OLD SECOND BANCORP INC ILL

Ticker: OSBC CUSIP: 680277100 Class: Common Stock

MAI Capital Management's Holding History (CIK: 0001040197)

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

Q4 2025

Shares 1,474 Value ($000) $29 Avg Close $18.60 Range $16.53 - $20.89

Q3 2025

Shares 1,430 Value ($000) $25 Avg Close $17.86 Range $16.31 - $19.04

Q2 2025

Shares 1,523 Value ($000) $27 Avg Close $16.11 Range $13.93 - $17.67

Q1 2025

Shares 1,357 Value ($000) $23 Avg Close $17.63 Range $15.91 - $19.18

Q4 2024

Shares 1,357 Value ($000) $24 Avg Close $17.06 Range $14.47 - $19.03

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,474	$29	$18.60	$16.53 - $20.89
Q3 2025	1,430	$25	$17.86	$16.31 - $19.04
Q2 2025	1,523	$27	$16.11	$13.93 - $17.67
Q1 2025	1,357	$23	$17.63	$15.91 - $19.18
Q4 2024	1,357	$24	$17.06	$14.47 - $19.03