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Old Second Bancorp Inc (OSBC)

CUSIP: 680277100 | NYSE | Financial Services · Banks - Regional | Small Cap | 509 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
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Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13GVanguard Capital Management LLC2,562,5495.0%New 5%+ stakeSep 30, 202692d ahead of 13F (2,179,877 sh) · +382,672
13GVanguard Capital Management LLC2,562,549
5.0% of class · Sep 30, 2026New 5%+ stake
92d ahead of 13F (2,179,877 sh) · +382,672

Institutional Holders — Q3 2026

Dimensional Fund Advisors LP2,575,752
0.0% of portfolio›$63.1M
Congress Asset Management Co411,201
0.1% of portfolio›$10.1M
Forum Financial Management, LP237,367
0.1% of portfolio›$5.8M
Principal Financial Group Inc134,253
0.0% of portfolio›$3.3M
MSH Capital Advisors LLC84,826
0.3% of portfolio›$2.1M
Jcsd Capital, LLC74,100
2.8% of portfolio›$1.8M
Sara-Bay Financial59,000
0.4% of portfolio›$1.4M
Creative Planning57,765
0.0% of portfolio›$1.4M
Wealth Enhancement Advisory Services, LLC46,268
0.0% of portfolio›$1.2M
Citigroup Inc37,876
0.0% of portfolio›$927.6K
Y-Intercept (Hong Kong) Ltd36,774
0.0% of portfolio›$900.6K
Hudson Edge Investment Partners Inc.25,729
0.1% of portfolio›$630.1K
Kestra Advisory Services, LLC24,297
0.0% of portfolio›$595.0K
Lakewood Asset Management LLC24,185
0.3% of portfolio›$592.3K
Virginia Retirement Systems ET Al24,100
0.0% of portfolio›$590.2K
Integrated Advisors Network LLC22,566
0.0% of portfolio›$552.6K
Centennial Wealth Advisory LLC17,598
0.1% of portfolio›$431.0K
4Wealth Advisors, Inc.16,500
0.3% of portfolio›$406.7K
Sentinel Trust Co LBA14,051
0.0% of portfolio›$344
Princeton Capital Management LLC13,770
0.1% of portfolio›$337.2K
Arizona State Retirement System13,759
0.0% of portfolio›$337.0K
Sterling Capital Management LLC13,486
0.0% of portfolio›$330.3K
Hohimer Wealth Management, LLC11,221
0.0% of portfolio›$274.8K
Choreo, LLC9,197
0.0% of portfolio›$225.2K
Pictet Asset Management Holding SA8,172
0.0% of portfolio›$200.1K
Parkside Financial Bank & Trust4,475
0.0% of portfolio›$109.6K
USA Financial Formulas2,983
0.0% of portfolio›$73.1K
Versant Capital Management, Inc2,751
0.0% of portfolio›$67.4K
Parallel Advisors, LLC2,622
0.0% of portfolio›$64.2K
Nisa Investment Advisors, LLC2,271
0.0% of portfolio›$55.6K
State of Alaska, Department of Revenue1,964
0.0% of portfolio›$48
Pinnacle Wealth Planning Services, Inc.1,045
0.0% of portfolio›$25.6K
KFG LLC998
0.0% of portfolio›$24.4K
EverSource Wealth Advisors, LLC995
0.0% of portfolio›$24.4K
IFP Advisors, Inc797
0.0% of portfolio›$19.5K
Fortitude Family Office, LLC777
0.0% of portfolio›$19.0K
Gamma Investing LLC668
0.0% of portfolio›$16.4K
Sfam, LLC540
0.0% of portfolio›$13.2K
Essential Partners LLC540
0.0% of portfolio›$13.2K
Farther Finance Advisors, LLC530
0.0% of portfolio›$13.0K
SJS Investment Consulting Inc.495
0.0% of portfolio›$12.1K
Pension & Wealth Management Advisors, Inc.295
0.0% of portfolio›$7.2K
Signaturefd, LLC215
0.0% of portfolio›$5.3K
Harbor Capital Advisors, Inc.197
0.0% of portfolio›$5
Root Financial Partners, LLC168
0.0% of portfolio›$4.1K
Physician Wealth Advisors, Inc.64
0.0% of portfolio›$1.6K
True Wealth Design, LLC64
0.0% of portfolio›$1.6K
Clark Wealth Partners64
0.0% of portfolio›$1.6K
Torren Management, LLC44
0.0% of portfolio›$1.1K
First Horizon Corp43
0.0% of portfolio›$1.1K
Covestor Ltd22
0.0% of portfolio›$1
MassMutual Private Wealth & Trust, FSB13
0.0% of portfolio›$318
TD Private Client Wealth LLC12
0.0% of portfolio›$294
GHP Investment Advisors, Inc.1
0.0% of portfolio›$25
StyleTurnoverLocationFiled
Dimensional Fund Advisors LP
2,575,752$63.1M0.0%IndexLowAustin, TX2026-11-04
Congress Asset Management Co
411,201$10.1M0.1%GrowthMediumBoston, MA2026-10-06
Forum Financial Management, LP
