NORTHERN TR CORP

Ticker: NTRS CUSIP: 665859104 Class: COM

TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY's Holding History (CIK: 0000714142)

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

Q4 2025

Shares 15,481 Value ($000) $2 Avg Close $130.74 Range $120.39 - $141.25

Q3 2025

Shares 15,481 Value ($000) $2 Avg Close $127.35 Range $117.54 - $134.67

Q2 2025

Shares 15,481 Value ($000) $2 Avg Close $100.50 Range $80.06 - $125.55

Q1 2025

Shares 15,293 Value ($000) $2 Avg Close $103.45 Range $93.23 - $111.60

Q4 2024

Shares 14,956 Value ($000) $2 Avg Close $99.01 Range $84.76 - $108.13

Q3 2024

Shares 15,232 Value ($000) $1 Avg Close $84.00 Range $77.46 - $89.72

Q2 2024

Shares 16,365 Value ($000) $1 Avg Close $79.92 Range $75.34 - $84.71

Q1 2024

Shares 16,852 Value ($000) $1 Avg Close $77.38 Range $72.15 - $84.77

Q4 2023

Shares 17,827 Value ($000) $2 Avg Close $69.13 Range $58.21 - $81.80

Q3 2023

Shares 18,756 Value ($000) $1 Avg Close $69.90 Range $63.24 - $76.10

Q2 2023

Shares 18,756 Value ($000) $1 Avg Close $70.33 Range $63.56 - $82.80

Q1 2023

Shares 19,005 Value ($000) $2 Avg Close $84.16 Range $73.69 - $90.89

Q4 2022

Shares 19,005 Value ($000) $2 Avg Close $78.90 Range $68.45 - $85.44

Q3 2022

Shares 19,005 Value ($000) $1,626 Avg Close $86.27 Range $75.57 - $93.27

Q1 2022

Shares 14,728 Value ($000) $1,715 Avg Close $104.54 Range $90.15 - $118.99

Q4 2021

Shares 15,368 Value ($000) $1,838 Avg Close $105.01 Range $93.28 - $110.92

Q3 2021

Shares 15,800 Value ($000) $1,703 Avg Close $98.91 Range $91.25 - $105.90

Q2 2021

Shares 15,800 Value ($000) $1,827 Avg Close $99.29 Range $88.58 - $106.46

Q1 2021

Shares 15,800 Value ($000) $1,661 Avg Close $84.43 Range $75.75 - $93.36

Q4 2020

Shares 17,800 Value ($000) $1,658 Avg Close $75.32 Range $64.54 - $84.00

Q3 2020

Shares 19,300 Value ($000) $1,505 Avg Close $67.99 Range $61.38 - $73.22

Q2 2020

Shares 19,300 Value ($000) $1,531 Avg Close $66.60 Range $56.52 - $77.90

Q1 2020

Shares 55,934 Value ($000) $4,221 Avg Close $76.24 Range $50.86 - $91.21

Q4 2019

Shares 57,315 Value ($000) $6,089 Avg Close $84.53 Range $70.73 - $91.70

Q3 2019

Shares 57,548 Value ($000) $5,370 Avg Close $75.31 Range $68.73 - $82.36

Q2 2019

Shares 54,848 Value ($000) $4,937 Avg Close $75.01 Range $68.81 - $81.17

Q1 2019

Shares 55,179 Value ($000) $4,989 Avg Close $72.96 Range $66.04 - $78.80

Q4 2018

Shares 54,663 Value ($000) $4,569 Avg Close $75.32 Range $61.37 - $86.09

Q3 2018

Shares 50,463 Value ($000) $5,154 Avg Close $85.59 Range $81.23 - $92.33

Q2 2018

Shares 57,274 Value ($000) $5,893 Avg Close $84.33 Range $79.47 - $87.26

Q1 2018

Shares 57,274 Value ($000) $5,907 Avg Close $82.97 Range $74.79 - $88.15

Q4 2017

Shares 60,074 Value ($000) $6,000 Avg Close $75.28 Range $71.84 - $80.39

Q3 2017

Shares 63,805 Value ($000) $5,866 Avg Close $71.05 Range $67.61 - $77.97

Q2 2017

Shares 63,805 Value ($000) $6,202 Avg Close $70.42 Range $66.40 - $77.52

Q1 2017

Shares 64,805 Value ($000) $5,611 Avg Close $67.79 Range $63.77 - $70.95

Q4 2016

Shares 69,874 Value ($000) $6,222 Avg Close $61.69 Range $52.36 - $70.81

Q3 2016

Shares 75,133 Value ($000) $5,109 Avg Close $52.45 Range $47.67 - $55.52

Q2 2016

Shares 75,133 Value ($000) $4,978 Avg Close $53.49 Range $47.26 - $57.41

