| Filed On | Filing |
|---|---|
| 11 Apr 2013 | DEF 14A |
| 05 Apr 2012 | DEF 14A |
| 08 Apr 2011 | DEFINITIVE PROXY STATEMENT |
| 09 Apr 2010 | DEF 14A |
| 03 Apr 2009 | SCHEDULE 14A |
| 23 Apr 2008 | DEFINITIVE PROXY STATEMENT |
| 25 Apr 2007 | DEFINITIVE PROXY STATEMENT |
| 24 Apr 2006 | DEF 14A |
| 22 Apr 2005 | NOTIFICATION OF ANNUAL MEETING: ATMI, INC. |
| 22 Apr 2004 | ATMI, INC. |
| 21 Apr 2003 | ATMI, INC. |
| 19 Apr 2002 | ATMI, INC. |
| 23 Apr 2001 | NOTICE AND PROXY STATEMENT |
| 28 Apr 2000 | DEFINITIVE PROXY STATEMENT |
| 28 Apr 1999 | DEFINITIVE PROXY STATEMENT |
| 28 Apr 1998 | DEFINITIVE PROXY STATEMENT |
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