Amtech Systems, Inc. (ASYS) ownership: Top institutional holder: First Eagle Investment Management, LLC ($9.72M). Insider activity: Net Seller (0 buys, 20 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| First Eagle Investment Management, LLC | 832453.00 | $9.72M | 2026-03-31 |
| VANGUARD GROUP INC | 631905.00 | $7.93M | 2025-12-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 564327.00 | $6.59M | 2026-03-31 |
| DIMENSIONAL FUND ADVISORS LP | 529351.00 | $6.18M | 2026-03-31 |
| ACADIAN ASSET MANAGEMENT LLC | 466837.00 | $5.45M | 2026-03-31 |
| MILLENNIUM MANAGEMENT LLC | 453597.00 | $5.30M | 2026-03-31 |
| MARSHALL WACE, LLP | 417076.00 | $4.87M | 2026-03-31 |
| Pacific Ridge Capital Partners, LLC | 405371.00 | $4.73M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-19 | |
| Sell | null | 2026-05-19 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.