OLD SECOND BANCORP INC ILL

Ticker: OSBC CUSIP: 680277100 Class: Common Stock

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 881,576 Value ($000) $17,191 Avg Close $18.60 Range $16.53 - $20.89

Q3 2025

Shares 997,898 Value ($000) $17,249 Avg Close $17.86 Range $16.31 - $19.04

Q2 2025

Shares 414,407 Value ($000) $7,352 Avg Close $16.11 Range $13.93 - $17.67

Q1 2025

Shares 418,186 Value ($000) $6,959 Avg Close $17.63 Range $15.91 - $19.18

Q4 2024

Shares 447,145 Value ($000) $7,950 Avg Close $17.06 Range $14.47 - $19.03

Q3 2024

Shares 462,912 Value ($000) $7,217 Avg Close $15.74 Range $14.06 - $17.09

Q2 2024

Shares 613,745 Value ($000) $9,090 Avg Close $13.71 Range $12.84 - $14.63

Q1 2024

Shares 601,289 Value ($000) $8,322 Avg Close $13.58 Range $12.64 - $15.37

Q4 2023

Shares 637,662 Value ($000) $9,846 Avg Close $14.00 Range $12.63 - $16.25

Q3 2023

Shares 643,871 Value ($000) $8,763 Avg Close $14.09 Range $12.22 - $15.91

Q2 2023

Shares 640,069 Value ($000) $8,359 Avg Close $12.23 Range $10.39 - $13.76

Q1 2023

Shares 629,562 Value ($000) $8,852 Avg Close $15.28 Range $12.57 - $16.97

Q4 2022

Shares 649,054 Value ($000) $10,411 Avg Close $15.26 Range $12.30 - $17.01

Q3 2022

Shares 686,404 Value ($000) $8,958 Avg Close $13.36 Range $12.41 - $14.24

Q2 2022

Shares 718,774 Value ($000) $9,618 Avg Close $13.54 Range $12.61 - $14.88

Q1 2022

Shares 588,200 Value ($000) $8,535 Avg Close $13.24 Range $11.83 - $14.64

Q4 2021

Shares 451,471 Value ($000) $5,684 Avg Close $12.35 Range $11.26 - $13.41

Q3 2021

Shares 327,604 Value ($000) $4,278 Avg Close $11.25 Range $10.48 - $12.48

Q2 2021

Shares 322,956 Value ($000) $4,005 Avg Close $12.50 Range $11.49 - $13.51

Q1 2021

Shares 343,366 Value ($000) $4,536 Avg Close $10.96 Range $9.08 - $13.19

Q4 2020

Shares 415,104 Value ($000) $4,192 Avg Close $8.83 Range $6.86 - $10.03

Q3 2020

Shares 436,448 Value ($000) $3,271 Avg Close $7.43 Range $6.45 - $8.34

Q2 2020

Shares 452,549 Value ($000) $3,520 Avg Close $6.87 Range $5.53 - $8.52

Q1 2020

Shares 368,776 Value ($000) $2,548 Avg Close $10.20 Range $5.65 - $12.55

Q4 2019

Shares 370,672 Value ($000) $4,993 Avg Close $11.56 Range $10.85 - $12.76

Q3 2019

Shares 384,223 Value ($000) $4,695 Avg Close $11.47 Range $10.40 - $12.59

Q2 2019

Shares 362,210 Value ($000) $4,625 Avg Close $11.89 Range $10.57 - $12.61

Q1 2019

Shares 351,914 Value ($000) $4,430 Avg Close $12.79 Range $11.10 - $13.68

Q4 2018

Shares 365,595 Value ($000) $4,753 Avg Close $13.06 Range $10.45 - $14.49

Q3 2018

Shares 351,150 Value ($000) $5,425 Avg Close $14.06 Range $13.23 - $15.04

Q2 2018

Shares 355,035 Value ($000) $5,112 Avg Close $13.48 Range $12.40 - $14.39

Q1 2018

Shares 346,127 Value ($000) $4,812 Avg Close $13.11 Range $12.07 - $13.82

Q4 2017

Shares 346,429 Value ($000) $4,728 Avg Close $12.23 Range $11.19 - $13.71

Q3 2017

Shares 338,430 Value ($000) $4,552 Avg Close $10.81 Range $9.89 - $12.42

Q2 2017

Shares 339,842 Value ($000) $3,925 Avg Close $10.69 Range $10.06 - $11.72

Q1 2017

Shares 336,110 Value ($000) $3,782 Avg Close $9.89 Range $8.86 - $10.57

Q4 2016

Shares 316,472 Value ($000) $3,497 Avg Close $8.31 Range $6.83 - $10.68

Q3 2016

Shares 312,753 Value ($000) $2,599 Avg Close $7.02 Range $6.11 - $7.93

Q2 2016

