Old Second Bancorp Inc

OSBC

Exchange: Nasdaq
Industry: State Commercial Banks
SEC CIK: 0000357173

SEC filings (opens in a new tab)

In the last 90 days, Old Second Bancorp Inc insiders filed 0 open-market purchases and 7 sales; 184 institutions reported holding it in 13F filings for Q2 2026, worth $903.3M in total; no superinvestor holds it.

Q2 2024 vs. Q1 2024

How the institutions holding Old Second Bancorp Inc changed between Q1 2024 and Q2 2024.

All holders in Q2 2024 All holders in Q1 2024

13F holders of OSBC: Q1 2024 compared with Q2 2024
Measure	Q1 2024	Of which not filed for Q2 2024	Q2 2024	Change
Holders	151	3	153	+5
Shares	30.0M	106.1K	30.9M	+1.00M (+3.3%)
Value	$415.0M	$1.47M	$457.4M	+$43.8M (+10.6%)

3 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (23)

Institutions that held Old Second Bancorp Inc at the end of Q2 2024 but not at the end of Q1 2024.

Institutions new to OSBC in Q2 2024
Institution	Shares	Value	% of portfolio
Davis Asset Management, L.P.	582,268	$8.62M	0.39%
Boothbay Fund Management, LLC	185,988	$2.75M	0.09%
PMC FIG Opportunities LLC	114,012	$1.69M	2.55%
Millennium Management LLC	108,102	$1.60M	0.00%
Deerfield Management Company, L.P. (Series C)	51,219	$758.6K	0.01%
Jane Street Group, LLC	49,613	$734.8K	0.00%
Graham Capital Wealth Management, LLC	47,019	$696.3K	0.94%
Arrowstreet Capital, Limited Partnership	40,913	$606.0K	0.00%
Connor, Clark & Lunn Investment Management Ltd.	25,131	$372.2K	0.00%
Corebridge Financial, Inc.	23,442	$347.2K	0.00%
Mirae Asset Global ETFs Holdings Ltd.	22,778	$337.3K	0.00%
HGK Asset Management Inc	19,797	$293.2K	0.06%
SG Americas Securities, LLC	17,522	$260.0K	0.00%
Princeton Capital Management LLC	12,770	$189.1K	0.06%
GWM Advisors LLC	11,123	$164.7K	0.00%
Envestnet Asset Management Inc	10,995	$162.8K	0.00%
Innealta Capital, LLC	3,300	$48.9K	0.02%
Quantbot Technologies LP	2,677	$39.6K	0.00%
nVerses Capital, LLC	2,200	$32.6K	0.02%
Picton Mahoney Asset Management	639	$9.00K	0.00%
Quarry LP	69	$1.02K	0.00%
Smartleaf Asset Management LLC	20	$289	0.00%
TFC Financial Management	1	$15	0.00%

Sold out (18)

Institutions that held Old Second Bancorp Inc at the end of Q1 2024 and filed for Q2 2024 without it.

Institutions that sold out of OSBC in Q2 2024
Institution	Shares, Q1 2024	Value, Q1 2024
Boston Partners	55,735	$771.4K
Marshall Wace, LLP	39,752	$550.2K
Verition Fund Management LLC	29,155	$403.5K
ExodusPoint Capital Management, LP	28,850	$399.0K
Squarepoint Ops LLC	24,672	$341.5K
Trexquant Investment LP	22,163	$306.7K
American International Group, Inc.	21,399	$296.2K
Mirae Asset Global Investments Co., Ltd.	18,785	$268.6K
Jump Financial, LLC	15,805	$218.7K
HighPoint Advisor Group LLC	12,789	$187.0K
Livforsakringsbolaget Skandia, Omsesidigt	12,800	$176.9K
Lincoln National Corp	11,770	$162.9K
LPL Financial LLC	11,236	$155.5K
PL Capital Advisors, LLC	8,000	$110.7K
Lazard Asset Management LLC	3,760	$52.0K
Metropolitan Life Insurance Co	1,864	$25.8K
Group One Trading, L.P.	680	$9.41K
Nelson, Van Denburg & Campbell Wealth Management Group, LLC	9	$124

Not filed for Q2 2024 yet (3)

Institutions that held Old Second Bancorp Inc at the end of Q1 2024 and haven't filed a 13F for Q2 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding OSBC in Q1 2024 that haven't filed for Q2 2024
Institution	Shares, Q1 2024	Value, Q1 2024
Ziegler Capital Management, LLC	57,842	$800.5K
Credit Suisse AG	41,263	$571.1K
Shell Asset Management Co	6,982	$103.0K