← Back to 13F holdingsStock detail · v1
SIRIUS XM HOLDINGS INC
$SIRILast close: $26.61(2026-04-24)BRK current position: 124,807,117 shares ($2.5B as of 2025-12-31)Quarters with activity: 4CUSIP: 829933100
Price history with Berkshire transactions
InitiatedAddedTrimmedExited
SIRIS&P 500 (right axis, $)Shares held (right axis)
Hover for daily price. Triangle markers show quarter-end Berkshire buy (▲ green) / sell (▼ orange/red) events from 13F-HR filings. Quarter-level granularity only — actual trade dates are not disclosed.
Berkshire's quarterly position history
| Quarter | Shares | Δ Shares | Action | Value (USD) | 13F |
|---|---|---|---|---|---|
| 2025-12-31 | 124,807,117 | — | held | $2,495.5M | View |
| 2025-09-30 | 124,807,117 | +5,030,425 | added | $2,904.9M | View |
| 2025-06-30 | 119,776,692 | — | held | $2,751.3M | View |
| 2025-03-31 | 119,776,692 | +2,308,119 | added | $2,700.4M | View |
| 2024-12-31 | 117,468,573 | +12,313,544 | added | $2,678.3M | View |
| 2024-09-30 | 105,155,029 | +105,155,029 | initiated | $2,486.9M | View |
Prices via Yahoo Finance. Berkshire position data from quarterly 13F-HR filings. 13F has a ~45-day filing lag and only covers long US-listed equity positions. Cost basis below is approximated from the quarter-end value at which shares were added (FIFO).