SIRI
Sirius XM Holdings Inc. · Communication Services · Broadcasting
Momentum inputs (comparable managers):
holder breadth +11.8% ·
share flow +4.1% ·
net new positions +10.5%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 2 | 0 | 116.07K | $2.85M | n/a | −1 |
| Q2 2026 | 116 | -7 | 226.87M | $6.66B | +9 | −17 |
| Q1 2026 | 127 | +4 | 212.07M | $4.80B | +15 | −12 |
| Q4 2025 | 124 | -1 | 216.94M | $4.26B | +1 | −1 |
| Q3 2025 | 22 | +1 | 178.61M | $4.16B | +1 | −1 |
| Q2 2025 | 19 | +2 | 176.74M | $4.06B | +3 | −1 |
| Q1 2025 | 14 | 0 | 141.16M | $3.18B | +1 | −1 |
| Q4 2024 | 14 | 0 | 132.43M | $3.02B | +2 | −2 |
| Q3 2024 | 13 | 0 | 120.23M | $2.84B | +3 | −3 |
| Q2 2024 | 13 | n/a | 191.59M | $542.08M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Berkshire Hathaway ✦ | 119.78M | 0.0% | $2.75B | 1.1% | Held | 5 | SEC ↗ ×4 |
| 2 | The Vanguard Group ✦ (passive) | 19.32M | n/a | $443.87M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 3 | BlackRock ✦ (passive) | 8.67M | n/a | $199.07M | 0.0% | n/c | 1 | SEC ↗ ×17 |
| 4 | AQR Capital Management ✦ | 5.19M | +165.2% | $117.33M | 0.1% | ▲ Add | 5 | SEC ↗ ×6 |
| 5 | Point72 Asset Management ✦ | 4.20M | New | $96.37M | 0.2% | New | 1 | SEC ↗ |
| 6 | D. E. Shaw & Co. ✦ | 4.17M | -5.1% | $95.89M | 0.1% | ▼ Trim | 5 | SEC ↗ ×2 |
| 7 | Geode Capital Management ✦ (passive) | 3.94M | -2.2% | $90.61M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 8 | State Street Global Advisors ✦ (passive) | 3.69M | -0.1% | $84.74M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 9 | Millennium Management ✦ | 2.12M | +139.4% | $48.65M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | Norges Bank ✦ (passive) | 1.88M | +10.5% | $43.15M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | Gotham Asset Management ✦ | 845.35K | +27.2% | $19.42M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 12 | Citadel Advisors ✦ | 647.38K | -25.0% | $14.87M | 0.0% | ▼ Trim | 4 | SEC ↗ ×2 |
| 13 | Fidelity (FMR) ✦ | 582.66K | n/a | $13.38M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 14 | Adage Capital Partners ✦ | 531.40K | 0.0% | $12.21M | 0.0% | Held | 4 | SEC ↗ |
| 15 | Two Sigma Investments ✦ | 522.56K | -59.6% | $12.00M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 16 | GAMCO Investors ✦ | 467.85K | -2.0% | $10.75M | 0.1% | ▼ Trim | 5 | SEC ↗ ×2 |
| 17 | T. Rowe Price ✦ | 140.62K | -7.2% | $3.23M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 18 | Marshall Wace ✦ | 28.94K | New | $664,684 | 0.0% | New | 1 | SEC ↗ |
| 19 | Tweedy, Browne ✦ | 12.56K | New | $288,503 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $96.37M | 0.2% |
| Marshall Wace | $664,684 | 0.0% |
| Tweedy, Browne | $288,503 | 0.0% |
Exited
| Arrowstreet Capital | $16.60M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 5 holders, 64.19K shares, $1.31M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.