Amtech Systems Inc (ASYS)

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Sector: Special Industry Machinery, Nec

Hedge Fund Popularity

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Hedge Fund Holdings

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Last updated on November 14, 2025, 4:41pm based on SEC 13F filings Last update: November 14, 2025, 4:41pm

No.	Hedge Fund	Shares	Value	Activity	% Port
1.	First Eagle Investment Management Jean-Marie Eveillard	752,346	$6,966,724	-7%	0.01%
2.	Arrowstreet Capital Peter Rathjens, Bruce Clarke And John Campbell	182,429	$1,689,293		0%
3.	Marshall Wace LLP Paul Marshall And Ian Wace	105,272	$974,820		0%
4.	Citadel Investment Group Ken Griffin	78,454	$726,484	+108%	0%
5.	Ancora Advisors Frederick Disanto	35,247	$326,387	-69%	0.01%

Insider Trading: Purchases See All

Insider	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
Averick Large Shareholder, Director	$3.54	21,377	$75,674.58	675,260	2025-05-16	Filing
Averick Large Shareholder, Director	$3.46	46,272	$160,101.12	653,883	2025-05-14	Filing
Daigle	$3.48	355	$1,235.40	156,890	2025-05-16	Filing
Daigle	$3.49	2,498	$8,718.02	156,535	2025-05-15	Filing
Daigle	$3.48	5,000	$17,400.00	154,037	2025-05-14	Filing

Insider Trading: Sales See All

Insider	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
Whang Director	$13.07	50,000	$653,500.00	70,681	2022-08-23	Filing
Whang Officer, Director	$12.78	8,750	$111,825.00	19,496	2022-08-24	Filing
Whang Officer, Director	$12.41	15,004	$186,199.64	28,246	2022-08-24	Filing
Whang Officer, Director	$10.24	36,667	$375,580.08	70,681	2021-09-08	Filing
King Director	$6.75	6,200	$41,850.00	2,000	2020-12-03	Filing

Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Dimensional Fund Advisors Lp	849,815	$7,869,244	0%
2.	Vanguard Group Inc	676,006	$6,259,815	0%
3.	Pacific Ridge Capital Partners, Llc	646,489	$5,986,488	1.32%
4.	Jane Street Group, Llc	175,422	$1,624,408	0%
5.	Blackrock, Inc.	132,873	$1,230,404	0%