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The company

Silicon Motion Technology Corporation - American Depositary Shares, each representing four

SIMO · Nasdaq

TechnologySemiconductorsJust dropped outData-Center Infrastructure

SIMO stood above a rising 150-day average in 51 of the last 52 weekly readings, and has been out of that trend for the last 1 week. It is 9.4% below that average now. Semiconductors: 24% of its 68 stocks in an uptrend (−18 points in four weeks); Technology: 30% (−5 points in four weeks).

SEC filings

Statistics

Rotation: Just dropped out
Weeks in an uptrend: out for 1
Industry in uptrend: 24% -18 in 4 wk
Insider buys, 12 months: $0
Insider sales, 12 months: $3.9M
Officials’ trades on record: 1
Institutions holding: 365 (+115)

In the rotation

Each square a week: lit when it closed above a rising 150-day average. 51 of 52 weeks.

20 Apr – 19 Oct

Semiconductors: A minority of its stocks are in an uptrend and the share has fallen sharply over four weeks. Technology: A minority of its stocks are in an uptrend and the share has been slipping.

Money in and out

1 Nov 2024 – 1 Oct 2026

Open-market buys above the line and sales below, in dollars.

Congress and officials

1 disclosed lines: House 1, Senate 0, executive 0; 1 people.

Who	Did	Amount	Traded
Rubén Hinojosa House: U.S. House ClerkTX15	bought	$1k–$15k	19 Jul 2016filed 23 Sep 2016

Insiders

Buy orders, 12 months0

Sale orders, 12 months5

Buyers · sellers0 · 3

Who	Did	Shares	Traded
Kuan-Ming LinDirector	sold	1,000at $320.31	18 Jun 2026filed 24 Jun 2026
Han-Ping ShiehDirector	sold	1,000at $328.00	18 Jun 2026filed 24 Jun 2026
Kuan-Ming LinDirector	sold	1,000at $300.00	17 Jun 2026filed 24 Jun 2026
Kuan-Ming LinDirector	sold	1,000at $310.01	17 Jun 2026filed 24 Jun 2026
Han-Ping ShiehDirector	sold	1,000at $301.25	2 Jun 2026filed 24 Jun 2026
Shii Tyng DuannDirector	sold	1,500at $245.00	6 May 2026filed 7 May 2026

Lines filed since 2 January 2026, newest first; every insider’s older lines are on their own page.

Institutions

Holders365+115 on the quarter

New · exited148 · 35

Reported value$7.6B

Quarter to 30 Jun 2026, against 31 Mar 2026; newest filing 31 Aug 2026.

Manager	Shares	Change
FMR LLCreduced · filed 13 Aug 2026	2,277,824$759.3M	-1,120,543−33.0%
Invesco Ltd.added · filed 14 Aug 2026	1,142,437$380.8M	+724,152+173.1%
ALKEON CAPITAL MANAGEMENT LLCnew · filed 14 Aug 2026	1,100,000$366.7M	+1,100,000
HAWK RIDGE CAPITAL MANAGEMENT LPreduced · filed 14 Aug 2026	1,015,215$338.4M	-158,100−13.5%
REINHART PARTNERS, LLC.reduced · filed 8 Jul 2026	966,060$322.0M	-347,979−26.5%
Polar Capital Holdings Plcnew · filed 14 Aug 2026	931,375$310.5M	+931,375
Driehaus Capital Management LLCadded · filed 14 Aug 2026	786,074$262.0M	+276,099+54.1%
TWO SIGMA INVESTMENTS, LPadded · filed 14 Aug 2026	701,105$233.7M	+426,528+155.3%
Wolf Hill Capital Management, LPreduced · filed 13 Aug 2026	548,791$182.9M	-32,061−5.5%
Bahl & Gaynor LLCadded · filed 13 Aug 2026	453,307$151.1M	+297,742+191.4%