SEC Form 4 · Updated Daily
FBIZ
— FIRST BUSINESS FINANCIAL SERVICES, 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 |
|---|---|---|---|---|
| CHAMBAS COREY A | Director · Officer | 122,790 | 2026-05-16 | A |
| Kilcoyne Gerald L | Director | 66,691 | 2026-05-16 | A |
| MELOY MARK J | Officer | 55,933 | 2025-04-11 | A |
| Seiler David R. | Officer | 41,187 | 2026-05-16 | A |
| SILSETH JOHN M | Director | 35,000 | 2015-02-10 | P |
| SMITH JEROME J | Director | 33,991 | 2018-07-30 | G |
| ROPELLA JAMES F | Officer | 32,924 | 2016-04-01 | D |
| Hartlieb James Edward | Officer | 32,802.874 | 2026-04-10 | A |
| LOSENEGGER MICHAEL J | Officer | 31,354 | 2020-02-16 | A |
| Kauten Ralph R. | Director | 29,756.258 | 2025-07-30 | P |
| Conley Barbara McCarty | Officer | 29,388.02 | 2023-04-17 | A |
| Olszewski Daniel P. | Director | 27,405 | 2026-05-16 | A |
| Batson Charles H | Officer | 24,079 | 2018-05-08 | S |
| Chandler Jodi A | Officer | 22,550 | 2026-08-27 | S |
| Vetta David J | Officer | 22,088 | 2017-02-02 | S |
| Sloane Edward G JR | Officer | 19,012.14 | 2023-02-16 | F |
| EDDY JAN A | Director | 17,831 | 2021-05-16 | A |
| Quade Bradley A | Officer | 17,678 | 2026-04-10 | A |
| Harris John J | Director | 13,925 | 2024-05-16 | A |
| Ovokaitys Daniel | Officer | 11,811 | 2026-04-10 | A |
| VOEKS DEAN W | Director | 11,429 | 2018-05-07 | P |
| Lorenz William Kent | Director | 9,671 | 2026-05-16 | A |
| Spielmann Brian D. | Officer | 8,812 | 2026-04-10 | A |
| Benson Laurie S. | Director | 8,681 | 2026-05-16 | A |
| Keane Timothy J | Director | 8,669.87 | 2021-05-16 | A |
| CHAVARRIA CARLA C | Director | 8,446 | 2026-05-16 | A |
| BURKE JOAN A | Officer | 7,317 | 2018-08-16 | A |
| Garcia Laura M. | Officer | 4,648 | 2026-05-16 | F |
| Gnorski Shauna M | Officer | 4,330 | 2014-11-16 | F |
| Graham Jason R | Director | 3,930 | 2026-05-16 | A |
| Kristufek Niamh M. | Officer | 3,590 | 2026-02-16 | A |
| Stephens Barbara H | Director | 3,500 | 2011-08-24 | P |
| Sanders Carol P | Director | 2,925 | 2024-12-13 | S |
| Crampton Kevin D | Officer | 2,347 | 2026-05-16 | F |
| Bugher Mark D | Director | 2,270 | 2023-05-16 | A |
| MURPHY MICHAEL JOHN | Officer | 1,994 | 2018-08-16 | A |
| Stebbins Peggy J. | Officer | 1,409 | 2020-02-16 | A |
| PAPRITZ DAVID R. | Officer | 1,000 | 2014-11-21 | P |
| Ferris Scott M. | Director | 575 | 2026-08-16 | A |
| Berneking Pamela R. | Officer | 0 | 2015-12-04 | S |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-08-27 | Chandler Jodi A | Open-market sale | 675 | $70.19 | 22,550 |
| 2026-08-16 | Ferris Scott M. | Grant / award | 575 | $0.00 | 575 |
| 2026-06-01 | Ferris Scott M. | — | — | — | 200 |
| 2026-05-16 | Seiler David R. | Grant / award | 3,815 | $0.00 | 41,187 |
