ENTEGRIS INC

Ticker: ENTG CUSIP: 29362U104 Class: EQTY

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025

Shares 460,440 Value ($000) $42,572 Avg Close $84.89 Range $70.21 - $98.85

Q2 2025

Shares 545,688 Value ($000) $44,010 Avg Close $75.73 Range $60.49 - $87.54

Q4 2022

Shares 490,106 Value ($000) $32,146 Avg Close $72.64 Range $60.94 - $90.44

Q3 2019

Shares 575,740 Value ($000) $27,094 Avg Close $41.06 Range $34.02 - $47.16

Q2 2019

Shares 716,591 Value ($000) $26,743 Avg Close $36.83 Range $32.80 - $40.83

Q1 2019

Shares 748,790 Value ($000) $26,724 Avg Close $32.31 Range $26.52 - $39.16

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	460,440	$42,572	$84.89	$70.21 - $98.85
Q2 2025	545,688	$44,010	$75.73	$60.49 - $87.54
Q4 2022	490,106	$32,146	$72.64	$60.94 - $90.44
Q3 2019	575,740	$27,094	$41.06	$34.02 - $47.16
Q2 2019	716,591	$26,743	$36.83	$32.80 - $40.83
Q1 2019	748,790	$26,724	$32.31	$26.52 - $39.16