ENTEGRIS INC

Ticker: ENTG CUSIP: 29362U104 Class: EQTY

NEEDHAM INVESTMENT MANAGEMENT LLC's Holding History (CIK: 0001167212)

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

Q4 2025

Shares 191,400 Value ($000) $16,125 Avg Close $86.76 Range $67.91 - $101.29

Q3 2025

Shares 231,000 Value ($000) $21,358 Avg Close $84.89 Range $70.21 - $98.85

Q2 2025

Shares 240,000 Value ($000) $19,356 Avg Close $75.73 Range $60.49 - $87.54

Q1 2025

Shares 233,000 Value ($000) $20,383 Avg Close $100.41 Range $84.39 - $109.99

Q4 2024

Shares 240,000 Value ($000) $23,774 Avg Close $104.86 Range $94.42 - $113.19

Q3 2024

Shares 240,000 Value ($000) $27,007 Avg Close $117.63 Range $94.95 - $146.54

Q2 2024

Shares 233,500 Value ($000) $31,616 Avg Close $131.08 Range $119.43 - $142.71

Q1 2024

Shares 233,500 Value ($000) $32,816 Avg Close $126.74 Range $107.44 - $145.77

Q4 2023

Shares 233,500 Value ($000) $27,978 Avg Close $100.54 Range $83.41 - $121.53

Q3 2023

Shares 232,500 Value ($000) $21,834 Avg Close $99.12 Range $87.24 - $111.57

Q2 2023

Shares 231,500 Value ($000) $25,655 Avg Close $90.19 Range $68.54 - $113.26

Q1 2023

Shares 261,000 Value ($000) $21,405 Avg Close $80.03 Range $63.01 - $88.42

Q4 2022

Shares 261,500 Value ($000) $17,152 Avg Close $72.64 Range $60.94 - $90.44

Q3 2022

Shares 261,500 Value ($000) $21,711 Avg Close $96.21 Range $81.31 - $108.99

Q2 2022

Shares 261,500 Value ($000) $24,092 Avg Close $106.67 Range $89.00 - $130.58

Q1 2022

Shares 263,500 Value ($000) $34,588 Avg Close $126.46 Range $105.59 - $139.53

Q4 2021

Shares 268,500 Value ($000) $37,209 Avg Close $137.46 Range $116.03 - $155.32

Q3 2021

Shares 284,000 Value ($000) $35,756 Avg Close $118.42 Range $107.47 - $133.60

Q2 2021

Shares 285,000 Value ($000) $35,046 Avg Close $112.78 Range $99.32 - $124.02

Q1 2021

Shares 310,500 Value ($000) $34,714 Avg Close $101.00 Range $91.73 - $111.76

Q4 2020

Shares 326,500 Value ($000) $31,377 Avg Close $85.63 Range $72.68 - $98.15

Q3 2020

Shares 343,000 Value ($000) $25,498 Avg Close $65.62 Range $54.94 - $73.61

Q2 2020

Shares 364,000 Value ($000) $21,494 Avg Close $54.31 Range $39.60 - $63.49

Q1 2020

Shares 385,500 Value ($000) $17,258 Avg Close $50.63 Range $37.23 - $57.68

Q4 2019

Shares 411,500 Value ($000) $20,612 Avg Close $47.00 Range $43.45 - $50.25

Q3 2019

Shares 426,000 Value ($000) $20,048 Avg Close $41.06 Range $34.02 - $47.16

Q2 2019

Shares 435,000 Value ($000) $16,234 Avg Close $36.83 Range $32.80 - $40.83

Q1 2019

Shares 455,500 Value ($000) $16,257 Avg Close $32.31 Range $26.52 - $39.16

Q4 2018

Shares 505,000 Value ($000) $14,087 Avg Close $26.16 Range $22.58 - $29.45

Q3 2018

Shares 500,500 Value ($000) $14,489 Avg Close $32.48 Range $27.54 - $37.24

Q2 2018

Shares 500,500 Value ($000) $16,967 Avg Close $34.08 Range $30.69 - $38.11

Q1 2018

Shares 520,000 Value ($000) $18,096 Avg Close $32.52 Range $28.08 - $36.78

Q4 2017

Shares 543,000 Value ($000) $16,535 Avg Close $29.39 Range $27.05 - $31.71

Q3 2017

Shares 552,000 Value ($000) $15,926 Avg Close $24.35 Range $20.85 - $27.77

Q2 2017

Shares 552,000 Value ($000) $12,116 Avg Close $23.10 Range $20.97 - $26.04

Q1 2017

Shares 552,500 Value ($000) $12,929 Avg Close $19.78 Range $16.90 - $22.84

Q4 2016

Shares 560,000 Value ($000) $10,024 Avg Close $16.61 Range $14.10 - $18.14

Q3 2016

Shares 575,000 Value ($000) $10,017 Avg Close $15.71 Range $13.38 - $16.98

Q2 2016

Shares 727,000 Value ($000) $10,520 Avg Close $13.16 Range $12.25 - $14.14

