SEC Form 4 · Updated Daily
OSBC
— OLD SECOND BANCORP, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Acker Keith | Director | 792,274 | 2021-12-01 | — |
| Campbell Darin Patrick | Director · Officer | 250,589 | 2026-09-02 | S |
| Kotche Keith | Director | 187,461 | 2026-02-21 | J |
| BONIFAS EDWARD | Director | 175,331 | 2026-02-21 | J |
| MCLEAN HUGH H | Director | 160,351 | 2026-02-21 | J |
| Ladowicz John | Director | 146,757 | 2026-01-15 | S |
| MEYER WILLIAM J | Director | 132,618 | 2015-03-06 | A |
| Finn Barry | Director | 88,737 | 2026-02-21 | J |
| FAGEL MARVIN | Director | 67,471 | 2010-01-19 | A |
| KANE WILLIAM | Director | 60,510 | 2023-02-21 | A |
| PALMER GERALD | Director | 60,189 | 2019-01-02 | A |
| SCHMITZ JAMES C | Director | 56,996 | 2015-03-06 | A |
| LINDGREN KENNETH | Director | 54,251 | 2009-09-01 | M |
| SKOGLUND WILLIAM B | Director | 50,355 | 2023-07-25 | D |
| Suits Duane | Director | 44,883 | 2022-02-15 | A |
| Tapscott James F | Director | 41,273 | 2021-08-19 | P |
| CHEATHAM J DOUGLAS | Director · Officer | 38,779 | 2017-06-30 | A |
| Williams John JR | Director | 36,830 | 2026-02-21 | J |
| MABERRY JESSE | Director | 35,087 | 2006-11-07 | G |
| Eccher James | Officer | 33,590 | 2026-09-30 | J |
| Sloan Rodney | Officer | 31,602 | 2010-09-21 | A |
| Temple Rocks Patti | Director | 20,351 | 2026-02-21 | J |
| Lyons Billy J Jr. | Director | 20,073 | 2026-02-21 | J |
| Gartelmann Richard A JR | Officer | 12,683 | 2026-09-30 | J |
| KLAESER DENNIS L | Director | 10,595 | 2026-02-21 | J |
| ADAMS BRADLEY S. | Officer | 10,221 | 2026-09-30 | J |
| COLLINS GARY S | Director · Officer | 7,125 | 2026-09-30 | J |
| Krasner Mary e | Director | 6,259 | 2009-05-08 | P |
| MCKEE D CHET | Director | 6,076 | 2010-01-19 | A |
| YORK JILL E | Director | 4,319.638 | 2022-02-08 | L |
| Pilmer Donald | Officer | 4,048 | 2026-09-30 | J |
| Gottschalk Keith | Officer | 1,116 | 2020-12-31 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-30 | COLLINS GARY S | J | 30 | $0.00 | 7,125 |
| 2026-09-30 | Pilmer Donald | J | 11 | $0.00 | 4,048 |
| 2026-09-30 | Gartelmann Richard A JR | J | 35 | $0.00 | 12,683 |
| 2026-09-30 | ADAMS BRADLEY S. | J | 28 | $0.00 | 10,221 |
| 2026-09-30 | Eccher James | J | 92 | $0.00 | 33,590 |
| 2026-09-30 | Eccher James | J | 17 | $0.00 | 6,395 |
| 2026-09-23 | COLLINS GARY S | Open-market sale | 16,000 | $24.69 | 14,136 |
| 2026-09-08 | MCLEAN HUGH H | Open-market sale | 25,000 | $25.63 | 135,351 |
| 2026-09-04 | COLLINS GARY S | Open-market sale | 5,000 | $25.70 | 53,136.085 |
| 2026-09-03 | MCLEAN HUGH H | Open-market sale | 25,000 | $25.73 | 135,351 |
| 2026-09-02 | Campbell Darin Patrick | Open-market sale | 24,000 | $25.53 | 250,589 |
| 2026-08-12 | Eccher James | Open-market sale | 19,313 | $25.61 | 303,399 |
| 2026-08-11 | Eccher James | Open-market sale | 55,687 | $25.46 | 322,712 |
| 2026-08-10 | YORK JILL E | L | 11.88 | $25.38 | 4,319.638 |
| 2026-08-10 | Lyons Billy J Jr. | Grant / award | 20 | $25.38 | 20,117 |
| 2026-06-30 | Gartelmann Richard A JR | J | 42 | $0.00 | 12,648 |
| 2026-06-30 | Eccher James | J | 111 | $0.00 | 33,498 |
| 2026-06-30 | Eccher James | J | 21 | $0.00 | 6,378 |
| 2026-06-30 | Pilmer Donald | J | 14 | $0.00 | 4,037 |
| 2026-06-30 | Pilmer Donald | J | 1 | $0.00 | 184 |
| 2026-06-30 | COLLINS GARY S | J | 37 | $0.00 | 7,095 |
| 2026-06-30 | ADAMS BRADLEY S. | J | 34 | $0.00 | 10,193 |
| 2026-05-22 | COLLINS GARY S | Open-market sale | 5,120 | $21.12 | 58,136.085 |
| 2026-05-21 | COLLINS GARY S | Open-market sale | 10,000 | $21.12 | 63,256.085 |
| 2026-05-11 | YORK JILL E | L | 14.377 | $20.90 | 4,319.638 |
| 2026-05-11 | Pilmer Donald | Open-market sale | 25,000 | $20.75 | 48,054 |
| 2026-05-11 | Lyons Billy J Jr. | Open-market buy | 24 | $20.90 | 20,097 |
| 2026-05-08 | COLLINS GARY S | Open-market sale | 5,000 | $21.23 | 73,256.085 |
| 2026-05-08 | COLLINS GARY S | Open-market sale | 10,000 | $21.24 | 30,136 |
| 2026-03-31 | Gartelmann Richard A JR | J | 43 | $0.00 | 12,606 |
| 2026-03-31 | Eccher James | J | 22 | $0.00 | 6,357 |
| 2026-03-31 | Eccher James | J | 369 | $0.00 | 33,387 |
| 2026-03-31 | Pilmer Donald | J | 1 | $0.00 | 183 |
| 2026-03-31 | Pilmer Donald | J | 13 | $0.00 | 4,023 |
| 2026-03-31 | COLLINS GARY S | J | 253 | $0.00 | 7,058 |
| 2026-03-31 | ADAMS BRADLEY S. | J | 35 | $0.00 | 10,159 |
| 2026-03-20 | COLLINS GARY S | Open-market sale | 22,154 | $19.38 | 40,136 |
| 2026-03-02 | Eccher James | Tax withholding | 12,838 | $19.91 | 378,399 |
| 2026-03-02 | Eccher James | Grant / award | 43,818 | $0.00 | 391,237 |
| 2026-03-02 | Gartelmann Richard A JR | Tax withholding | 1,537 | $19.91 | 29,551 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.