Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
PITON CAPITAL PARTNERS LLC - 01 Jun 2026 SCHEDULE 13D/A Report for Amtech Systems Inc. Common Stock, $0.01 Par Value Per Share (ASYS)
- Filing manager
- PITON CAPITAL PARTNERS LLC
- Reporting owner
- Robert Averick
- Beneficially owned shares
- 2,986,341 shares
- Large-stake signal
-
Ownership
21%Beneficial ownership of this reported class.
Shares
2,986,341 sharesShares beneficially owned as disclosed.
Event date
01 Jun 2026Date tied to the ownership event or amendment.
Accepted by SEC
02 Jun 2026EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 21%
- Symbol
- ASYS
- Shares outstanding
- 14,496,801 shares
- SEC form
- SCHEDULE 13D/A
- Accepted by SEC
- 02 Jun 2026, 19:29:15 UTC
- Event date
- 01 Jun 2026
- Prior SEC filing
- 18 Feb 2025
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
5 source fields
Key filing fact
PITON CAPITAL PARTNERS LLC disclosed 21% ownership in Amtech Systems Inc. Common Stock, $0.01 Par Value Per Share (ASYS) on 01 Jun 2026.
Key facts
- PITON CAPITAL PARTNERS LLC filed SCHEDULE 13D/A for Amtech Systems Inc. Common Stock, $0.01 Par Value Per Share (ASYS).
- Disclosed ownership: 21%.
- Date of event: 01 Jun 2026.
Change
- Previous schedule filing date: 18 Feb 2025.
- Current filing was accepted on 02 Jun 2026, 19:29.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (5)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Piton Capital Partners LLC | 4.1% | 600,000 | 600,000 | 0 | /s/ Garrett Lynam | Garrett Lynam, as General Counsel of Kokino LLC (as Managing Member of Piton Capital Management LLC, Managing Member of Piton Capital Partners) | 0001644342 |
| Cornice Fiduciary Management LLC, as Trustee under Trust Agreement dated December 23, 1989 FBO the issue of Jonathan D. Sackler | 9.6% | 1,386,312 | 1,386,312 | 0 | /s/ Jeffrey Robins | Jeffrey Robins, Vice President | 0001760183 |
| Robert Averick | 21% | 2,986,341 | 0 | 2,986,341 | /s/ Robert Averick | Robert Averick | 0001343599 |
| M3C Holdings LLC | 1.8% | 263,688 | 263,688 | 0 | /s/ Garrett Lynam | Garrett Lynam, Vice President | 0001595803 |
| OIH LLC | 0.2% | 22,917 | 22,917 | 0 | /s/ Brian Olson | Brian Olson, Manager | 0001651816 |
CIK / CUSIP context first