Corporate Board Profile
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| Filing Date | Source Excerpt |
|---|---|
| 2009-03-23 | Mr. Koertner joined us in 1998 as senior vice president, treasurer and chief financial officer and became our president and chief executive officer in December 2003. Prior to joining us, Mr. Koertner served as vice president at Central Illinois Public Service Company from 1989 until 1998. |
| 2010-03-23 | Mr. Koertner joined us in 1998 as senior vice president, treasurer and chief financial officer and became our president and chief executive officer in December 2003. Prior to joining us, Mr. Koertner served as vice president at Central Illinois Public Service Company from 1989 until 1998. |
| 2011-03-14 | Mr. Koertner holds a Bachelor's of Science degree in finance from Northern Illinois University and a Masters of Business Administration degree from the University of Illinois. |
| 2012-03-08 | Mr. Koertner holds a Bachelor's of Science degree in finance from Northern Illinois University and a Masters of Business Administration degree from the University of Illinois. |
| 2013-03-07 | Mr. Koertner holds a Bachelor of Science degree in finance from Northern Illinois University and a Masters of Business Administration degree from the University of Illinois. |
| 2014-03-10 | Mr. Koertner holds a Bachelor of Science degree in finance from Northern Illinois University and a Masters of Business Administration degree from the University of Illinois. |
| 2015-03-12 | Mr. Koertner holds a Bachelor of Science degree in finance from Northern Illinois University and a Masters of Business Administration degree from the University of Illinois. |
| 2016-03-23 | Mr. Koertner holds a Bachelor of Science degree in finance from Northern Illinois University and a Masters of Business Administration degree from the University of Illinois. |
| 2017-03-10 | Mr. Koertner holds a Bachelor of Science degree in finance from Northern Illinois University and a Masters of Business Administration degree from the University of Illinois. |
| 2018-03-08 | Mr. Koertner holds a Bachelor of Science degree in finance from Northern Illinois University and a Masters of Business Administration degree from the University of Illinois. |
| 2019-03-07 | Mr. Koertner holds a Bachelor of Science degree in finance from Northern Illinois University and a Master of Business Administration degree from the University of Illinois. |
| 2020-03-05 | Mr. Koertner holds a Bachelor of Science degree in finance from Northern Illinois University and a Master of Business Administration degree from the University of Illinois. |
| 2021-03-04 | Mr. Koertner holds a Bachelor of Science degree in finance from Northern Illinois University and a Master of Business Administration degree from the University of Illinois. |
| 2022-03-02 | William A. Koertner is not considered an independent director due to his prior employment with MYR Group, which ended on March 31, 2018. |
Data sourced from SEC filings. Last updated: 2025-07-01