OLD SECOND BANCORP INC OSBC

US Financials State Commercial Banks
$23.23
-1.7%
52w: $16.38 – $23.62

Latest 13F among current holders filed 19 days ago (Jun 16, 2026)

Price — last 12 months

research preview data
16.3820.0023.62
Jun 20, 2025 Jul 2, 2026
Institutional holders
188
+3 QoQ
13F value
$761.2M
+4.8% QoQ
Smart-money holders
10
signal tier ≥ 2
New smart buyers
0
Q1 2026
Options barometer
calls only
$488K calls / — puts

Institutional value by quarter

$445.6M
Q1 2024
$471.4M
Q2 2024
$512.2M
Q3 2024
$573.9M
Q4 2024
$546.5M
Q1 2025
$580.0M
Q2 2025
$637.9M
Q3 2025
$726.3M
Q4 2025
$761.2M
Q1 2026

Number of holders

152
Q1 2024
154
Q2 2024
176
Q3 2024
181
Q4 2024
193
Q1 2025
184
Q2 2025
197
Q3 2025
185
Q4 2025
188
Q1 2026

Who owns OSBC?

Q1 2026 filings
FundTypeSharesValue% of fundChange
BlackRock, Inc. Index provider4.1M$83.2M0.0%-0.7%
DIMENSIONAL FUND ADVISORS LP Quant stat arb2.4M$48.2M0.0%+5.7%
VANGUARD CAPITAL MANAGEMENT LLC Diversified mechanical2.3M$45.4M0.0%
Davis Asset Management, L.P. ★3Fundamental concentrated1.8M$36.3M1.1%+3.1%
GOLDMAN SACHS GROUP INC Bank broker1.7M$34.1M0.0%+33.9%
STATE STREET CORP Index provider1.6M$32.2M0.0%+3.9%
AMERICAN CENTURY COMPANIES INC Diversified mechanical1.6M$32.1M0.0%+8.2%
FJ Capital Management LLC Quant stat arb1.5M$30.3M3.4%-17.7%
Boston Partners Other1.4M$29.3M0.0%+76.7%
GEODE CAPITAL MANAGEMENT, LLC Index provider1.3M$25.9M0.0%-6.1%
KENNEDY CAPITAL MANAGEMENT LLC Other1.3M$25.6M0.5%+0.1%
BANC FUNDS CO LLC Other1.0M$20.7M3.9%+13.7%
MANUFACTURERS LIFE INSURANCE COMPANY, THE Diversified mechanical878.7K$17.7M0.0%-1.5%
WELLINGTON MANAGEMENT GROUP LLP Long only active857.8K$17.3M0.0%-11.5%
Stieven Capital Advisors, L.P. ★2Fundamental diversified773.5K$15.6M3.3%-0.3%
NORTHERN TRUST CORP Index provider764.3K$15.4M0.0%-13.3%
River Street Advisors LLC Other746.7K$15.1M5.1%+104.0%
VANGUARD PORTFOLIO MANAGEMENT LLC Diversified mechanical712.4K$14.4M0.0%
JPMORGAN CHASE & CO Bank broker701.0K$13.9M0.0%-18.4%
ALLIANCEBERNSTEIN L.P. Long only active690.8K$13.5M0.0%+0.7%
BRIDGEWAY CAPITAL MANAGEMENT, LLC Diversified mechanical438.3K$8.8M0.2%+2.5%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Index provider430.9K$8.7M0.0%-1.5%
Nuveen, LLC Diversified mechanical419.6K$8.5M0.0%+1.0%
AQR CAPITAL MANAGEMENT LLC Quant stat arb392.0K$7.9M0.0%-12.3%
Gator Capital Management, LLC ★2Fundamental diversified351.5K$7.1M1.5%+4.0%
Bank of New York Mellon Corp Diversified mechanical337.3K$6.8M0.0%-2.0%
VANGUARD FIDUCIARY TRUST CO Diversified mechanical335.5K$6.8M0.0%
BANK OF AMERICA CORP /DE/ Bank broker331.3K$6.7M0.0%-3.3%
MORGAN STANLEY Bank broker278.4K$5.6M0.0%-3.4%
UBS Group AG Bank broker259.3K$5.2M0.0%+46.4%
Empowered Funds, LLC Diversified mechanical233.6K$4.7M0.0%New
Forum Financial Management, LP Wealth advisor205.7K$4.1M0.1%-1.5%
SEI INVESTMENTS CO Diversified mechanical203.1K$4.1M0.0%+73.5%
GREAT LAKES ADVISORS, LLC Other198.0K$4.0M0.0%+18.3%
Squarepoint Ops LLC Quant stat arb170.7K$3.4M0.0%+252.1%
Elizabeth Park Capital Advisors, Ltd. ★2Fundamental diversified166.5K$3.4M2.6%+4.9%
Siena Capital Partners GP, LLC Other163.0K$3.3M0.9%Held
BLAIR WILLIAM & CO/IL Diversified mechanical162.9K$3.3M0.0%+5.6%
EJF Capital LP Other151.2K$3.0M2.1%+1.4%
JACOBS ASSET MANAGEMENT, LLC ★3Fundamental concentrated150.0K$3.0M1.8%-46.7%
Thrivent Financial for Lutherans Diversified mechanical143.1K$2.9M0.0%Held
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Quant stat arb141.0K$2.8M0.0%-34.9%
VICTORY CAPITAL MANAGEMENT INC Diversified mechanical139.1K$2.8M0.0%-10.1%
Knights of Columbus Asset Advisors LLC Other131.4K$2.6M0.1%-1.1%
State of New Jersey Common Pension Fund D Diversified mechanical129.4K$2.6M0.0%Held
BANK OF MONTREAL /CAN/ Bank broker118.5K$2.4M0.0%-14.9%
Russell Investments Group, Ltd. Diversified mechanical111.9K$2.3M0.0%-0.2%
Curi Capital, LLC Other100.5K$2.0M0.0%Held
MENDON CAPITAL ADVISORS CORP ★3Fundamental concentrated100.0K$2.0M0.8%Held
Swiss National Bank Index provider98.7K$2.0M0.0%Held

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