SIMO
Silicon Motion Technology Corporation · Technology · Semiconductors
Momentum inputs (comparable managers):
holder breadth -23.1% ·
share flow -30.0% ·
net new positions -20.0%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 97 | +16 | 11.93M | $3.93B | +20 | −5 |
| Q1 2026 | 83 | +8 | 12.24M | $1.37B | +13 | −5 |
| Q4 2025 | 74 | -1 | 11.65M | $1.08B | — | −1 |
| Q3 2025 | 17 | -1 | 6.28M | $595.70M | — | −1 |
| Q2 2025 | 15 | +3 | 5.93M | $445.74M | +3 | — |
| Q1 2025 | 10 | 0 | 2.13M | $107.46M | — | — |
| Q4 2024 | 10 | -3 | 2.89M | $156.33M | — | −3 |
| Q3 2024 | 12 | -1 | 4.13M | $211.99M | — | −1 |
| Q2 2024 | 13 | — | 4.05M | $328.38M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wellington Management ✦ | 797.19K | +40.1% | $43.09M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 2 | Wellington Management ✦ | 797.19K | +40.1% | $43.09M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | Wellington Management ✦ | 797.19K | +40.1% | $43.09M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | Wellington Management ✦ | 797.19K | +40.1% | $43.09M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | Wellington Management ✦ | 797.19K | +40.1% | $43.09M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | Wellington Management ✦ | 797.19K | +40.1% | $43.09M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | Adage Capital Partners ✦ | 628.21K | -29.7% | $33.95M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 8 | Millennium Management ✦ | 613.75K | -21.7% | $33.17M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 9 | Citadel Advisors ✦ | 324.15K | +4.7% | $17.52M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | Citadel Advisors ✦ | 324.15K | +4.7% | $17.52M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | Two Sigma Investments ✦ | 180.21K | -32.2% | $9.74M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | Renaissance Technologies ✦ | 138.58K | -45.5% | $7.49M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 13 | Point72 Asset Management ✦ | 69.63K | +128.3% | $3.76M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | State Street Global Advisors ✦ (passive) | 55.61K | — | $3.01M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | Marshall Wace ✦ | 48.67K | -58.1% | $2.63M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 16 | Marshall Wace ✦ | 48.67K | -58.1% | $2.63M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 17 | Marshall Wace ✦ | 48.67K | -58.1% | $2.63M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 18 | Marshall Wace ✦ | 48.67K | -58.1% | $2.63M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 19 | Geode Capital Management ✦ (passive) | 36.25K | +0.8% | $1.96M | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Norges Bank | $11.54M | was 0.0% |
| Arrowstreet Capital | $1.26M | was 0.0% |
| D. E. Shaw & Co. | $1.26M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 270 holders, 27.06M shares, $2.75B 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.