Instuitional Investor - Snyder Capital Management L P

13F Holdings

Filing Period:

No.	Security	Ticker	Shares	Value	% Port
1.	Entegris Inc	ENTG	1,764,240	$317,316,206	5.48%
2.	Clean Harbors Inc	CLH	922,182	$275,501,872	4.76%
3.	Bwx Technologies Inc.	BWXT	1,237,512	$240,881,711	4.16%
4.	Bio-Techne Corp	TECH	3,163,816	$223,523,600	3.86%
5.	Halozyme Therapeutics Inc.	HALO	2,396,101	$187,542,825	3.24%