Gartelmann Richard A JR 4
4 · OLD SECOND BANCORP INC · Filed Feb 24, 2026
Insider Transaction Report
Form 4
Transactions
- Award
Restricted Stock Units
[F1]2026-02-17+5,912→ 26,464 total - Tax Payment
Restricted Stock Units
[F2]2026-02-21$20.57/sh−894$18,390→ 23,879 total
Holdings
- 1,691
Old Second Bancorp, Inc. Common Stock
[F3] - 24,874
Old Second Bancorp, Inc. Common Stock
- 12,563(indirect: By 401-K)
Old Second Bancorp, Inc. Common Stock
Footnotes (3)
- [F1]Each restricted stock unit represents a contingent right to receive one share of common stock. The reporting person was granted 5,912 restricted stock units on the date of the grant, 2,956 of which are time-based restricted stock units that vest on the third anniversary of the grant date, and 2,956 of which are performance-based restricted stock units that may vest and convert to shares within a range from 0% to 175% of the underlying performance-based restricted stock units originally awarded, depending on our compensation committee approved performance metrics. Vested shares, if any, will be delivered to the reporting person in 3 to 5 business days from the date of vesting.
- [F2]Represents shares withheld by the issuer to satisfy applicable tax withholding obligations in connection with the vesting of 2,585 previously reported time-based restricted stock units, the remaining shares of which were issued and added to the reporting person's common stock holdings.
- [F3]These shares are held in Mr. Gartelmann's name outright.
Signature
/s/ Shirley Cantrell, Attorney-in-Fact|2026-02-24