 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 -0.8% by the first close after the filing.
Summary of the filing
Magnetar Financial LLC and affiliated entities filed a joint filing agreement as part of an amended Schedule 13G regarding their passive ownership of shares of SIM Acquisition Corp. I as of June 30, 2026.
Key details
How SIMA stock reacted
Close before
$10.99
Sep 2, 2026
First close after
-0.77%
$10.91
5 trading days
-1.32%
$10.85
Since filing
-0.22%
$10.97
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Click hereFrequently asked questions
What did SIMA file with the SEC on Sep 4, 2026?
SIMA filed a SCHEDULE 13G/A (SEC filing). Magnetar Financial LLC and affiliated entities filed a joint filing agreement as part of an amended Schedule 13G regarding their passive ownership of shares of SIM Acquisition Corp. I 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 SIMA stock react to this filing?
SIMA closed at $10.99 before the filing and $10.91 on Sep 8, 2026 (-0.77%). Five trading days later: $10.85 (-1.32%).
Other SIMA SEC filings
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