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Stocks/MBI/SEC Filings/SCHEDULE 13G/A Aug 13, 2026

MBI SCHEDULE 13G/A: SEC filing

An institutional holder

Filed with the SEC on Aug 13, 2026 · accession 0000899140-26-000823

MBI filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Aug 13, 2026. An institutional holder filed an amended Schedule 13G for MBIA Inc., indicating a change in its passive ownership position. The stock moved +3.2% by the first close after the filing.

Summary of the filing

An institutional holder filed an amended Schedule 13G for MBIA Inc., indicating a change in its passive ownership position. The filing text provided contains only the EDGAR directory listing and no substantive ownership details.

For details, click here →

Key details

IssuerMBIA Inc.

How MBI stock reacted

Close before

$4.98

Aug 12, 2026

First close after

+3.21%

$5.14

5 trading days

-3.21%

$4.82

Since filing

-7.23%

$4.62

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Frequently asked questions

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

MBI filed a SCHEDULE 13G/A (SEC filing). An institutional holder filed an amended Schedule 13G for MBIA Inc., indicating a change in its passive ownership position. The filing text provided contains only the EDGAR directory listing and no substantive ownership details.

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 MBI stock react to this filing?

MBI closed at $4.98 before the filing and $5.14 on Aug 13, 2026 (+3.21%). Five trading days later: $4.82 (-3.21%).

Other MBI SEC filings

  • 8-K · SEC filingNov 4, 2026
  • 10-Q · SEC filingNov 4, 2026
  • SCHEDULE 13G · SEC filingAug 14, 2026
  • 10-Q · SEC filingAug 6, 2026
  • 8-K · SEC filingAug 6, 2026
  • 8-K · SEC filingMay 7, 2026
  • 10-Q · SEC filingMay 7, 2026

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Source: SEC EDGAR filing 0000899140-26-000823. The summary and key details are extracted by SEPT from the filing and may contain errors. Price reaction uses daily closing prices. Not financial advice.