SiriusXM
SIRI
559 hedge funds and large institutions have $5.98B invested in SiriusXM in 2026 Q1 according to their latest regulatory filings, with 122 funds opening new positions, 182 increasing their positions, 116 reducing their positions, and 65 closing their positions.
88% more first-time investments, than exits
New positions opened: 122 | Existing positions closed: 65
57% more repeat investments, than reductions
Existing positions increased: 182 | Existing positions reduced: 116
49% more call options, than puts
Call options by funds: $226M | Put options by funds: $152M
20% more capital invested
Capital invested by funds: $4.99B → $5.98B (+$992M)
9% more funds holding
Funds holding: 513 → 559 (+46)
3.31% more ownership
Funds ownership: 74.06% → 77.37% (+3.3%)
0% more funds holding in top 10
Funds holding in top 10: 8 → 8 (0)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Dimensional Fund Advisors
Austin,
Texas
|
+$98M |
| 2 |
GCM
Gates Capital Management
New York
|
+$58.9M |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$53.1M |
| 4 |
Canada Pension Plan Investment Board
Toronto Ontario,
Ontario, Canada
|
+$42.7M |
| 5 |
AQR Capital Management
Greenwich,
Connecticut
|
+$33.1M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
D.E. Shaw & Co
New York
|
-$68.9M |
| 2 |
Pacer Advisors
Malvern,
Pennsylvania
|
-$34.5M |
| 3 |
Two Sigma Investments
New York
|
-$15.9M |
| 4 |
JGC
J. Goldman & Co
New York
|
-$14.2M |
| 5 |
Point72 Asset Management
Stamford,
Connecticut
|
-$12.7M |
SIRI Hedge Fund Activity: Q1 2026 in Review
559 of the 8,130 institutional investors tracked by Wall St. Rank reported a position in SiriusXM (SIRI) for Q1 2026, worth a combined $5.98B — up 20% from $4.99B a quarter earlier.
Buyers outnumbered sellers: 122 funds opened new SIRI positions and 65 closed out — a net gain of 57 holders — while 182 added to existing stakes and 116 trimmed.
The largest buyer was Dimensional Fund Advisors, adding an estimated $98M. The largest seller was D.E. Shaw & Co, cutting an estimated $68.9M.
- 559 institutional investors held SiriusXM (SIRI) as of Q1 2026, up from 513 in Q4 2025.
- Funds reported $5.98B of SiriusXM stock for Q1 2026, up 20% quarter-over-quarter.
- 122 funds opened new SiriusXM positions in Q1 2026 and 65 closed out, a net change of +57 holders.
- The largest SiriusXM buyer in Q1 2026 was Dimensional Fund Advisors, an estimated $98M added.
- The largest SiriusXM seller in Q1 2026 was D.E. Shaw & Co, an estimated $68.9M sold.
Based on aggregated 13F filings for Q1 2026.