KY Semiconductors & Semiconductor Equipment

Silicon Motion Technology Corp (SIMO)

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Track

Silicon Motion Technology Corp experienced significant insider trading activity recently, with eight transactions totaling over 1.5 million dollars in net value. All recorded movements involved selling shares, primarily by affiliates. Despite a 10.8 percent decline in stock price over the last quarter, the company reported strong results during its latest earnings report.
Ticker: SIMO Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Silicon Motion Technology Corp. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
SHIEH HAN-PING Non-Executive Director
Transaction date
Sale
Price
169.05
Quantity 14,964 -49.7%
Value US$1,972,902
LIN KUAN-MING Non-Executive Director
Transaction date
Sale
Price
433.94
Quantity 92,657 -18.3%
Value US$2,009,715
LIN KUAN-MING Non-Executive Director
Transaction date
Sale
Price
280.85
Quantity 52,138 -9.8%
Value US$501,140
LIN KUAN-MING Non-Executive Director
Transaction date
Sale
Price
300.00
Quantity 1,000 -9.5%
Value US$300,000
LIN KUAN-MING Affiliate
Transaction date
Proposed sale
Price
306.57
Quantity 10,500
Value US$3,219,000
SHIEH HAN-PING Non-Executive Director
Transaction date
Sale
Price
301.25
Quantity 1,000 -11.6%
Value US$301,250
SHIEH HAN-PING Affiliate
Transaction date
Proposed sale
Price
276.14
Quantity 2,000
Value US$552,280
Fan Robert C Officer Officer
Transaction date
Proposed sale
Price
272.45
Quantity 500
Value US$136,225
Fan Robert C Officer Officer
Transaction date
Proposed sale
Price
205.17
Quantity 1,100
Value US$225,687
1.4
DUANN SHII TYNG Non-Executive Director
Transaction date
Sale
Price
245.00
Quantity 1,500 -9.0%
Value US$367,500
1.4
DUANN SHII TYNG Affiliate
Transaction date
Proposed sale
Price
219.00
Quantity 1,500
Value US$328,500
Fan Robert Officer Officer
Transaction date
Proposed sale
Price
135.40
Quantity 2,000
Value US$270,800
Fan Robert Officer Officer
Transaction date
Proposed sale
Price
90.45
Quantity 3,000
Value US$271,350
1.4
DUANN SHII TYNG Affiliate
Transaction date
Proposed sale
Price
95.00
Quantity 1,000
Value US$95,000
LIN KUAN-MING Affiliate
Transaction date
Proposed sale
Price
90.00
Quantity 12,500
Value US$1,125,000
SHIEH HAN-PING Affiliate
Transaction date
Proposed sale
Price
84.85
Quantity 6,000
Value US$509,100
SHIEH HAN-PING Affiliate
Transaction date
Proposed sale
Price
76.38
Quantity 6,000
Value US$458,280
SHIEH HAN-PING Affiliate
Transaction date
Proposed sale
Price
72.00
Quantity 2,000
Value US$144,000
1.4
DUANN SHII TYNG Affiliate
Transaction date
Proposed sale
Price
53.54
Quantity 4,000
Value US$214,160
Fan Robert Officer Officer
Transaction date
Proposed sale
Price
60.32
Quantity 1,000
Value US$60,320
1.4
DUANN SHII TYNG Affiliate
Transaction date
Proposed sale
Price
54.00
Quantity 3,000
Value US$162,000
YU-CHEN CHIEN Director Non-Executive Director
Transaction date
Proposed sale
Price
82.06
Quantity 5,000
Value US$410,280
Fan Robert Officer Officer
Transaction date
Proposed sale
Price
80.56
Quantity 1,000
Value US$80,560
YU-CHEN CHIEN Director Non-Executive Director
Transaction date
Proposed sale
Price
75.68
Quantity 5,000
Value US$378,408
YU-CHEN CHIEN Director Non-Executive Director
Transaction date
Proposed sale
Price
76.42
Quantity 5,000
Value US$382,116
1.4
DUANN SHII TYNG Affiliate
Transaction date
Proposed sale
Price
78.58
Quantity 3,000
Value US$235,740
LIN KUAN-MING Affiliate
Transaction date
Proposed sale
Price
72.42
Quantity 15,300
Value US$1,108,026
Chung Tsung-Ming Affiliate
Transaction date
Proposed sale
Price
66.78
Quantity 12,800
Value US$854,784
Fan Robert Officer Officer
Transaction date
Proposed sale
Price
63.47
Quantity 4,000
Value US$253,880
Chung Tsung-Ming Affiliate
Transaction date
Proposed sale
Price
60.02
Quantity 15,000
Value US$900,300
1.4
DUANN SHII TYNG Affiliate
Transaction date
Proposed sale
Price
53.16
Quantity 2,000
Value US$106,320
YEH HUNG HSIANG Affiliate
Transaction date
Proposed sale
Price
53.00
Quantity 4,200
Value US$222,600
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-24 2026-06-18 S Sale
SHIEH HAN-PING
Non-Executive Director
14,964 -49.7%
169.05
US$1,972,902 		14,964 -49.7% 169.05 US$1,972,902
2026-06-24 2026-06-18 S Sale
LIN KUAN-MING
Non-Executive Director
92,657 -18.3%
433.94
US$2,009,715 		92,657 -18.3% 433.94 US$2,009,715
2026-06-24 2026-06-17 S Sale
LIN KUAN-MING
Non-Executive Director
52,138 -9.8%
280.85
US$501,140 		52,138 -9.8% 280.85 US$501,140
2026-06-24 2026-06-17 S Sale
LIN KUAN-MING
Non-Executive Director
1,000 -9.5%
300.00
US$300,000 		1,000 -9.5% 300.00 US$300,000
2026-06-04 2026-06-05 PrS Proposed sale
LIN KUAN-MING

