United States Semiconductors & Semiconductor Equipment

Diodes Inc (DIOD)

Track

Over the past 90 days, Diodes Inc. insiders have executed 31 transactions, resulting in a net sell value of approximately $7.62 million. Key executives, including the CEO and CTO, have participated in these sales. This activity follows the company's May 2026 earnings report, which showed a 30.3% EPS beat, despite a 15% decline in stock price over the period.
Ticker: DIOD 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 Diodes Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Sale 29 May 2026
Value US$3,874,467.91 | Price 179.06 | Shares 73,074 (-23.3%)
Sale 29 May 2026
Value US$19,861.88 | Price 85.54 | Shares 31,295 (-34.1%)
Proposed sale 29 May 2026
Value US$329,670.00 | Price 109.89 | Shares 3,000
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-01 2026-05-29 S Sale
3.2
White Richard Dallas

Corporate Secretary

Officer
73,074 -23.3%
179.06
US$3,874,468 		73,074 -23.3% 179.06 US$3,874,468
2026-06-01 2026-05-29 S Sale
3.2
White Richard Dallas

Corporate Secretary

Officer
31,295 -34.1%
85.54
US$19,862 		31,295 -34.1% 85.54 US$19,862
2026-06-01 2026-05-29 S Sale
3.0
Tang Francis

Chief Technology Officer

Officer
70,935 -49.7%
220.39
US$3,174,556 		70,935 -49.7% 220.39 US$3,174,556
2026-05-29 2026-05-29 PrS Proposed sale
3.0
FRANCIS TANG

Officer

Officer
15,330
112.04
US$1,717,620 		15,330 112.04 US$1,717,620
2026-05-29 2026-05-29 PrS Proposed sale
3.2
White Richard Dallas

Officer

Officer
3,000
109.89
US$329,670 		3,000 109.89 US$329,670
2026-05-27 2026-05-27 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
3,000 -4.6%
110.08
US$330,240 		3,000 -4.6% 110.08 US$330,240
2026-05-27 2026-05-27 S Sale
3.0
Tang Francis

Chief Technology Officer

Officer
5,000 -5.4%
110.08
US$550,400 		5,000 -5.4% 110.08 US$550,400
2026-05-27 2026-05-27 S Sale
2.9
Yu Gary

President and CEO

Executive Director
3,632 -3.2%
110.08
US$399,811 		3,632 -3.2% 110.08 US$399,811
2026-05-27 2026-05-27 PrS Proposed sale
3.2
EMILY S YANG

Officer

Officer
3,000
110.08
US$330,240 		3,000 110.08 US$330,240
2026-05-27 2026-05-27 PrS Proposed sale
2.9
GARY YU

Officer; Director

Executive Director
3,632
110.08
US$399,811 		3,632 110.08 US$399,811
2026-05-27 2026-05-27 PrS Proposed sale
3.0
FRANCIS TANG

Officer

Officer
5,000
110.08
US$550,400 		5,000 110.08 US$550,400
2026-05-27 2026-05-26 S Sale
2.8
Zhao Jin

President, Diodes Asia

Officer
3,689 -7.8%
106.86
US$394,209 		3,689 -7.8% 106.86 US$394,209
2026-05-27 2026-05-26 S Sale
2.6
Tsong Andy

SVP Worldwide Products Group

Officer
1,582 -3.2%
106.96
US$169,203 		1,582 -3.2% 106.96 US$169,203
2026-05-27 2026-05-26 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
2,000 -3.0%
107.52
US$215,040 		2,000 -3.0% 107.52 US$215,040
2026-05-27 2026-05-26 S Sale
3.0
Tang Francis

Chief Technology Officer

Officer
4,137 -4.3%
108.00
US$446,796 		4,137 -4.3% 108.00 US$446,796
2026-05-26 2026-05-26 PrS Proposed sale
2.8
JIN ZHAO

Officer

Officer
3,689
106.86
US$394,209 		3,689 106.86 US$394,209
2026-05-26 2026-05-26 PrS Proposed sale
2.6
KUO-TING TSONG

Officer

Officer
1,582
106.96
US$169,203 		1,582 106.96 US$169,203
2026-05-26 2026-05-26 PrS Proposed sale
3.0
FRANCIS TANG

Officer

Officer
4,137
108.00
US$446,796 		4,137 108.00 US$446,796
2026-05-26 2026-05-26 PrS Proposed sale
3.2
EMILY S YANG

Officer

Officer
2,000
107.52
US$215,040 		2,000 107.52 US$215,040
2026-05-21 2026-05-20 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
2,000 -2.9%
96.81
US$193,620 		2,000 -2.9% 96.81 US$193,620
2026-05-20 2026-05-20 PrS Proposed sale
3.2
EMILY S YANG

Officer

Officer
2,000
96.81
US$193,620 		2,000 96.81 US$193,620
2026-05-19 2026-05-15 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
2,000 -2.8%
101.47
US$202,930 		2,000 -2.8% 101.47 US$202,930
2026-05-15 2026-05-15 PrS Proposed sale
3.2
EMILY S YANG