Shares 290,390 Value ($000) $1,984 Avg Close $6.49 Range $5.83 - $6.90

Q1 2016

Shares 282,599 Value ($000) $2,026 Avg Close $6.30 Range $5.69 - $7.11

Q4 2015

Shares 275,142 Value ($000) $2,157 Avg Close $6.59 Range $5.47 - $7.44

Q3 2015

Shares 269,772 Value ($000) $1,681 Avg Close $5.78 Range $5.42 - $6.21

Q2 2015

Shares 56,059 Value ($000) $370 Avg Close $5.54 Range $4.96 - $6.36

Q1 2015

Shares 35,149 Value ($000) $201 Avg Close $4.98 Range $4.63 - $5.35

Q4 2014

Shares 34,834 Value ($000) $187 Avg Close $4.45 Range $4.09 - $4.98

Q3 2014

Shares 34,885 Value ($000) $168 Avg Close $4.39 Range $4.21 - $4.80

Q2 2014

Shares 34,943 Value ($000) $174 Avg Close $4.39 Range $4.14 - $4.59

Q1 2014

Shares 35,119 Value ($000) $162 Avg Close $4.33 Range $3.96 - $4.82

Q4 2013

Shares 34,281 Value ($000) $158 Avg Close $4.44 Range $3.80 - $5.43

Q3 2013

Shares 34,381 Value ($000) $196 Avg Close $5.44 Range $4.86 - $6.33

Q2 2013

Shares 33,119 Value ($000) $183 Avg Close $4.28 Range $2.86 - $5.55

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	881,576	$17,191	$18.60	$16.53 - $20.89
Q3 2025	997,898	$17,249	$17.86	$16.31 - $19.04
Q2 2025	414,407	$7,352	$16.11	$13.93 - $17.67
Q1 2025	418,186	$6,959	$17.63	$15.91 - $19.18
Q4 2024	447,145	$7,950	$17.06	$14.47 - $19.03
Q3 2024	462,912	$7,217	$15.74	$14.06 - $17.09
Q2 2024	613,745	$9,090	$13.71	$12.84 - $14.63
Q1 2024	601,289	$8,322	$13.58	$12.64 - $15.37
Q4 2023	637,662	$9,846	$14.00	$12.63 - $16.25
Q3 2023	643,871	$8,763	$14.09	$12.22 - $15.91
Q2 2023	640,069	$8,359	$12.23	$10.39 - $13.76
Q1 2023	629,562	$8,852	$15.28	$12.57 - $16.97
Q4 2022	649,054	$10,411	$15.26	$12.30 - $17.01
Q3 2022	686,404	$8,958	$13.36	$12.41 - $14.24
Q2 2022	718,774	$9,618	$13.54	$12.61 - $14.88
Q1 2022	588,200	$8,535	$13.24	$11.83 - $14.64
Q4 2021	451,471	$5,684	$12.35	$11.26 - $13.41
Q3 2021	327,604	$4,278	$11.25	$10.48 - $12.48
Q2 2021	322,956	$4,005	$12.50	$11.49 - $13.51
Q1 2021	343,366	$4,536	$10.96	$9.08 - $13.19
Q4 2020	415,104	$4,192	$8.83	$6.86 - $10.03
Q3 2020	436,448	$3,271	$7.43	$6.45 - $8.34
Q2 2020	452,549	$3,520	$6.87	$5.53 - $8.52
Q1 2020	368,776	$2,548	$10.20	$5.65 - $12.55
Q4 2019	370,672	$4,993	$11.56	$10.85 - $12.76
Q3 2019	384,223	$4,695	$11.47	$10.40 - $12.59
Q2 2019	362,210	$4,625	$11.89	$10.57 - $12.61
Q1 2019	351,914	$4,430	$12.79	$11.10 - $13.68
Q4 2018	365,595	$4,753	$13.06	$10.45 - $14.49
Q3 2018	351,150	$5,425	$14.06	$13.23 - $15.04
Q2 2018	355,035	$5,112	$13.48	$12.40 - $14.39
Q1 2018	346,127	$4,812	$13.11	$12.07 - $13.82
Q4 2017	346,429	$4,728	$12.23	$11.19 - $13.71
Q3 2017	338,430	$4,552	$10.81	$9.89 - $12.42
Q2 2017	339,842	$3,925	$10.69	$10.06 - $11.72
Q1 2017	336,110	$3,782	$9.89	$8.86 - $10.57
Q4 2016	316,472	$3,497	$8.31	$6.83 - $10.68
Q3 2016	312,753	$2,599	$7.02	$6.11 - $7.93
Q2 2016	290,390	$1,984	$6.49	$5.83 - $6.90
Q1 2016	282,599	$2,026	$6.30	$5.69 - $7.11
Q4 2015	275,142	$2,157	$6.59	$5.47 - $7.44
Q3 2015	269,772	$1,681	$5.78	$5.42 - $6.21
Q2 2015	56,059	$370	$5.54	$4.96 - $6.36
Q1 2015	35,149	$201	$4.98	$4.63 - $5.35
Q4 2014	34,834	$187	$4.45	$4.09 - $4.98
Q3 2014	34,885	$168	$4.39	$4.21 - $4.80
Q2 2014	34,943	$174	$4.39	$4.14 - $4.59
Q1 2014	35,119	$162	$4.33	$3.96 - $4.82
Q4 2013	34,281	$158	$4.44	$3.80 - $5.43
Q3 2013	34,381	$196	$5.44	$4.86 - $6.33
Q2 2013	33,119	$183	$4.28	$2.86 - $5.55