Silicon Motion (ADR) (SIMO)
Designs NAND-flash controllers for SSD and embedded storage.
$270.58
vs last close−12.68 (−4.48%)
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13F · 13D/G · Form 4
| Institutions | ≈ 71.97% | 24.15M ADS | |
|---|---|---|---|
| 405 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 3.36% | 1.13M ADS | |
| 13 holders · as of Jun 24, 2026 | |||
| Strategic holders | 2.84% | 951.5K ADS | |
| 2 holders · as of Feb 14, 2022 | |||
| Other | ≈ 21.83% | 7.33M ADS | |
| remainder | |||
33.56M ADS (1 ADS = 4 ordinary shares) as of Sep 18, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
The share count is from the company's Dec 2022 annual report; nothing newer is on file here.
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
13F, as of Jun 30, 2026
405 holders · 24.15M shares · 151 new positions · 232 increased · 133 reduced · 39 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| FMR LLC | 2.28M | 6.79% | −1.12M | Aug 13, 2026 |
| Acadian Asset Management LLC | 1.32M | 3.92% | +22.1K | Aug 13, 2026 |
| Invesco Ltd. | 1.14M | 3.40% | +724.2K | Aug 14, 2026 |
| Alkeon Capital Management LLC | 1.10M | 3.28% | +1.10Mnew | Aug 14, 2026 |
| Hawk Ridge Capital Management LP | 1.02M | 3.03% | −158.1K | Aug 14, 2026 |
| Reinhart Partners, Inc. | 966.1K | 2.88% | −348.0K | Jul 8, 2026 |
| Polar Capital Holdings PLC | 931.4K | 2.78% | +931.4Knew | Aug 14, 2026 |
| Driehaus Capital Management LLC | 786.1K | 2.34% | +276.1K | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| FMR LLC | 10.00% | 13.59M | 13G | Dec 5, 2025 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jun 18, 2026 | Kuan-Ming Lindirector | Sale | 1,000 | $320.31 | 7,500 |
| Jun 17, 2026 | Kuan-Ming Lindirector | Sale · 2 lots | 2,000 | $305.01 | 8,500 |
| Jun 18, 2026 | Han-Ping Shiehdirector | Sale | 1,000 | $328.00 | 6,656 |
| Jun 2, 2026 | Han-Ping Shiehdirector | Sale | 1,000 | $301.25 | 7,656 |
| May 6, 2026 | Shii Tyng Duanndirector | Sale | 1,500 | $245.00 | 15,200 |
House and Senate disclosures
Not reported.