- Quarter end
- 30 Jun 2025
- the date the book describes
- Filed
- 14 Aug 2025
- latest of these filings; the earliest 13 Aug 2025
- Managers listing it
- 5
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q1 2025 and Q2 2025; 4 listed it in both
- Shares listed
- 133,805,875
- combined, among listed positions
- Reported value
- $3.1bn
- combined, at the quarter end
Among the 95 comparable managers: 2 buyers (opened or added shares) and 2 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.
Managers listing SIRI in Q2 2025
5 of 5 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Berkshire Hathaway Inc | 119,776,692 | $2.8bn | 1.07% | Held | 0 | 14 Aug 2025 (the filing on sec.gov) |
| AQR Capital Management LLC | 5,191,440 | $117m | 0.10% | Added | +3,233,922 | 14 Aug 2025 (the filing on sec.gov) |
| Point72 Asset Management LP | 4,195,286 | $96m | 0.19% | New | new | 14 Aug 2025 (the filing on sec.gov) |
| D. E. Shaw & Co. | 4,174,612 | $96m | 0.07% | Trimmed | -222,490 | 14 Aug 2025 (the filing on sec.gov) |
| GAMCO Investors Inc | 467,845 | $11m | 0.11% | Trimmed | -9,588 | 13 Aug 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Point72 Asset Management LPnew position · 4,195,286 shares now+4,195,286
- AQR Capital Management LLCexisting position · 5,191,440 shares now+3,233,922
Reductions
- D. E. Shaw & Co.existing position · 4,174,612 shares now-222,490
- GAMCO Investors Incexisting position · 467,845 shares now-9,588
New positions and exits
New (1)
Exited (0)
No exit shown by a manager’s own filing.
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q3 2024 | 9 | $2.6bn | 9 | 0 |
| Q4 2024 | 3 | $2.8bn | 2 | 3 |
| Q1 2025 | 6 | $2.9bn | 5 | 1 |
| Q2 2025 | 5 | $3.1bn | 2 | 2 |
| Q3 2025 | 10 | $3.1bn | 7 | 3 |
| Q4 2025 | 5 | $2.6bn | 8 | 23 |
| Q1 2026 | 5 | $2.9bn | 16 | 13 |
| Q2 2026 | 8 | $3.8bn | 19 | 13 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
SIRI and NFLX →SIRI and TMUS →SIRI and CMCSA →Choose a stock to compare with SIRI →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own SIRI, latest filings →Back to the 13F Explorer →