NORTHERN TR CORP

Ticker: NTRS CUSIP: 665859104 Class: COM

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

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

Q4 2025

Shares 114,737 Value ($000) $15,672 Avg Close $130.74 Range $120.39 - $141.25

Q3 2025

Shares 120,425 Value ($000) $16,209 Avg Close $127.35 Range $117.54 - $134.67

Q2 2025

Shares 103,112 Value ($000) $13,074 Avg Close $100.50 Range $80.06 - $125.55

Q1 2025

Shares 139,425 Value ($000) $13,754 Avg Close $103.45 Range $93.23 - $111.60

Q4 2024

Shares 112,629 Value ($000) $11,544 Avg Close $99.01 Range $84.76 - $108.13

Q3 2024

Shares 126,879 Value ($000) $11,423 Avg Close $84.00 Range $77.46 - $89.72

Q2 2024

Shares 119,982 Value ($000) $10,076 Avg Close $79.92 Range $75.34 - $84.71

Q1 2024

Shares 122,341 Value ($000) $10,879 Avg Close $77.38 Range $72.15 - $84.77

Q4 2023

Shares 121,251 Value ($000) $10,231 Avg Close $69.13 Range $58.21 - $81.80

Q3 2023

Shares 110,855 Value ($000) $7,702 Avg Close $69.90 Range $63.24 - $76.10

Q2 2023

Shares 110,319 Value ($000) $8,179 Avg Close $70.33 Range $63.56 - $82.80

Q1 2023

Shares 104,957 Value ($000) $9,250 Avg Close $84.16 Range $73.69 - $90.89

Q4 2022

Shares 100,325 Value ($000) $8,878 Avg Close $78.90 Range $68.45 - $85.44

Q3 2022

Shares 112,760 Value ($000) $9,648 Avg Close $86.27 Range $75.57 - $93.27

Q2 2022

Shares 139,273 Value ($000) $13,437 Avg Close $93.79 Range $79.99 - $104.77

Q1 2022

Shares 144,447 Value ($000) $16,821 Avg Close $104.54 Range $90.15 - $118.99

Q4 2021

Shares 94,254 Value ($000) $11,274 Avg Close $105.01 Range $93.28 - $110.92

Q3 2021

Shares 95,869 Value ($000) $10,336 Avg Close $98.91 Range $91.25 - $105.90

Q2 2021

Shares 89,421 Value ($000) $10,339 Avg Close $99.29 Range $88.58 - $106.46

Q1 2021

Shares 91,013 Value ($000) $9,566 Avg Close $84.43 Range $75.75 - $93.36

Q4 2020

Shares 94,045 Value ($000) $8,759 Avg Close $75.32 Range $64.54 - $84.00

Q3 2020

Shares 103,455 Value ($000) $8,066 Avg Close $67.99 Range $61.38 - $73.22

Q2 2020

Shares 103,455 Value ($000) $8,208 Avg Close $66.60 Range $56.52 - $77.90

Q1 2020

Shares 96,425 Value ($000) $7,276 Avg Close $76.24 Range $50.86 - $91.21

Q4 2019

Shares 145,302 Value ($000) $15,437 Avg Close $84.53 Range $70.73 - $91.70

Q3 2019

Shares 14,823 Value ($000) $1,383 Avg Close $75.31 Range $68.73 - $82.36

Q2 2019

Shares 38,438 Value ($000) $3,459 Avg Close $75.01 Range $68.81 - $81.17

Q1 2019

Shares 149,453 Value ($000) $13,512 Avg Close $72.96 Range $66.04 - $78.80

Q4 2018

Shares 209,850 Value ($000) $17,541 Avg Close $75.32 Range $61.37 - $86.09

Q3 2018

Shares 222,930 Value ($000) $22,768 Avg Close $85.59 Range $81.23 - $92.33

Q2 2018

Shares 142,362 Value ($000) $14,648 Avg Close $84.33 Range $79.47 - $87.26

Q1 2018

Shares 97,094 Value ($000) $10,013 Avg Close $82.97 Range $74.79 - $88.15

Q4 2017

Shares 124,734 Value ($000) $12,460 Avg Close $75.28 Range $71.84 - $80.39

Q3 2017

Shares 125,386 Value ($000) $11,527 Avg Close $71.05 Range $67.61 - $77.97

Q2 2017

Shares 113,027 Value ($000) $10,987 Avg Close $70.42 Range $66.40 - $77.52

Q1 2017

Shares 87,237 Value ($000) $7,553 Avg Close $67.79 Range $63.77 - $70.95

Q4 2016

Shares 39,993 Value ($000) $3,561 Avg Close $61.69 Range $52.36 - $70.81

Q3 2016

Shares 28,362 Value ($000) $1,928 Avg Close $52.45 Range $47.67 - $55.52

Q2 2016

Shares 33,862 Value ($000) $2,244 Avg Close $53.49 Range $47.26 - $57.41

