NORTHERN TR CORP

Ticker: NTRS CUSIP: 665859104 Class: COM

GREAT LAKES ADVISORS, LLC's Holding History (CIK: 0001078013)

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

Q4 2025

Shares 32,608 Value ($000) $4,454 Avg Close $130.74 Range $120.39 - $141.25

Q3 2025

Shares 31,936 Value ($000) $4,299 Avg Close $127.35 Range $117.54 - $134.67

Q2 2025

Shares 35,488 Value ($000) $4,500 Avg Close $100.50 Range $80.06 - $125.55

Q1 2025

Shares 31,868 Value ($000) $3,144 Avg Close $103.45 Range $93.23 - $111.60

Q4 2024

Shares 31,982 Value ($000) $3,278 Avg Close $99.01 Range $84.76 - $108.13

Q3 2024

Shares 31,986 Value ($000) $2,880 Avg Close $84.00 Range $77.46 - $89.72

Q2 2024

Shares 32,023 Value ($000) $2,689 Avg Close $79.92 Range $75.34 - $84.71

Q1 2024

Shares 32,022 Value ($000) $2,847 Avg Close $77.38 Range $72.15 - $84.77

Q4 2023

Shares 40,507 Value ($000) $3,418 Avg Close $69.13 Range $58.21 - $81.80

Q3 2023

Shares 30,073 Value ($000) $2,089 Avg Close $69.90 Range $63.24 - $76.10

Q1 2023

Shares 2,881 Value ($000) $254 Avg Close $84.16 Range $73.69 - $90.89

Q2 2022

Shares 2,361 Value ($000) $228 Avg Close $93.79 Range $79.99 - $104.77

Q1 2022

Shares 10,090 Value ($000) $1,175 Avg Close $104.54 Range $90.15 - $118.99

Q1 2019

Shares 6,367 Value ($000) $576 Avg Close $72.96 Range $66.04 - $78.80

Q4 2018

Shares 7,301 Value ($000) $610 Avg Close $75.32 Range $61.37 - $86.09

Q3 2018

Shares 9,172 Value ($000) $937 Avg Close $85.59 Range $81.23 - $92.33

Q2 2018

Shares 9,616 Value ($000) $989 Avg Close $84.33 Range $79.47 - $87.26

Q1 2018

Shares 11,382 Value ($000) $1,174 Avg Close $82.97 Range $74.79 - $88.15

Q4 2017

Shares 9,547 Value ($000) $954 Avg Close $75.28 Range $71.84 - $80.39

Q4 2015

Shares 16,237 Value ($000) $1,171 Avg Close $54.64 Range $49.15 - $57.77

Q3 2015

Shares 15,593 Value ($000) $1,063 Avg Close $55.52 Range $49.19 - $59.82

Q2 2015

Shares 13,461 Value ($000) $1,029 Avg Close $56.07 Range $51.74 - $59.54

Q1 2015

Shares 13,812 Value ($000) $962 Avg Close $51.14 Range $45.68 - $54.62

Q2 2014

Shares 4,523 Value ($000) $290 Avg Close $45.46 Range $42.93 - $48.59

Q1 2014

Shares 4,722 Value ($000) $310 Avg Close $45.55 Range $42.73 - $49.47

Q4 2013

Shares 5,422 Value ($000) $336 Avg Close $41.82 Range $38.19 - $45.43

Q3 2013

Shares 6,568 Value ($000) $357 Avg Close $41.67 Range $39.30 - $44.95

Q2 2013

Shares 6,091 Value ($000) $353 Avg Close $40.35 Range $37.41 - $42.83

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	32,608	$4,454	$130.74	$120.39 - $141.25
Q3 2025	31,936	$4,299	$127.35	$117.54 - $134.67
Q2 2025	35,488	$4,500	$100.50	$80.06 - $125.55
Q1 2025	31,868	$3,144	$103.45	$93.23 - $111.60
Q4 2024	31,982	$3,278	$99.01	$84.76 - $108.13
Q3 2024	31,986	$2,880	$84.00	$77.46 - $89.72
Q2 2024	32,023	$2,689	$79.92	$75.34 - $84.71
Q1 2024	32,022	$2,847	$77.38	$72.15 - $84.77
Q4 2023	40,507	$3,418	$69.13	$58.21 - $81.80
Q3 2023	30,073	$2,089	$69.90	$63.24 - $76.10
Q1 2023	2,881	$254	$84.16	$73.69 - $90.89
Q2 2022	2,361	$228	$93.79	$79.99 - $104.77
Q1 2022	10,090	$1,175	$104.54	$90.15 - $118.99
Q1 2019	6,367	$576	$72.96	$66.04 - $78.80
Q4 2018	7,301	$610	$75.32	$61.37 - $86.09
Q3 2018	9,172	$937	$85.59	$81.23 - $92.33
Q2 2018	9,616	$989	$84.33	$79.47 - $87.26
Q1 2018	11,382	$1,174	$82.97	$74.79 - $88.15
Q4 2017	9,547	$954	$75.28	$71.84 - $80.39
Q4 2015	16,237	$1,171	$54.64	$49.15 - $57.77
Q3 2015	15,593	$1,063	$55.52	$49.19 - $59.82
Q2 2015	13,461	$1,029	$56.07	$51.74 - $59.54
Q1 2015	13,812	$962	$51.14	$45.68 - $54.62
Q2 2014	4,523	$290	$45.46	$42.93 - $48.59
Q1 2014	4,722	$310	$45.55	$42.73 - $49.47
Q4 2013	5,422	$336	$41.82	$38.19 - $45.43
Q3 2013	6,568	$357	$41.67	$39.30 - $44.95
Q2 2013	6,091	$353	$40.35	$37.41 - $42.83