OLD SECOND BANCORP INC ILL

Ticker: OSBC CUSIP: 680277100 Class: Common Stock

AMERICAN CENTURY COMPANIES INC's Holding History (CIK: 0000748054)

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

Q4 2025

Shares 1,470,185 Value ($000) $28,669 Avg Close $18.60 Range $16.53 - $20.89

Q3 2025

Shares 1,387,891 Value ($000) $23,990 Avg Close $17.86 Range $16.31 - $19.04

Q2 2025

Shares 1,227,462 Value ($000) $21,775 Avg Close $16.11 Range $13.93 - $17.67

Q1 2025

Shares 1,139,741 Value ($000) $18,965 Avg Close $17.63 Range $15.91 - $19.18

Q4 2024

Shares 1,038,495 Value ($000) $18,464 Avg Close $17.06 Range $14.47 - $19.03

Q3 2024

Shares 939,878 Value ($000) $14,653 Avg Close $15.74 Range $14.06 - $17.09

Q2 2024

Shares 800,187 Value ($000) $11,851 Avg Close $13.71 Range $12.84 - $14.63

Q1 2024

Shares 668,564 Value ($000) $9,253 Avg Close $13.58 Range $12.64 - $15.37

Q4 2023

Shares 549,619 Value ($000) $8,486 Avg Close $14.00 Range $12.63 - $16.25

Q3 2023

Shares 447,267 Value ($000) $6,087 Avg Close $14.09 Range $12.22 - $15.91

Q2 2023

Shares 390,175 Value ($000) $5,096 Avg Close $12.23 Range $10.39 - $13.76

Q1 2023

Shares 353,899 Value ($000) $4,976 Avg Close $15.28 Range $12.57 - $16.97

Q4 2022

Shares 314,032 Value ($000) $5,037 Avg Close $15.26 Range $12.30 - $17.01

Q3 2022

Shares 220,926 Value ($000) $2,883 Avg Close $13.36 Range $12.41 - $14.24

Q2 2022

Shares 192,800 Value ($000) $2,580 Avg Close $13.54 Range $12.61 - $14.88

Q1 2022

Shares 144,154 Value ($000) $2,092 Avg Close $13.24 Range $11.83 - $14.64

Q4 2021

Shares 110,654 Value ($000) $1,393 Avg Close $12.35 Range $11.26 - $13.41

Q3 2021

Shares 82,123 Value ($000) $1,073 Avg Close $11.25 Range $10.48 - $12.48

Q2 2021

Shares 71,076 Value ($000) $881 Avg Close $12.50 Range $11.49 - $13.51

Q1 2021

Shares 52,972 Value ($000) $700 Avg Close $10.96 Range $9.08 - $13.19

Q4 2020

Shares 42,700 Value ($000) $431 Avg Close $8.83 Range $6.86 - $10.03

Q3 2020

Shares 34,538 Value ($000) $259 Avg Close $7.43 Range $6.45 - $8.34

Q2 2020

Shares 28,186 Value ($000) $219 Avg Close $6.87 Range $5.53 - $8.52

Q1 2020

Shares 11,950 Value ($000) $83 Avg Close $10.20 Range $5.65 - $12.55

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,470,185	$28,669	$18.60	$16.53 - $20.89
Q3 2025	1,387,891	$23,990	$17.86	$16.31 - $19.04
Q2 2025	1,227,462	$21,775	$16.11	$13.93 - $17.67
Q1 2025	1,139,741	$18,965	$17.63	$15.91 - $19.18
Q4 2024	1,038,495	$18,464	$17.06	$14.47 - $19.03
Q3 2024	939,878	$14,653	$15.74	$14.06 - $17.09
Q2 2024	800,187	$11,851	$13.71	$12.84 - $14.63
Q1 2024	668,564	$9,253	$13.58	$12.64 - $15.37
Q4 2023	549,619	$8,486	$14.00	$12.63 - $16.25
Q3 2023	447,267	$6,087	$14.09	$12.22 - $15.91
Q2 2023	390,175	$5,096	$12.23	$10.39 - $13.76
Q1 2023	353,899	$4,976	$15.28	$12.57 - $16.97
Q4 2022	314,032	$5,037	$15.26	$12.30 - $17.01
Q3 2022	220,926	$2,883	$13.36	$12.41 - $14.24
Q2 2022	192,800	$2,580	$13.54	$12.61 - $14.88
Q1 2022	144,154	$2,092	$13.24	$11.83 - $14.64
Q4 2021	110,654	$1,393	$12.35	$11.26 - $13.41
Q3 2021	82,123	$1,073	$11.25	$10.48 - $12.48
Q2 2021	71,076	$881	$12.50	$11.49 - $13.51
Q1 2021	52,972	$700	$10.96	$9.08 - $13.19
Q4 2020	42,700	$431	$8.83	$6.86 - $10.03
Q3 2020	34,538	$259	$7.43	$6.45 - $8.34
Q2 2020	28,186	$219	$6.87	$5.53 - $8.52
Q1 2020	11,950	$83	$10.20	$5.65 - $12.55