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SC Filed 2018-01-03 Event — SEC 0000906304-18-000002 →

ROYCE & ASSOCIATES LP → AMTECH SYSTEMS INC ASYS

Stake: — Shares: —

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
0 transactions
0 buys · 0 sales · 0 awards/exercises
Issuer Cluster
8 13D/G filings on this issuer
7 other filings besides this one
Filer Track Record
12 filings by this filer
11 other filings in the data moat
Short Interest · settle 2026-09-30
DTC 5.59
1,575,299 shares short · -0.9% vs prior

Other 13D/G Filings on AMTECH SYSTEMS INC

FiledFormFilerStakeShares
2026-10-09 SCHEDULE 13G WASATCH ADVISORS LP — — view →
2026-07-27 SCHEDULE 13G HIRSCHMAN ORIN — — view →
2026-06-02 SCHEDULE 13D/A PITON CAPITAL PARTNERS LLC 20.60% 600,000 view →
2025-02-18 SCHEDULE PITON CAPITAL PARTNERS LLC 20.20% 2,894,588 view →
2022-02-24 SC PITON CAPITAL PARTNERS LLC — — view →
2020-01-30 SC Privet Fund LP — — view →
2018-07-17 SC Schreyer Leslie J — — view →

Other Filings by ROYCE & ASSOCIATES LP

FiledFormIssuerStakeShares
2026-07-22 SCHEDULE 13G Westport Fuel Systems Inc. — — view →
2026-07-22 SCHEDULE 13G Inseego Corp — — view →
2026-07-22 SCHEDULE 13G LSI Industries Inc. — — view →
2026-07-22 SCHEDULE 13G OptimizeRx Corp — — view →
2026-07-22 SCHEDULE 13G Ranger Energy Services, Inc. — — view →
2026-07-21 SCHEDULE 13G CPI Aerostructures, Inc. — — view →
2026-07-21 SCHEDULE 13G/A Apyx Medical Corporation — — view →
2018-01-03 SC LAYNE CHRISTENSEN CO — — view →
2018-01-03 SC Lipocine Inc. LPCN — — view →
2018-01-03 SC CSS INDUSTRIES INC — — view →
2018-01-03 SC SYNALLOY CORP ACNT — — view →

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