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Richard Dallas White

DIOD
CORPORATE SECRETARY · DIODES INC /DEL/ · CIK 0001368889
FILING MIX · LIFETIME24%/76%
BUYS
12
SELLS
37
TOTAL VALUE
$11.06M
COMPANIES
1
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
8,071
AVG SELL PX
$59.88
TRADE KIND
SHOWING 49 / 49
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
18 backtested trades · 8 horizonsHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Richard Dallas White, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d18+77.78%-2.81%-1.66%-1.15%-1.27%—
14d18+55.56%-3.76%-1.76%-2.00%+0.17%—
30d18+72.22%-3.62%-3.27%-0.36%-3.36%—
60d18+55.56%+1.82%+2.13%-0.32%-4.98%—
90d18+55.56%+2.66%+5.43%-2.77%-10.32%—
180d18+11.11%+20.70%+13.38%+7.33%+3.12%—
1y18+5.56%+46.47%+28.46%+18.01%+9.45%—
2y18+11.11%+32.78%+28.10%+4.68%+8.13%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
DIOD · 8,071 shares · as of May 29, 2026
019,96039,92159,88179,841202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 12 buys / 37 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
2,000$107.01$214.0K8,071May 29, 2026Jun 1, 2026 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
1,000$104.48$104.5K10,071May 29, 2026Jun 1, 2026 ↗View →
DIOD
DIODES INC /DEL/
PURCHASEGRANT
Gift
34,304——34,304Mar 8, 2024Mar 13, 2024 ↗View →
DIOD
DIODES INC /DEL/
SALEGRANT
Gift
34,304——11,071Mar 8, 2024Mar 13, 2024 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
2,000$96.37$192.7K45,375May 30, 2023May 31, 2023 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$89.39$446.9K47,375Feb 15, 2022Feb 16, 2022 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
26,668$78.20$2.09M0Mar 2, 2021Mar 3, 2021 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
6,666——13,334Mar 1, 2021Mar 3, 2021 ↗View →
DIOD
DIODES INC /DEL/
PURCHASEGRANT
Stock grant
13,334——26,668Mar 1, 2021Mar 3, 2021 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
4,966$79.80$396.3K52,375Feb 23, 2021Feb 24, 2021 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$77.01$385.1K57,341Feb 17, 2021Feb 18, 2021 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
3,500$57.00$199.5K62,341Oct 1, 2020Oct 1, 2020 ↗View →
DIOD
DIODES INC /DEL/
PURCHASE
Corporate Secretary
3,500$19.27$67.4K65,841Oct 1, 2020Oct 1, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
3,500——0Oct 1, 2020Oct 1, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000——3,500Sep 30, 2020Sep 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
PURCHASE
Corporate Secretary
5,000$19.27$96.3K67,341Sep 30, 2020Sep 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$56.00$280.0K62,341Sep 30, 2020Sep 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$54.00$270.0K67,341Sep 29, 2020Sep 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$55.00$275.0K62,341Sep 29, 2020Sep 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
10,000——8,500Sep 29, 2020Sep 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
PURCHASE
Corporate Secretary
10,000$19.27$192.7K72,341Sep 29, 2020Sep 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$52.00$260.0K67,341Sep 28, 2020Sep 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
10,000——18,500Sep 28, 2020Sep 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$53.00$265.0K62,341Sep 28, 2020Sep 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
PURCHASE
Corporate Secretary
10,000$19.27$192.7K72,341Sep 28, 2020Sep 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000——28,500Sep 23, 2020Sep 24, 2020 ↗View →
DIOD
DIODES INC /DEL/
PURCHASE
Corporate Secretary
5,000$19.27$96.3K67,341Sep 23, 2020Sep 24, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$51.00$255.0K62,341Sep 23, 2020Sep 24, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$50.00$250.0K62,341Sep 16, 2020Sep 18, 2020 ↗View →
DIOD
DIODES INC /DEL/
PURCHASE
Corporate Secretary
5,000$19.27$96.3K67,341Sep 16, 2020Sep 18, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000——33,500Sep 16, 2020Sep 18, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
1,000$49.12$49.1K62,341Aug 31, 2020Sep 1, 2020 ↗View →
DIOD
DIODES INC /DEL/
PURCHASE
Corporate Secretary
5,000$27.92$139.6K68,341Jun 5, 2020Jun 9, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000——0Jun 5, 2020Jun 9, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$54.00$270.0K63,341Jun 5, 2020Jun 9, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
6,500$50.50$328.3K63,341May 27, 2020May 28, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$52.00$260.0K74,841Apr 29, 2020Apr 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
PURCHASE
Corporate Secretary
10,000$27.92$279.2K79,841Apr 29, 2020Apr 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$53.00$265.0K69,841Apr 29, 2020Apr 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
10,000——5,000Apr 29, 2020Apr 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$51.00$255.0K69,841Apr 28, 2020Apr 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
PURCHASE
Corporate Secretary
10,000$27.92$279.2K79,841Apr 28, 2020Apr 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
10,000——15,000Apr 28, 2020Apr 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$50.00$250.0K74,841Apr 28, 2020Apr 30, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
4,965$44.76$222.2K69,841Feb 24, 2020Feb 25, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
33,102$48.44$1.60M20,000Feb 20, 2020Feb 21, 2020 ↗View →
DIOD
DIODES INC /DEL/
PURCHASEGRANT
Stock grant
16,551——53,102Feb 19, 2020Feb 21, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
3,310——36,551Feb 19, 2020Feb 21, 2020 ↗View →
DIOD
DIODES INC /DEL/
SALE
Corporate Secretary
5,000$48.14$240.7K74,806Feb 18, 2020Feb 19, 2020 ↗View →
Other insiders · DIOD
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About this filer
CIK 0001368889
ROLE
Corporate Secretary
PRIMARY
DIOD
COMPANIES
1
ACTIVE SINCE
Feb 2020
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