Officer

Officer
2,000
101.47
US$202,930 		2,000 101.47 US$202,930
2026-05-13 2026-05-13 S Sale
2.8
Whitmire Brett R

CFO

Officer
16,556 -27.1%
103.34
US$1,710,905 		16,556 -27.1% 103.34 US$1,710,905
2026-05-13 2026-05-13 PrS Proposed sale
2.8
BRETT R WHITMIRE

Officer

Officer
16,556
103.34
US$1,710,905 		16,556 103.34 US$1,710,905
2026-05-13 2026-05-12 S Sale
2.8
Zhao Jin

President, Diodes Asia

Officer
2,760 -5.5%
102.36
US$282,516 		2,760 -5.5% 102.36 US$282,516
2026-05-13 2026-05-12 S Sale
2.6
Tsong Andy

SVP Worldwide Products Group

Officer
2,652 -5.1%
110.00
US$291,720 		2,652 -5.1% 110.00 US$291,720
2026-05-13 2026-05-12 S Sale
3.0
Tang Francis

Chief Technology Officer

Officer
3,643 -3.7%
108.00
US$393,444 		3,643 -3.7% 108.00 US$393,444
2026-05-12 2026-05-12 PrS Proposed sale
3.0
FRANCIS TANG

Officer

Officer
3,643
108.00
US$393,444 		3,643 108.00 US$393,444
2026-05-12 2026-05-12 PrS Proposed sale
2.8
JIN ZHAO

Officer

Officer
2,760
102.36
US$282,516 		2,760 102.36 US$282,516
2026-05-12 2026-05-12 PrS Proposed sale
2.6
KUO-TING TSONG

Officer

Officer
2,652
110.00
US$291,720 		2,652 110.00 US$291,720
2026-02-26 2026-02-24 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
2,154 -2.9%
69.89
US$150,551 		2,154 -2.9% 69.89 US$150,551
2026-02-26 2026-02-24 S Sale
2.9
Yu Gary

President and CEO

Executive Director
2,000 -1.8%
70.00
US$140,000 		2,000 -1.8% 70.00 US$140,000
2026-02-24 2026-02-24 PrS Proposed sale
3.2
EMILY S YANG

Officer

Officer
2,154
69.89
US$150,551 		2,154 69.89 US$150,551
2026-02-24 2026-02-24 PrS Proposed sale
2.9
GARY YU

Officer; Director

Executive Director
2,000
70.00
US$140,000 		2,000 70.00 US$140,000
2026-02-24 2026-02-20 S Sale
2.8
LU KEH SHEW
Non-Executive Director
64,266 -26.3%
67.74
US$4,353,257 		64,266 -26.3% 67.74 US$4,353,257
2026-02-24 2026-02-20 S Sale
2.8
LU KEH SHEW
Non-Executive Director
46,734 -17.2%
67.78
US$3,167,845 		46,734 -17.2% 67.78 US$3,167,845
2026-02-20 2026-02-20 PrS Proposed sale
2.8
TEXASTAC INVESTMENTS L.P.

Director

Non-Executive Director
64,266
67.24
US$4,321,246 		64,266 67.24 US$4,321,246
2026-02-20 2026-02-20 PrS Proposed sale
2.8
LU GRANCHILDRENS TRUST U/A DTD 08/26/2012

Director

Non-Executive Director
46,734
67.24
US$3,142,394 		46,734 67.24 US$3,142,394
2026-02-17 2026-02-13 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
1,000 -1.4%
71.89
US$71,891 		1,000 -1.4% 71.89 US$71,891
2026-02-17 2026-02-13 S Sale
2.8
Whitmire Brett R

CFO

Officer
5,953 -8.9%
71.22
US$423,979 		5,953 -8.9% 71.22 US$423,979
2026-02-17 2026-02-13 S Sale
2.6
Tsong Andy

SVP Worldwide Products Group

Officer
3,277 -5.9%
70.46
US$230,892 		3,277 -5.9% 70.46 US$230,892
2026-02-13 2026-02-13 PrS Proposed sale
2.8
BRETT R WHITMIRE

Officer

Officer
5,953
71.22
US$423,979 		5,953 71.22 US$423,979
2026-02-13 2026-02-13 PrS Proposed sale
2.6
KUO-TING TSONG

Officer

Officer
3,277
70.46
US$230,892 		3,277 70.46 US$230,892
2026-02-13 2026-02-13 PrS Proposed sale
3.2
EMILY S YANG

Officer

Officer
1,000
71.89
US$71,891 		1,000 71.89 US$71,891
2026-02-04 2026-02-03 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
950 -1.3%
60.85
US$57,808 		950 -1.3% 60.85 US$57,808
2026-02-04 2026-02-03 S Sale
2.8
Whitmire Brett R

CFO

Officer
830 -1.2%
60.85
US$50,506 		830 -1.2% 60.85 US$50,506
2026-02-04 2026-02-03 S Sale
2.9
Yu Gary

