Amtech Systems, Inc. (ASYS) ownership: Wax Asset Management, LLC 35% · institutions 40% · index and ETF funds 4% (13F 2026-03-31). Insider activity, 90 days: Insiders bought (0 sales, 1 open-market buys). SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| First Eagle | 832453.00 | $9.72M | 4.8% | 2026-03-31 |
| Vanguard | 631905.00 | $7.38M | 3.6% | 2026-03-31 |
| Dimensional Fund Advisors | 529351.00 | $6.18M | 3.0% | 2026-03-31 |
| Acadian Asset Management | 466837.00 | $5.45M | 2.7% | 2026-03-31 |
| Millennium Management | 453597.00 | $5.30M | 2.6% | 2026-03-31 |
| Marshall Wace | 417076.00 | $4.87M | 2.4% | 2026-03-31 |
| Pacific Ridge Capital Partners, LLC | 405371.00 | $4.73M | 2.3% | 2026-03-31 |
| Arrowstreet Capital | 365387.00 | $4.27M | 2.1% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Buy | null | 2026-08-24 | |
| Sell | null | 2026-08-04 | |
| Sell | null | 2026-08-04 | |
| Sell | null | 2026-08-04 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 |
Back to ASYS overview · ASYS earnings · All congressional trades
Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.