William Kalbacher

Chief Executive Officer at The Clamshell Foundation Inc.

Fiscal year ended December 31, 2024. Published on January 25, 2026.

2024

Total compensation

William Kalbacher has been listed as an employee of The Clamshell Foundation Inc. in Form 990 filings since at least fiscal year 2016.

Annual compensation details

Chief Executive Officer

2024

Chief Executive Officer

2023

Chief Executive Officer

2022

Chief Executive Officer

2021

Chief Executive Officer

2020

Chief Executive Officer

2019

Chief Executive Officer

2018

Chief Executive Officer

2017

Chief Operating Officer

2016

Revisions to this profile

January 25, 2026:

2024 The Clamshell Foundation Inc. 990 published

January 25, 2026:

2023 The Clamshell Foundation Inc. 990 published

January 25, 2026:

2022 The Clamshell Foundation Inc. 990 published

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William Kalbacher

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