Who Owns Old Second Bancorp, Inc. (OSBC)?Hedge Fund & Institutional Holders

$19.43-0.13 (-0.64%)Financial ServicesNASDAQ

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$5.617642000390004e+207T

% of Float Held

Infinity%

QoQ Change in Holders

+15 / -0

Price History

$14.45$16.20$17.96$19.71$21.47Sep 24Jun 25Mar 26

OSBC — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
River Street Advisors LLCNew Position+366K+$7.1M
MILLENNIUM MANAGEMENT LLCNew Position+314K+$6.0M
Bank of New York Mellon CorpNew Position+344K+$5.0M
Forum Financial Management, LPNew Position+209K+$4.1M
ADAGE CAPITAL PARTNERS GP, L.L.C.New Position+243K+$4.0M
Knights of Columbus Asset Advisors LLCNew Position+133K+$2.6M
GREAT LAKES ADVISORS, LLCNew Position+167K+$2.0M
THRIVENT FINANCIAL FOR LUTHERANSNew Position+143K+$2.0M
JCSD Capital, LLCNew Position+74K+$1.4M
HUDSON EDGE INVESTMENT PARTNERS INC.New Position+58K+$1.1M
MSH Capital Advisors LLCNew Position+85K+$1.0M
PRINCIPAL FINANCIAL GROUP INCNew Position+50K+$970K
TEACHER RETIREMENT SYSTEM OF TEXASNew Position+30K+$590K
WEALTH ENHANCEMENT ADVISORY SERVICES, LLCNew Position+28K+$563K
CWM, LLCNew Position+24K+$470K

OSBC — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
FJ Capital Management LLCDecreased-90K-$33.2B
GOLDMAN SACHS GROUP INCDecreased-295K-$26.9B
BANC FUNDS CO LLCDecreased-101K-$17.4B
NORTHERN TRUST CORPDecreased-116K-$17.2B
MANUFACTURERS LIFE INSURANCE COMPANY, THEDecreased-25K-$15.8B
Stieven Capital Advisors, L.P.Decreased-2K-$13.4B
ALLIANCEBERNSTEIN L.P.Decreased-13K-$12.1B
AQR CAPITAL MANAGEMENT LLCDecreased-71K-$8.9B
BRIDGEWAY CAPITAL MANAGEMENT, LLCDecreased-77K-$8.7B
JACOBS ASSET MANAGEMENT, LLCDecreased-197K-$8.3B
CHARLES SCHWAB INVESTMENT MANAGEMENT INCDecreased-81-$7.6B
BANK OF AMERICA CORP /DE/Decreased-12K-$6.1B
MORGAN STANLEYDecreased-22K-$5.4B
Qube Research & Technologies LtdDecreased-201K-$4.6B
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPDecreased-384-$3.7B

