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Disclosery

OSBC OLD SECOND BANCORP INC DEL

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COMMON STOCK (common), issuer CIK 357173

178 managers (184 13F filers) reported a position in OSBC shares at 2026-06-30, 38,827,074 shares in all. 19 filers opened a position and 20 filers sold out during the quarter.

Managers
178
13F filers
184
New
19
Added
78
Reduced
46
Sold out
20
Shares held by filers
38,827,074

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.4,298,683$100M<0.01%+172,43913F-HRTimelineGroup
VANGUARD GROUP INCgroup of 6 filers holding3,421,510$79.8M+48,998Timeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP2,498,671$58.3M0.01%+109,80913F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,839,202$42.9M<0.01%+239,90013F-HRTimelineGroup
Davis Asset Management, L.P.1,800,000$42M1.06%013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC1,783,820$41.6M0.02%+192,87713F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,624,852$37.9M<0.01%-66,67113F-HRTimelineGroup
FJ Capital Management LLC1,460,413$34.1M4.42%-44,68913F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp1,415,165$32.9M0.03%-28,72413F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,349,432$31.5M<0.01%+67,42113F-HRTimelineGroup
KENNEDY CAPITAL MANAGEMENT LLC1,236,983$28.8M0.51%-31,50713F-HRTimeline
BANC FUNDS CO LLC1,034,143$24.1M3.98%+5,00013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …872,651$20.4M0.02%-6,01913F-HRTimelineGroup
Stieven Capital Advisors, L.P.815,328$19M3.63%+41,80013F-HRTimeline
River Street Advisors LLC779,008$18.2M5.35%+32,34813F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP555,408$13M<0.01%-208,93313F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.641,845$12.9M<0.01%-49,00013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO555,602$12.9M<0.01%-145,35113F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…544,345$12.7M<0.01%-313,44013F-HRTimelineGroup
Nuveen, LLCin group TIAA492,162$11.5M<0.01%+72,52013F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC453,323$10.6M0.19%+15,06813F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co431,304$10.1M<0.01%+39413F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC386,234$9.01M<0.01%-5,72613F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/372,648$8.69M<0.01%+41,31813F-HRTimelineGroup
Gator Capital Management, LLC359,730$8.39M1.81%+8,25013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp342,013$7.98M<0.01%+4,74913F-HRTimelineGroup
CONGRESS ASSET MANAGEMENT CO338,650$7.9M0.05%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY318,318$7.42M<0.01%+39,93113F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC304,021$7.09M<0.01%+243,95613F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources259,324$6.05M<0.01%+171,15813F-HRTimelineGroup
Empowered Funds, LLC248,627$5.8M0.03%+15,06813F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…242,278$5.65M0.01%+99,15913F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC225,303$5.25M0.01%+207,23613F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding223,355$5.21M-103,449Timeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …210,745$4.91M<0.01%+69,71913F-HRTimelineGroup
Forum Financial Management, LPin group Forum Financial Management, LP205,673$4.8M0.06%+1213F-HRTimelineGroup
GREAT LAKES ADVISORS, LLC203,909$4.76M0.04%+5,90513F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP200,819$4.68M<0.01%+133,46213F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC167,884$3.92M0.01%-2,76713F-HRTimelineGroup
BLAIR WILLIAM & CO/IL163,228$3.81M0.01%+34513F-HRTimeline
Siena Capital Partners GP, LLC163,038$3.81M0.92%013F-HRTimeline
EJF Capital LP151,358$3.53M2.36%+18813F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC141,914$3.31M<0.01%+2,86013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…135,010$3.15M<0.01%+23,06113F-HRTimelineGroup
Elizabeth Park Capital Advisors, Ltd.129,457$3.02M2.09%-37,00013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO117,666$2.74M<0.01%-85,42213F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.114,326$2.67M<0.01%new13F-HRTimelineGroup
Curi Capital, LLC100,505$2.34M0.04%013F-HRTimeline
Swiss National Bank100,400$2.34M<0.01%+1,70013F-HRTimeline
MENDON CAPITAL ADVISORS CORP100,000$2.33M0.82%013F-HRTimeline
