ILLINOIS TOOL WKS INC

Ticker: ITW CUSIP: 452308109 Class: COM

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2025

Shares 151,604 Value ($000) $37,340 Avg Close $247.57 Range $237.29 - $261.06

Q3 2025

Shares 154,992 Value ($000) $40,416 Avg Close $257.33 Range $242.11 - $267.35

Q2 2025

Shares 157,899 Value ($000) $39,041 Avg Close $237.16 Range $210.69 - $248.54

Q1 2025

Shares 174,551 Value ($000) $43,290 Avg Close $250.69 Range $236.75 - $271.32

Q4 2024

Shares 176,575 Value ($000) $44,772 Avg Close $257.33 Range $244.78 - $270.69

Q3 2024

Shares 184,469 Value ($000) $48,344 Avg Close $237.29 Range $224.45 - $258.13

Q2 2024

Shares 172,422 Value ($000) $40,857 Avg Close $236.81 Range $223.33 - $257.46

Q1 2024

Shares 196,793 Value ($000) $52,805 Avg Close $247.64 Range $237.66 - $258.55

Q4 2023

Shares 172,368 Value ($000) $45,150 Avg Close $227.33 Range $206.29 - $251.34

Q3 2023

Shares 172,808 Value ($000) $39,799 Avg Close $230.07 Range $215.30 - $249.06

Q2 2023

Shares 161,396 Value ($000) $40,375 Avg Close $219.64 Range $203.55 - $237.00

Q1 2023

Shares 164,139 Value ($000) $39,960 Avg Close $217.67 Range $203.17 - $236.30

Q4 2022

Shares 170,112 Value ($000) $37,476 Avg Close $197.50 Range $167.30 - $214.80

Q3 2022

Shares 193,020 Value ($000) $34,869 Avg Close $181.67 Range $159.75 - $200.62

Q2 2022

Shares 228,261 Value ($000) $41,601 Avg Close $182.99 Range $162.17 - $195.56

Q1 2022

Shares 236,709 Value ($000) $49,567 Avg Close $203.67 Range $184.43 - $227.18

Q4 2021

Shares 256,167 Value ($000) $63,222 Avg Close $210.30 Range $184.61 - $225.16

Q3 2021

Shares 291,207 Value ($000) $60,172 Avg Close $202.90 Range $186.93 - $211.96

Q2 2021

Shares 282,059 Value ($000) $63,057 Avg Close $205.01 Range $194.69 - $216.70

Q1 2021

Shares 286,447 Value ($000) $63,454 Avg Close $184.98 Range $171.80 - $203.76

Q4 2020

Shares 178,179 Value ($000) $36,327 Avg Close $181.01 Range $166.62 - $198.99

Q3 2020

Shares 166,482 Value ($000) $32,166 Avg Close $167.30 Range $151.59 - $178.89

Q2 2020

Shares 184,462 Value ($000) $32,253 Avg Close $142.90 Range $116.56 - $161.60

Q1 2020

Shares 160,092 Value ($000) $22,752 Avg Close $147.58 Range $100.67 - $165.72

Q4 2019

Shares 298,898 Value ($000) $53,691 Avg Close $146.29 Range $126.07 - $157.39

Q3 2019

Shares 288,219 Value ($000) $45,103 Avg Close $130.19 Range $122.69 - $138.62

Q2 2019

Shares 303,143 Value ($000) $45,717 Avg Close $128.58 Range $116.59 - $135.13

Q1 2019

Shares 319,164 Value ($000) $45,810 Avg Close $117.01 Range $103.65 - $124.26

Q4 2018

Shares 298,497 Value ($000) $37,817 Avg Close $110.50 Range $98.77 - $121.67

Q3 2018

Shares 323,177 Value ($000) $45,607 Avg Close $117.42 Range $111.99 - $124.25

Q2 2018

Shares 327,078 Value ($000) $45,313 Avg Close $122.64 Range $114.08 - $132.71

Q1 2018

Shares 298,975 Value ($000) $46,837 Avg Close $136.85 Range $126.80 - $147.59

Q4 2017

Shares 311,274 Value ($000) $51,936 Avg Close $130.85 Range $121.38 - $139.21

Q3 2017

Shares 310,341 Value ($000) $45,918 Avg Close $116.05 Range $110.22 - $121.46

Q2 2017

Shares 261,645 Value ($000) $37,481 Avg Close $113.32 Range $105.74 - $122.08

Q1 2017

Shares 196,355 Value ($000) $26,011 Avg Close $104.58 Range $97.05 - $109.96

Q4 2016

Shares 149,806 Value ($000) $18,345 Avg Close $97.16 Range $89.66 - $102.92

Q3 2016

Shares 178,199 Value ($000) $21,355 Avg Close $92.87 Range $82.44 - $98.77

Q2 2016

Shares 185,519 Value ($000) $19,324 Avg Close $83.28 Range $78.19 - $87.12

Q1 2016

