Old Second Bancorp, Inc. (OSBC) Insider Trading
Over the last 3 months, OSBC insiders made 1 open-market buy and 5 sales, a net sale of -$1.2M (SEC Form 4). Over the last 6 months, 141 institutions increased and 126 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
1
Sells (3m)
5
Net (3m)
-$1.2M
Insiders buyingFirst buy in 3 quarters
Insider trades by month Buys Sells
Nov
Dec
Jan
Feb
Mar
May
Context3-month price +15.7%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 26, 2026 | COLLINS GARY Sdirector, officer: VICE CHAIRMAN | Sell | 5,120 | $21.12 |
| May 21, 2026 | COLLINS GARY Sdirector, officer: VICE CHAIRMAN | Sell | 10,000 | $21.12 |
| May 12, 2026 | Lyons Billy J Jr.director | Buy | 24 | $20.90 |
| May 11, 2026 | COLLINS GARY Sdirector, officer: VICE CHAIRMAN | Sell | 5,000 | $21.23 |
| May 11, 2026 | Pilmer Donaldofficer: EVP | Sell | 25,000 | $20.75 |
| May 11, 2026 | COLLINS GARY Sdirector, officer: VICE CHAIRMAN | Sell | 10,000 | $21.24 |
| Mar 23, 2026 | COLLINS GARY Sdirector, officer: VICE CHAIRMAN | Sell | 22,154 | $19.38 |
| Mar 4, 2026 | Pilmer Donaldofficer: EVP | Tax | 2,720 | $19.91 |
| Mar 4, 2026 | COLLINS GARY Sdirector, officer: VICE CHAIRMAN | Tax | 4,228 | $19.91 |
| Mar 4, 2026 | COLLINS GARY Sdirector, officer: VICE CHAIRMAN | Grant | 14,432 | — |
| Mar 4, 2026 | Pilmer Donaldofficer: EVP | Grant | 9,201 | — |
| Mar 4, 2026 | ADAMS BRADLEY S.officer: CFO & COO | Grant | 15,657 | — |
| Mar 4, 2026 | Eccher Jamesdirector, officer: CHAIRMAN AND CEO | Grant | 43,818 | — |
| Mar 4, 2026 | ADAMS BRADLEY S.officer: CFO & COO | Tax | 4,587 | $19.91 |
| Mar 4, 2026 | Gartelmann Richard A JRofficer: EVP | Tax | 1,537 | $19.91 |
| Mar 4, 2026 | Gartelmann Richard A JRofficer: EVP | Grant | 4,523 | — |
| Mar 4, 2026 | Eccher Jamesdirector, officer: CHAIRMAN AND CEO | Tax | 12,838 | $19.91 |
| Feb 24, 2026 | MCLEAN HUGH Hdirector | Grant | 3,121 | — |
| Feb 24, 2026 | Williams John JRdirector | Tax | 3,077 | $20.57 |
| Feb 24, 2026 | Williams John JRdirector | Grant | 3,121 | — |
| Feb 24, 2026 | Lyons Billy J Jr.director | Tax | 3,077 | $20.57 |
| Feb 24, 2026 | BONIFAS EDWARDdirector | Grant | 3,121 | — |
| Feb 24, 2026 | ADAMS BRADLEY S.officer: CFO & COO | Tax | 2,923 | $20.57 |
| Feb 24, 2026 | COLLINS GARY Sdirector, officer: VICE CHAIRMAN | Grant | 8,858 | — |
| Feb 24, 2026 | KLAESER DENNIS Ldirector | Grant | 3,121 | — |
| Feb 24, 2026 | Eccher Jamesdirector, officer: CHAIRMAN AND CEO | Grant | 54,010 | — |
| Feb 24, 2026 | MCLEAN HUGH Hdirector | Tax | 3,077 | $20.57 |
| Feb 24, 2026 | YORK JILL Edirector | Grant | 3,121 | — |
| Feb 24, 2026 | Kotche Keithdirector | Tax | 3,077 | $20.57 |
| Feb 24, 2026 | Campbell Darin Patrickdirector, officer: President, Powersports Lending | Grant | 10,562 | — |
Source: OSBC SEC Form 4 filings, latest May 26, 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
141
New positions
46
Reduced
126
Sold out
47
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 4.5M | May 15, 2026 |
| BLACKROCK, INC. | Increased | 4.2M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 4.1M | May 13, 2026 |
| VANGUARD GROUP INC | Increased | 3.3M | Jan 29, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 2.4M | May 7, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 2.3M | Feb 12, 2026 |
| FJ CAPITAL MANAGEMENT LLC | Reduced | 1.8M | Feb 13, 2026 |
| DAVIS ASSET MANAGEMENT, L.P. | Increased | 1.8M | May 15, 2026 |
| DAVIS ASSET MANAGEMENT, L.P. | Increased | 1.7M | Feb 13, 2026 |
| GOLDMAN SACHS GROUP INC | Reduced | 1.7M | May 15, 2026 |
| STATE STREET CORP | Increased | 1.6M | May 15, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 1.6M | May 15, 2026 |
| STATE STREET CORP | Increased | 1.5M | Feb 13, 2026 |
| FJ CAPITAL MANAGEMENT LLC | Reduced | 1.5M | May 15, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 1.5M | Feb 13, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.