KLAESER DENNIS L 4
4 · OLD SECOND BANCORP INC · Filed Feb 24, 2026
Insider Transaction Report
Form 4
KLAESER DENNIS L
Director
Transactions
- Award
Restricted Stock Units
[F1]2026-02-17+3,121→ 13,672 total - Tax Payment
Restricted Stock Units
[F2]2026-02-21$20.57/sh−3,077$63,294→ 10,595 total
Holdings
- 7,657
Old Second Bancorp, Inc. Common Stock
[F3] - 42,000(indirect: By Trust)
Old Second Bancorp, Inc. Common Stock
Footnotes (3)
- [F1]These shares represent restricted stock units granted pursuant to the Old Second Bancorp, Inc. Long Term Incentive Plan. These shares have a three-year cliff vesting.
- [F2]Represents shares vested upon the third anniversary of the date of grant previously reported and are now issued and added to the reporting person's common stock holdings outright.
- [F3]Represents shares held in Mr. Klaeser's name outright.
Signature
/s/ Shirley Cantrell, Attorney-in-Fact|2026-02-25