Richard Dallas White insider trades: Diodes (DIOD) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Richard reports to the SEC
Open-market buys and sales
41 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 29, 2026 | DIOD | ↓ Sell | 3,000 | $106.17 | $319K | Direct | Jun 1, 2026 (3d) |
| May 30, 2023 | DIOD | ↓ Sell | 2,000 | $96.37 | $193K | Direct | May 31, 2023 (1d) |
| Feb 15, 2022 | DIOD | ↓ Sell | 5,000 | $89.39 | $447K | Direct | Feb 16, 2022 (1d) |
| Mar 2, 2021 | DIOD | ↓ Sell | 26,668 | $78.20 | $2.1M | Direct | Mar 3, 2021 (1d) |
| Feb 23, 2021 | DIOD | ↓ Sell | 4,966 | $79.80 | $396K | Direct | Feb 24, 2021 (1d) |
| Feb 17, 2021 | DIOD | ↓ Sell | 5,000 | $77.01 | $385K | Direct | Feb 18, 2021 (1d) |
| Oct 1, 2020 | DIOD | ↓ Sell | 3,500 | $57.00 | $200K | Direct | Oct 1, 2020 (0d) |
| Sep 30, 2020 | DIOD | ↓ Sell | 25,000 | $54.00 | $1.4M | Direct | Sep 30, 2020 (0d) |
| Sep 23, 2020 | DIOD | ↓ Sell | 5,000 | $51.00 | $255K | Direct | Sep 24, 2020 (1d) |
| Sep 16, 2020 | DIOD | ↓ Sell | 5,000 | $50.00 | $250K | Direct | Sep 18, 2020 (2d) |
| Aug 31, 2020 | DIOD | ↓ Sell | 1,000 | $49.12 | $49K | Direct | Sep 1, 2020 (1d) |
| Jun 5, 2020 | DIOD | ↓ Sell | 5,000 | $54.00 | $270K | Direct | Jun 9, 2020 (4d) |
| May 27, 2020 | DIOD | ↓ Sell | 6,500 | $50.50 | $328K | Direct | May 28, 2020 (1d) |
| Apr 29, 2020 | DIOD | ↓ Sell | 20,000 | $51.50 | $1.0M | Direct | Apr 30, 2020 (1d) |
| Feb 24, 2020 | DIOD | ↓ Sell | 4,965 | $44.76 | $222K | Direct | Feb 25, 2020 (1d) |
| Feb 20, 2020 | DIOD | ↓ Sell | 33,102 | $48.44 | $1.6M | Direct | Feb 21, 2020 (1d) |
| Feb 18, 2020 | DIOD | ↓ Sell | 5,000 | $48.14 | $241K | Direct | Feb 19, 2020 (1d) |
| Dec 12, 2019 | DIOD | ↓ Sell | 72,500 | $48.56 | $3.5M | Direct | Dec 13, 2019 (1d) |
| Nov 26, 2019 | DIOD | ↓ Sell | 30,000 | $46.32 | $1.4M | Direct | Nov 26, 2019 (0d) |
| May 29, 2019 | DIOD | ↓ Sell | 13,000 | $31.73 | $412K | Direct | May 30, 2019 (1d) |
| Feb 22, 2019 | DIOD | ↓ Sell | 4,965 | $40.89 | $203K | Direct | Feb 25, 2019 (3d) |
| Feb 15, 2019 | DIOD | ↓ Sell | 31,149 | $41.19 | $1.3M | Direct | Feb 19, 2019 (4d) |
| Aug 30, 2018 | DIOD | ↓ Sell | 13,000 | $37.88 | $492K | Direct | Aug 31, 2018 (1d) |
| May 30, 2018 | DIOD | ↓ Sell | 15,750 | $34.20 | $539K | Direct | May 31, 2018 (1d) |
| Oct 2, 2017 | DIOD | ↓ Sell | 14,752 | $30.01 | $443K | Direct | Oct 4, 2017 (2d) |
| Jul 5, 2017 | DIOD | ↓ Sell | 2,750 | $23.81 | $65K | Direct | Jul 6, 2017 (1d) |
| May 30, 2017 | DIOD | ↓ Sell | 15,750 | $25.89 | $408K | Direct | May 31, 2017 (1d) |
| May 25, 2017 | DIOD | ↓ Sell | 4,940 | $25.91 | $128K | Direct | May 25, 2017 (0d) |
| May 10, 2017 | DIOD | ↓ Sell | 9,855 | $26.25 | $259K | Direct | May 12, 2017 (2d) |
| Jul 5, 2016 | DIOD | ↓ Sell | 2,750 | $16.92 | $47K | Direct | Jul 7, 2016 (2d) |
| May 27, 2016 | DIOD | ↓ Sell | 12,000 | $17.95 | $215K | Direct | May 31, 2016 (4d) |
| Jul 2, 2015 | DIOD | ↓ Sell | 2,750 | $23.02 | $63K | Direct | Jul 6, 2015 (4d) |
| May 27, 2015 | DIOD | ↓ Sell | 7,500 | $25.22 | $189K | Direct | May 28, 2015 (1d) |
| Mar 20, 2015 | DIOD | ↓ Sell | 14,729 | $30.00 | $442K | Direct | Mar 24, 2015 (4d) |
| Jul 2, 2014 | DIOD | ↓ Sell | 769 | $28.83 | $22K | Direct | Jul 7, 2014 (5d) |
| May 28, 2014 | DIOD | ↓ Sell | 1,858 | $27.52 | $51K | Direct | May 29, 2014 (1d) |
| May 29, 2013 | DIOD | ↓ Sell | 2,504 | $23.41 | $59K | Direct | May 30, 2013 (1d) |
| May 30, 2012 | DIOD | ↓ Sell | 1,955 | $19.65 | $38K | Direct | May 31, 2012 (1d) |
| Jun 2, 2011 | DIOD | ↓ Sell | 1,132 | $28.60 | $32K | Direct | Jun 6, 2011 (4d) |
| May 25, 2011 | DIOD | ↓ Sell | 511 | $28.59 | $15K | Direct | May 27, 2011 (2d) |
| Nov 18, 2008 | DIOD | ↑ Buy | 4,000 | $4.86 | $19K | Direct | Nov 19, 2008 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other DIOD insiders
Open-market trades in the last 12 months
About Richard Dallas White's insider trades
Richard Dallas White is Corporate Secretary at Diodes (DIOD). Since Nov 18, 2008, Richard has reported 1 open-market purchase worth $19K and 40 sales worth $19.9M on SEC Form 4. In the last 12 months: 1 sale ($319K).
Their filings also include grants and awards (15 filings), option exercises (14 filings), shares returned to the company (2 filings), shares withheld for taxes (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every DIOD insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.