Old Second Bancorp's three largest insider shareholders as of April 11, 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 |
|---|---|---|---|---|
| James Eccher | Chairman And Ceo | 378,399 | 0 | 04 Mar, 2026 |
| Darin Patrick Campbell | President, Powersports Lending | 274,589 | 0 | 19 Feb, 2026 |
| James Eccher | Chairman And Ceo | 213,290 | 0 | 24 Feb, 2026 |
| Keith Kotche | - | 191,745 | 0 | 22 Feb, 2024 |
| Edward Bonifas | - | 179,615 | 0 | 22 Feb, 2024 |
| Hugh H Mclean | - | 164,635 | 0 | 22 Feb, 2024 |
| Bradley S. Adams | Cfo Coo | 160,401 | 0 | 04 Mar, 2026 |
| John Ladowicz | - | 0 | 144,892 | 16 Jan, 2026 |
| Bradley S. Adams | Cfo Coo | 93,926 | 0 | 24 Feb, 2026 |
| Barry Finn | - | 93,021 | 0 | 22 Feb, 2024 |
| Gary S Collins | Vice Chairman | 0 | 76,768 | 01 Dec, 2021 |
| Donald Pilmer | Evp | 73,054 | 0 | 04 Mar, 2026 |
| Gary S Collins | Vice Chairman | 0 | 61,768 | 24 Apr, 2024 |
| William Kane | - | 60,510 | 0 | 23 Feb, 2023 |
| William B Skoglund | Chairman | 0 | 55,408 | 09 Dec, 2022 |
| William B Skoglund | Chairman | 50,355 | 0 | 25 Jul, 2023 |
| Gary S Collins | Vice Chairman | 45,558 | 0 | 24 Feb, 2026 |
| Duane Suits | - | 44,883 | 0 | 15 Feb, 2022 |
| Donald Pilmer | Evp | 44,754 | 0 | 24 Feb, 2026 |
| James F Tapscott | - | 41,273 | 0 | 21 Feb, 2023 |
| John Jr Williams | - | 41,114 | 0 | 22 Feb, 2024 |
| Gary S Collins | Vice Chairman | 40,136 | 0 | 23 Mar, 2026 |
| James Eccher | Chairman And Ceo | 0 | 39,744 | 02 Apr, 2026 |
| James Eccher | Executive Officer | 0 | 36,080 | 31 Dec, 2021 |
| John Ladowicz | - | 32,931 | 0 | 22 Feb, 2024 |
| Darin Patrick Campbell | President, Powersports Lending | 0 | 31,159 | 06 Nov, 2025 |
| Richard A Jr Gartelmann | Evp | 29,551 | 0 | 04 Mar, 2026 |
| Rocks Patti Temple | - | 24,635 | 0 | 22 Feb, 2024 |
| Richard A Jr Gartelmann | Evp | 23,879 | 0 | 24 Feb, 2026 |
| Rocks Patti Temple | - | 0 | 18,679 | 26 Dec, 2024 |
| Billy J Jr. Lyons | - | 16,996 | 0 | 10 Feb, 2026 |
| Jill E York | - | 15,714 | 0 | 22 Feb, 2024 |
| Richard A Jr Gartelmann | Evp | 0 | 12,606 | 02 Apr, 2026 |
| Dennis L Klaeser | - | 11,941 | 0 | 22 Feb, 2024 |
| Dennis L Klaeser | - | 10,595 | 0 | 25 Feb, 2026 |
| Rocks Patti Temple | - | 10,595 | 0 | 24 Feb, 2026 |
| Keith Kotche | - | 10,595 | 0 | 24 Feb, 2026 |
| John Jr Williams | - | 10,595 | 0 | 24 Feb, 2026 |
| Jill E York | - | 10,595 | 0 | 24 Feb, 2026 |
| Edward Bonifas | - | 10,595 | 0 | 25 Feb, 2026 |
| Hugh H Mclean | - | 10,595 | 0 | 24 Feb, 2026 |
| Barry Finn | - | 10,595 | 0 | 24 Feb, 2026 |
| Billy J Jr. Lyons | - | 10,595 | 0 | 24 Feb, 2026 |
| Darin Patrick Campbell | President, Powersports Lending | 10,562 | 0 | 24 Feb, 2026 |
| Bradley S. Adams | Cfo Coo | 0 | 10,159 | 02 Apr, 2026 |
| Bradley S. Adams | Cfo | 0 | 9,578 | 31 Dec, 2021 |
| Gary S Collins | Vice Chairman | 0 | 7,058 | 02 Apr, 2026 |
| Richard A Jr Gartelmann | Evp | 0 | 6,873 | 31 Dec, 2021 |
| Gary S Collins | Vice Chairman | 0 | 5,367 | 31 Dec, 2021 |
| Donald Pilmer | Evp | 0 | 4,206 | 02 Apr, 2026 |
| Donald Pilmer | Evp | 0 | 3,967 | 31 Dec, 2021 |
* 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 | Richard A Jr Gartelmann | Old Second Bancorp, Inc. Common Stock | A | 43 | $0.00 | 12,606 | I | J |
| 31 Mar, 2026 | James Eccher | Old Second Bancorp, Inc. Common Stock | A | 369 | $0.00 | 33,387 | 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 | Gary S Collins | Old Second Bancorp, Inc. Common Stock | A | 253 | $0.00 | 7,058 | I | J |
| 31 Mar, 2026 | Donald Pilmer | Old Second Bancorp, Inc. Common Stock | A | 13 | $0.00 | 4,023 | 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 |
| 20 Mar, 2026 | Gary S Collins | Old Second Bancorp, Inc. Common Stock | D | 22,154 | $19.38 | 40,136 | D | S |
| 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 | 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 | Gary S Collins | Old Second Bancorp, Inc. Common Stock | A | 14,432 | $0.00 | 5,462 | 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 | Richard A Jr Gartelmann | Old Second Bancorp, Inc. Common Stock | D | 1,537 | $19.91 | 29,551 | D | F |
| 02 Mar, 2026 | Gary S Collins | Old Second Bancorp, Inc. Common Stock | D | 4,228 | $19.91 | 15,666 | 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 | Donald Pilmer | Old Second Bancorp, Inc. Common Stock | D | 2,720 | $19.91 | 73,054 | D | F |
| 17 Feb, 2026 | Edward Bonifas | Restricted Stock Units | A | 3,121 | $0.00 | 13,672 | D | A |
| 17 Feb, 2026 | Dennis L Klaeser | Restricted Stock Units | A | 3,121 | $0.00 | 13,672 | D | A |