Corey A. Chambas
CEO at First Business Financial Services Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: First Business Financial Services Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
First Business Financial Services Inc. April 26, 202499.3%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| May 16, 2026 | First Business Financial Services Inc. | Grant or award | +710 | — | — |
| Apr 10, 2026 | First Business Financial Services Inc. | Grant or award | +10,370 | — | — |
| Apr 10, 2026 | First Business Financial Services Inc. | Shares withheld for tax | −4,875 | $58.60 | $285,675 |
| Feb 16, 2026 | First Business Financial Services Inc. | Shares withheld for tax | −1,531 | $58.36 | $89,349 |
| Nov 12, 2025 | First Business Financial Services Inc. | Gift | −200 | — | — |
| Nov 12, 2025 | First Business Financial Services Inc. | Gift | −200 | — | — |
| Apr 11, 2025 | First Business Financial Services Inc. | Grant or award | +10,240 | — | — |
| Apr 11, 2025 | First Business Financial Services Inc. | Shares withheld for tax | −4,814 | $45.04 | $216,823 |
| Feb 16, 2025 | First Business Financial Services Inc. | Grant or award | +2,080 | — | — |
| Feb 16, 2025 | First Business Financial Services Inc. | Shares withheld for tax | −1,740 | $52.76 | $91,802 |
| Nov 7, 2024 | First Business Financial Services Inc. | Open-market sale | −40,000 | $48.81 | $1,952,400 |
| Apr 19, 2024 | First Business Financial Services Inc. | Grant or award | +15,010 | — | — |
| Apr 19, 2024 | First Business Financial Services Inc. | Shares withheld for tax | −7,055 | $34.30 | $241,987 |
| Feb 16, 2024 | First Business Financial Services Inc. | Grant or award | +3,515 | — | — |
| Feb 16, 2024 | First Business Financial Services Inc. | Shares withheld for tax | −1,989 | $36.06 | $71,723 |
Questions about Corey A. Chambas
What boards is Corey A. Chambas on?
Corey A. Chambas sits on the board of First Business Financial Services Inc.
What company is Corey A. Chambas the CEO of?
Corey A. Chambas is CEO of First Business Financial Services Inc.
How long has Corey A. Chambas served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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