# AMTECH SYS INC COM PAR $0.01N

AMTECH SYS INC COM PAR $0.01N is a security (CUSIP 032332504) tracked across SEC portfolio filings. 92 institutional managers reported $99.2M on Form 13F as of 2026-06-30; 6 registered fund positions totaling $2.4M via N-PORT as of 2026-04-30.

## Summary

- Issuer: AMTECH SYS INC
- Class: COM PAR $0.01N
- CUSIP: 032332504
- Asset category: EC
- 13F holders: 92
- 13F value: $99.2M
- 13F period: 2026-06-30
- N-PORT fund positions: 6
- N-PORT value: $2.4M
- N-PORT report: 2026-04-30

## Top institutional holders (Form 13F)

_Showing 15 of 92 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [First Eagle Investment Management, LLC](https://search.stillhousedata.com/firm/108260) | NEW YORK, NY | $19.6M | 848,426 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $7.9M | 631,905 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $6.2M | 529,351 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $5.3M | 453,597 |
| [MARSHALL WACE, LLP](https://search.stillhousedata.com/firm/160885) | LONDON, X0 | $4.9M | 417,076 |
| [Pacific Ridge Capital Partners, LLC](https://search.stillhousedata.com/firm/152154) | LAKE OSWEGO, OR | $4.7M | 405,371 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $4.3M | 365,387 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $4.0M | 340,879 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $3.1M | 266,856 |
| [Palisades Investment Partners, LLC](https://search.stillhousedata.com/firm/128173) | SANTA MONICA, CA | $2.4M | 102,691 |
| [Connor, Clark & Lunn Investment Management Ltd.](https://search.stillhousedata.com/firm/107557) | VANCOUVER, A1 | $2.0M | 174,159 |
| [Trexquant Investment LP](https://search.stillhousedata.com/firm/170476) | Stamford, CT | $2.0M | 173,889 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $2.0M | 133,938 |
| BlackRock, Inc. | New York, NY | $1.7M | 145,446 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $1.5M | 132,149 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $1.4M | 0.17% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $811K | 1.09% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $95K | 0.02% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $67K | 0.02% |
| [Vericimetry U.S. Small Cap Value Fund](https://search.stillhousedata.com/fund/S000033942) | VERICIMETRY FUNDS | $31K | 1.85% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $19K | 0.05% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/032332504.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.