IRONWOOD INVESTMENT MANAGEMENT LLC

Position in ASYS — Amtech Systems Inc

CIK 1127761 BOSTON, MA

Position in ASYS

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$317,672

-$27,917 QoQ

Shares Held

27,198

-1.2% QoQ

Ownership

0.188%

of shares outstanding

% of Portfolio

0.17%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Mar 31, 2026

IRONWOOD INVESTMENT MANAGEMENT LLC holds $4,090,107 across 3 Semiconductor Equipment & Materials names. ASYS ranks #3 (7.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ASML	Asml Holding NV	1,973	$2,605,997
2	ONTO	Onto Innovation Inc.	5,688	$1,166,438
3	ASYS	Amtech Systems Inc This page	27,198	$317,672

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$317,672	27,198	-1.2%	Shares	Sole	2026-05-15
2025-12-31	$345,589	27,537	-0.2%	Shares	Sole	2026-02-12
2025-09-30	$255,492	27,591	-0.7%	Shares	Sole	2025-11-13
2025-06-30	$123,423	27,798	+5.7%	Shares	Sole	2025-08-13
2025-03-31	$126,985	26,291	-6.1%	Shares	Sole	2025-05-15
2024-12-31	$152,534	27,988	-2.2%	Shares	Sole	2025-02-10
2024-09-30	$165,903	28,604	+0.9%	Shares	Sole	2024-11-14
2024-06-30	$166,089	28,343	+0.4%	Shares	Sole	2024-08-16
2024-03-31	$152,702	28,226	+0.8%	Shares	Sole	2024-05-15
2023-12-31	$117,562	27,991	-2.0%	Shares	Sole	2024-02-14
2023-09-30	$217,551	28,550	-3.3%	Shares	Sole	2023-11-16
2023-06-30	$282,125	29,511	-3.0%	Shares	Sole	2023-08-11
2023-03-31	$290,187	30,418	+5.3%	Shares	Sole	2023-05-15
2022-12-31	$219,541	28,887	-8.0%	Shares	Sole	2023-01-31
2022-09-30	$266,755	31,383	+0.3%	Shares	Sole	2022-11-14
2022-06-30	$228,460	31,296	+0.1%	Shares	Sole	2022-08-12
2022-03-31	$314,656	31,278	+1.8%	Shares	Sole	2022-05-10
2021-12-31	$303,543	30,723	+1.9%	Shares	Sole	2022-02-10
2021-09-30	$344,671	30,155	+0.1%	Shares	Sole	2021-11-12
2021-06-30	$290,424	30,127	-2.3%	Shares	Sole	2021-08-16
2021-03-31	$364,635	30,849	+0.8%	Shares	Sole	2021-05-14
2020-12-31	$195,259	30,605	-2.8%	Shares	Sole	2021-02-12
2020-09-30	$153,912	31,475	-0.2%	Shares	Sole	2020-11-13
2020-06-30	$153,585	31,537	-0.5%	Shares	Sole	2020-08-17
2020-03-31	$137,934	31,709	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.