Silicon Motion Technology Corporation (SIMO)
Nasdaq: SIMO · Semiconductors & Related Devices · Hong Kong Island, HK · filing with the SEC since 2005
Who owns Silicon Motion Technology Corporation
As filed with the SECHolders of 5% or more
1
Fmr LLC holds 6.7% of COMMON STOCK, as its SCHEDULE 13G/A filed Aug 6, 2026 says.
Directors and officers
13
report now, of 13 people on the record since 2026. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 1 named at left.
Holders of 5% or moreshare of the class, as filed
Fmr LLC
SCHEDULE 13G/A · filed Aug 6, 2026 · COMMON STOCK · 10% in Dec 5, 2025
What SIMO reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Maxlinear Inc
An entity · legal entity · owns, named in the 20-F filed Apr 30, 2026
BIWIN Storage Technology Corp.(BIWIN)
An investee · investee · invested in, named in the 20-F filed Apr 30, 2026
Kinara inc
An investee · investee · invested in, named in the 20-F filed Apr 30, 2026
Shenzhen Techwinsemi Technology Corp (TWSC)
An investee · investee · invested in, named in the 20-F filed Apr 30, 2026
3 subsidiaries in 3 countries, from the list filed with the 20-F filed Apr 30, 2024.
Insider tradesForm 4
6sales
0purchases
0sales on a scheduled plan
3people selling
$1.9Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window3 of 13 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Lin Kuan-Ming | director | 3 | $900,000 | 0 | 0 | $0 |
| Shieh Han-Ping | director | 2 | $600,000 | 0 | 0 | $0 |
| Duann Shii Tyng | director | 1 | $400,000 | 0 | 0 | $0 |