Old Second Bancorp's top three insider shareholders as of May 23, 2026 are James Eccher (Chairman And Ceo, 378.40K shares), Darin Patrick Campbell (President, Powersports Lending, 274.59K shares), James Eccher (Chairman And Ceo, 213.29K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Hugh H Mclean | - | 164,635 | 0 | 22 Feb, 2024 |
| Gary S Collins | Vice Chairman | 0 | 82,135 | 31 Dec, 2021 |
| Edward Bonifas | - | 179,615 | 0 | 22 Feb, 2024 |
| William Kane | - | 60,510 | 0 | 23 Feb, 2023 |
| William B Skoglund | Chairman | 0 | 55,408 | 09 Dec, 2022 |
| Dennis L Klaeser | - | 11,941 | 0 | 22 Feb, 2024 |
| Jill E York | - | 15,714 | 0 | 22 Feb, 2024 |
| Barry Finn | - | 93,021 | 0 | 22 Feb, 2024 |
| James Eccher | Chairman And Ceo | 378,399 | 0 | 04 Mar, 2026 |
| John Ladowicz | - | 0 | 144,892 | 16 Jan, 2026 |
| Duane Suits | - | 44,883 | 0 | 15 Feb, 2022 |
| Bradley S. Adams | Cfo Coo | 160,401 | 0 | 04 Mar, 2026 |
| James F Tapscott | - | 41,273 | 0 | 21 Feb, 2023 |
| Rocks Patti Temple | - | 24,635 | 0 | 22 Feb, 2024 |
| Donald Pilmer | Evp | 73,054 | 0 | 04 Mar, 2026 |
| Billy J Jr. Lyons | - | 16,996 | 0 | 10 Feb, 2026 |
| Richard A Jr Gartelmann | Evp | 29,551 | 0 | 04 Mar, 2026 |
| John Jr Williams | - | 41,114 | 0 | 22 Feb, 2024 |
| Keith Kotche | - | 191,745 | 0 | 22 Feb, 2024 |
| Darin Patrick Campbell | President, Powersports Lending | 274,589 | 0 | 19 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 31 Mar, 2026 | Donald Pilmer | Old Second Bancorp, Inc. Common Stock | A | 13 | $0.00 | 4,023 | I | J |
| 31 Mar, 2026 | Richard A Jr Gartelmann | Old Second Bancorp, Inc. Common Stock | A | 43 | $0.00 | 12,606 | I | J |
| 31 Mar, 2026 | Gary S Collins | Old Second Bancorp, Inc. Common Stock | A | 253 | $0.00 | 7,058 | I | J |
| 31 Mar, 2026 | James Eccher | Old Second Bancorp, Inc. Common Stock | A | 369 | $0.00 | 33,387 | I | J |
| 31 Mar, 2026 | Donald Pilmer | Old Second Bancorp, Inc. Common Stock | A | 13 | $0.00 | 4,023 | I | J |
| 31 Mar, 2026 | Bradley S. Adams | Old Second Bancorp, Inc. Common Stock | A | 35 | $0.00 | 10,159 | I | J |
| 31 Mar, 2026 | Donald Pilmer | Old Second Bancorp, Inc. Common Stock | A | 1 | $0.00 | 183 | I | J |
| 31 Mar, 2026 | James Eccher | Old Second Bancorp, Inc. Common Stock | A | 22 | $0.00 | 6,357 | I | J |
| 31 Mar, 2026 | Donald Pilmer | Old Second Bancorp, Inc. Common Stock | A | 1 | $0.00 | 183 | I | J |
| 20 Mar, 2026 | Gary S Collins | Old Second Bancorp, Inc. Common Stock | D | 22,154 | $19.38 | 40,136 | D | S |
| 02 Mar, 2026 | Gary S Collins | Old Second Bancorp, Inc. Common Stock | A | 14,432 | $0.00 | 5,462 | D | A |
| 02 Mar, 2026 | Richard A Jr Gartelmann | Old Second Bancorp, Inc. Common Stock | A | 4,523 | $0.00 | 26,565 | D | A |
| 02 Mar, 2026 | Donald Pilmer | Old Second Bancorp, Inc. Common Stock | A | 9,201 | $0.00 | 66,573 | D | A |
| 02 Mar, 2026 | Donald Pilmer | Old Second Bancorp, Inc. Common Stock | A | 9,201 | $0.00 | 66,573 | D | A |
| 02 Mar, 2026 | James Eccher | Old Second Bancorp, Inc. Common Stock | A | 43,818 | $0.00 | 391,237 | D | A |
| 02 Mar, 2026 | Bradley S. Adams | Old Second Bancorp, Inc. Common Stock | A | 15,657 | $0.00 | 164,988 | D | A |
| 02 Mar, 2026 | Bradley S. Adams | Old Second Bancorp, Inc. Common Stock | D | 4,587 | $19.91 | 160,401 | D | F |
| 02 Mar, 2026 | James Eccher | Old Second Bancorp, Inc. Common Stock | D | 12,838 | $19.91 | 378,399 | D | F |
| 02 Mar, 2026 | Richard A Jr Gartelmann | Old Second Bancorp, Inc. Common Stock | D | 1,537 | $19.91 | 29,551 | D | F |
| 02 Mar, 2026 | Donald Pilmer | Old Second Bancorp, Inc. Common Stock | D | 2,720 | $19.91 | 73,054 | D | F |