ATMI INC Form SC 13D: Beneficial ownership report (active)
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2014-05-01: Form SC 13D/A; Description Beneficial ownership report (active); Document atmi_01.htm.
- 2014-02-13: Form SC 13D; Description Beneficial ownership report (active); Document atmi_00.htm.
- 1998-04-03: Form SC 13D; Description SCH13D.
- 1997-11-03: Form SC 13D/A; Description STEPHEN H. SIEGELE & ATMI, INC..
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2014-05-01 | SC 13D/A | Beneficial ownership report (active) | atmi_01.htm | |
| 2014-02-13 | SC 13D | Beneficial ownership report (active) | atmi_00.htm | |
| 1998-04-03 | SC 13D | SCH13D | ||
| 1997-11-03 | SC 13D/A | STEPHEN H. SIEGELE & ATMI, INC. | ||
| 1997-10-24 | SC 13D | STEPHEN H. SIEGELE & ATMI, INC. | ||
| 1997-10-15 | SC 13D | SCHEDULE 13D |