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ATMI - As of 05/15/24, 12:47:11 PM: 20 Insider Transactions. Sector: Technology Industry: Semiconductor Equipment & Materials Prev Close:$0.00 Avg Vol(3m): 65,468 P/E: 0.00 EPS: 0.92 Email this page to a friend. Insider Transactions for ATMI

Buy/Sell*	Filed Date	Subject	Symbol	Acquirer	Pct Owned	Details
S	2014-05-01 12:05:40.0	ATMI INC	ATMI	GAMCO INVESTORS	0.0%	view
S	2014-03-10 13:47:48.0	ATMI INC	ATMI	WELLS FARGO & COMPANY	0.01%	view
S	2014-03-06 10:13:04.0	ATMI INC	ATMI	ROYCE & ASSOCIATES LLC	1.96%	view
B	2014-02-14 10:55:00.0	ATMI INC	ATMI	GRANAHAN INVESTMENT MANAGEMENT INC	5.9%	view
B	2014-02-13 15:59:13.0	ATMI INC	ATMI	GAMCO INVESTORS	3.75%	view
B	2014-02-11 10:11:04.0	ATMI INC	ATMI	VANGUARD GROUP INC	6.31%	view
S	2014-02-07 11:53:13.0	ATMI INC	ATMI	PRUDENTIAL FINANCIAL INC	n/a	view
S	2014-02-07 09:05:14.0	ATMI INC	ATMI	WESTFIELD CAPITAL MANAGEMENT CO LP	0.0%	view
S	2014-02-06 16:09:44.0	ATMI INC	ATMI	JENNISON ASSOCIATES LLC	2.3%	view
B	2014-01-28 11:27:50.0	ATMI INC	ATMI	WELLS FARGO & COMPANY	7.02%	view
B	2014-01-28 10:58:02.0	ATMI INC	ATMI	BlackRock Inc	8.8%	view
S	2014-01-06 14:10:09.0	ATMI INC	ATMI	ROYCE & ASSOCIATES LLC	8.91%	view
S	2013-03-29 14:59:33.0	ATMI INC	ATMI	WELLS FARGO & COMPANY	6.12%	view
S	2013-02-13 16:09:19.0	ATMI INC	ATMI	WELLS FARGO & COMPANY	6.19%	view
S	2013-02-12 16:36:50.0	ATMI INC	ATMI	JENNISON ASSOCIATES LLC	6.7%	view
S	2013-02-11 15:32:04.0	ATMI INC	ATMI	PRUDENTIAL FINANCIAL INC	7.0%	view
B	2013-02-11 11:19:44.0	ATMI INC	ATMI	VANGUARD GROUP INC	5.9%	view
S	2013-02-08 09:51:57.0	ATMI INC	ATMI	WESTFIELD CAPITAL MANAGEMENT CO LP	2.37%	view
B	2013-02-07 18:41:03.0	ATMI INC	ATMI	BlackRock Inc	7.6%	view
B	2013-01-03 16:13:32.0	ATMI INC	ATMI	ROYCE & ASSOCIATES LLC	10.89%	view

* Institutions do not report transaction buy/sell types directly. To help members better understand the transactions, this column is filled by InsiderCow's best-effort interpretations.