Ticker · CUSIP 829933100
Holders (tracked)
26
Combined shares
143,435,116
Combined value
$2.87B
Last close
$24.73
Quarter
2025Q4
Tracked holders · last 8 quarters
+8 vs previous quarter over the last 6.
Price is +23.8% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
25 events
- D.E. Shaw & Co. trimmed2026-02-17−409,960 shares · 2025Q413F
- Two Sigma Investments added2026-02-17+585,266 shares · 2025Q413F
- Steve Cohen (Point72) trimmed2026-02-17−431,151 shares · 2025Q413F
- T. Rowe Price trimmed2026-02-17−1,311 shares · 2025Q413F
- +137,995 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−87,716 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−1,332,434 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−1,687,820 shares · 2025Q413F
- Lee Ainslie (Maverick Capital) added2026-02-13+98,338 shares · 2025Q413F
- −138,686 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+2,856,916 shares · 2025Q413F
- Mario Gabelli (GAMCO) trimmed2026-02-05−38,934 shares · 2025Q413F
- −48,285 shares · 2025Q313F
- AQR Capital Management trimmed2025-11-14−2,409,059 shares · 2025Q313F
- +5,030,425 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−1,786,520 shares · 2025Q313F
- Steve Cohen (Point72) trimmed2025-11-14−2,818,035 shares · 2025Q313F
- Two Sigma Investments added2025-11-14+1,410,963 shares · 2025Q313F
- D.E. Shaw & Co. trimmed2025-11-14−458,410 shares · 2025Q313F
- +150,253 shares · 2025Q313F
- T. Rowe Price added2025-11-14+10,004 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-13−1,878,630 shares · 2025Q313F
- +226,993 shares · 2025Q313F
- Norges Bank (Norway SWF) opened position2025-11-12+2,231,572 shares · 2024Q313F
- Mario Gabelli (GAMCO) trimmed2025-11-12−4,672 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of SIRI…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions2
- Norges Bank (Norway SWF)+2,856,916$57.1M
- Paul Tudor Jones (Tudor Investment)+137,995$2.8M
Added to2
- Two Sigma Investments+585,266$11.7M
- Lee Ainslie (Maverick Capital)+98,338$2.0M
Trimmed8
- Ken Griffin (Citadel Advisors)−1,687,820$33.7M
- AQR Capital Management−1,332,434$26.6M
- Steve Cohen (Point72)−431,151$8.6M
- D.E. Shaw & Co.−409,960$8.2M
- Ray Dalio (Bridgewater Associates)−138,686$2.8M
- Izzy Englander (Millennium Mgmt)−87,716$1.8M
- Mario Gabelli (GAMCO)−38,934$778K
- T. Rowe Price−1,311$26
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2024Q3 | 17 | $2.78B |
| 2024Q4 | 20 | $3.08B |
| 2025Q1 | 18 | $3.14B |
| 2025Q2 | 20 | $3.31B |
| 2025Q3 | 18 | $3.32B |
| 2025Q4 | 26 | $2.87B |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2026-01-13 | August Lee Pfluger | Sell | $1K – $15K | PDF ↗ |
| 2025-07-01 | August Lee Pfluger | Sell | $1K – $15K | PDF ↗ |
| 2024-09-10 | August Lee Pfluger | Sell | $1K – $15K | PDF ↗ |
| 2024-09-10 | August Lee Pfluger | Sell | $1K – $15K | PDF ↗ |
Who owns SIRI
26 super-investors · 2025Q4
Tracked stake
143.44M
shares
Combined value
$2.87B
% of shares outstanding
—
shares-out unknown
Quarter action mix
New4Added4Trim16Held2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Warren Buffett Berkshire Hathaway | 124.81M | $2.50B |
| 2 | D.E. Shaw & Co. | 3.31M | $66M |
| 3 | Norges Bank Norway SWF | 2.86M | $57M |
| 4 | Two Sigma Investments | 2.52M | $50M |
| 5 | Ken Griffin Citadel Advisors | 1.84M | $37M |
| 6 | AQR Capital Management | 1.45M | $29M |
| 7 | Wally Weitz Weitz Investment | 1.38M | $28M |
| 8 | Steve Cohen Point72 | 946.1K | $19M |
| 9 | Ken Griffin Citadel Advisors | 849.0K | $17M |
| 10 | Ken Griffin Citadel Advisors | 790.3K | $16M |
| 11 | D.E. Shaw & Co. | 625.3K | $13M |
| 12 | Mario Gabelli GAMCO | 424.2K | $8M |
| 13 | Izzy Englander Millennium Mgmt | 395.4K | $8M |
| 14 | Lee Ainslie Maverick Capital | 248.6K | $5M |
| 15 | Izzy Englander Millennium Mgmt | 243.8K | $5M |
| 16 | Izzy Englander Millennium Mgmt | 184.5K | $4M |
| 17 | Paul Tudor Jones Tudor Investment | 138.0K | $3M |
| 18 | Ray Dalio Bridgewater Associates | 88.3K | $2M |
| 19 | D.E. Shaw & Co. | 50.0K | $1000K |
| 20 | Paul Tudor Jones Tudor Investment | 34.9K | $698K |
| 21 | Paul Tudor Jones Tudor Investment | 34.3K | $686K |
| 22 | Two Sigma Investments | 27.0K | $540K |
| 23 | Steve Cohen Point72 | 18.5K | $370K |
| 24 | Steve Cohen Point72 | 14.8K | $296K |
| 25 | Two Sigma Investments | 12.8K | $256K |
| 26 | T. Rowe Price | 149.3K | $3K |
Recent moves
20 transactions
- −431,151 · 2025Q4
- +585,266 · 2025Q4
- TRIMD.E. Shaw & Co.−409,960 · 2025Q4
- −1,332,434 · 2025Q4
- TRIMT. Rowe Price−1,311 · 2025Q4
- +137,995 · 2025Q4
- −1,687,820 · 2025Q4
- −87,716 · 2025Q4
- −138,686 · 2025Q4
- +98,338 · 2025Q4
- +2,856,916 · 2025Q4
- −38,934 · 2025Q4
- −48,285 · 2025Q3
- +5,030,425 · 2025Q3
- +10,004 · 2025Q3
- TRIMD.E. Shaw & Co.−458,410 · 2025Q3
- −1,786,520 · 2025Q3
- −2,818,035 · 2025Q3
- +1,410,963 · 2025Q3
- +150,253 · 2025Q3
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