Old Second Bancorp Ownership & Insider Activity

Old Second Bancorp (OSBC) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 3.4% of shares outstanding. Institutional investors hold 50.2%. Over the past 90 days, insiders made 7 sales worth $4.3M.

Shares Outstanding

50.876M

Shares Float

49.027M

Insider Shares Owned

1.726M

Insider % Owned

3.4%

Institutional Shares Held

25.550M

Institutional % Held

50.2%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$4.3M total

Net Activity

Net Selling

Net Value (90d)

-$4.3M

Old Second Bancorp Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Sep 23, 2026	GARY COLLINS	VICE CHAIRMAN	SELL	16.000K	$24.69	$395K
Sep 8, 2026	HUGH MCLEAN	—	SELL	25.000K	$25.63	$641K
Sep 4, 2026	GARY COLLINS	VICE CHAIRMAN	SELL	5.000K	$25.70	$129K
Sep 3, 2026	HUGH MCLEAN	—	SELL	25.000K	$25.73	$643K
Sep 2, 2026	Patrick Darin Campbell	PRESIDENT, POWERSPORTS LENDING	SELL	24.000K	$25.53	$613K
Aug 12, 2026	James Eccher	CHAIRMAN AND CEO	SELL	19.313K	$25.61	$495K
Aug 11, 2026	James Eccher	CHAIRMAN AND CEO	SELL	55.687K	$25.46	$1.4M
May 22, 2026	GARY COLLINS	VICE CHAIRMAN	SELL	5.120K	$21.12	$108K
May 21, 2026	GARY COLLINS	VICE CHAIRMAN	SELL	10.000K	$21.12	$211K
May 11, 2026	Billy Lyons Jr	—	BUY	24.000	$20.90	$502
May 11, 2026	Donald Pilmer	EVP	SELL	25.000K	$20.75	$519K
May 8, 2026	GARY COLLINS	VICE CHAIRMAN	SELL	15.000K	$21.23	$319K