NORTHERN TR CORP

Ticker: NTRS CUSIP: 665859104 Class: COM

North Star Investment Management Corp.'s Holding History (CIK: 0001342857)

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

Q4 2025

Shares 18,510 Value ($000) $2,528 Avg Close $130.74 Range $120.39 - $141.25

Q3 2025

Shares 18,006 Value ($000) $2,424 Avg Close $127.35 Range $117.54 - $134.67

Q2 2025

Shares 18,005 Value ($000) $2,283 Avg Close $100.50 Range $80.06 - $125.55

Q1 2025

Shares 18,004 Value ($000) $1,776 Avg Close $103.45 Range $93.23 - $111.60

Q4 2024

Shares 18,004 Value ($000) $1,845 Avg Close $99.01 Range $84.76 - $108.13

Q3 2024

Shares 18,003 Value ($000) $1,621 Avg Close $84.00 Range $77.46 - $89.72

Q2 2024

Shares 17,918 Value ($000) $1,505 Avg Close $79.92 Range $75.34 - $84.71

Q1 2024

Shares 19,568 Value ($000) $1,740 Avg Close $77.38 Range $72.15 - $84.77

Q4 2023

Shares 19,068 Value ($000) $1,609 Avg Close $69.13 Range $58.21 - $81.80

Q3 2023

Shares 19,075 Value ($000) $1,325 Avg Close $69.90 Range $63.24 - $76.10

Q2 2023

Shares 19,525 Value ($000) $1,448 Avg Close $70.33 Range $63.56 - $82.80

Q1 2023

Shares 19,525 Value ($000) $1,721 Avg Close $84.16 Range $73.69 - $90.89

Q4 2022

Shares 19,549 Value ($000) $1,730 Avg Close $78.90 Range $68.45 - $85.44

Q3 2022

Shares 19,542 Value ($000) $1,672 Avg Close $86.27 Range $75.57 - $93.27

Q2 2022

Shares 19,542 Value ($000) $1,885 Avg Close $93.79 Range $79.99 - $104.77

Q1 2022

Shares 19,542 Value ($000) $2,276 Avg Close $104.54 Range $90.15 - $118.99

Q4 2021

Shares 19,542 Value ($000) $2,337 Avg Close $105.01 Range $93.28 - $110.92

Q3 2021

Shares 17,736 Value ($000) $1,912 Avg Close $98.91 Range $91.25 - $105.90

Q2 2021

Shares 17,736 Value ($000) $2,051 Avg Close $99.29 Range $88.58 - $106.46

Q1 2021

Shares 19,542 Value ($000) $2,054 Avg Close $84.43 Range $75.75 - $93.36

Q4 2020

Shares 19,542 Value ($000) $1,820 Avg Close $75.32 Range $64.54 - $84.00

Q3 2020

Shares 20,542 Value ($000) $1,602 Avg Close $67.99 Range $61.38 - $73.22

Q2 2020

Shares 20,542 Value ($000) $1,630 Avg Close $66.60 Range $56.52 - $77.90

Q1 2020

Shares 25,552 Value ($000) $1,928 Avg Close $76.24 Range $50.86 - $91.21

Q4 2019

Shares 23,929 Value ($000) $2,542 Avg Close $84.53 Range $70.73 - $91.70

Q3 2019

Shares 23,929 Value ($000) $2,233 Avg Close $75.31 Range $68.73 - $82.36

Q2 2019

Shares 18,919 Value ($000) $1,703 Avg Close $75.01 Range $68.81 - $81.17

Q1 2019

Shares 18,919 Value ($000) $1,710 Avg Close $72.96 Range $66.04 - $78.80

Q4 2018

Shares 20,524 Value ($000) $1,716 Avg Close $75.32 Range $61.37 - $86.09

Q3 2018

Shares 18,774 Value ($000) $1,917 Avg Close $85.59 Range $81.23 - $92.33

Q2 2018

Shares 17,929 Value ($000) $1,845 Avg Close $84.33 Range $79.47 - $87.26

Q1 2018

Shares 17,929 Value ($000) $1,849 Avg Close $82.97 Range $74.79 - $88.15

Q4 2017

Shares 18,079 Value ($000) $1,806 Avg Close $75.28 Range $71.84 - $80.39

Q3 2017

Shares 12,667 Value ($000) $1,164 Avg Close $71.05 Range $67.61 - $77.97

Q2 2017

Shares 12,667 Value ($000) $1,231 Avg Close $70.42 Range $66.40 - $77.52

Q1 2017

Shares 12,667 Value ($000) $1,097 Avg Close $67.79 Range $63.77 - $70.95

Q4 2016