Q1 2016

Shares 67,262 Value ($000) $4,383 Avg Close $47.88 Range $41.46 - $54.24

Q4 2015

Shares 73,432 Value ($000) $5,294 Avg Close $54.64 Range $49.15 - $57.77

Q3 2015

Shares 59,272 Value ($000) $4,040 Avg Close $55.52 Range $49.19 - $59.82

Q2 2015

Shares 39,112 Value ($000) $2,991 Avg Close $56.07 Range $51.74 - $59.54

Q1 2015

Shares 39,562 Value ($000) $2,755 Avg Close $51.14 Range $45.68 - $54.62

Q4 2014

Shares 44,482 Value ($000) $2,998 Avg Close $49.58 Range $45.22 - $51.59

Q3 2014

Shares 33,952 Value ($000) $2,310 Avg Close $49.84 Range $46.73 - $52.70

Q2 2014

Shares 92,782 Value ($000) $5,958 Avg Close $45.46 Range $42.93 - $48.59

Q1 2014

Shares 171,012 Value ($000) $11,212 Avg Close $45.55 Range $42.73 - $49.47

Q4 2013

Shares 170,782 Value ($000) $10,570 Avg Close $41.82 Range $38.19 - $45.43

Q3 2013

Shares 175,922 Value ($000) $9,568 Avg Close $41.67 Range $39.30 - $44.95

Q2 2013

Shares 189,552 Value ($000) $10,975 Avg Close $40.35 Range $37.41 - $42.83

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	114,737	$15,672	$130.74	$120.39 - $141.25
Q3 2025	120,425	$16,209	$127.35	$117.54 - $134.67
Q2 2025	103,112	$13,074	$100.50	$80.06 - $125.55
Q1 2025	139,425	$13,754	$103.45	$93.23 - $111.60
Q4 2024	112,629	$11,544	$99.01	$84.76 - $108.13
Q3 2024	126,879	$11,423	$84.00	$77.46 - $89.72
Q2 2024	119,982	$10,076	$79.92	$75.34 - $84.71
Q1 2024	122,341	$10,879	$77.38	$72.15 - $84.77
Q4 2023	121,251	$10,231	$69.13	$58.21 - $81.80
Q3 2023	110,855	$7,702	$69.90	$63.24 - $76.10
Q2 2023	110,319	$8,179	$70.33	$63.56 - $82.80
Q1 2023	104,957	$9,250	$84.16	$73.69 - $90.89
Q4 2022	100,325	$8,878	$78.90	$68.45 - $85.44
Q3 2022	112,760	$9,648	$86.27	$75.57 - $93.27
Q2 2022	139,273	$13,437	$93.79	$79.99 - $104.77
Q1 2022	144,447	$16,821	$104.54	$90.15 - $118.99
Q4 2021	94,254	$11,274	$105.01	$93.28 - $110.92
Q3 2021	95,869	$10,336	$98.91	$91.25 - $105.90
Q2 2021	89,421	$10,339	$99.29	$88.58 - $106.46
Q1 2021	91,013	$9,566	$84.43	$75.75 - $93.36
Q4 2020	94,045	$8,759	$75.32	$64.54 - $84.00
Q3 2020	103,455	$8,066	$67.99	$61.38 - $73.22
Q2 2020	103,455	$8,208	$66.60	$56.52 - $77.90
Q1 2020	96,425	$7,276	$76.24	$50.86 - $91.21
Q4 2019	145,302	$15,437	$84.53	$70.73 - $91.70
Q3 2019	14,823	$1,383	$75.31	$68.73 - $82.36
Q2 2019	38,438	$3,459	$75.01	$68.81 - $81.17
Q1 2019	149,453	$13,512	$72.96	$66.04 - $78.80
Q4 2018	209,850	$17,541	$75.32	$61.37 - $86.09
Q3 2018	222,930	$22,768	$85.59	$81.23 - $92.33
Q2 2018	142,362	$14,648	$84.33	$79.47 - $87.26
Q1 2018	97,094	$10,013	$82.97	$74.79 - $88.15
Q4 2017	124,734	$12,460	$75.28	$71.84 - $80.39
Q3 2017	125,386	$11,527	$71.05	$67.61 - $77.97
Q2 2017	113,027	$10,987	$70.42	$66.40 - $77.52
Q1 2017	87,237	$7,553	$67.79	$63.77 - $70.95
Q4 2016	39,993	$3,561	$61.69	$52.36 - $70.81
Q3 2016	28,362	$1,928	$52.45	$47.67 - $55.52
Q2 2016	33,862	$2,244	$53.49	$47.26 - $57.41
Q1 2016	67,262	$4,383	$47.88	$41.46 - $54.24
Q4 2015	73,432	$5,294	$54.64	$49.15 - $57.77
Q3 2015	59,272	$4,040	$55.52	$49.19 - $59.82
Q2 2015	39,112	$2,991	$56.07	$51.74 - $59.54
Q1 2015	39,562	$2,755	$51.14	$45.68 - $54.62
Q4 2014	44,482	$2,998	$49.58	$45.22 - $51.59
Q3 2014	33,952	$2,310	$49.84	$46.73 - $52.70
Q2 2014	92,782	$5,958	$45.46	$42.93 - $48.59
Q1 2014	171,012	$11,212	$45.55	$42.73 - $49.47
Q4 2013	170,782	$10,570	$41.82	$38.19 - $45.43
Q3 2013	175,922	$9,568	$41.67	$39.30 - $44.95
Q2 2013	189,552	$10,975	$40.35	$37.41 - $42.83