ILLINOIS TOOL WKS INC

Ticker: ITW CUSIP: 452308109 Class: COM

Chesley Taft & Associates LLC's Holding History (CIK: 0001164632)

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

Q4 2025

Shares 78,259 Value ($000) $19,275 Avg Close $247.57 Range $237.29 - $261.06

Q3 2025

Shares 80,342 Value ($000) $20,950 Avg Close $257.33 Range $242.11 - $267.35

Q2 2025

Shares 83,909 Value ($000) $20,747 Avg Close $237.16 Range $210.69 - $248.54

Q1 2025

Shares 85,223 Value ($000) $21,136 Avg Close $250.69 Range $236.75 - $271.32

Q4 2024

Shares 86,553 Value ($000) $21,946 Avg Close $257.33 Range $244.78 - $270.69

Q3 2024

Shares 86,982 Value ($000) $22,795 Avg Close $237.29 Range $224.45 - $258.13

Q2 2024

Shares 88,366 Value ($000) $20,939 Avg Close $236.81 Range $223.33 - $257.46

Q1 2024

Shares 88,768 Value ($000) $23,819 Avg Close $247.64 Range $237.66 - $258.55

Q4 2023

Shares 89,104 Value ($000) $23,340 Avg Close $227.33 Range $206.29 - $251.34

Q3 2023

Shares 90,623 Value ($000) $20,871 Avg Close $230.07 Range $215.30 - $249.06

Q2 2023

Shares 91,380 Value ($000) $22,860 Avg Close $219.64 Range $203.55 - $237.00

Q1 2023

Shares 91,720 Value ($000) $22,329 Avg Close $217.67 Range $203.17 - $236.30

Q4 2022

Shares 92,461 Value ($000) $20,369 Avg Close $197.50 Range $167.30 - $214.80

Q3 2022

Shares 93,105 Value ($000) $16,819 Avg Close $181.67 Range $159.75 - $200.62

Q2 2022

Shares 95,391 Value ($000) $17,385 Avg Close $182.99 Range $162.17 - $195.56

Q1 2022

Shares 96,286 Value ($000) $19,239 Avg Close $203.67 Range $184.43 - $227.18

Q4 2021

Shares 97,009 Value ($000) $23,942 Avg Close $210.30 Range $184.61 - $225.16

Q3 2021

Shares 98,786 Value ($000) $20,412 Avg Close $202.90 Range $186.93 - $211.96

Q2 2021

Shares 98,796 Value ($000) $22,087 Avg Close $205.01 Range $194.69 - $216.70

Q1 2021

Shares 98,745 Value ($000) $21,951 Avg Close $184.98 Range $171.80 - $203.76

Q4 2020

Shares 95,201 Value ($000) $19,410 Avg Close $181.01 Range $166.62 - $198.99

Q3 2020

Shares 95,193 Value ($000) $18,392 Avg Close $167.30 Range $151.59 - $178.89

Q2 2020

Shares 97,202 Value ($000) $16,996 Avg Close $142.90 Range $116.56 - $161.60

Q1 2020

Shares 98,667 Value ($000) $14,023 Avg Close $147.58 Range $100.67 - $165.72

Q4 2019

Shares 97,548 Value ($000) $17,523 Avg Close $146.29 Range $126.07 - $157.39

Q3 2019

Shares 98,012 Value ($000) $15,338 Avg Close $130.19 Range $122.69 - $138.62

Q2 2019

Shares 97,988 Value ($000) $14,778 Avg Close $128.58 Range $116.59 - $135.13

Q1 2019

Shares 97,393 Value ($000) $13,979 Avg Close $117.01 Range $103.65 - $124.26

Q4 2018

Shares 97,528 Value ($000) $12,356 Avg Close $110.50 Range $98.77 - $121.67

Q3 2018

Shares 99,933 Value ($000) $14,103 Avg Close $117.42 Range $111.99 - $124.25

Q2 2018

Shares 99,453 Value ($000) $13,778 Avg Close $122.64 Range $114.08 - $132.71

Q1 2018

Shares 99,448 Value ($000) $15,580 Avg Close $136.85 Range $126.80 - $147.59

Q4 2017

Shares 100,164 Value ($000) $16,712 Avg Close $130.85 Range $121.38 - $139.21

Q3 2017

Shares 112,101 Value ($000) $16,586 Avg Close $116.05 Range $110.22 - $121.46

Q2 2017

Shares 109,278 Value ($000) $15,654 Avg Close $113.32 Range $105.74 - $122.08

Q1 2017

Shares 110,307 Value ($000) $14,612 Avg Close $104.58 Range $97.05 - $109.96

Q4 2016

Shares 113,907 Value ($000) $13,949 Avg Close $97.16 Range $89.66 - $102.92

Q3 2016

Shares 114,812 Value ($000) $13,759 Avg Close $92.87 Range $82.44 - $98.77

Q2 2016

Shares 115,127 Value ($000) $11,992 Avg Close $83.28 Range $78.19 - $87.12

