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Amtech Systems shares owned by Signature

Quarter-by-quarter ownership of Amtech Systems (ASYS) shares owned by Signature from 13F filings

Historical chart of Signature investment in Amtech Systems

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All positions including Amtech Systems held by Signature consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Amtech Systems by Signature

Quarter filed Position value Share count Share price at filing
2025-09-30 $3.7k 400 9.26
2021-03-31 $4.0k 300 13.33

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J P Morgan Exchange Traded F Us Qualty Fctr (JQUA)
Ishares Tr Core Msci Eafe (IEFA)
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Vanguard Index Fds Large Cap Etf (VV)
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Vanguard Index Fds Growth Etf (VUG)

View all positions for Signature

Top funds holding Amtech Systems

Dimensional Fund Advisors
First Eagle Investment Management
Vanguard Group
Pacific Ridge Capital Partners
Arrowstreet Capital, Limited Partnership
Jane Street
BlackRock
Geode Capital Management
Marshall Wace
Acadian Asset Management
Citadel Advisors
Bridgeway Capital Management
Susquehanna International
State Street Corporation
Essex Investment Management

View all funds holding Amtech Systems