Shares 12,667 Value ($000) $1,128 Avg Close $61.69 Range $52.36 - $70.81

Q3 2016

Shares 1,820 Value ($000) $124 Avg Close $52.45 Range $47.67 - $55.52

Q2 2016

Shares 1,820 Value ($000) $121 Avg Close $53.49 Range $47.26 - $57.41

Q1 2016

Shares 1,820 Value ($000) $119 Avg Close $47.88 Range $41.46 - $54.24

Q4 2015

Shares 1,820 Value ($000) $131 Avg Close $54.64 Range $49.15 - $57.77

Q3 2015

Shares 3,820 Value ($000) $260 Avg Close $55.52 Range $49.19 - $59.82

Q2 2015

Shares 1,820 Value ($000) $139 Avg Close $56.07 Range $51.74 - $59.54

Q1 2015

Shares 1,820 Value ($000) $127 Avg Close $51.14 Range $45.68 - $54.62

Q4 2014

Shares 2,370 Value ($000) $160 Avg Close $49.58 Range $45.22 - $51.59

Q3 2014

Shares 2,370 Value ($000) $161 Avg Close $49.84 Range $46.73 - $52.70

Q2 2014

Shares 2,566 Value ($000) $165 Avg Close $45.46 Range $42.93 - $48.59

Q1 2014

Shares 2,566 Value ($000) $168 Avg Close $45.55 Range $42.73 - $49.47

Q2 2013

Shares 3,815 Value ($000) $221 Avg Close $40.35 Range $37.41 - $42.83

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	18,510	$2,528	$130.74	$120.39 - $141.25
Q3 2025	18,006	$2,424	$127.35	$117.54 - $134.67
Q2 2025	18,005	$2,283	$100.50	$80.06 - $125.55
Q1 2025	18,004	$1,776	$103.45	$93.23 - $111.60
Q4 2024	18,004	$1,845	$99.01	$84.76 - $108.13
Q3 2024	18,003	$1,621	$84.00	$77.46 - $89.72
Q2 2024	17,918	$1,505	$79.92	$75.34 - $84.71
Q1 2024	19,568	$1,740	$77.38	$72.15 - $84.77
Q4 2023	19,068	$1,609	$69.13	$58.21 - $81.80
Q3 2023	19,075	$1,325	$69.90	$63.24 - $76.10
Q2 2023	19,525	$1,448	$70.33	$63.56 - $82.80
Q1 2023	19,525	$1,721	$84.16	$73.69 - $90.89
Q4 2022	19,549	$1,730	$78.90	$68.45 - $85.44
Q3 2022	19,542	$1,672	$86.27	$75.57 - $93.27
Q2 2022	19,542	$1,885	$93.79	$79.99 - $104.77
Q1 2022	19,542	$2,276	$104.54	$90.15 - $118.99
Q4 2021	19,542	$2,337	$105.01	$93.28 - $110.92
Q3 2021	17,736	$1,912	$98.91	$91.25 - $105.90
Q2 2021	17,736	$2,051	$99.29	$88.58 - $106.46
Q1 2021	19,542	$2,054	$84.43	$75.75 - $93.36
Q4 2020	19,542	$1,820	$75.32	$64.54 - $84.00
Q3 2020	20,542	$1,602	$67.99	$61.38 - $73.22
Q2 2020	20,542	$1,630	$66.60	$56.52 - $77.90
Q1 2020	25,552	$1,928	$76.24	$50.86 - $91.21
Q4 2019	23,929	$2,542	$84.53	$70.73 - $91.70
Q3 2019	23,929	$2,233	$75.31	$68.73 - $82.36
Q2 2019	18,919	$1,703	$75.01	$68.81 - $81.17
Q1 2019	18,919	$1,710	$72.96	$66.04 - $78.80
Q4 2018	20,524	$1,716	$75.32	$61.37 - $86.09
Q3 2018	18,774	$1,917	$85.59	$81.23 - $92.33
Q2 2018	17,929	$1,845	$84.33	$79.47 - $87.26
Q1 2018	17,929	$1,849	$82.97	$74.79 - $88.15
Q4 2017	18,079	$1,806	$75.28	$71.84 - $80.39
Q3 2017	12,667	$1,164	$71.05	$67.61 - $77.97
Q2 2017	12,667	$1,231	$70.42	$66.40 - $77.52
Q1 2017	12,667	$1,097	$67.79	$63.77 - $70.95
Q4 2016	12,667	$1,128	$61.69	$52.36 - $70.81
Q3 2016	1,820	$124	$52.45	$47.67 - $55.52
Q2 2016	1,820	$121	$53.49	$47.26 - $57.41
Q1 2016	1,820	$119	$47.88	$41.46 - $54.24
Q4 2015	1,820	$131	$54.64	$49.15 - $57.77
Q3 2015	3,820	$260	$55.52	$49.19 - $59.82
Q2 2015	1,820	$139	$56.07	$51.74 - $59.54
Q1 2015	1,820	$127	$51.14	$45.68 - $54.62
Q4 2014	2,370	$160	$49.58	$45.22 - $51.59
Q3 2014	2,370	$161	$49.84	$46.73 - $52.70
Q2 2014	2,566	$165	$45.46	$42.93 - $48.59
Q1 2014	2,566	$168	$45.55	$42.73 - $49.47
Q2 2013	3,815	$221	$40.35	$37.41 - $42.83