Chris Siu

Insider

First SEC filing: June 1, 2026 · Latest: June 1, 2026

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 34 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

34 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 13, 2026	AEHR	F	988	$72.60	$71,729	77,824 Direct	-1.25%	Disposed	45.9% (price as of 2026-08-20)
July 2, 2026	AEHR	F	1,139	$69.96	$79,684	78,812 Direct	-1.42%	Disposed	51.4% (price as of 2026-08-20)
July 1, 2026	AEHR	F	2,213	$84.42	$186,821	79,951 Direct	-2.69%	Disposed	25.5% (price as of 2026-08-20)
July 1, 2026	AEHR	A	6,079	—	—	82,164 Direct	+7.99%	Acquired	(price as of 2026-08-20)
July 1, 2026	AEHR	A	6,165	—	—	76,085 Direct	+8.82%	Acquired	(price as of 2026-08-20)
June 1, 2026	AEHR	F	350	$93.62	$32,767	69,920 Direct	-0.50%	Disposed	13.1% (price as of 2026-08-20)
April 11, 2026	AEHR	F	697	$70.43	$49,090	70,740 Direct	-0.98%	Disposed	50.4% (price as of 2026-08-20)
April 2, 2026	AEHR	F	821	$44.32	$36,387	71,437 Direct	-1.14%	Disposed	139.0% (price as of 2026-08-20)
April 1, 2026	AEHR	J	2,095	$6.67	$13,974	7,306 Indirect	+40.20%	Acquired	1488.2% (price as of 2026-08-20)
March 1, 2026	AEHR	F	368	$37.43	$13,774	72,258 Direct	-0.51%	Disposed	183.0% (price as of 2026-08-20)
Jan. 11, 2026	AEHR	F	799	$26.32	$21,030	72,626 Direct	-1.09%	Disposed	302.5% (price as of 2026-08-20)
Jan. 2, 2026	AEHR	F	940	$22.16	$20,830	73,425 Direct	-1.26%	Disposed	378.0% (price as of 2026-08-20)
Dec. 1, 2025	AEHR	F	349	$22.53	$7,863	74,365 Direct	-0.47%	Disposed	370.2% (price as of 2026-08-20)
Oct. 13, 2025	AEHR	F	695	$23.49	$16,326	74,714 Direct	-0.92%	Disposed	351.0% (price as of 2026-08-20)
Oct. 2, 2025	AEHR	F	126	$32.25	$4,064	75,409 Direct	-0.17%	Disposed	228.5% (price as of 2026-08-20)
Oct. 2, 2025	AEHR	F	694	$32.25	$22,382	75,535 Direct	-0.91%	Disposed	228.5% (price as of 2026-08-20)
Oct. 1, 2025	AEHR	J	1,009	$6.67	$6,730	5,211 Indirect	+24.01%	Acquired	1488.2% (price as of 2026-08-20)
May 31, 2022	UCTT	F	3,986	$33.56	$133,770	40,106 Direct	-9.04%	Disposed	119.2% (price as of 2026-08-20)
May 6, 2022	UCTT	A	439	$27.34	$12,002	44,092 Direct	+1.01%	Acquired	169.1% (price as of 2026-08-20)
April 30, 2022	UCTT	F	502	$31.17	$15,647	43,653 Direct	-1.14%	Disposed	136.1% (price as of 2026-08-20)
April 30, 2022	UCTT	F	200	$31.17	$6,234	44,155 Direct	-0.45%	Disposed	136.1% (price as of 2026-08-20)
April 29, 2022	UCTT	A	6,235	—	—	44,355 Direct	+16.36%	Acquired	(price as of 2026-08-20)
April 24, 2022	UCTT	F	1,698	$33.56	$56,985	38,120 Direct	-4.26%	Disposed	119.2% (price as of 2026-08-20)
April 24, 2022	UCTT	F	566	$33.56	$18,995	39,818 Direct	-1.40%	Disposed	119.2% (price as of 2026-08-20)
May 31, 2021	UCTT	F	4,480	$56.33	$252,358	41,884 Direct	-9.66%	Disposed	30.6% (price as of 2026-08-20)
April 30, 2021	UCTT	A	1,163	—	—	46,364 Direct	+2.57%	Acquired	(price as of 2026-08-20)
April 30, 2021	UCTT	A	4,364	—	—	45,201 Direct	+10.69%	Acquired	(price as of 2026-08-20)
April 24, 2021	UCTT	F	1,698	$54.11	$91,879	40,837 Direct	-3.99%	Disposed	36.0% (price as of 2026-08-20)
April 24, 2021	UCTT	F	566	$54.11	$30,626	42,535 Direct	-1.31%	Disposed	36.0% (price as of 2026-08-20)
Feb. 10, 2021	UCTT	A	4,911	—	—	43,101 Direct	+12.86%	Acquired	(price as of 2026-08-20)
Aug. 4, 2020	UCTT	G	2,200	—	—	38,190 Direct	-5.45%	Disposed	(price as of 2026-08-20)
Aug. 4, 2020	UCTT	S	3,413	$30.00	$102,390	40,390 Direct	-7.79%	Disposed	145.3% (price as of 2026-08-20)
Aug. 3, 2020	UCTT	S	2,000	$30.66	$61,320	43,803 Direct	-4.37%	Disposed	140.0% (price as of 2026-08-20)
May 31, 2020	UCTT	F	4,114	$20.73	$85,283	45,803 Direct	-8.24%	Disposed	254.9% (price as of 2026-08-20)
April 24, 2020	UCTT	A	14,734	—	—	49,917 Direct	+41.88%	Acquired	(price as of 2026-08-20)
May 31, 2019	UCTT	A	35,183	—	—	35,183 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.

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
July 13, 2023	AEHR	Common Stock	—	Direct
June 7, 2023	AEHR	Common Stock	—	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

AEHR

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2024	$336,000	—	$804,138	—	$73,000	—	$47,924	$1,261,062

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.