OLD SECOND BANCORP INC ILL

Ticker: OSBC CUSIP: 680277100 Class: Common Stock

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

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

Q4 2025

Shares 167,385 Value ($000) $3,264 Avg Close $18.60 Range $16.53 - $20.89

Q3 2025

Shares 167,385 Value ($000) $2,893 Avg Close $17.86 Range $16.31 - $19.04

Q2 2025

Shares 192,462 Value ($000) $3,414 Avg Close $16.11 Range $13.93 - $17.67

Q1 2025

Shares 197,992 Value ($000) $3,295 Avg Close $17.63 Range $15.91 - $19.18

Q4 2024

Shares 113,593 Value ($000) $2,020 Avg Close $17.06 Range $14.47 - $19.03

Q3 2024

Shares 113,593 Value ($000) $1,771 Avg Close $15.74 Range $14.06 - $17.09

Q2 2024

Shares 196,064 Value ($000) $2,904 Avg Close $13.71 Range $12.84 - $14.63

Q1 2024

Shares 183,784 Value ($000) $2,544 Avg Close $13.58 Range $12.64 - $15.37

Q4 2023

Shares 184,195 Value ($000) $2,844 Avg Close $14.00 Range $12.63 - $16.25

Q3 2023

Shares 172,342 Value ($000) $2,346 Avg Close $14.09 Range $12.22 - $15.91

Q2 2023

Shares 69,340 Value ($000) $906 Avg Close $12.23 Range $10.39 - $13.76

Q1 2023

Shares 101,335 Value ($000) $1,425 Avg Close $15.28 Range $12.57 - $16.97

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	167,385	$3,264	$18.60	$16.53 - $20.89
Q3 2025	167,385	$2,893	$17.86	$16.31 - $19.04
Q2 2025	192,462	$3,414	$16.11	$13.93 - $17.67
Q1 2025	197,992	$3,295	$17.63	$15.91 - $19.18
Q4 2024	113,593	$2,020	$17.06	$14.47 - $19.03
Q3 2024	113,593	$1,771	$15.74	$14.06 - $17.09
Q2 2024	196,064	$2,904	$13.71	$12.84 - $14.63
Q1 2024	183,784	$2,544	$13.58	$12.64 - $15.37
Q4 2023	184,195	$2,844	$14.00	$12.63 - $16.25
Q3 2023	172,342	$2,346	$14.09	$12.22 - $15.91
Q2 2023	69,340	$906	$12.23	$10.39 - $13.76
Q1 2023	101,335	$1,425	$15.28	$12.57 - $16.97