Q1 2016

Shares 773,500 Value ($000) $10,535 Avg Close $11.59 Range $9.93 - $13.21

Q4 2015

Shares 806,000 Value ($000) $10,696 Avg Close $12.79 Range $11.83 - $13.71

Q3 2015

Shares 856,000 Value ($000) $11,291 Avg Close $13.21 Range $12.09 - $14.55

Q2 2015

Shares 875,000 Value ($000) $12,749 Avg Close $13.43 Range $12.47 - $14.47

Q1 2015

Shares 802,500 Value ($000) $10,986 Avg Close $12.62 Range $11.39 - $13.35

Q4 2014

Shares 787,500 Value ($000) $10,402 Avg Close $12.28 Range $10.22 - $13.37

Q3 2014

Shares 770,000 Value ($000) $8,855 Avg Close $11.78 Range $10.94 - $13.45

Q2 2014

Shares 735,000 Value ($000) $10,102 Avg Close $11.36 Range $10.24 - $13.27

Q1 2014

Shares 735,000 Value ($000) $8,900 Avg Close $11.16 Range $9.77 - $11.97

Q4 2013

Shares 735,000 Value ($000) $8,519 Avg Close $10.11 Range $9.45 - $11.15

Q3 2013

Shares 735,000 Value ($000) $7,468 Avg Close $9.26 Range $8.59 - $10.19

Q2 2013

Shares 720,000 Value ($000) $6,758 Avg Close $9.27 Range $8.51 - $10.07

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	191,400	$16,125	$86.76	$67.91 - $101.29
Q3 2025	231,000	$21,358	$84.89	$70.21 - $98.85
Q2 2025	240,000	$19,356	$75.73	$60.49 - $87.54
Q1 2025	233,000	$20,383	$100.41	$84.39 - $109.99
Q4 2024	240,000	$23,774	$104.86	$94.42 - $113.19
Q3 2024	240,000	$27,007	$117.63	$94.95 - $146.54
Q2 2024	233,500	$31,616	$131.08	$119.43 - $142.71
Q1 2024	233,500	$32,816	$126.74	$107.44 - $145.77
Q4 2023	233,500	$27,978	$100.54	$83.41 - $121.53
Q3 2023	232,500	$21,834	$99.12	$87.24 - $111.57
Q2 2023	231,500	$25,655	$90.19	$68.54 - $113.26
Q1 2023	261,000	$21,405	$80.03	$63.01 - $88.42
Q4 2022	261,500	$17,152	$72.64	$60.94 - $90.44
Q3 2022	261,500	$21,711	$96.21	$81.31 - $108.99
Q2 2022	261,500	$24,092	$106.67	$89.00 - $130.58
Q1 2022	263,500	$34,588	$126.46	$105.59 - $139.53
Q4 2021	268,500	$37,209	$137.46	$116.03 - $155.32
Q3 2021	284,000	$35,756	$118.42	$107.47 - $133.60
Q2 2021	285,000	$35,046	$112.78	$99.32 - $124.02
Q1 2021	310,500	$34,714	$101.00	$91.73 - $111.76
Q4 2020	326,500	$31,377	$85.63	$72.68 - $98.15
Q3 2020	343,000	$25,498	$65.62	$54.94 - $73.61
Q2 2020	364,000	$21,494	$54.31	$39.60 - $63.49
Q1 2020	385,500	$17,258	$50.63	$37.23 - $57.68
Q4 2019	411,500	$20,612	$47.00	$43.45 - $50.25
Q3 2019	426,000	$20,048	$41.06	$34.02 - $47.16
Q2 2019	435,000	$16,234	$36.83	$32.80 - $40.83
Q1 2019	455,500	$16,257	$32.31	$26.52 - $39.16
Q4 2018	505,000	$14,087	$26.16	$22.58 - $29.45
Q3 2018	500,500	$14,489	$32.48	$27.54 - $37.24
Q2 2018	500,500	$16,967	$34.08	$30.69 - $38.11
Q1 2018	520,000	$18,096	$32.52	$28.08 - $36.78
Q4 2017	543,000	$16,535	$29.39	$27.05 - $31.71
Q3 2017	552,000	$15,926	$24.35	$20.85 - $27.77
Q2 2017	552,000	$12,116	$23.10	$20.97 - $26.04
Q1 2017	552,500	$12,929	$19.78	$16.90 - $22.84
Q4 2016	560,000	$10,024	$16.61	$14.10 - $18.14
Q3 2016	575,000	$10,017	$15.71	$13.38 - $16.98
Q2 2016	727,000	$10,520	$13.16	$12.25 - $14.14
Q1 2016	773,500	$10,535	$11.59	$9.93 - $13.21
Q4 2015	806,000	$10,696	$12.79	$11.83 - $13.71
Q3 2015	856,000	$11,291	$13.21	$12.09 - $14.55
Q2 2015	875,000	$12,749	$13.43	$12.47 - $14.47
Q1 2015	802,500	$10,986	$12.62	$11.39 - $13.35
Q4 2014	787,500	$10,402	$12.28	$10.22 - $13.37
Q3 2014	770,000	$8,855	$11.78	$10.94 - $13.45
Q2 2014	735,000	$10,102	$11.36	$10.24 - $13.27
Q1 2014	735,000	$8,900	$11.16	$9.77 - $11.97
Q4 2013	735,000	$8,519	$10.11	$9.45 - $11.15
Q3 2013	735,000	$7,468	$9.26	$8.59 - $10.19
Q2 2013	720,000	$6,758	$9.27	$8.51 - $10.07