NYSE · OSBC

Old Second Bancorp, Inc.

Financial Services · Banks - Regional

$25.24

Up+$0.07 (+0.28%)

Updated Aug 30, 2026, 3:20 PM

SID Score

5.9/10

Composite research score

Smart Money

—

Institutional and insider signal

Market cap: 1.09B
P/E ratio: 15.39
Dividend yield: 0.99%
52-week range: $18.91 – $26.06
Volume: 388.76K
Avg. volume: 352.95K

Price performance

OSBC price history

1M range · 20 trading sessions · Daily adjusted prices

Last close: $25.24
Period change: -2.09%
Period low: $25.04
Period high: $25.91

Daily close

View OHLC price history

OSBC OHLC price history, latest 40 sessions
Date	Open	High	Low	Close	Volume
Aug 28, 2026	$25.22	$25.365	$25.15	$25.24	388.76K
Aug 27, 2026	$25.06	$25.29	$24.89	$25.17	290.33K
Aug 26, 2026	$25.24	$25.38	$25.11	$25.25	327.65K
Aug 25, 2026	$25.52	$25.52	$25.18	$25.19	313.04K
Aug 24, 2026	$25.31	$25.63	$25.29	$25.45	317.21K
Aug 21, 2026	$25.39	$25.50	$25.07	$25.335	337.3K
Aug 20, 2026	$24.89	$25.25	$24.70	$25.20	370.49K
Aug 19, 2026	$25.64	$25.74	$25.02	$25.04	529.12K
Aug 18, 2026	$25.93	$26.00	$25.615	$25.66	344.21K
Aug 17, 2026	$25.78	$26.055	$25.71	$25.83	381.53K
Aug 14, 2026	$25.82	$25.95	$25.67	$25.91	338.55K
Aug 13, 2026	$25.89	$26.006	$25.71	$25.81	426.8K
Aug 12, 2026	$25.48	$25.84	$25.47	$25.80	324.25K
Aug 11, 2026	$25.32	$25.62	$25.30	$25.45	371.39K
Aug 10, 2026	$25.34	$25.555	$25.15	$25.28	395.33K
Aug 7, 2026	$25.68	$25.73	$25.325	$25.44	460.72K
Aug 6, 2026	$25.99	$26.015	$25.675	$25.78	413.24K
Aug 5, 2026	$25.95	$25.95	$25.72	$25.89	468.48K
Aug 4, 2026	$25.72	$26.04	$25.5801	$25.79	551.6K
Aug 3, 2026	$25.48	$25.87	$25.445	$25.78	521.28K

Latest OSBC news

The latest Smart Investors Daily articles mentioning OSBC.

dividendsAug 6, 2026

OSBC (OSBC) Goes Ex-Dividend Tomorrow

analystJul 28, 2026

Piper Sandler Reiterates Overweight Rating on Old Second Bancorp, Inc. (OSBC)

sec filingJul 22, 2026

OLD SECOND BANCORP INC (OSBC) Reports Material Event to SEC

Latest OSBC news

The latest Smart Investors Daily articles mentioning OSBC.

Stock researchResearch & News · SEC Filings

Company

Overview Forecast Earnings Dividend Financials

Market Activity

Options Insider Trades Short Interest Institutional Ownership Sentiment

Research & News

Analysis Competitors News SEC Filings SID Coverage

OSBC research

SEC Filings

Recent regulatory filings and source documents.

SEC filing history

Open a filing to view the original source document.