President and CEO

Executive Director
2,900 -2.5%
60.85
US$176,465 		2,900 -2.5% 60.85 US$176,465
2026-02-04 2026-02-03 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
950 -1.3%
60.85
US$57,808 		950 -1.3% 60.85 US$57,808
2026-02-04 2026-02-03 S Sale
2.8
Whitmire Brett R

CFO

Officer
830 -1.2%
60.85
US$50,506 		830 -1.2% 60.85 US$50,506
2026-02-04 2026-02-03 S Sale
2.9
Yu Gary

President and CEO

Executive Director
2,900 -2.5%
60.85
US$176,465 		2,900 -2.5% 60.85 US$176,465
2026-02-04 2026-02-02 S Sale
2.8
Zhao Jin

President, Diodes Asia

Officer
525 -1.0%
59.19
US$31,075 		525 -1.0% 59.19 US$31,075
2026-02-04 2026-02-02 S Sale
2.8
Zhao Jin

President, Diodes Asia

Officer
525 -1.0%
59.19
US$31,075 		525 -1.0% 59.19 US$31,075
2025-11-13 2025-11-12 S Sale
2.8
LU KEH SHEW
Non-Executive Director
2,095 -0.8%
47.46
US$99,419 		2,095 -0.8% 47.46 US$99,419
2025-11-13 2025-11-12 S Sale
2.8
LU KEH SHEW
Non-Executive Director
3,905 -1.4%
47.40
US$185,086 		3,905 -1.4% 47.40 US$185,086
2025-11-12 2025-11-12 PrS Proposed sale
2.8
LU GRANCHILDRENS TRUST

Director

Non-Executive Director
3,905
47.40
US$185,086 		3,905 47.40 US$185,086
2025-11-12 2025-11-12 PrS Proposed sale
2.8
TEXASTAC INVESTMENTS L.P.

Director

Non-Executive Director
2,095
47.46
US$99,419 		2,095 47.46 US$99,419
2025-08-28 2025-08-28 PrS Proposed sale
3.2
EMILY S YANG

Officer

Officer
1,000
56.36
US$56,360 		1,000 56.36 US$56,360
2025-08-28 2025-08-28 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
1,000 -1.7%
56.36
US$56,360 		1,000 -1.7% 56.36 US$56,360
2025-08-28 2025-08-27 S Sale
2.8
Whitmire Brett R

CFO

Officer
2,000 -3.9%
55.90
US$111,790 		2,000 -3.9% 55.90 US$111,790
2025-08-27 2025-08-27 PrS Proposed sale
2.8
BRETT R WHITMIRE

Officer

Officer
2,000
55.90
US$111,790 		2,000 55.90 US$111,790
2025-08-21 2025-08-19 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
1,000 -1.6%
53.22
US$53,217 		1,000 -1.6% 53.22 US$53,217
2025-08-19 2025-08-19 PrS Proposed sale
3.2
EMILY S YANG

Officer

Officer
1,000
53.22
US$53,217 		1,000 53.22 US$53,217
2025-02-05 2025-02-04 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
950 -1.4%
56.04
US$53,238 		950 -1.4% 56.04 US$53,238
2025-02-05 2025-02-04 S Sale
2.8
Whitmire Brett R

CFO

Officer
830 -1.6%
56.04
US$46,513 		830 -1.6% 56.04 US$46,513
2025-02-05 2025-02-04 S Sale
2.9
Yu Gary

President

Executive Director
2,900 -3.5%
56.04
US$162,516 		2,900 -3.5% 56.04 US$162,516
2024-09-03 2024-08-30 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
1,000 -1.6%
70.48
US$70,484 		1,000 -1.6% 70.48 US$70,484
2024-08-30 2024-08-30 PrS Proposed sale
3.2
Yang Emily

Officer

Officer
1,000
70.48
US$70,484 		1,000 70.48 US$70,484
2024-09-03 2024-08-29 S Sale
2.8
Whitmire Brett R

CFO

Officer
1,900 -3.9%
69.99
US$132,974 		1,900 -3.9% 69.99 US$132,974
2024-08-29 2024-08-29 PrS Proposed sale
2.8
Whitmire Brett R

Officer

Officer
1,900
66.98
US$127,262 		1,900 66.98 US$127,262
2024-08-27 2024-08-26 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
18 -0.1%
72.17
US$1,299 		18 -0.1% 72.17 US$1,299
2024-08-27 2024-08-26 S Sale
3.2
Yang Emily

SVP Worldwide Sales/Marketing

Officer
1,254 -4.1%
72.16
US$90,489 		1,254 -4.1% 72.16 US$90,489
2024-08-26 2024-08-26 PrS Proposed sale
3.2
Yang Emily

Officer

Officer
1,272
72.16
US$91,788 		1,272 72.16 US$91,788
2024-08-21 2024-08-19 S Sale
2.8
LU KEH SHEW

CEO

Executive Director
10,000 -3.9%
67.31
US$673,094 		10,000 -3.9% 67.31 US$673,094
2024-08-21 2024-08-19 S Sale
2.8
LU KEH SHEW

CEO

Executive Director
10,010 -3.5%
67.20
US$672,622 		10,010 -3.5% 67.20 US$672,622
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