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1VANGUARD GROUP INC2,880,846$56.2M0.00%Share
2DIMENSIONAL FUND ADVISORS LP2,158,123$42.0M0.01%Share
3BlackRock, Inc.2,004,047$39.0M0.00%Share
4FJ Capital Management LLC1,829,665$35.7M3.94%Share
5STATE STREET CORP1,539,419$30.0M0.00%Share
6BlackRock, Inc.1,506,554$29.0M0.00%Share
7AMERICAN CENTURY COMPANIES INC1,470,185$28.0M0.01%Share
8KENNEDY CAPITAL MANAGEMENT LLC1,267,042$24.7M0.52%Share
9GEODE CAPITAL MANAGEMENT, LLC1,196,909$23.0M0.00%Share
10WELLINGTON MANAGEMENT GROUP LLP969,708$18.0M0.00%Share
11BANC FUNDS CO LLC905,190$17.7M3.49%Share
12MANUFACTURERS LIFE INSURANCE COMPANY, THE891,878$17.0M0.01%Share
13Stieven Capital Advisors, L.P.776,128$15.1M2.81%Share
14GOLDMAN SACHS GROUP INC746,832$14.0M0.00%Share
15JPMORGAN CHASE & CO680,860$13.0M0.00%Share
16ALLIANCEBERNSTEIN L.P.686,032$13.0M0.00%Share
17GOLDMAN SACHS GROUP INC516,391$10.0M0.00%Share
18CHARLES SCHWAB INVESTMENT MANAGEMENT INC437,510$8.0M0.00%Share
19NORTHERN TRUST CORP452,598$8.0M0.00%Share
20BRIDGEWAY CAPITAL MANAGEMENT, LLC427,617$8.0M0.17%Share
21AQR CAPITAL MANAGEMENT LLC434,446$8.0M0.00%Share
22River Street Advisors LLC365,721$7.1M2.67%Share
23NORTHERN TRUST CORP394,259$7.0M0.00%Share
24Gator Capital Management, LLC337,995$6.6M1.34%Share
25VANGUARD GROUP INC335,882$6.5M0.00%Share
26Nuveen, LLC342,924$6.0M0.00%Share
27MILLENNIUM MANAGEMENT LLC313,560$6.0M0.00%Share
28JACOBS ASSET MANAGEMENT, LLC281,477$5.5M3.06%Share
29Forum Financial Management, LP208,884$4.1M0.05%Share
30ARROWSTREET CAPITAL, LIMITED PARTNERSHIP216,511$4.0M0.00%Share
31Empowered Funds, LLC220,121$4.0M0.03%Share
32ADAGE CAPITAL PARTNERS GP, L.L.C.243,192$4.0M0.01%Share
33UBS Group AG176,096$3.4M0.00%Share
34Elizabeth Park Capital Advisors, Ltd.158,657$3.1M2.55%Share
35VICTORY CAPITAL MANAGEMENT INC154,715$3.0M0.00%Share
36BlackRock, Inc.168,627$3.0M0.00%Share
37BlackRock, Inc.164,538$3.0M0.00%Share
38GEODE CAPITAL MANAGEMENT, LLC168,539$3.0M0.00%Share
39BLAIR WILLIAM & CO/IL154,219$3.0M0.01%Share
40BANK OF AMERICA CORP /DE/190,956$3.0M0.00%Share
41EJF Capital LP149,076$2.9M1.65%Share
42Knights of Columbus Asset Advisors LLC132,945$2.6M0.15%Share
43State of New Jersey Common Pension Fund D129,379$2.5M0.01%Share
44BlackRock, Inc.107,439$2.0M0.00%Share
45BlackRock, Inc.112,263$2.0M0.00%Share
46JPMORGAN CHASE & CO103,855$2.0M0.00%Share
47BARCLAYS PLC143,157$2.0M0.00%Share
48Bank of New York Mellon Corp130,309$2.0M0.00%Share
49BANK OF MONTREAL /CAN/131,191$2.0M0.00%Share
50MARTINGALE ASSET MANAGEMENT L P107,718$2.0M0.05%Share

OSBC Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 2025183$618.1M+31
Q3 2025152$580.6B-3
Q2 2025155$429.4B-37
Q1 2025192$538.3B+21
Q4 2024171$3.1T+30
Q3 2024141$311.8T+15
Q2 2024126$240.4T+2
Q1 2024124$205.5T—

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As of Q4 2025, 50 institutional investors hold OSBC (Old Second Bancorp, Inc.). The largest holder is VANGUARD GROUP INC with $56.2M in shares. This quarter, 15 institutions opened new positions and 0 closed their positions.

Frequently Asked Questions

How many hedge funds own OSBC?

As of Q4 2025, 50 institutional investors report holding OSBC (Old Second Bancorp, Inc.) in their 13F filings.

Who is the largest institutional holder of OSBC?

The largest institutional holder of OSBC is VANGUARD GROUP INC with $56.2M in shares.

Is institutional ownership of OSBC increasing or decreasing?

This quarter, 15 institutions opened new positions in OSBC and 0 closed their positions.