SCHEDULE 13G Filed 2026-07-27 Event — SEC 0001493152-26-034783 →

HIRSCHMAN ORIN → Amtech Systems, Inc. ASYS

Stake: — Shares: — Class: Common Stock, par value $0.01 per share

Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 16/100

Passive Schedule 13G filer baseline
Elevated short days-to-cover (5.9 DTC)

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

9 filings by this filer

8 other filings in the data moat

Short Interest · settle 2026-10-15

DTC 5.90

1,362,222 shares short · -13.5% vs prior

Other 13D/G Filings on Amtech Systems, Inc.

Filed	Form	Filer	Stake	Shares
2026-10-09	SCHEDULE 13G	WASATCH ADVISORS LP	—	—	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 →
2018-01-03	SC	ROYCE & ASSOCIATES LP	—	—	view →

Other Filings by HIRSCHMAN ORIN

Filed	Form	Issuer	Stake	Shares
2026-10-19	SCHEDULE 13G	Kyverna Therapeutics, Inc.	—	—	view →
2026-10-19	SCHEDULE 13G	Orion Energy Systems, Inc.	—	—	view →
2026-10-19	SCHEDULE 13G	METHODE ELECTRONICS INC	—	—	view →
2026-10-19	SCHEDULE 13G	AEye, Inc.	—	—	view →
2026-10-19	SCHEDULE 13G	ASPEN AEROGELS, INC.	—	—	view →
2026-10-19	SCHEDULE 13G	Bionano Genomics, Inc.	—	—	view →
2026-10-19	SCHEDULE 13G	EDAP TMS S.A.	—	—	view →
2026-06-22	SCHEDULE 13G	NYXOAH SA NYXH	—	—	view →

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