SiriusXM
SIRI
543 hedge funds and large institutions have $5.66B invested in SiriusXM in 2025 Q3 according to their latest regulatory filings, with 72 funds opening new positions, 145 increasing their positions, 176 reducing their positions, and 69 closing their positions.
169% more call options, than puts
Call options by funds: $471M | Put options by funds: $175M
11% more funds holding in top 10
Funds holding in top 10: 9 → 10 (+1)
4% more first-time investments, than exits
New positions opened: 72 | Existing positions closed: 69
0% more capital invested
Capital invested by funds: $5.65B → $5.66B (+$5.42M)
0.63% less ownership
Funds ownership: 72.81% → 72.17% (-0.63%)
1% less funds holding
Funds holding: 549 → 543 (-6)
18% less repeat investments, than reductions
Existing positions increased: 145 | Existing positions reduced: 176
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Berkshire Hathaway
Omaha,
Nebraska
|
+$116M |
| 2 |
Citadel Advisors
Miami,
Florida
|
+$42.4M |
| 3 |
Canada Pension Plan Investment Board
Toronto Ontario,
Ontario, Canada
|
+$35M |
| 4 |
Two Sigma Investments
New York
|
+$32.6M |
| 5 |
CCM
Check Capital Management
Costa Mesa,
California
|
+$20.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Point72 Asset Management
Stamford,
Connecticut
|
-$65.2M |
| 2 |
AQR Capital Management
Greenwich,
Connecticut
|
-$55.7M |
| 3 |
Millennium Management
New York
|
-$41.3M |
| 4 |
Dimensional Fund Advisors
Austin,
Texas
|
-$36.6M |
| 5 |
Bank of America
Charlotte,
North Carolina
|
-$26M |
SIRI Hedge Fund Activity: Q3 2025 in Review
543 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in SiriusXM (SIRI) for Q3 2025, worth a combined $5.66B — up 0.1% from $5.65B a quarter earlier.
Buyers outnumbered sellers: 72 funds opened new SIRI positions and 69 closed out — a net gain of 3 holders — while 145 added to existing stakes and 176 trimmed.
The largest buyer was Berkshire Hathaway, adding an estimated $116M. The largest seller was Point72 Asset Management, cutting an estimated $65.2M.
- 543 institutional investors held SiriusXM (SIRI) as of Q3 2025, down from 549 in Q2 2025.
- Funds reported $5.66B of SiriusXM stock for Q3 2025, up 0.1% quarter-over-quarter.
- 72 funds opened new SiriusXM positions in Q3 2025 and 69 closed out, a net change of +3 holders.
- The largest SiriusXM buyer in Q3 2025 was Berkshire Hathaway, an estimated $116M added.
- The largest SiriusXM seller in Q3 2025 was Point72 Asset Management, an estimated $65.2M sold.
Based on aggregated 13F filings for Q3 2025.