Q1 2016

Shares 75,133 Value ($000) $4,896 Avg Close $47.88 Range $41.46 - $54.24

Q4 2015

Shares 75,133 Value ($000) $5,417 Avg Close $54.64 Range $49.15 - $57.77

Q3 2015

Shares 76,933 Value ($000) $5,244 Avg Close $55.52 Range $49.19 - $59.82

Q2 2015

Shares 76,933 Value ($000) $5,883 Avg Close $56.07 Range $51.74 - $59.54

Q1 2015

Shares 82,220 Value ($000) $5,727 Avg Close $51.14 Range $45.68 - $54.62

Q4 2014

Shares 74,405 Value ($000) $5,015 Avg Close $49.58 Range $45.22 - $51.59

Q3 2014

Shares 76,505 Value ($000) $5,204 Avg Close $49.84 Range $46.73 - $52.70

Q2 2014

Shares 35,800 Value ($000) $2,299 Avg Close $45.46 Range $42.93 - $48.59

Q1 2014

Shares 35,800 Value ($000) $2,347 Avg Close $45.55 Range $42.73 - $49.47

Q4 2013

Shares 38,100 Value ($000) $2,358 Avg Close $41.82 Range $38.19 - $45.43

Q3 2013

Shares 38,100 Value ($000) $2,072 Avg Close $41.67 Range $39.30 - $44.95

Q2 2013

Shares 41,100 Value ($000) $2,380 Avg Close $40.35 Range $37.41 - $42.83

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	15,481	$2	$130.74	$120.39 - $141.25
Q3 2025	15,481	$2	$127.35	$117.54 - $134.67
Q2 2025	15,481	$2	$100.50	$80.06 - $125.55
Q1 2025	15,293	$2	$103.45	$93.23 - $111.60
Q4 2024	14,956	$2	$99.01	$84.76 - $108.13
Q3 2024	15,232	$1	$84.00	$77.46 - $89.72
Q2 2024	16,365	$1	$79.92	$75.34 - $84.71
Q1 2024	16,852	$1	$77.38	$72.15 - $84.77
Q4 2023	17,827	$2	$69.13	$58.21 - $81.80
Q3 2023	18,756	$1	$69.90	$63.24 - $76.10
Q2 2023	18,756	$1	$70.33	$63.56 - $82.80
Q1 2023	19,005	$2	$84.16	$73.69 - $90.89
Q4 2022	19,005	$2	$78.90	$68.45 - $85.44
Q3 2022	19,005	$1,626	$86.27	$75.57 - $93.27
Q1 2022	14,728	$1,715	$104.54	$90.15 - $118.99
Q4 2021	15,368	$1,838	$105.01	$93.28 - $110.92
Q3 2021	15,800	$1,703	$98.91	$91.25 - $105.90
Q2 2021	15,800	$1,827	$99.29	$88.58 - $106.46
Q1 2021	15,800	$1,661	$84.43	$75.75 - $93.36
Q4 2020	17,800	$1,658	$75.32	$64.54 - $84.00
Q3 2020	19,300	$1,505	$67.99	$61.38 - $73.22
Q2 2020	19,300	$1,531	$66.60	$56.52 - $77.90
Q1 2020	55,934	$4,221	$76.24	$50.86 - $91.21
Q4 2019	57,315	$6,089	$84.53	$70.73 - $91.70
Q3 2019	57,548	$5,370	$75.31	$68.73 - $82.36
Q2 2019	54,848	$4,937	$75.01	$68.81 - $81.17
Q1 2019	55,179	$4,989	$72.96	$66.04 - $78.80
Q4 2018	54,663	$4,569	$75.32	$61.37 - $86.09
Q3 2018	50,463	$5,154	$85.59	$81.23 - $92.33
Q2 2018	57,274	$5,893	$84.33	$79.47 - $87.26
Q1 2018	57,274	$5,907	$82.97	$74.79 - $88.15
Q4 2017	60,074	$6,000	$75.28	$71.84 - $80.39
Q3 2017	63,805	$5,866	$71.05	$67.61 - $77.97
Q2 2017	63,805	$6,202	$70.42	$66.40 - $77.52
Q1 2017	64,805	$5,611	$67.79	$63.77 - $70.95
Q4 2016	69,874	$6,222	$61.69	$52.36 - $70.81
Q3 2016	75,133	$5,109	$52.45	$47.67 - $55.52
Q2 2016	75,133	$4,978	$53.49	$47.26 - $57.41
Q1 2016	75,133	$4,896	$47.88	$41.46 - $54.24
Q4 2015	75,133	$5,417	$54.64	$49.15 - $57.77
Q3 2015	76,933	$5,244	$55.52	$49.19 - $59.82
Q2 2015	76,933	$5,883	$56.07	$51.74 - $59.54
Q1 2015	82,220	$5,727	$51.14	$45.68 - $54.62
Q4 2014	74,405	$5,015	$49.58	$45.22 - $51.59
Q3 2014	76,505	$5,204	$49.84	$46.73 - $52.70
Q2 2014	35,800	$2,299	$45.46	$42.93 - $48.59
Q1 2014	35,800	$2,347	$45.55	$42.73 - $49.47
Q4 2013	38,100	$2,358	$41.82	$38.19 - $45.43
Q3 2013	38,100	$2,072	$41.67	$39.30 - $44.95
Q2 2013	41,100	$2,380	$40.35	$37.41 - $42.83