OSBC SEC filings
Filed	Form	Description	Accepted	Document
Aug 13, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Aug 12, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Aug 11, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Aug 6, 2026	10-Q	Form 10-Q - Quarterly report [Sections 13 or 15(d)]	—	Open source
Jul 22, 2026	8-K	Form 8-K - Current report - Item 2.02 Item 9.01	—	Open source
Jul 21, 2026	8-K	Form 8-K - Current report - Item 8.01	—	Open source
Jul 8, 2026	8-K	Form 8-K - Current report - Item 5.02	—	Open source
Jul 2, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Jul 2, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Jul 2, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Jul 2, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Jul 2, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Jul 1, 2026	8-K	Form 8-K - Current report - Item 8.01	—	Open source
Jun 25, 2026	8-K	Form 8-K - Current report - Item 8.01	—	Open source
May 7, 2026	10-Q	Form 10-Q - Quarterly report [Sections 13 or 15(d)]	—	Open source
Apr 22, 2026	8-K	Form 8-K - Current report - Item 2.02 Item 9.01	—	Open source
Apr 21, 2026	8-K	Form 8-K - Current report - Item 8.01	—	Open source
Apr 6, 2026	DEF 14A	Form DEF 14A - Other definitive proxy statements	—	Open source
Apr 2, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Apr 2, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Apr 2, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Apr 2, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Apr 2, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Apr 1, 2026	8-K	Form 8-K - Current report - Item 8.01	—	Open source
Mar 23, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 4, 2026	8-K	Form 8-K - Current report - Item 8.01	—	Open source
Mar 4, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Jan 21, 2026	8-K	Form 8-K - Current report - Item 2.02 Item 9.01	—	Open source
Jan 20, 2026	8-K	Form 8-K - Current report - Item 8.01	—	Open source
Jan 2, 2026	8-K	Form 8-K - Current report - Item 8.01	—	Open source
Dec 9, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Nov 26, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Nov 13, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Nov 7, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Nov 6, 2025	10-Q	Form 10-Q - Quarterly report [Sections 13 or 15(d)]	—	Open source
Oct 22, 2025	8-K	Form 8-K - Current report - Item 2.02 Item 9.01	—	Open source
Oct 21, 2025	8-K	Form 8-K - Current report - Item 8.01	—	Open source
Oct 1, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Oct 1, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Oct 1, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Oct 1, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Oct 1, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Oct 1, 2025	8-K	Form 8-K - Current report - Item 8.01	—	Open source
Sep 17, 2025	8-K/A	Form 8-K/A - Current report: [Amend] - Item 9.01	—	Open source
Sep 15, 2025	8-K	Form 8-K - Current report - Item 5.02	—	Open source
Aug 7, 2025	10-Q	Form 10-Q - Quarterly report [Sections 13 or 15(d)]	—	Open source
Aug 5, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Jul 23, 2025	8-K	Form 8-K - Current report - Item 2.02 Item 9.01	—	Open source
Jul 21, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Jul 15, 2025	8-K	Form 8-K - Current report - Item 8.01	—	Open source

Filed

Form

Description

Accepted

Document

Aug 13, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Aug 12, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Aug 11, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Aug 6, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

—

Open source

Jul 22, 2026

8-K

Form 8-K - Current report - Item 2.02 Item 9.01

—

Open source

Jul 21, 2026

8-K

Form 8-K - Current report - Item 8.01

—

Open source

Jul 8, 2026

8-K

Form 8-K - Current report - Item 5.02

—

Open source

Jul 2, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Jul 2, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Jul 2, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Jul 2, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Jul 2, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Jul 1, 2026

8-K

Form 8-K - Current report - Item 8.01

—

Open source

Jun 25, 2026

8-K

Form 8-K - Current report - Item 8.01

—

Open source

May 7, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

—

Open source

Apr 22, 2026

8-K

Form 8-K - Current report - Item 2.02 Item 9.01

—

Open source

Apr 21, 2026

8-K

Form 8-K - Current report - Item 8.01

—

Open source

Apr 6, 2026

DEF 14A

Form DEF 14A - Other definitive proxy statements

—

Open source

Apr 2, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Apr 2, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Apr 2, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Apr 2, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Apr 2, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Apr 1, 2026

8-K

Form 8-K - Current report - Item 8.01

—

Open source

Mar 23, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Mar 4, 2026

8-K

Form 8-K - Current report - Item 8.01

—

Open source

Mar 4, 2026

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Jan 21, 2026

8-K

Form 8-K - Current report - Item 2.02 Item 9.01

—

Open source

Jan 20, 2026

8-K

Form 8-K - Current report - Item 8.01

—

Open source

Jan 2, 2026

8-K

Form 8-K - Current report - Item 8.01

—

Open source

Dec 9, 2025

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Nov 26, 2025

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Nov 13, 2025

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Nov 7, 2025

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Nov 6, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

—

Open source

Oct 22, 2025

8-K

Form 8-K - Current report - Item 2.02 Item 9.01

—

Open source

Oct 21, 2025

8-K

Form 8-K - Current report - Item 8.01

—

Open source

Oct 1, 2025

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Oct 1, 2025

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Oct 1, 2025

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Oct 1, 2025

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Oct 1, 2025

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Oct 1, 2025

8-K

Form 8-K - Current report - Item 8.01

—

Open source

Sep 17, 2025

8-K/A

Form 8-K/A - Current report: [Amend] - Item 9.01

—

Open source

Sep 15, 2025

8-K

Form 8-K - Current report - Item 5.02

—

Open source

Aug 7, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

—

Open source

Aug 5, 2025

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Jul 23, 2025

8-K

Form 8-K - Current report - Item 2.02 Item 9.01

—

Open source

Jul 21, 2025

Form 4 - Statement of changes in beneficial ownership of securities

—

Open source

Jul 15, 2025

8-K

Form 8-K - Current report - Item 8.01

—

Open source

OSBC (OSBC) Goes Ex-Dividend Tomorrow

Piper Sandler Reiterates Overweight Rating on Old Second Bancorp, Inc. (OSBC)

OLD SECOND BANCORP INC (OSBC) Reports Material Event to SEC

Featured By

OSBC (OSBC) Goes Ex-Dividend Tomorrow

Piper Sandler Reiterates Overweight Rating on Old Second Bancorp, Inc. (OSBC)

OLD SECOND BANCORP INC (OSBC) Reports Material Event to SEC