# AMTECH SYS INC (ASYS) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 032332504
Page URL: https://superinvestorclub.com/stock/ASYS
Last updated: 2026-07-27T02:25:30.119Z

## Summary

As of the most recent 13F filing period, AMTECH SYS INC (ASYS) is held by 1 tracked superinvestors with an aggregate position value of $9.7M representing 0832453 shares.

## Top institutional holders (1)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [First Eagle](https://superinvestorclub.com/manager/21222) | First Eagle Investment Management | 832453 | $9.7M | 0.02% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2023-06-30: 1 holders, $3.9M aggregate, 0413079 shares
- 2023-09-30: 1 holders, $4.4M aggregate, 0574346 shares
- 2023-12-31: 1 holders, $2.4M aggregate, 0581955 shares
- 2024-03-31: 1 holders, $3.2M aggregate, 0598045 shares
- 2024-06-30: 1 holders, $4.0M aggregate, 0675844 shares
- 2024-09-30: 1 holders, $4.5M aggregate, 0783367 shares
- 2024-12-31: 1 holders, $4.6M aggregate, 0834922 shares
- 2025-03-31: 1 holders, $4.1M aggregate, 0841922 shares
- 2025-06-30: 1 holders, $3.6M aggregate, 0800382 shares
- 2025-09-30: 1 holders, $7.0M aggregate, 0752346 shares
- 2025-12-31: 1 holders, $9.2M aggregate, 0734346 shares
- 2026-03-31: 1 holders, $9.7M aggregate, 0832453 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "AMTECH SYS INC (ASYS) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/ASYS), aggregating SEC 13F, Form 4, and congressional disclosures."