NORTHERN TR CORP

Ticker: NTRS CUSIP: 665859104 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q4 2025

Shares 43,990 Value ($000) $6,009 Avg Close $130.74 Range $120.39 - $141.25

Q3 2025

Shares 45,922 Value ($000) $6,181 Avg Close $127.35 Range $117.54 - $134.67

Q2 2025

Shares 47,712 Value ($000) $6,049 Avg Close $100.50 Range $80.06 - $125.55

Q1 2025

Shares 44,816 Value ($000) $4,421 Avg Close $103.45 Range $93.23 - $111.60

Q4 2024

Shares 42,147 Value ($000) $4,320 Avg Close $99.01 Range $84.76 - $108.13

Q3 2024

Shares 43,895 Value ($000) $3,952 Avg Close $84.00 Range $77.46 - $89.72

Q2 2024

Shares 44,939 Value ($000) $3,774 Avg Close $79.92 Range $75.34 - $84.71

Q1 2024

Shares 45,031 Value ($000) $4,004 Avg Close $77.38 Range $72.15 - $84.77

Q4 2023

Shares 45,338 Value ($000) $3,826 Avg Close $69.13 Range $58.21 - $81.80

Q3 2023

Shares 41,622 Value ($000) $2,892 Avg Close $69.90 Range $63.24 - $76.10

Q2 2023

Shares 36,336 Value ($000) $2,694 Avg Close $70.33 Range $63.56 - $82.80

Q1 2023

Shares 35,334 Value ($000) $3,114 Avg Close $84.16 Range $73.69 - $90.89

Q4 2022

Shares 35,229 Value ($000) $3 Avg Close $78.90 Range $68.45 - $85.44

Q3 2022

Shares 30,481 Value ($000) $2,608 Avg Close $86.27 Range $75.57 - $93.27

Q2 2022

Shares 30,340 Value ($000) $2,927 Avg Close $93.79 Range $79.99 - $104.77

Q1 2022

Shares 27,799 Value ($000) $3,237 Avg Close $104.54 Range $90.15 - $118.99

Q4 2021

Shares 26,065 Value ($000) $3,118 Avg Close $105.01 Range $93.28 - $110.92

Q3 2021

Shares 26,115 Value ($000) $2,815 Avg Close $98.91 Range $91.25 - $105.90

Q2 2021

Shares 26,078 Value ($000) $3,015 Avg Close $99.29 Range $88.58 - $106.46

Q1 2021

Shares 26,053 Value ($000) $2,738 Avg Close $84.43 Range $75.75 - $93.36

Q4 2020

Shares 26,005 Value ($000) $2,422 Avg Close $75.32 Range $64.54 - $84.00

Q3 2020

Shares 19,281 Value ($000) $1,503 Avg Close $67.99 Range $61.38 - $73.22

Q2 2020

Shares 11,897 Value ($000) $944 Avg Close $66.60 Range $56.52 - $77.90

Q1 2020

Shares 13,537 Value ($000) $1,022 Avg Close $76.24 Range $50.86 - $91.21

Q4 2019

Shares 13,644 Value ($000) $1,450 Avg Close $84.53 Range $70.73 - $91.70

Q3 2019

Shares 13,770 Value ($000) $1,285 Avg Close $75.31 Range $68.73 - $82.36

Q2 2019

Shares 12,779 Value ($000) $1,150 Avg Close $75.01 Range $68.81 - $81.17

Q1 2019

Shares 12,769 Value ($000) $1,154 Avg Close $72.96 Range $66.04 - $78.80

Q4 2018

Shares 12,078 Value ($000) $1,010 Avg Close $75.32 Range $61.37 - $86.09

Q3 2018

Shares 18,323 Value ($000) $1,871 Avg Close $85.59 Range $81.23 - $92.33

Q2 2018

Shares 22,139 Value ($000) $2,278 Avg Close $84.33 Range $79.47 - $87.26

Q1 2018

Shares 19,037 Value ($000) $1,963 Avg Close $82.97 Range $74.79 - $88.15

Q4 2017

Shares 19,211 Value ($000) $1,919 Avg Close $75.28 Range $71.84 - $80.39

Q3 2017

Shares 17,467 Value ($000) $1,606 Avg Close $71.05 Range $67.61 - $77.97

Q2 2017

Shares 16,033 Value ($000) $1,559 Avg Close $70.42 Range $66.40 - $77.52

Q1 2017

Shares 15,953 Value ($000) $1,381 Avg Close $67.79 Range $63.77 - $70.95

Q4 2016

Shares 12,201 Value ($000) $1,086 Avg Close $61.69 Range $52.36 - $70.81

Q3 2016

Shares 12,165 Value ($000) $827 Avg Close $52.45 Range $47.67 - $55.52

Q2 2016

Shares 17,172 Value ($000) $1,138 Avg Close $53.49 Range $47.26 - $57.41

