DUANN SHII TYNG 4
4 · Silicon Motion Technology CORP · Filed May 7, 2026
Research Summary
AI-generated summary of this filing
Silicon Motion (SIMO) Director Duann Shii Tyng Sells Shares
What Happened
Duann Shii Tyng, a director of Silicon Motion Technology Corp. (SIMO), sold 1,500 American depositary shares (ADS) in an open-market sale on May 6, 2026, at $245.00 per ADS for a total transaction value of $367,500.
Key Details
- Transaction date and type: 2026-05-06 — Open-market sale (Code: S).
- Price and value: 1,500 ADS × $245.00 = $367,500.
- ADS conversion note (per filing footnote F1): each ADS represents 4 ordinary shares, so 1,500 ADS = 6,000 underlying ordinary shares.
- Shares owned after the transaction: not specified in the provided filing summary.
- Filing date/timeliness: Form 4 filed 2026-05-07 (transaction reported within the standard two-business-day window).
Context
This was a straight sale of ADSs by a company director. Sales are common insider transactions for liquidity or portfolio reasons and do not, by themselves, indicate the insider’s view of the company’s prospects.
Insider Transaction Report
Form 4
DUANN SHII TYNG
Director
Transactions
- Sale
American depositary shares
[F1]2026-05-06$245.00/sh−1,500$367,500→ 15,200 total
Footnotes (1)
- [F1]Each American depositary share represents four ordinary shares, US$0.01 par value per share, of Silicon Motion Technology Corp.
Signature
/s/ Shii Tyng Duann|2026-05-06