237,367$5.8M0.1%ETFLowLombard, IL2026-10-16
Principal Financial Group Inc
134,253$3.3M0.0%CoreLowDes Moines, IA2026-11-02
MSH Capital Advisors LLC
84,826$2.1M0.3%CoreLowScottsdale, AZ2026-11-03
Jcsd Capital, LLC
74,100$1.8M2.8%Deep ValueMediumWalnut Creek, CA2026-10-16
Sara-Bay Financial
59,000$1.4M0.4%MomentumLowSarasota, FL2026-10-21
Creative Planning
57,765$1.4M0.0%IndexVery LowOverland Park, KS2026-11-02
Wealth Enhancement Advisory Services, LLC
46,268$1.2M0.0%CoreLowPlymouth, MN2026-10-13
Citigroup Inc
37,876$927.6K0.0%CoreMediumNew York, NY2026-11-04
Y-Intercept (Hong Kong) Ltd
36,774$900.6K0.0%ValueVery HighHong Kong, South Korea2026-10-16
Hudson Edge Investment Partners Inc.
25,729$630.1K0.1%Deep ValueMediumJersey City, NJ2026-10-28
Kestra Advisory Services, LLC
24,297$595.0K0.0%CoreLowAustin, TX2026-11-02
Lakewood Asset Management LLC
24,185$592.3K0.3%ValueLowNaperville, IL2026-10-26
Virginia Retirement Systems ET Al
24,100$590.2K0.0%CoreMediumRichmond, VA2026-10-28
Integrated Advisors Network LLC
22,566$552.6K0.0%GrowthMediumDallas, TX2026-10-20
Centennial Wealth Advisory LLC
17,598$431.0K0.1%ETFLowTraverse City, MI2026-10-16
4Wealth Advisors, Inc.
16,500$406.7K0.3%ETFMediumBurr Ridge, IL2026-10-13
Sentinel Trust Co LBA
14,051$3440.0%ETFVery LowHouston, TX2026-11-03
Princeton Capital Management LLC
13,770$337.2K0.1%Agg GrowthLowRed Bank, NJ2026-10-27
Arizona State Retirement System
13,759$337.0K0.0%IndexVery LowPhoenix, AZ2026-11-03
Sterling Capital Management LLC
13,486$330.3K0.0%GARPMediumCharlotte, NC2026-10-22
Hohimer Wealth Management, LLC
11,221$274.8K0.0%CoreHighSeattle, WA2026-11-04
Choreo, LLC
9,197$225.2K0.0%IndexLowRockford, IL2026-10-28
Pictet Asset Management Holding SA
8,172$200.1K0.0%GrowthMediumCarouge, Switzerland2026-11-03
Parkside Financial Bank & Trust
4,475$109.6K0.0%CoreVery LowSaint Louis, MO2026-10-27
USA Financial Formulas
2,983$73.1K0.0%ETFVery HighAda, MI2026-10-16
Versant Capital Management, Inc
2,751$67.4K0.0%GARPLowPhoenix, AZ2026-10-02
Parallel Advisors, LLC
2,622$64.2K0.0%IndexLowSan Francisco, CA2026-11-03
Nisa Investment Advisors, LLC
2,271$55.6K0.0%IndexVery LowSt. Louis, MO2026-10-20
State of Alaska, Department of Revenue
1,964$480.0%CoreVery LowJuneau, AK2026-10-15
Pinnacle Wealth Planning Services, Inc.
1,045$25.6K0.0%GARPLowMansfield, OH2026-10-27
KFG LLC
998$24.4K0.0%ETFN/ARapid City, SD2026-11-02
EverSource Wealth Advisors, LLC
995$24.4K0.0%CoreMediumBirmingham, AL2026-11-04
IFP Advisors, Inc
797$19.5K0.0%GrowthLowTampa, FL2026-10-16
Fortitude Family Office, LLC
777$19.0K0.0%ETFMediumScottsdale, AZ2026-10-14
Gamma Investing LLC
668$16.4K0.0%IndexVery LowFoster City, CA2026-10-08
Sfam, LLC
540$13.2K0.0%ETFVery LowElmhurst, IL2026-11-03
Essential Partners LLC
540$13.2K0.0%ValueMediumRancho Santa Fe, CA2026-10-14
Farther Finance Advisors, LLC
530$13.0K0.0%IndexLowSan Francisco, CA2026-10-08
SJS Investment Consulting Inc.
495$12.1K0.0%ETFVery LowSylvania, OH2026-10-26
Pension & Wealth Management Advisors, Inc.
295$7.2K0.0%ETFLowWaltham, MA2026-10-16
Signaturefd, LLC
215$5.3K0.0%IndexLowAtlanta, GA2026-10-23
Harbor Capital Advisors, Inc.
197$50.0%ValueHighChicago, IL2026-10-22
Root Financial Partners, LLC
168$4.1K0.0%ETFMediumEncinitas, CA2026-10-21
Physician Wealth Advisors, Inc.
64$1.6K0.0%ETFMediumMidvale, UT2026-10-20
True Wealth Design, LLC
64$1.6K0.0%ETFMediumAkron, OH2026-10-13
Clark Wealth Partners
64$1.6K0.0%ETFVery LowO'Fallon, IL2026-10-19
Torren Management, LLC
44$1.1K0.0%ETFMediumSan Diego, CA2026-10-29
First Horizon Corp
43$1.1K0.0%CoreLowMemphis, TN2026-10-26
Covestor Ltd
22$10.0%ValueHighLondon, United Kingdom2026-10-30
MassMutual Private Wealth & Trust, FSB
13$3180.0%CoreLowSpringfield, MA2026-10-05
TD Private Client Wealth LLC
12$2940.0%ETFLowNew York, NY2026-10-28
GHP Investment Advisors, Inc.
1$250.0%CoreVery LowDenver, CO2026-10-15