Silicon Motion Technology CORP (SIMO)
Latest SIMO Insider Trades
About Silicon Motion Technology CORP (SIMO)
Silicon Motion Technology Corp is engaged in developing NAND flash controllers for SSDs and other solid-state storage devices. Its only operating segment is to develop NAND flash controllers and SSD solutions. The company derives revenue from product categories such as Mobile Storage, Mobile Communications, and others. Silicon's geographical segments are Taiwan, the United States, Korea, China, Singapore, Malaysia, and others. The company's products are used in Personal Computing, Smartphone/Tablet/CE, Flash Card/USB Flash Drive, Industrial and Embedded, Automotive, and Enterprise and Data centers.
- 2,009
- 2005
- XNAS
90-Day SEC Filing Activity
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 5 | 5,000 | $1.56M |
SIMO Insider Transactions (Form 4)
63 Form 4 filings on record, the earliest from May 7, 2026, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Han-Ping Shieh | Open-market sale | American depositary shares | 1,000 | $301.25 |
Recent SIMO Form 144 Notices of Proposed Sale
3A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - |
SIMO Insider Trading - FAQ
What is the latest insider trade for SIMO?
Silicon Motion Technology CORP (SIMO) had 2 insider filings in the last 90 days, with the most recent on 2026-06-24. The full record for SIMO runs to 3 Form 4 filings, the earliest from 2026-05-07. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying SIMO stock?
No insider purchases of SIMO were filed in the last 90 days.
How many insiders are selling SIMO stock?
5 insider sales of SIMO were filed in the last 90 days, totaling $1.56M.
Where can I see SIMO SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page tracks SIMO Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow SIMO insider buys?
Create a free InsiderAlpha account and press Watch on this page to add SIMO to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Companies with Insider Activity
Recent Insider Filings
3Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
- - Han-Ping Shieh view on EDGAR
- - Kuan-Ming Lin view on EDGAR
- - Shii Tyng Duann view on EDGAR
Learn More
- What is SEC Form 4?
- The filing insiders must submit within two business days of a trade, and how to read its transaction codes.
- Insider activity by sector
- Where buying and selling is concentrated across the eleven GICS sectors.
- Every recent Form 4
- The full market-wide feed, updated as filings arrive from SEC EDGAR.
Track SIMO insider activity as it files
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
