Silicon Motion Technology Corporation (SIMO) Insider Trading
Over the last 3 months, SIMO insiders made 0 open-market buys and 3 sales, a net sale of -$969K (SEC Form 4). Over the last 6 months, 185 institutions increased and 178 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
3
Net (3m)
-$968.8K
Insider trades by month Buys Sells
May
Jun
Context3-month price +190%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 24, 2026 | SHIEH HAN-PINGdirector | Sell | 1,000 | $301.25 |
| Jun 24, 2026 | LIN KUAN-MINGdirector | Sell | 1,000 | $300.00 |
| May 7, 2026 | DUANN SHII TYNGdirector | Sell | 1,500 | $245.00 |
Source: SIMO SEC Form 4 filings, latest Jun 24, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their SIMO positions over the last 6 months (SEC Form 13F).
Increased
185
New positions
99
Reduced
178
Sold out
46
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| FMR LLC | Increased | 3.4M | Feb 17, 2026 |
| FMR LLC | Unchanged | 3.4M | May 15, 2026 |
| REINHART PARTNERS, INC. | Increased | 1.6M | Feb 10, 2026 |
| REINHART PARTNERS, INC. | Reduced | 1.3M | Apr 13, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 1.3M | May 13, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | 1.3M | Feb 10, 2026 |
| HAWK RIDGE CAPITAL MANAGEMENT LP | Increased | 1.2M | May 15, 2026 |
| PERTENTO PARTNERS LLP | Reduced | 1.2M | Feb 17, 2026 |
| LORD, ABBETT & CO. LLC | Reduced | 995K | Feb 13, 2026 |
| LORD, ABBETT & CO. LLC | Reduced | 962K | May 14, 2026 |
| HAWK RIDGE CAPITAL MANAGEMENT LP | Increased | 788K | Feb 17, 2026 |
| LAZARD ASSET MANAGEMENT LLC | Increased | 782K | May 15, 2026 |
| LAZARD ASSET MANAGEMENT LLC | Reduced | 759K | Feb 17, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 697K | Feb 17, 2026 |
| INVESCO LTD. | Reduced | 632K | Feb 19, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.