Over the 90-day window ending December 31, 2025, First Business Financial Services's three dominant insider ownership positions are held by Ceo Corey A Chambas (118.12K shares), Evp Mark J Meloy (54.98K shares), Pres&Ceo First Business Bank James Edward Hartlieb (29.75K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Corey A Chambas | Ceo | 118,116 | 14 Nov, 2025 |
| Gerald L Kilcoyne | 65,981 | 20 May, 2025 | |
| Mark J Meloy | Evp | 54,981 | 15 Apr, 2025 |
| David R. Seiler | President And Coo | 33,514 | 15 Apr, 2025 |
| Ralph R. Kauten | 29,756 | 01 Aug, 2025 | |
| James Edward Hartlieb | Pres&Ceo First Business Bank | 29,750 | 19 Aug, 2025 |
| Barbara Mccarty Conley | General Counsel | 28,364 | 19 Apr, 2023 |
| Daniel P. Olszewski | 26,695 | 20 May, 2025 | |
| Jodi A Chandler | Chief Human Resources Officer | 21,742 | 15 Apr, 2025 |
| Edward G Jr Sloane | Chief Financial Officer | 19,012 | 20 Feb, 2023 |
| Jan A Eddy | 17,831 | 18 May, 2021 | |
| Bradley A Quade | Chief Credit Officer | 14,623 | 15 Apr, 2025 |
| John J Harris | 13,925 | 20 May, 2024 | |
| Daniel Ovokaitys | Chief Information Officer | 9,192 | 15 Apr, 2025 |
| William Kent Lorenz | 8,961 | 20 May, 2025 | |
| Timothy J Keane | 8,670 | 18 May, 2021 | |
| Laurie S. Benson | 7,971 | 20 May, 2025 | |
| Carla C Chavarria | 7,736 | 20 May, 2025 | |
| Brian D. Spielmann | Cfo | 5,350 | 19 Feb, 2025 |
| Laura M. Garcia | Chief Risk Officer | 3,243 | 20 May, 2025 |
| Jason R Graham | 3,220 | 01 Aug, 2025 | |
| Carol P Sanders | 2,925 | 17 Dec, 2024 | |
| Mark D Bugher | 2,270 | 18 May, 2023 | |
| Kevin D Crampton | Chief Accounting Officer | 1,892 | 10 Nov, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 12 Nov, 2025 | Corey A Chambas | Common Stock | D | 200 | - | 118,316 | D | G |
| 12 Nov, 2025 | Corey A Chambas | Common Stock | D | 200 | - | 118,116 | D | G |
| 07 Nov, 2025 | Kevin D Crampton | Common Stock | A | 71 | $51.40 | 1,892 | D | P |
| 16 Aug, 2025 | James Edward Hartlieb | - | - | 29,750 | D | |||
| 16 Aug, 2025 | James Edward Hartlieb | Common Stock | D | 104 | $49.54 | 29,750 | D | F |
| 30 Jul, 2025 | Jason R Graham | Common Stock | A | 1,000 | $47.86 | 3,220 | D | P |
| 30 Jul, 2025 | Ralph R. Kauten | - | - | 29,756 | D | |||
| 30 Jul, 2025 | Ralph R. Kauten | Common Stock | A | 10,000 | $47.80 | 29,756 | D | P |
| 16 May, 2025 | Laurie S. Benson | - | - | 7,971 | D | |||
| 16 May, 2025 | Laura M. Garcia | Common Stock | D | 194 | $49.38 | 3,243 | D | F |
| 16 May, 2025 | Daniel P. Olszewski | Common Stock | A | 620 | $0.00 | 26,695 | D | A |
| 16 May, 2025 | Gerald L Kilcoyne | Common Stock | A | 620 | $0.00 | 65,981 | D | A |
| 16 May, 2025 | Kevin D Crampton | Common Stock | D | 56 | $49.38 | 1,821 | D | F |
| 16 May, 2025 | Laurie S. Benson | Common Stock | A | 620 | $0.00 | 7,971 | D | A |
| 16 May, 2025 | William Kent Lorenz | Common Stock | A | 620 | $0.00 | 8,961 | D | A |
| 16 May, 2025 | Jason R Graham | Common Stock | A | 620 | $0.00 | 2,220 | D | A |
| 16 May, 2025 | Carla C Chavarria | Common Stock | A | 620 | $0.00 | 7,736 | D | A |
| 16 May, 2025 | Ralph R. Kauten | Common Stock | A | 620 | $0.00 | 19,756 | D | A |
| 11 Apr, 2025 | Mark J Meloy | Common Stock | A | 2,720 | $0.00 | 55,933 | D | A |
| 11 Apr, 2025 | James Edward Hartlieb | Common Stock | A | 2,710 | $0.00 | 30,885 | D | A |