As of November 10, 2026, one holder's latest Schedule 13D or 13G filing report owning 5% or more of Sirius Xm Holdings Inc. The largest reported stake is Warren E. Buffett's, at 37.1%. 4 filings are on record since November 14, 2025 (Schedule 13G/A, November 14, 2025).
Who owns Sirius Xm Holdings Inc.?
Sell to companies like Sirius Xm Holdings Inc? Enter your website and see 10 with a filed reason to buy from you this month. Free.
Opens in a new tab. No signup.
Key facts
- · Reporting person: John C. Malone · Sole voting: 16,023,965 · Shared voting: 103,056 · Sole dispositive: 16,023,965 · Shared dispositive: 103,056 · SCHEDULE 13D/A, 2026-11-09
- · Reporting person: The Vanguard Group · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-09-03
- · Holder: John C. Malone · Percent: 5.5% · SCHEDULE 13D/A
- · Holder: Warren E. Buffett · Percent: 37.1% · SCHEDULE 13G/A
Sirius Xm Holdings Inc. has 4 Schedule 13D or 13G filings on record since 2025-11-14. 1 holder's latest filing reports 5% or more of common stock, par value $0.001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 37.1% | 124,807,117 | SCHEDULE 13G/A, 2025-11-14 | 2025-09-30 | |
| 4.8% | 16,127,021 | SCHEDULE 13D/A, 2026-11-09 | 2026-11-06 | |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-09-03 | 2026-03-13 |
Holding shares or following this stake? See who's behind Sirius Xm Holdings Inc. and the warning signs.
Free to see. No signup.
Keep reading
More on Sirius Xm Holdings Inc. and the records around it.
Sirius Xm Holdings Inc. elsewhere on the record
Companies that share a holder
- John C. Malone also filed stake reports on 6 other companies: Liberty Media Corp (Nov 2026), Liberty Broadband Corp (Aug 2026), Liberty Latin America Ltd. (Aug 2026)
- Warren E. Buffett also filed stake reports on 13 other companies: LENNAR CORPORATION (Oct 2026), DOMINO'S PIZZA, INC. (May 2026), LIBERTY LATIN AMERICA LTD (May 2026)
- The Vanguard Group also filed stake reports on 2384 other companies: BellRing Brands, Inc. (Sep 2026), CAL-MAINE FOODS INC (Sep 2026), FTAI Aviation Ltd. (Sep 2026)
Watch Sirius Xm Holdings Inc.
Get an email when Sirius Xm Holdings Inc. files again: a new raise, a leadership change, a layoff or an IPO filing. One email first to confirm; nothing else until you click it. At most one a day, one click to stop. Free for up to 3 companies.
Want the whole picture on Sirius Xm Holdings Inc.?
Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
A Full Report on Sirius Xm Holdings Inc.: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Sirius Xm Holdings Inc. covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
6 cited sources found
Plus the sections for what you are deciding, which you pick after ordering.
A real finished report, first screen. Opens in a new tab.
Not ready to order yet? Keep this snapshot.
Sends this preview to you once; we won't add you to any list
Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| John C. Malone | 16,023,965 | 103,056 | 16,023,965 | 103,056 | SCHEDULE 13D/A, 2026-11-09 |
| The Vanguard Group | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-09-03 |
The latest filing identifies Sirius Xm Holdings Inc. by CUSIP 829933100 and gives its principal executive office as 1290 AVENUE OF THE AMERICAS, 11TH FLOOR, New York, NY 10104 (SCHEDULE 13D/A, 2026-11-09).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-11-14 | Warren E. Buffett | 37.1% | SCHEDULE 13G/A |
| 2026-06-10 | John C. Malone | 5.5% | SCHEDULE 13D/A |
| 2026-09-03 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-11-09 | John C. Malone | 4.8% | SCHEDULE 13D/A |
Questions about who owns Sirius Xm Holdings Inc.
Who owns Sirius Xm Holdings Inc.?
On this page, one holder's latest ownership filing reports 5% or more of Sirius Xm Holdings Inc.: Warren E. Buffett (37.1%, Schedule 13G/A, filed 2025-11-14).
When did Warren E. Buffett buy into Sirius Xm Holdings Inc.?
The filings give report dates, not purchase dates. The earliest filing from Warren E. Buffett on this page is the Schedule 13G/A, filed 2025-11-14, reporting 37.1%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 4 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Sirius Xm Holdings Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| November 9, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| July 30, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
Tools for this story
Each opens in a new tab, filled in for Sirius Xm Holdings Inc.. With no account yet, you sign up free and land on the result.
Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.