John Williams Jr Receives Stock Award at OLD Second Bancorp Inc (OSBC) — SEC Form 4, Feb 25, 2026

SEC Form 4 · No Market Transaction

Stock Award

Compensation grant — no market purchase or sale.

Reporting Owner

John Williams Jr

Director

TXN 2026-02-21 · FILED 2026-02-25

Equity Position 50.5K sh 50,458 → 50,502

Equity Change +0.1% shares held after vs before

Filing Lag 3 business days late vs 2-day SEC deadline

Form 4 · Statement of Changes in Beneficial Ownership

OLD Second Bancorp Inc

OSBC CIK 0000357173

Reporting Owner

Name	Relationship
John Williams Jr CIK 0001895832	Director

John Williams Jr at OLD Second Bancorp Inc Full insider history

Bought (12 mo) —

Sold (12 mo) —

More from this insider at OLD Second Bancorp Inc

Non-Derivative Securities Transactions

Title	Date	Type	Shares	Price	Net Total	Post-Txn	Ownership
Restricted Stock UnitsF1	2026-02-17	A - Award/Grant	3,121 A	$0.00	—	13,672	Direct
Restricted Stock UnitsF2	2026-02-21	F - Tax Payment	3,077 D	$20.57	-$63,294	10,595	Direct

Non-Derivative Holdings

Title	Shares Held	Ownership
Old Second Bancorp, Inc. Common StockF3	36,830	Direct

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. Show more
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. Show more
F3: Included in this total are 6,157 shares held in Mr. Williams' name outright; 20,548 shares held with a brokerage and 10,125 shares held in Trust. Show more

Institutional Holders

Largest by reported value

5%+ Holders · 13D/G 1 filer

Latest Schedule 13D/G per filer; stakes the filer reported closed are left out.

Other insiders at OLD Second Bancorp Inc

GET /v1/forms/4/0001895832-26-000002 API docs