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Amtech Systems Inc (ASYS)

CUSIP: 032332504 | NYSE | Technology · Semiconductor Equipment & Materials | Micro Cap | 302 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
CompareDetailedHistoricalFundsOptions13D/13GPeersTargetingTrading SummaryProfile

Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13GAigh Capital Management LLC1,252,0007.2%New 5%+ stakeJun 30, 2026No 13F filer matched
13D/ARobert Averick
with Cornice Fiduciary Management LLC, as Trustee under Trust Agreement dated December 23, 1989 FBO the issue of Jonathan D. Sackler, Piton Capital Partners LLC, M3c Holdings LLC, +1 more
2,986,34120.6%New 5%+ stakeJun 1, 2026No 13F filer matched
13GAigh Capital Management LLC1,252,000
7.2% of class · Jun 30, 2026New 5%+ stake
No 13F filer matched
13D/ARobert Averick2,986,341
20.6% of class · Jun 1, 2026New 5%+ stake
with Cornice Fiduciary Management LLC, as Trustee under Trust Agreement dated December 23, 1989 FBO the issue of Jonathan D. Sackler, Piton Capital Partners LLC, M3c Holdings LLC, +1 more
No 13F filer matched

Institutional Holders — Q3 2026

Aigh Capital Management LLC1,252,000
2.1% of portfolio›$21.0M
Wasatch Advisors LP1,184,904
0.1% of portfolio›$19.9M
Dimensional Fund Advisors LP346,112
0.0% of portfolio›$5.8M
Palisades Investment Partners, LLC149,594
0.7% of portfolio›$2.5M
Y-Intercept (Hong Kong) Ltd88,976
0.0% of portfolio›$1.5M
KTF Investments, LLC40,000
0.1% of portfolio›$671.2K
Essex Investment Management Co LLC37,761
0.1% of portfolio›$633.6K
Bokf, NA25,518
0.0% of portfolio›$428.2K
Sowell Financial Services LLC20,206
0.0% of portfolio›$339.1K
Villere ST Denis J & Co LLC20,000
0.0% of portfolio›$335.6K
James Investment Research, Inc.14,600
0.0% of portfolio›$245.0K
Strs Ohio6,300
0.0% of portfolio›$105.7K
Citigroup Inc1,803
0.0% of portfolio›$30.3K
State of Wyoming1,505
0.0% of portfolio›$25.3K
Exchange Traded Concepts, LLC1,350
0.0% of portfolio›$22.7K
Sterling Capital Management LLC515
0.0% of portfolio›$8.6K
Farther Finance Advisors, LLC507
0.0% of portfolio›$8.5K
Strengthening Families & Communities, LLC490
0.0% of portfolio›$8.2K
Gamma Investing LLC410
0.0% of portfolio›$6.9K
SBI Securities Co., Ltd.387
0.0% of portfolio›$6.5K
SJS Investment Consulting Inc.382
0.0% of portfolio›$6.4K
First United Bank & Trust220
0.0% of portfolio›$3.7K
Parallel Advisors, LLC200
0.0% of portfolio›$3.4K
Root Financial Partners, LLC45
0.0% of portfolio›$755
Parkside Financial Bank & Trust33
0.0% of portfolio›$554
EverSource Wealth Advisors, LLC22
0.0% of portfolio›$369
Covestor Ltd4
0.0% of portfolio›$0
StyleTurnoverLocationFiled
Aigh Capital Management LLC
1,252,000$21.0M2.1%GARPVery HighBaltimore, MD2026-11-02
Wasatch Advisors LP
1,184,904$19.9M0.1%GARPMediumSalt Lake City, UT2026-10-13
Dimensional Fund Advisors LP
346,112$5.8M0.0%IndexLowAustin, TX2026-11-04
Palisades Investment Partners, LLC
149,594$2.5M0.7%GARPMediumSanta Monica, CA2026-11-03
Y-Intercept (Hong Kong) Ltd
88,976$1.5M0.0%ValueVery HighHong Kong, South Korea2026-10-16
KTF Investments, LLC
40,000$671.2K0.1%GrowthLowSeal Beach, CA2026-10-23
Essex Investment Management Co LLC
37,761$633.6K0.1%GrowthMediumBoston, MA2026-10-19
Bokf, NA
25,518$428.2K0.0%CoreLowTulsa, OK2026-10-27
Sowell Financial Services LLC
20,206$339.1K0.0%CoreLowNorth Little Rock, AR2026-10-23
Villere ST Denis J & Co LLC
20,000$335.6K0.0%ValueVery LowNew Orleans, LA2026-11-04
James Investment Research, Inc.
14,600$245.0K0.0%CoreLowAlpha, OH2026-10-22
Strs Ohio
6,300$105.7K0.0%CoreMediumColumbus, OH2026-10-30
Citigroup Inc
1,803$30.3K0.0%CoreMediumNew York, NY2026-11-04
State of Wyoming
1,505$25.3K0.0%ValueHighCheyenne, WY2026-10-28
Exchange Traded Concepts, LLC
1,350$22.7K0.0%GrowthMediumOklahoma City, OK2026-10-28
Sterling Capital Management LLC
515$8.6K0.0%GARPMediumCharlotte, NC2026-10-22
Farther Finance Advisors, LLC
507$8.5K0.0%IndexLowSan Francisco, CA2026-10-08
Strengthening Families & Communities, LLC
490$8.2K0.0%CoreMediumBoston, MA2026-10-21
Gamma Investing LLC
410$6.9K0.0%IndexVery LowFoster City, CA2026-10-08
SBI Securities Co., Ltd.
387$6.5K0.0%Agg GrowthLowTokyo, Mexico2026-10-22
SJS Investment Consulting Inc.
382$6.4K0.0%ETFVery LowSylvania, OH2026-10-26
First United Bank & Trust
220$3.7K0.0%CoreLowOakland, MD2026-10-22
Parallel Advisors, LLC
200$3.4K0.0%IndexLowSan Francisco, CA2026-11-03
Root Financial Partners, LLC
45$7550.0%ETFMediumEncinitas, CA2026-10-21
Parkside Financial Bank & Trust
33$5540.0%CoreVery LowSaint Louis, MO2026-10-27
EverSource Wealth Advisors, LLC
22$3690.0%CoreMediumBirmingham, AL2026-11-04
Covestor Ltd
4$00.0%ValueHighLondon, United Kingdom2026-10-30