Who owns Silicon Motion Technology CORP?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of SIMO from SEC Form 13F filings across 384 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 384 institutions disclosed 24.8M shares of Silicon Motion Technology CORP worth $8.19B — about 73.9% of shares outstanding; the largest disclosed holder is FMR LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
384
13F holders
$8.19B
value, 2026 filers
73.9%
of shares outstanding (24.8M sh)
153
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of SIMO's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | 2.3M | $759.3M | 0.0% | 6.8% | -33.0% |
| 2 | ACADIAN ASSET MANAGEMENT LLC | 1.3M | $438.5M | 0.5% | 3.9% | +1.7% |
| 3 | Invesco Ltd. | 1.1M | $380.8M | 0.0% | 3.4% | +173.1% |
| 4 | ALKEON CAPITAL MANAGEMENT LLCNEW | 1.1M | $366.7M | 0.5% | 3.3% | new |
| 5 | HAWK RIDGE CAPITAL MANAGEMENT LP | 1.0M | $338.4M | 10.9% | 3% | -13.5% |
| 6 | REINHART PARTNERS, LLC. | 966,060 | $322.0M | 7.4% | 2.9% | -26.5% |
| 7 | Polar Capital Holdings PlcNEW | 931,375 | $310.5M | 0.7% | 2.8% | new |
| 8 | Driehaus Capital Management LLC | 786,074 | $262.0M | 1.5% | 2.3% | +54.1% |
| 9 | TWO SIGMA INVESTMENTS, LP | 701,105 | $233.7M | 0.2% | 2.1% | +155.3% |
| 10 | Wolf Hill Capital Management, LP | 548,791 | $182.9M | 15.3% | 1.6% | -5.5% |
| 11 | Bahl & Gaynor LLCNEW | 453,307 | $151.1M | 0.7% | 1.4% | new |
| 12 | Granahan Investment Management, LLC | 445,752 | $148.6M | 5.3% | 1.3% | +128.3% |
| 13 | LAZARD ASSET MANAGEMENT LLC | 435,931 | $145.3M | 0.2% | 1.3% | -44.3% |
| 14 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 417,894 | $139.3M | 0.1% | 1.2% | -1.8% |
| 15 | LORD, ABBETT & CO. LLC | 377,899 | $126.0M | 0.4% | 1.1% | -60.7% |
| 16 | D. E. Shaw & Co., Inc.NEW | 363,105 | $121.0M | 0.1% | 1.1% | new |
| 17 | Analog Century Management LP | 362,502 | $120.8M | 4.4% | 1.1% | -32.7% |
| 18 | SYSTEMATIC FINANCIAL MANAGEMENT LP | 354,216 | $118.1M | 2.4% | 1.1% | -30.1% |
| 19 | BIT Capital GmbHNEW | 349,195 | $116.4M | 3.4% | 1% | new |
| 20 | OBERWEIS ASSET MANAGEMENT INC/ | 316,350 | $105.4M | 2.2% | 0.9% | +12.0% |
| 21 | Robeco Institutional Asset Management B.V. | 299,699 | $99.9M | 0.1% | 0.9% | -52.5% |
| 22 | MARSHALL WACE, LLP | 291,836 | $97.3M | 0.1% | 0.9% | +5.5% |
| 23 | MORGAN STANLEY | 291,727 | $97.2M | 0.0% | 0.9% | +38.3% |
| 24 | BANK OF AMERICA CORP /DE/ | 276,785 | $92.3M | 0.0% | 0.8% | +13.3% |
| 25 | VOYA INVESTMENT MANAGEMENT LLC | 275,122 | $91.7M | 0.1% | 0.8% | -28.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.