Sirius XM Holdings, Inc (SIRI) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for SIRI. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 586 institutions reported holding SIRI, with 280.2 million shares worth $8.3 billion in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| Berkshire Hathaway | 124,807,117 | $3.7B | UNCHANGED |
| Vanguard | 18,974,696 | $561M | INCREASED |
| BlackRock | 17,602,229 | $520M | INCREASED |
| Dimensional Fund Advisors | 10,512,352 | $311M | INCREASED |
| Kontiki Capital Management (HK) Ltd | 6,082,824 | $180M | INCREASED |
Full institutional holdings, insider history, and congressional trades for Sirius XM Holdings, Inc on SentiSense.