Fisher Asset Management, LLC97,285$2.27M<0.01%013F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP94,347$2.2M<0.01%+75,58713F-HRTimelineGroup
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…88,964$2.07M0.01%-40,41513F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC87,603$2.04M<0.01%+60113F-HRTimelineGroup
MSH Capital Advisors LLC84,826$1.98M0.34%013F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC80,534$1.88M<0.01%+5,44413F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.77,241$1.8M<0.01%-4,37113F-HRTimelineGroup
JCSD Capital, LLC74,100$1.73M2.57%013F-HRTimeline
Quantinno Capital Management LP73,556$1.72M<0.01%+23,67713F-HRTimeline
RHUMBLINE ADVISERS69,998$1.63M<0.01%+3,90313F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC66,312$1.54M<0.01%-18,87113F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/64,272$1.5M<0.01%-54,19313F-HRTimelineGroup
MARTINGALE ASSET MANAGEMENT L P61,224$1.43M0.03%-26,00013F-HRTimeline
Sara-Bay Financial61,000$1.42M0.38%-33,06313F-HRTimeline
HUDSON EDGE INVESTMENT PARTNERS INC.60,706$1.42M0.19%+28,62413F-HRTimeline
Knights of Columbus Asset Advisors LLC57,364$1.34M0.07%-74,07713F-HRTimeline
CITIGROUP INCin group CITIGROUP INC55,100$1.28M<0.01%+17,86913F-HRTimelineGroup
Campbell & CO Investment Adviser LLC54,037$1.26M0.07%+18,59313F-HRTimeline
Creative Planningin group Creative Planning53,848$1.26M<0.01%+6,89913F-HRTimelineGroup
ExodusPoint Capital Management, LP53,769$1.25M0.01%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…51,243$1.19M<0.01%+4,44713F-HR/ATimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\51,034$1.19M<0.01%+4,55713F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding50,693$1.18M-4,265Timeline
IEQ CAPITAL, LLC50,309$1.17M0.01%-2,19813F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/46,957$1.1M<0.01%+5,49413F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…45,547$1.04M<0.01%+2,76313F-HRTimeline
HighTower Advisors, LLC43,563$1.02M<0.01%-28913F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN42,857$999K<0.01%+23,03513F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc40,578$946K<0.01%+47113F-HRTimelineGroup
FMR LLCin group FMR LLC39,922$931K<0.01%+34,08013F-HRTimelineGroup
Aquatic Capital Management LLC37,700$879K0.03%new13F-HRTimeline
Hunter Perkins Capital Management, LLC34,889$814K0.18%-11,29513F-HRTimeline
GSA CAPITAL PARTNERS LLP34,819$812K0.05%new13F-HRTimeline
Sanctuary Advisors, LLC33,909$791K<0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC32,819$765K0.03%+4,51413F-HRTimeline
Rafferty Asset Management, LLC32,388$755K<0.01%-3,30713F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD30,528$712K<0.01%+12,64313F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA30,051$701K<0.01%-1,51813F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…29,641$691K<0.01%+1,58813F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.27,233$635K<0.01%+17,75613F-HRTimelineGroup
Jupiter Topco LLCin group Janus Henderson26,232$612K<0.01%13F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC24,612$574K<0.01%+5,02113F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…23,389$545K<0.01%-25213F-HRTimelineGroup
Lakewood Asset Management LLC22,955$535K0.29%+30413F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC21,221$495K<0.01%-69,00413F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV20,591$480K<0.01%+3,85213F-HR/ATimeline
NICOLET BANKSHARES INCin group NICOLET BANKSHARES INC20,210$469K0.01%013F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC19,309$450K<0.01%+2613F-HRTimelineGroup
Savant Capital, LLC20,218$440K<0.01%+10,13013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND18,766$438K<0.01%+4,40013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS18,727$437K<0.01%+4,97713F-HRTimelineGroup
4WEALTH ADVISORS, INC.18,300$425K0.33%-35013F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC17,570$410K<0.01%-5,72413F-HRTimelineGroup
Centennial Wealth Advisory LLC17,556$409K0.09%+4913F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…17,258$402K<0.01%013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.17,223$402K<0.01%-60513F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd16,728$390K0.01%-35,84813F-HRTimeline
Cetera Investment Advisers15,802$369K<0.01%+4,10013F-HRTimeline
Kestra Advisory Services, LLCin group Kestra Advisory Services, LLC14,958$349K<0.01%+4913F-HRTimelineGroup
