| Filed | Form | Filer | Stake | Shares | |
|---|---|---|---|---|---|
| 2018-03-22 | SC | Schreyer Leslie J | — | — | view → |
| 2018-03-22 | SC | GAMCO INVESTORS, INC. ET AL | — | — | view → |
| 2018-03-05 | SC | GAMCO INVESTORS, INC. ET AL | — | — | view → |
| 2018-01-29 | SC | Harbert Discovery Fund, LP | — | — | view → |
| Filed | Form | Issuer | Stake | Shares | |
|---|---|---|---|---|---|
| 2018-07-17 | SC | AMTECH SYSTEMS INC ASYS | — | — | view → |
| 2018-03-22 | SC | KEY TECHNOLOGY INC | — | — | view → |
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