SIRI Sirius XM Holdings Inc.
Sirius XM Holdings Inc. (SIRI) Institutional Ownership
What the institutions did with SIRI last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| Berkshire Hathaway Inc | 124.8M | 42.3% |
| BlackRock, Inc. | 17.6M | 6.0% |
| DIMENSIONAL FUND ADVISORS LP | 10.5M | 3.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 9.1M | 3.1% |
| CHECK CAPITAL MANAGEMENT INC/CA | 8.8M | 3.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 8.4M | 2.8% |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 6.3M | 2.1% |
| Kontiki Capital Management (HK) Ltd. | 6.1M | 2.1% |
| STATE STREET CORP | 6.0M | 2.0% |
| Boston Partners | 5.1M | 1.7% |
| Gates Capital Management, Inc. | 4.5M | 1.5% |
| GEODE CAPITAL MANAGEMENT, LLC | 3.9M | 1.3% |
| LSV ASSET MANAGEMENT | 3.6M | 1.2% |
| AQR CAPITAL MANAGEMENT LLC | 3.4M | 1.2% |
| CITADEL ADVISORS LLC | 3.3M | 1.1% |
| Bank of New York Mellon Corp | 3.0M | 1.0% |
| GOLDMAN SACHS GROUP INC | 3.0M | 1.0% |
| J. Goldman & Co LP | 2.9M | 1.0% |
| CANADA PENSION PLAN INVESTMENT BOARD | 2.4M | 0.8% |
| NORGES BANK | 2.1M | 0.7% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.8M | 0.6% |
| Squarepoint Ops LLC | 1.6M | 0.6% |
| Pacer Advisors, Inc. | 1.6M | 0.6% |
| MORGAN STANLEY | 1.6M | 0.6% |
| NORTHERN TRUST CORP | 1.6M | 0.5% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 9.6M | 17.6M | +8.0M |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | Increased | 216.9K | 6.3M | +6.1M |
| CHECK CAPITAL MANAGEMENT INC/CA | Increased | 2.9M | 8.8M | +5.8M |
| Boston Partners | New | 0 | 5.1M | +5.1M |
| DIMENSIONAL FUND ADVISORS LP | Increased | 6.3M | 10.5M | +4.2M |
| J. Goldman & Co LP | New | 0 | 2.9M | +2.9M |
| STATE STREET CORP | Increased | 3.5M | 6.0M | +2.4M |
| SEIZERT CAPITAL PARTNERS, LLC | Reduced | 1.8M | 10.1K | -1.8M |
| Gates Capital Management, Inc. | Increased | 2.7M | 4.5M | +1.8M |
| AMERIPRISE FINANCIAL INC | Reduced | 2.4M | 728.5K | -1.7M |
| Pacer Advisors, Inc. | New | 0 | 1.6M | +1.6M |
| Squarepoint Ops LLC | Increased | 45.0K | 1.6M | +1.6M |
| CANADA PENSION PLAN INVESTMENT BOARD | Reduced | 3.9M | 2.4M | -1.5M |
| THOMPSON SIEGEL & WALMSLEY LLC | Reduced | 2.6M | 1.1M | -1.5M |
| HSBC HOLDINGS PLC | Reduced | 1.8M | 541.1K | -1.3M |
| DEPRINCE RACE & ZOLLO INC | New | 0 | 1.1M | +1.1M |
| TWO SIGMA INVESTMENTS, LP | Reduced | 1.8M | 792.0K | -985.3K |
| GOLDMAN SACHS GROUP INC | Reduced | 3.9M | 3.0M | -906.0K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Sold Out | 901.0K | 0 | -901.0K |
| Bank of New York Mellon Corp | Increased | 2.2M | 3.0M | +834.5K |
| DEUTSCHE BANK AG\ | Increased | 42.4K | 660.8K | +618.5K |
| Penserra Capital Management LLC | Increased | 815.1K | 1.4M | +617.8K |
| JANE STREET GROUP, LLC | Reduced | 609.5K | 10.5K | -599.0K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 161.3K | 730.3K | +569.0K |
| ROYAL BANK OF CANADA | Increased | 99.2K | 652.4K | +553.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.