Michael Kuo-Chih Tsai

Insider

First SEC filing: May 26, 2010 · Latest: May 26, 2010

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 13 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

13 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 26, 2022	DIOD	A	2,520	—	—	50,265 Direct	+5.28%	Acquired	(price as of 2026-08-20)
May 24, 2021	DIOD	A	2,520	—	—	47,745 Direct	+5.57%	Acquired	(price as of 2026-08-20)
May 18, 2020	DIOD	A	3,600	—	—	45,225 Direct	+8.65%	Acquired	(price as of 2026-08-20)
May 17, 2019	DIOD	A	4,000	—	—	41,625 Direct	+10.63%	Acquired	(price as of 2026-08-20)
Aug. 21, 2018	DIOD	S	2,575	$37.13	$95,610	37,625 Direct	-6.41%	Disposed	149.7% (price as of 2026-08-20)
May 21, 2018	DIOD	A	4,300	—	—	40,200 Direct	+11.98%	Acquired	(price as of 2026-08-20)
May 16, 2017	DIOD	A	4,300	—	—	35,900 Direct	+13.61%	Acquired	(price as of 2026-08-20)
May 26, 2016	DIOD	A	4,300	—	—	31,600 Direct	+15.75%	Acquired	(price as of 2026-08-20)
May 26, 2015	DIOD	A	4,300	—	—	27,300 Direct	+18.70%	Acquired	(price as of 2026-08-20)
May 27, 2014	DIOD	A	4,300	—	—	23,000 Direct	+22.99%	Acquired	(price as of 2026-08-20)
June 6, 2013	DIOD	A	4,300	—	—	18,700 Direct	+29.86%	Acquired	(price as of 2026-08-20)
May 21, 2012	DIOD	A	4,300	—	—	14,400 Direct	+42.57%	Acquired	(price as of 2026-08-20)
May 26, 2011	DIOD	A	4,300	—	—	10,100 Direct	+74.14%	Acquired	(price as of 2026-08-20)
May 24, 2010	DIOD	A	5,800	—	—	5,800 Direct	—	Acquired	(price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
May 26, 2010	DIOD	Diodes Inc. Common Stock	0	Direct