Police & Firemen's Retirement System of…14,232$332K<0.01%013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…14,193$331K<0.01%013F-HRTimeline
SENTINEL TRUST CO LBA14,051$328K0.03%013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM13,812$322K<0.01%+6913F-HRTimeline
PRINCETON CAPITAL MANAGEMENT LLC13,770$321K0.07%013F-HRTimeline
Sterling Capital Management LLC13,405$313K0.01%+11,73413F-HRTimeline
CAPTRUST FINANCIAL ADVISORS13,309$310K<0.01%-4,81113F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…12,390$289K<0.01%013F-HRTimeline
Black Maple Capital Management LP12,000$280K0.19%-27,22413F-HRTimeline
Arax Advisory Partners11,778$275K<0.01%+10,35813F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC11,758$274K0.01%new13F-HRTimelineGroup
Stratos Wealth Partners, LTD.in group Stratos Wealth Partners, LTD.11,663$272K<0.01%013F-HRTimelineGroup
CALDWELL SUTTER CAPITAL, INC.11,000$257K0.1%013F-HRTimeline
HOHIMER WEALTH MANAGEMENT, LLC10,957$256K0.03%+4513F-HRTimeline
SG Americas Securities, LLC10,863$253K<0.01%-50813F-HRTimeline
KLP KAPITALFORVALTNING AS10,700$250K<0.01%013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC10,636$248K<0.01%new13F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC10,560$246K<0.01%-1,42213F-HRTimeline
J.W. COLE ADVISORS, INC.10,509$245K<0.01%new13F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC10,472$244K<0.01%-6513F-HRTimelineGroup
CHOREO, LLC9,099$212K<0.01%new13F-HRTimeline
VERITY Wealth Advisors8,815$206K0.12%new13F-HRTimeline
NewEdge Advisors, LLC8,660$202K<0.01%new13F-HRTimeline
TSFG, LLC7,125$166K0.02%013F-HRTimeline
BARTLETT & CO. WEALTH MANAGEMENT LLC6,320$147K<0.01%+2113F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co5,637$131K<0.01%013F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC5,475$128K<0.01%+69913F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,314$101K<0.01%013F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,934$68.4K<0.01%+44313F-HRTimelineGroup
Versant Capital Management, Inc2,751$64.2K0.01%013F-HRTimeline
Parallel Advisors, LLC2,622$61.2K<0.01%013F-HRTimeline
Integrated Wealth Concepts LLC1,868$43.6K<0.01%new13F-HRTimeline
State of Alaska, Department of Revenue1,771$41K<0.01%013F-HRTimeline
HARBOUR INVESTMENTS, INC.1,347$31.4K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP1,053$24.6K<0.01%+1,01713F-HRTimelineGroup
Pinnacle Wealth Planning Services, Inc.1,045$24.4K<0.01%013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\1,002$23.4K<0.01%+1713F-HRTimelineGroup
SFAM, LLC992$23.1K0.02%-4,83513F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…937$21.9K<0.01%-62513F-HRTimelineGroup
IFP Advisors, Inc797$18.6K<0.01%+1413F-HRTimeline
GAMMA Investing LLC650$15.2K<0.01%+1113F-HRTimeline
Allworth Financial LP566$13.2K<0.01%+5813F-HRTimeline
Covestor Ltd566$13K0.01%+8013F-HRTimeline
Essential Partners LLC540$12.6K0.01%-66713F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…400$9.33K<0.01%013F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC369$8.61K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…297$6.93K<0.01%+1413F-HRTimelineGroup
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK288$6.72K<0.01%new13F-HRTimelineGroup
Farther Finance Advisors, LLC232$5.41K<0.01%-3213F-HRTimeline
SIGNATUREFD, LLC215$5.01K<0.01%013F-HRTimeline
Clearstead Advisors, LLC211$4.92K<0.01%new13F-HRTimeline
DANSKE BANK A/S200$4.66K<0.01%013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.178$4.15K<0.01%-813F-HRTimelineGroup
Quarry LP163$3.8K<0.01%-11713F-HRTimeline
Smartleaf Asset Management LLC159$3.69K<0.01%013F-HRTimeline
Fortitude Family Office, LLC155$3.62K<0.01%new13F-HRTimeline
Larson Financial Group LLC128$2.98K<0.01%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…123$2.87K<0.01%-14213F-HRTimelineGroup
Keating Financial Advisory Services, In…76$1.77K<0.01%013F-HRTimeline
True Wealth Design, LLC64$1.49K<0.01%-2813F-HRTimeline
Bruce G. Allen Investments, LLC49$1.14K<0.01%013F-HRTimeline
Torren Management, LLC44$1.03K<0.01%013F-HRTimeline
FIRST HORIZON CORP43$1K<0.01%013F-HRTimeline
Caitong International Asset Management …24$560<0.01%013F-HRTimeline
Physician Wealth Advisors, Inc.15$350<0.01%new13F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC12$280<0.01%013F-HRTimeline
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…5$117<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.5$117<0.01%new13F-HRTimeline
GHP Investment Advisors, Inc.1$24<0.01%013F-HRTimeline