OLD SECOND BANCORP INC ILL

Ticker: OSBC CUSIP: 680277100 Class: Common Stock

Nuveen, LLC's Holding History (CIK: 0001871926)

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

Q4 2025

Shares 415,470 Value ($000) $8,102 Avg Close $18.60 Range $16.53 - $20.89

Q3 2025

Shares 414,668 Value ($000) $7,168 Avg Close $17.86 Range $16.31 - $19.04

Q2 2025

Shares 383,048 Value ($000) $6,795 Avg Close $16.11 Range $13.93 - $17.67

Q1 2025

Shares 336,126 Value ($000) $5,593 Avg Close $17.63 Range $15.91 - $19.18

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	415,470	$8,102	$18.60	$16.53 - $20.89
Q3 2025	414,668	$7,168	$17.86	$16.31 - $19.04
Q2 2025	383,048	$6,795	$16.11	$13.93 - $17.67
Q1 2025	336,126	$5,593	$17.63	$15.91 - $19.18