SIMO
Silicon Motion Technology Corporation · Technology · Semiconductors
Momentum inputs (comparable managers):
holder breadth -7.7% ·
share flow +1.8% ·
net new positions -8.3%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 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 | Adage Capital Partners ✦ | 893.44K | +55.8% | $54.27M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 2 | Millennium Management ✦ | 783.75K | -1.0% | $47.60M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | Wellington Management ✦ | 568.86K | -26.1% | $34.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | Wellington Management ✦ | 568.86K | -26.1% | $34.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | Wellington Management ✦ | 568.86K | -26.1% | $34.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | Wellington Management ✦ | 568.86K | -26.1% | $34.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | Wellington Management ✦ | 568.86K | -26.1% | $34.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | Citadel Advisors ✦ | 309.76K | +12.8% | $18.81M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | Citadel Advisors ✦ | 309.76K | +12.8% | $18.81M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | Two Sigma Investments ✦ | 265.69K | -4.6% | $16.14M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | Renaissance Technologies ✦ | 254.38K | +123.4% | $15.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | Norges Bank ✦ (passive) | 190.00K | +336.3% | $11.54M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 13 | Marshall Wace ✦ | 116.29K | +28.8% | $7.06M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | Marshall Wace ✦ | 116.29K | +28.8% | $7.06M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | Geode Capital Management ✦ (passive) | 35.95K | +0.7% | $2.18M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | Point72 Asset Management ✦ | 30.50K | -57.8% | $1.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | Arrowstreet Capital ✦ | 658.87K | -15.6% | $1.26M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | D. E. Shaw & Co. ✦ | 20.68K | -90.9% | $1.26M | 0.0% | ▼ Trim | 2 | 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
| GAMCO Investors | $247,991 | 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.