Q1 2016

Shares 116,016 Value ($000) $11,885 Avg Close $73.25 Range $62.61 - $81.90

Q4 2015

Shares 116,060 Value ($000) $10,756 Avg Close $71.40 Range $63.03 - $74.70

Q3 2015

Shares 123,221 Value ($000) $10,142 Avg Close $68.35 Range $61.54 - $73.68

Q2 2015

Shares 120,646 Value ($000) $11,074 Avg Close $73.98 Range $71.31 - $77.64

Q1 2015

Shares 120,733 Value ($000) $11,728 Avg Close $74.54 Range $69.91 - $77.42

Q4 2014

Shares 125,028 Value ($000) $11,840 Avg Close $70.08 Range $60.82 - $75.22

Q3 2014

Shares 125,993 Value ($000) $10,636 Avg Close $66.18 Range $62.50 - $68.52

Q2 2014

Shares 129,826 Value ($000) $11,368 Avg Close $65.43 Range $61.51 - $68.13

Q1 2014

Shares 131,226 Value ($000) $10,673 Avg Close $61.28 Range $57.74 - $63.70

Q4 2013

Shares 131,628 Value ($000) $11,067 Avg Close $59.45 Range $55.46 - $63.85

Q3 2013

Shares 131,478 Value ($000) $10,028 Avg Close $54.78 Range $51.08 - $58.87

Q2 2013

Shares 133,334 Value ($000) $9,223 Avg Close $49.85 Range $44.73 - $53.46

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	78,259	$19,275	$247.57	$237.29 - $261.06
Q3 2025	80,342	$20,950	$257.33	$242.11 - $267.35
Q2 2025	83,909	$20,747	$237.16	$210.69 - $248.54
Q1 2025	85,223	$21,136	$250.69	$236.75 - $271.32
Q4 2024	86,553	$21,946	$257.33	$244.78 - $270.69
Q3 2024	86,982	$22,795	$237.29	$224.45 - $258.13
Q2 2024	88,366	$20,939	$236.81	$223.33 - $257.46
Q1 2024	88,768	$23,819	$247.64	$237.66 - $258.55
Q4 2023	89,104	$23,340	$227.33	$206.29 - $251.34
Q3 2023	90,623	$20,871	$230.07	$215.30 - $249.06
Q2 2023	91,380	$22,860	$219.64	$203.55 - $237.00
Q1 2023	91,720	$22,329	$217.67	$203.17 - $236.30
Q4 2022	92,461	$20,369	$197.50	$167.30 - $214.80
Q3 2022	93,105	$16,819	$181.67	$159.75 - $200.62
Q2 2022	95,391	$17,385	$182.99	$162.17 - $195.56
Q1 2022	96,286	$19,239	$203.67	$184.43 - $227.18
Q4 2021	97,009	$23,942	$210.30	$184.61 - $225.16
Q3 2021	98,786	$20,412	$202.90	$186.93 - $211.96
Q2 2021	98,796	$22,087	$205.01	$194.69 - $216.70
Q1 2021	98,745	$21,951	$184.98	$171.80 - $203.76
Q4 2020	95,201	$19,410	$181.01	$166.62 - $198.99
Q3 2020	95,193	$18,392	$167.30	$151.59 - $178.89
Q2 2020	97,202	$16,996	$142.90	$116.56 - $161.60
Q1 2020	98,667	$14,023	$147.58	$100.67 - $165.72
Q4 2019	97,548	$17,523	$146.29	$126.07 - $157.39
Q3 2019	98,012	$15,338	$130.19	$122.69 - $138.62
Q2 2019	97,988	$14,778	$128.58	$116.59 - $135.13
Q1 2019	97,393	$13,979	$117.01	$103.65 - $124.26
Q4 2018	97,528	$12,356	$110.50	$98.77 - $121.67
Q3 2018	99,933	$14,103	$117.42	$111.99 - $124.25
Q2 2018	99,453	$13,778	$122.64	$114.08 - $132.71
Q1 2018	99,448	$15,580	$136.85	$126.80 - $147.59
Q4 2017	100,164	$16,712	$130.85	$121.38 - $139.21
Q3 2017	112,101	$16,586	$116.05	$110.22 - $121.46
Q2 2017	109,278	$15,654	$113.32	$105.74 - $122.08
Q1 2017	110,307	$14,612	$104.58	$97.05 - $109.96
Q4 2016	113,907	$13,949	$97.16	$89.66 - $102.92
Q3 2016	114,812	$13,759	$92.87	$82.44 - $98.77
Q2 2016	115,127	$11,992	$83.28	$78.19 - $87.12
Q1 2016	116,016	$11,885	$73.25	$62.61 - $81.90
Q4 2015	116,060	$10,756	$71.40	$63.03 - $74.70
Q3 2015	123,221	$10,142	$68.35	$61.54 - $73.68
Q2 2015	120,646	$11,074	$73.98	$71.31 - $77.64
Q1 2015	120,733	$11,728	$74.54	$69.91 - $77.42
Q4 2014	125,028	$11,840	$70.08	$60.82 - $75.22
Q3 2014	125,993	$10,636	$66.18	$62.50 - $68.52
Q2 2014	129,826	$11,368	$65.43	$61.51 - $68.13
Q1 2014	131,226	$10,673	$61.28	$57.74 - $63.70
Q4 2013	131,628	$11,067	$59.45	$55.46 - $63.85
Q3 2013	131,478	$10,028	$54.78	$51.08 - $58.87
Q2 2013	133,334	$9,223	$49.85	$44.73 - $53.46