Old Second Bancorp, Inc. (OSBC) Insider Trading

Over the last 3 months, OSBC insiders made 0 open-market buys and 2 sales, a net sale of -$1.9M (SEC Form 4). Over the last 6 months, 139 institutions increased and 116 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
2
Net (3m)
-$1.9M
Insider trades by month Buys Sells
Dec
Jan
Feb
Mar
May
Aug
Context3-month price +18.2%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Aug 13, 2026Eccher Jamesdirector, officer: CHAIRMAN AND CEOSell19,313$25.61
Aug 12, 2026Eccher Jamesdirector, officer: CHAIRMAN AND CEOSell55,687$25.46
Aug 11, 2026Lyons Billy J Jr.directorGrant20$25.38
May 26, 2026COLLINS GARY Sdirector, officer: VICE CHAIRMANSell5,120$21.12
May 21, 2026COLLINS GARY Sdirector, officer: VICE CHAIRMANSell10,000$21.12
May 12, 2026Lyons Billy J Jr.directorBuy24$20.90
May 11, 2026Pilmer Donaldofficer: EVPSell25,000$20.75
May 11, 2026COLLINS GARY Sdirector, officer: VICE CHAIRMANSell10,000$21.24
May 11, 2026COLLINS GARY Sdirector, officer: VICE CHAIRMANSell5,000$21.23
Mar 23, 2026COLLINS GARY Sdirector, officer: VICE CHAIRMANSell22,154$19.38
Mar 4, 2026COLLINS GARY Sdirector, officer: VICE CHAIRMANGrant14,432
Mar 4, 2026COLLINS GARY Sdirector, officer: VICE CHAIRMANTax4,228$19.91
Mar 4, 2026Eccher Jamesdirector, officer: CHAIRMAN AND CEOTax12,838$19.91
Mar 4, 2026Eccher Jamesdirector, officer: CHAIRMAN AND CEOGrant43,818
Mar 4, 2026Pilmer Donaldofficer: EVPGrant9,201
Mar 4, 2026Gartelmann Richard A JRofficer: EVPGrant4,523
Mar 4, 2026ADAMS BRADLEY S.officer: CFO & COOTax4,587$19.91
Mar 4, 2026ADAMS BRADLEY S.officer: CFO & COOGrant15,657
Mar 4, 2026Gartelmann Richard A JRofficer: EVPTax1,537$19.91
Mar 4, 2026Pilmer Donaldofficer: EVPTax2,720$19.91
Feb 24, 2026Temple Rocks PattidirectorGrant3,121
Feb 24, 2026Williams John JRdirectorTax3,077$20.57
Feb 24, 2026YORK JILL EdirectorTax3,077$20.57
Feb 24, 2026Eccher Jamesdirector, officer: CHAIRMAN AND CEOTax7,515$20.57
Feb 24, 2026Gartelmann Richard A JRofficer: EVPTax894$20.57
Feb 24, 2026ADAMS BRADLEY S.officer: CFO & COOGrant25,428
Feb 24, 2026Lyons Billy J Jr.directorTax3,077$20.57
Feb 24, 2026Gartelmann Richard A JRofficer: EVPGrant5,912
Feb 24, 2026Williams John JRdirectorGrant3,121
Feb 24, 2026Temple Rocks PattidirectorTax3,077$20.57

Source: OSBC SEC Form 4 filings, latest Aug 13, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their OSBC positions over the last 6 months (SEC Form 13F).

Increased
139
New positions
45
Reduced
116
Sold out
20
Largest moves
InstitutionActionSharesFiled
BlackRock, Inc.Increased4.3MAug 7, 2026
BLACKROCK, INC.Reduced4.1MMay 13, 2026
DIMENSIONAL FUND ADVISORS LPIncreased2.5MAug 11, 2026
DIMENSIONAL FUND ADVISORS LPIncreased2.4MMay 7, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position2.3MMay 15, 2026
VANGUARD CAPITAL MANAGEMENT LLCReduced2.2MAug 13, 2026
STATE STREET CORPIncreased1.8MAug 7, 2026
Davis Asset Management, L.P.Unchanged1.8MAug 12, 2026
DAVIS ASSET MANAGEMENT, L.P.Increased1.8MMay 15, 2026
AMERICAN CENTURY COMPANIES INCIncreased1.8MAug 12, 2026
GOLDMAN SACHS GROUP INCReduced1.7MMay 15, 2026
GOLDMAN SACHS GROUP INCReduced1.6MAug 14, 2026
STATE STREET CORPIncreased1.6MMay 15, 2026
AMERICAN CENTURY COMPANIES INCIncreased1.6MMay 15, 2026
FJ CAPITAL MANAGEMENT LLCReduced1.5MMay 15, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.