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Amtech Systems Inc

ASYS
Exchange
Nasdaq
Industry
Special Industry Machinery, NEC
SEC CIK
0000720500

In the last 90 days, Amtech Systems Inc insiders filed 2 open-market purchases and 0 sales; 112 institutions reported holding it in 13F filings for Q2 2026, worth $241.5M in total; no superinvestor holds it.

Q3 2025 vs. Q2 2025

How the institutions holding Amtech Systems Inc changed between Q2 2025 and Q3 2025.

All holders in Q3 2025All holders in Q2 2025

13F holders of ASYS: Q2 2025 compared with Q3 2025
MeasureQ2 2025Q3 2025Change
Holders3654+18
Shares4.10M4.55M+449.8K (+11.0%)
Value$18.2M$42.1M+$23.9M (+131.4%)

New holders (24)

Institutions that held Amtech Systems Inc at the end of Q3 2025 but not at the end of Q2 2025.

Institutions new to ASYS in Q3 2025
InstitutionSharesValue% of portfolio
Arrowstreet Capital, Limited Partnership182,429$1.69M0.00%
Jane Street Group, LLC175,422$1.62M0.00%
Marshall Wace, LLP105,272$974.8K0.00%
Essex Investment Management Co LLC37,816$350.2K0.05%
EHP Funds Inc.25,242$233.7K0.31%
Cubist Systematic Strategies, LLC24,844$230.1K0.00%
GWN Securities Inc.20,423$189.1K0.04%
Susquehanna International Group, LLP19,937$184.6K0.00%
Wexford Capital LP18,808$174.2K0.05%
Brevan Howard Capital Management LP18,000$166.7K0.00%
HRT Financial LP16,463$152.0K0.00%
James Investment Research Inc14,600$135.2K0.01%
GWM Advisors LLC14,600$135.2K0.00%
Engineers Gate Manager LP13,442$124.5K0.00%
Thompson Davis & Co., Inc.13,250$122.7K0.08%
LPL Financial LLC12,815$118.7K0.00%
Millennium Management LLC11,946$110.6K0.00%
American Century Companies Inc10,623$98.4K0.00%
Wells Fargo & Company2,563$23.7K0.00%
Group One Trading, L.P.2,024$18.7K0.00%
Strengthening Families & Communities, LLC490$4.54K0.00%
Signaturefd, LLC400$3.70K0.00%
Barclays PLC30$2780.00%
Citigroup Inc1$90.00%

Sold out (6)

Institutions that held Amtech Systems Inc at the end of Q2 2025 and filed for Q3 2025 without it.

Institutions that sold out of ASYS in Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Commonwealth Equity Services, LLC38,500$171.0K
Sowell Financial Services LLC33,549$149.0K
Simplex Trading, LLC2,838$12.0K
Tower Research Capital LLC (TRC)884$3.92K
Raymond James Financial Inc700$3.11K
Jones Financial Companies LLLP10$46