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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees The Sierra Foundation Sean Osterberg

Sean Osterberg

Vice President at The Sierra Foundation

Fiscal year ended June 30, 2024. Published on January 25, 2026.

$0
2024

Total compensation

Sean Osterberg has been listed as an employee of The Sierra Foundation in Form 990 filings since fiscal year 2023.

Annual compensation details

$0
Vice President
2024
$0
Director
2023

Compare the compensation of Sean Osterberg to:

2024

Other employees at The Sierra Foundation

Nicole McManus
Director
$0
Steve Lloyd
Director
$0
Robbie Caire
Treasurer
$0
Peter McManus
President
$0
Mark Schaefer
Secretary
$0
Kathleen Biscoe
Director
$0
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Revisions to this profile

January 25, 2026:
2024 The Sierra Foundation 990 published
January 25, 2026:
2023 The Sierra Foundation 990 published

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