| 2026-05-16 | Benson Laurie S. | Grant / award | 710 | $0.00 | 8,681 |
| 2026-05-16 | CHAMBAS COREY A | Grant / award | 710 | $0.00 | 122,790 |
| 2026-05-16 | CHAVARRIA CARLA C | Grant / award | 710 | $0.00 | 8,446 |
| 2026-05-16 | Graham Jason R | Grant / award | 710 | $0.00 | 3,930 |
| 2026-05-16 | Kilcoyne Gerald L | Grant / award | 710 | $0.00 | 66,691 |
| 2026-05-16 | Lorenz William Kent | Grant / award | 710 | $0.00 | 9,671 |
| 2026-05-16 | Olszewski Daniel P. | Grant / award | 710 | $0.00 | 27,405 |
| 2026-05-16 | Crampton Kevin D | Tax withholding | 54 | $53.81 | 2,347 |
| 2026-05-16 | Garcia Laura M. | Tax withholding | 194 | $53.81 | 4,648 |
| 2026-04-10 | CHAMBAS COREY A | Tax withholding | 4,875 | $58.60 | 122,080 |
| 2026-04-10 | CHAMBAS COREY A | Grant / award | 10,370 | $0.00 | 126,955 |
| 2026-04-10 | Chandler Jodi A | Tax withholding | 834 | $58.60 | 23,225 |
| 2026-04-10 | Chandler Jodi A | Grant / award | 2,080 | $0.00 | 24,059 |
| 2026-04-10 | Garcia Laura M. | Tax withholding | 1,108 | $58.60 | 4,842 |
| 2026-04-10 | Garcia Laura M. | Grant / award | 2,500 | $0.00 | 5,950 |
| 2026-04-10 | Hartlieb James Edward | Gift | 127 | — | 31,636.874 |
| 2026-04-10 | Hartlieb James Edward | Tax withholding | 1,039 | $58.60 | 31,763.874 |
| 2026-04-10 | Hartlieb James Edward | Grant / award | 2,730 | $0.00 | 32,802.874 |
| 2026-04-10 | Ovokaitys Daniel | Tax withholding | 1,143 | $58.60 | 10,668 |
| 2026-04-10 | Ovokaitys Daniel | Grant / award | 2,430 | $0.00 | 11,811 |
| 2026-04-10 | Quade Bradley A | Tax withholding | 1,096 | $58.60 | 16,582 |
| 2026-04-10 | Quade Bradley A | Grant / award | 2,740 | $0.00 | 17,678 |
| 2026-04-10 | Seiler David R. | Tax withholding | 1,912 | $58.60 | 37,372 |
| 2026-04-10 | Seiler David R. | Grant / award | 4,780 | $0.00 | 39,284 |
| 2026-04-10 | Spielmann Brian D. | Tax withholding | 1,501 | $58.60 | 7,311 |
| 2026-04-10 | Spielmann Brian D. | Grant / award | 3,190 | $0.00 | 8,812 |
| 2026-02-16 | Crampton Kevin D | Tax withholding | 101 | $58.36 | 2,401 |
| 2026-02-16 | Crampton Kevin D | Grant / award | 610 | $0.00 | 2,502 |
| 2026-02-16 | Kristufek Niamh M. | Tax withholding | 254 | $58.36 | 3,336 |
| 2026-02-16 | Kristufek Niamh M. | Grant / award | 660 | $0.00 | 3,590 |
| 2026-02-16 | Garcia Laura M. | Tax withholding | 398 | $58.36 | 3,450 |
| 2026-02-16 | Garcia Laura M. | Grant / award | 605 | $0.00 | 3,848 |
| 2026-02-16 | Quade Bradley A | Tax withholding | 420 | $58.36 | 14,938 |
| 2026-02-16 | Quade Bradley A | Grant / award | 735 | $0.00 | 15,358 |
| 2026-02-16 | Hartlieb James Edward | Tax withholding | 392 | $58.36 | 30,072.874 |
| 2026-02-16 | Hartlieb James Edward | Grant / award | 715 | $0.00 | 30,464.874 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.