Affiliate
10,500
306.57
US$3,219,000 		10,500 306.57 US$3,219,000
2026-06-24 2026-06-02 S Sale
SHIEH HAN-PING
Non-Executive Director
1,000 -11.6%
301.25
US$301,250 		1,000 -11.6% 301.25 US$301,250
2026-05-27 2026-05-28 PrS Proposed sale
SHIEH HAN-PING

Affiliate
2,000
276.14
US$552,280 		2,000 276.14 US$552,280
2026-05-27 2026-05-27 PrS Proposed sale
Fan Robert C

Officer

Officer
500
272.45
US$136,225 		500 272.45 US$136,225
2026-05-18 2026-05-18 PrS Proposed sale
Fan Robert C

Officer

Officer
1,100
205.17
US$225,687 		1,100 205.17 US$225,687
2026-05-07 2026-05-06 S Sale
1.4
DUANN SHII TYNG
Non-Executive Director
1,500 -9.0%
245.00
US$367,500 		1,500 -9.0% 245.00 US$367,500
2026-05-01 2026-05-04 PrS Proposed sale
1.4
DUANN SHII TYNG

Affiliate
1,500
219.00
US$328,500 		1,500 219.00 US$328,500
2026-02-24 2026-02-24 PrS Proposed sale
Fan Robert

Officer

Officer
2,000
135.40
US$270,800 		2,000 135.40 US$270,800
2025-12-09 2025-12-09 PrS Proposed sale
Fan Robert

Officer

Officer
3,000
90.45
US$271,350 		3,000 90.45 US$271,350
2025-11-10 2025-11-11 PrS Proposed sale
1.4
DUANN SHII TYNG

Affiliate
1,000
95.00
US$95,000 		1,000 95.00 US$95,000
2025-09-16 2025-09-17 PrS Proposed sale
LIN KUAN-MING

Affiliate
12,500
90.00
US$1,125,000 		12,500 90.00 US$1,125,000
2025-09-09 2025-09-03 PrS Proposed sale
SHIEH HAN-PING

Affiliate
6,000
84.85
US$509,100 		6,000 84.85 US$509,100
2025-08-12 2025-08-12 PrS Proposed sale
SHIEH HAN-PING

Affiliate
6,000
76.38
US$458,280 		6,000 76.38 US$458,280
2025-06-25 2025-06-20 PrS Proposed sale
SHIEH HAN-PING

Affiliate
2,000
72.00
US$144,000 		2,000 72.00 US$144,000
2025-05-12 2025-05-13 PrS Proposed sale
1.4
DUANN SHII TYNG

Affiliate
4,000
53.54
US$214,160 		4,000 53.54 US$214,160
2024-12-18 2024-12-18 PrS Proposed sale
Fan Robert

Officer

Officer
1,000
60.32
US$60,320 		1,000 60.32 US$60,320
2024-12-03 2024-12-04 PrS Proposed sale
1.4
DUANN SHII TYNG

Affiliate
3,000
54.00
US$162,000 		3,000 54.00 US$162,000
2024-06-21 2024-06-21 PrS Proposed sale
YU-CHEN CHIEN

Director

Non-Executive Director
5,000
82.06
US$410,280 		5,000 82.06 US$410,280
2024-06-07 2024-05-22 PrS Proposed sale
Fan Robert

Officer

Officer
1,000
80.56
US$80,560 		1,000 80.56 US$80,560
2024-05-13 2024-05-13 PrS Proposed sale
YU-CHEN CHIEN

Director

Non-Executive Director
5,000
75.68
US$378,408 		5,000 75.68 US$378,408
2024-05-10 2024-05-10 PrS Proposed sale
YU-CHEN CHIEN

Director

Non-Executive Director
5,000
76.42
US$382,116 		5,000 76.42 US$382,116
2024-05-08 2024-05-09 PrS Proposed sale
1.4
DUANN SHII TYNG

Affiliate
3,000
78.58
US$235,740 		3,000 78.58 US$235,740
2024-03-04 2024-03-05 PrS Proposed sale
LIN KUAN-MING

Affiliate
15,300
72.42
US$1,108,026 		15,300 72.42 US$1,108,026
2024-02-20 2024-02-16 PrS Proposed sale
Chung Tsung-Ming

Affiliate
12,800
66.78
US$854,784 		12,800 66.78 US$854,784
2024-02-13 2024-02-13 PrS Proposed sale
Fan Robert

Officer

Officer
4,000
63.47
US$253,880 		4,000 63.47 US$253,880
2023-12-20 2023-12-19 PrS Proposed sale
Chung Tsung-Ming

Affiliate
15,000
60.02
US$900,300 		15,000 60.02 US$900,300
2023-09-15 2023-09-18 PrS Proposed sale
1.4
DUANN SHII TYNG

Affiliate
2,000
53.16
US$106,320 		2,000 53.16 US$106,320
2023-09-13 2023-09-14 PrS Proposed sale
YEH HUNG HSIANG

Affiliate
4,200
53.00
US$222,600 		4,200 53.00 US$222,600
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