- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 12 May 2026
- Managers listing it
- 30
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 4 listed it in both
- Shares listed
- 138,035,607
- combined, among listed positions
- Reported value
- $3.2bn
- combined, at the quarter end
AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.
Among the 91 comparable managers: 16 buyers (opened or added shares) and 13 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -448,248.
Managers listing SIRI in Q1 2026
30 of 30 holders
Largest increases and reductions, by shares
Increases
- Citadel Advisors LLCexisting position · 3,261,642 shares now+2,471,334
- AQR Capital Management LLCexisting position · 2,988,907 shares now+1,538,960
- PDT Partners LLCnew position · 475,186 shares now+475,186
- Jane Street Group LLCexisting position · 609,494 shares now+335,100
- ExodusPoint Capital Management LPnew position · 269,655 shares now+269,655
Reductions
- D. E. Shaw & Co.existing position · 101,528 shares now-3,204,714
- Two Sigma Investments LPexisting position · 1,777,219 shares now-741,568
- Point72 Asset Management LPexisting position · 355,082 shares now-591,018
- Susquehanna International Group LLPexisting position · 899,785 shares now-479,842
- Balyasny Asset Management LLCexisting position · 283,289 shares now-297,552
New positions and exits
New (8)
Exited (1)
- Tudor Investment Corpwas $2.8m
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 →