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Silicon Motion Technology CORP

SIMO·Nasdaq·Hong Kong Hong Kong·Insider activity
$284.96
+2.51 (+0.89%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
SIMO
Insider purchases and sales on the price
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
SIMOS&P 500 (rebased)
Insider BuyInsider SellForm 144 · planned sale
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair

In the last 180 days, SIMO insiders filed 0 purchases ($0) and 6 sales ($1.9M) on the open market, by 3 insiders. Newest filing Jun 24, 2026 (3 months ago).

Net Insider Buying by Quarter

Shares bought (+) or sold (−) on the open market by SIMO insiders · Form 4 · last two years
-10.0K-5,00005,00010.0K2025 Q1: 02025 Q12025 Q2: 02025 Q22025 Q3: 02025 Q32025 Q4: 02025 Q42026 Q1: 02026 Q12026 Q2: -6,5002026 Q22026 Q3: 02026 Q32026 Q4: 02026 Q4

On Record

$0Purchases · 180 days
$1.9MSales · 180 days
6Open-market transactions on record
3Insiders filing · 180 days

Purchases (code P) and sales (code S) of SIMO common stock reported on Form 4, with Form 5 annual catch-ups. Grants, option exercises, gifts and tax withholding are not shown. Dollars are shares × the stated price; a price outside anything the stock traded at that day is withheld (n/c).

Insider Transactions

6 on record · newest trade first
AllPurchasesSalesOfficers & directors
InsiderTypeSharesPriceValueHeld afterTradedFiled
SHIEH HAN-PINGDirector Sale −1,000 $328.00 $328K6,656direct Jun 18, 2026Jun 24, 2026 Form 4 ↗
LIN KUAN-MINGDirector Sale −1,000 $320.31 $320K7,500direct Jun 18, 2026Jun 24, 2026 Form 4 ↗
LIN KUAN-MINGDirector Sale −1,000 $310.01 $310K8,500direct Jun 17, 2026Jun 24, 2026 Form 4 ↗
LIN KUAN-MINGDirector Sale −1,000 $300.00 $300K9,500direct Jun 17, 2026Jun 24, 2026 Form 4 ↗
SHIEH HAN-PINGDirector Sale −1,000 $301.25 $301K7,656direct Jun 2, 2026Jun 24, 2026 Form 4 ↗
DUANN SHII TYNGDirector Sale −1,500 $245.00 $368K15.2Kdirect May 6, 2026May 7, 2026 Form 4 ↗

Source: SEC EDGAR Form 4 and Form 5 filings, SEC's quarterly bulk dataset through Jun 30, 2026, and KeyVex's half-hourly read of new filings since. Every row links its filing. Amendments are marked. Nothing here is a recommendation. All insider activity, market-wide →