Katherine Widerborg

Fiscal year ended December 31, 2021. Published on January 25, 2026.

2021

Total compensation

Katherine Widerborg has been listed as an employee of The Illinois Surgical Society Inc. in Form 990 filings since at least fiscal year 2016.

Governor

2021

Governor

2020

Board of GOV Ernors

2019

Trustee

2018

Trustee

2017

President

2016

January 25, 2026:

2021 The Illinois Surgical Society Inc. 990 published

January 24, 2026:

2020 The Illinois Surgical Society Inc. 990 published

January 24, 2026:

2019 The Illinois Surgical Society Inc. 990 published

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