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SIRI SCHEDULE 13D/A: SEC filing

John C. Malone

Filed with the SEC on · accession 0001104659-26-124638

SIRI filed a SCHEDULE 13D/A (schedule 13d/a) with the SEC on Nov 9, 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

John C. Malone filed an amendment to his Schedule 13D disclosing that his beneficial ownership of Sirius XM Holdings Inc. common stock has fallen to approximately 4.8%, meaning he has ceased to be a beneficial owner of more than five percent of the outstanding shares.

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Key details

Total shares beneficially owned by John C. Malone$16.1M
Shares outstanding as of October 27, 2026$336.5M
IssuerSirius XM Holdings Inc.
Shareholder (1,045,714 shares)LM Revocable Trust
Shareholder (13,097,251 shares)JM Revocable Trust
Shareholder (1,881,000 shares)LLC (Malone member)
Shareholder (103,056 shares)Trust (managed by independent trustee)
Reporting person / beneficial ownerJohn C. Malone

How SIRI stock reacted

Close before

$32.40

Nov 6, 2026

First close after

+0.83%

$32.67

5 trading days

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Since filing

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Frequently asked questions

What did SIRI file with the SEC on Nov 9, 2026?

SIRI filed a SCHEDULE 13D/A (SEC filing). John C. Malone filed an amendment to his Schedule 13D disclosing that his beneficial ownership of Sirius XM Holdings Inc. common stock has fallen to approximately 4.8%, meaning he has ceased to be a beneficial owner of more than five percent of the outstanding shares.

How do I read a SCHEDULE 13D/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 13D/A (schedule 13d/a): A report the company filed with the SEC (the US market regulator).

How did SIRI stock react to this filing?

SIRI closed at $32.40 before the filing and $32.67 on Nov 9, 2026 (+0.83%).

Other SIRI SEC filings

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