ENTEGRIS INC

Ticker: ENTG CUSIP: 29362U104 Class: EQTY

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q4 2025

Shares 1,047,498 Value ($000) $88,252 Avg Close $86.76 Range $67.91 - $101.29

Q3 2025

Shares 1,481,594 Value ($000) $136,988 Avg Close $84.89 Range $70.21 - $98.85

Q2 2025

Shares 659,306 Value ($000) $53,173 Avg Close $75.73 Range $60.49 - $87.54

Q1 2025

Shares 428,531 Value ($000) $37,488 Avg Close $100.41 Range $84.39 - $109.99

Q4 2024

Shares 70,045 Value ($000) $6,939 Avg Close $104.86 Range $94.42 - $113.19

Q3 2024

Shares 74,404 Value ($000) $8,373 Avg Close $117.63 Range $94.95 - $146.54

Q1 2019

Shares 313,230 Value ($000) $11,179 Avg Close $32.31 Range $26.52 - $39.16

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,047,498	$88,252	$86.76	$67.91 - $101.29
Q3 2025	1,481,594	$136,988	$84.89	$70.21 - $98.85
Q2 2025	659,306	$53,173	$75.73	$60.49 - $87.54
Q1 2025	428,531	$37,488	$100.41	$84.39 - $109.99
Q4 2024	70,045	$6,939	$104.86	$94.42 - $113.19
Q3 2024	74,404	$8,373	$117.63	$94.95 - $146.54
Q1 2019	313,230	$11,179	$32.31	$26.52 - $39.16