Shares 201,779 Value ($000) $20,670 Avg Close $73.25 Range $62.61 - $81.90

Q4 2015

Shares 210,619 Value ($000) $19,520 Avg Close $71.40 Range $63.03 - $74.70

Q3 2015

Shares 223,509 Value ($000) $18,397 Avg Close $68.35 Range $61.54 - $73.68

Q2 2015

Shares 229,679 Value ($000) $21,082 Avg Close $73.98 Range $71.31 - $77.64

Q1 2015

Shares 245,719 Value ($000) $23,869 Avg Close $74.54 Range $69.91 - $77.42

Q4 2014

Shares 252,449 Value ($000) $23,907 Avg Close $70.08 Range $60.82 - $75.22

Q3 2014

Shares 231,343 Value ($000) $19,530 Avg Close $66.18 Range $62.50 - $68.52

Q2 2014

Shares 229,653 Value ($000) $20,108 Avg Close $65.43 Range $61.51 - $68.13

Q1 2014

Shares 250,693 Value ($000) $20,389 Avg Close $61.28 Range $57.74 - $63.70

Q4 2013

Shares 265,663 Value ($000) $22,337 Avg Close $59.45 Range $55.46 - $63.85

Q3 2013

Shares 273,743 Value ($000) $20,878 Avg Close $54.78 Range $51.08 - $58.87

Q2 2013

Shares 347,463 Value ($000) $24,034 Avg Close $49.85 Range $44.73 - $53.46

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	151,604	$37,340	$247.57	$237.29 - $261.06
Q3 2025	154,992	$40,416	$257.33	$242.11 - $267.35
Q2 2025	157,899	$39,041	$237.16	$210.69 - $248.54
Q1 2025	174,551	$43,290	$250.69	$236.75 - $271.32
Q4 2024	176,575	$44,772	$257.33	$244.78 - $270.69
Q3 2024	184,469	$48,344	$237.29	$224.45 - $258.13
Q2 2024	172,422	$40,857	$236.81	$223.33 - $257.46
Q1 2024	196,793	$52,805	$247.64	$237.66 - $258.55
Q4 2023	172,368	$45,150	$227.33	$206.29 - $251.34
Q3 2023	172,808	$39,799	$230.07	$215.30 - $249.06
Q2 2023	161,396	$40,375	$219.64	$203.55 - $237.00
Q1 2023	164,139	$39,960	$217.67	$203.17 - $236.30
Q4 2022	170,112	$37,476	$197.50	$167.30 - $214.80
Q3 2022	193,020	$34,869	$181.67	$159.75 - $200.62
Q2 2022	228,261	$41,601	$182.99	$162.17 - $195.56
Q1 2022	236,709	$49,567	$203.67	$184.43 - $227.18
Q4 2021	256,167	$63,222	$210.30	$184.61 - $225.16
Q3 2021	291,207	$60,172	$202.90	$186.93 - $211.96
Q2 2021	282,059	$63,057	$205.01	$194.69 - $216.70
Q1 2021	286,447	$63,454	$184.98	$171.80 - $203.76
Q4 2020	178,179	$36,327	$181.01	$166.62 - $198.99
Q3 2020	166,482	$32,166	$167.30	$151.59 - $178.89
Q2 2020	184,462	$32,253	$142.90	$116.56 - $161.60
Q1 2020	160,092	$22,752	$147.58	$100.67 - $165.72
Q4 2019	298,898	$53,691	$146.29	$126.07 - $157.39
Q3 2019	288,219	$45,103	$130.19	$122.69 - $138.62
Q2 2019	303,143	$45,717	$128.58	$116.59 - $135.13
Q1 2019	319,164	$45,810	$117.01	$103.65 - $124.26
Q4 2018	298,497	$37,817	$110.50	$98.77 - $121.67
Q3 2018	323,177	$45,607	$117.42	$111.99 - $124.25
Q2 2018	327,078	$45,313	$122.64	$114.08 - $132.71
Q1 2018	298,975	$46,837	$136.85	$126.80 - $147.59
Q4 2017	311,274	$51,936	$130.85	$121.38 - $139.21
Q3 2017	310,341	$45,918	$116.05	$110.22 - $121.46
Q2 2017	261,645	$37,481	$113.32	$105.74 - $122.08
Q1 2017	196,355	$26,011	$104.58	$97.05 - $109.96
Q4 2016	149,806	$18,345	$97.16	$89.66 - $102.92
Q3 2016	178,199	$21,355	$92.87	$82.44 - $98.77
Q2 2016	185,519	$19,324	$83.28	$78.19 - $87.12
Q1 2016	201,779	$20,670	$73.25	$62.61 - $81.90
Q4 2015	210,619	$19,520	$71.40	$63.03 - $74.70
Q3 2015	223,509	$18,397	$68.35	$61.54 - $73.68
Q2 2015	229,679	$21,082	$73.98	$71.31 - $77.64
Q1 2015	245,719	$23,869	$74.54	$69.91 - $77.42
Q4 2014	252,449	$23,907	$70.08	$60.82 - $75.22
Q3 2014	231,343	$19,530	$66.18	$62.50 - $68.52
Q2 2014	229,653	$20,108	$65.43	$61.51 - $68.13
Q1 2014	250,693	$20,389	$61.28	$57.74 - $63.70
Q4 2013	265,663	$22,337	$59.45	$55.46 - $63.85
Q3 2013	273,743	$20,878	$54.78	$51.08 - $58.87
Q2 2013	347,463	$24,034	$49.85	$44.73 - $53.46