Q1 2016

Shares 15,973 Value ($000) $1,041 Avg Close $47.88 Range $41.46 - $54.24

Q4 2015

Shares 14,200 Value ($000) $1,024 Avg Close $54.64 Range $49.15 - $57.77

Q3 2015

Shares 14,063 Value ($000) $959 Avg Close $55.52 Range $49.19 - $59.82

Q2 2015

Shares 24,633 Value ($000) $1,883 Avg Close $56.07 Range $51.74 - $59.54

Q1 2015

Shares 25,179 Value ($000) $1,754 Avg Close $51.14 Range $45.68 - $54.62

Q4 2014

Shares 40,392 Value ($000) $2,722 Avg Close $49.58 Range $45.22 - $51.59

Q3 2014

Shares 40,613 Value ($000) $2,763 Avg Close $49.84 Range $46.73 - $52.70

Q2 2014

Shares 40,713 Value ($000) $2,614 Avg Close $45.46 Range $42.93 - $48.59

Q1 2014

Shares 42,738 Value ($000) $2,802 Avg Close $45.55 Range $42.73 - $49.47

Q4 2013

Shares 42,878 Value ($000) $2,654 Avg Close $41.82 Range $38.19 - $45.43

Q3 2013

Shares 46,101 Value ($000) $2,507 Avg Close $41.67 Range $39.30 - $44.95

Q2 2013

Shares 44,330 Value ($000) $2,567 Avg Close $40.35 Range $37.41 - $42.83

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	43,990	$6,009	$130.74	$120.39 - $141.25
Q3 2025	45,922	$6,181	$127.35	$117.54 - $134.67
Q2 2025	47,712	$6,049	$100.50	$80.06 - $125.55
Q1 2025	44,816	$4,421	$103.45	$93.23 - $111.60
Q4 2024	42,147	$4,320	$99.01	$84.76 - $108.13
Q3 2024	43,895	$3,952	$84.00	$77.46 - $89.72
Q2 2024	44,939	$3,774	$79.92	$75.34 - $84.71
Q1 2024	45,031	$4,004	$77.38	$72.15 - $84.77
Q4 2023	45,338	$3,826	$69.13	$58.21 - $81.80
Q3 2023	41,622	$2,892	$69.90	$63.24 - $76.10
Q2 2023	36,336	$2,694	$70.33	$63.56 - $82.80
Q1 2023	35,334	$3,114	$84.16	$73.69 - $90.89
Q4 2022	35,229	$3	$78.90	$68.45 - $85.44
Q3 2022	30,481	$2,608	$86.27	$75.57 - $93.27
Q2 2022	30,340	$2,927	$93.79	$79.99 - $104.77
Q1 2022	27,799	$3,237	$104.54	$90.15 - $118.99
Q4 2021	26,065	$3,118	$105.01	$93.28 - $110.92
Q3 2021	26,115	$2,815	$98.91	$91.25 - $105.90
Q2 2021	26,078	$3,015	$99.29	$88.58 - $106.46
Q1 2021	26,053	$2,738	$84.43	$75.75 - $93.36
Q4 2020	26,005	$2,422	$75.32	$64.54 - $84.00
Q3 2020	19,281	$1,503	$67.99	$61.38 - $73.22
Q2 2020	11,897	$944	$66.60	$56.52 - $77.90
Q1 2020	13,537	$1,022	$76.24	$50.86 - $91.21
Q4 2019	13,644	$1,450	$84.53	$70.73 - $91.70
Q3 2019	13,770	$1,285	$75.31	$68.73 - $82.36
Q2 2019	12,779	$1,150	$75.01	$68.81 - $81.17
Q1 2019	12,769	$1,154	$72.96	$66.04 - $78.80
Q4 2018	12,078	$1,010	$75.32	$61.37 - $86.09
Q3 2018	18,323	$1,871	$85.59	$81.23 - $92.33
Q2 2018	22,139	$2,278	$84.33	$79.47 - $87.26
Q1 2018	19,037	$1,963	$82.97	$74.79 - $88.15
Q4 2017	19,211	$1,919	$75.28	$71.84 - $80.39
Q3 2017	17,467	$1,606	$71.05	$67.61 - $77.97
Q2 2017	16,033	$1,559	$70.42	$66.40 - $77.52
Q1 2017	15,953	$1,381	$67.79	$63.77 - $70.95
Q4 2016	12,201	$1,086	$61.69	$52.36 - $70.81
Q3 2016	12,165	$827	$52.45	$47.67 - $55.52
Q2 2016	17,172	$1,138	$53.49	$47.26 - $57.41
Q1 2016	15,973	$1,041	$47.88	$41.46 - $54.24
Q4 2015	14,200	$1,024	$54.64	$49.15 - $57.77
Q3 2015	14,063	$959	$55.52	$49.19 - $59.82
Q2 2015	24,633	$1,883	$56.07	$51.74 - $59.54
Q1 2015	25,179	$1,754	$51.14	$45.68 - $54.62
Q4 2014	40,392	$2,722	$49.58	$45.22 - $51.59
Q3 2014	40,613	$2,763	$49.84	$46.73 - $52.70
Q2 2014	40,713	$2,614	$45.46	$42.93 - $48.59
Q1 2014	42,738	$2,802	$45.55	$42.73 - $49.47
Q4 2013	42,878	$2,654	$41.82	$38.19 - $45.43
Q3 2013	46,101	$2,507	$41.67	$39.30 - $44.95
Q2 2013	44,330	$2,567	$40.35	$37.41 - $42.83