OLD SECOND BANCORP INC ILL

Ticker: OSBC CUSIP: 680277100 Class: Common Stock

BlackRock, Inc.'s Holding History (CIK: 0002012383)

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

Q4 2025

Shares 4,155,906 Value ($000) $81,040 Avg Close $18.60 Range $16.53 - $20.89

Q3 2025

Shares 3,817,778 Value ($000) $65,990 Avg Close $17.86 Range $16.31 - $19.04

Q2 2025

Shares 3,501,598 Value ($000) $62,118 Avg Close $16.11 Range $13.93 - $17.67

Q1 2025

Shares 3,580,497 Value ($000) $59,579 Avg Close $17.63 Range $15.91 - $19.18

Q4 2024

Shares 3,537,457 Value ($000) $62,896 Avg Close $17.06 Range $14.47 - $19.03

Q3 2024

Shares 3,680,119 Value ($000) $57,373 Avg Close $15.74 Range $14.06 - $17.09

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	4,155,906	$81,040	$18.60	$16.53 - $20.89
Q3 2025	3,817,778	$65,990	$17.86	$16.31 - $19.04
Q2 2025	3,501,598	$62,118	$16.11	$13.93 - $17.67
Q1 2025	3,580,497	$59,579	$17.63	$15.91 - $19.18
Q4 2024	3,537,457	$62,896	$17.06	$14.47 - $19.03
Q3 2024	3,680,119	$57,373	$15.74	$14.06 - $17.09