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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 Marinus and Minna B Koster Foundation Rosette M Wills

Rosette M Wills

President at Marinus and Minna B Koster Foundation

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

$17,500
2024

Total compensation

Rosette M Wills has been listed as an employee of Marinus and Minna B Koster Foundation in Form 990 filings since fiscal year 2018. Total compensation for Rosette M Wills has increased by 75% from 2018 to 2024.

Annual compensation details

$17,500
±0%
President
2024
$18k org
2 hrs/wk
$17,500
-6.7%
President
2023
$18k org
2 hrs/wk
$18,750
+25%
President
2022

Total compensation by year

Compare the compensation of Rosette M Wills to:

2024

Other employees at Marinus and Minna B Koster Foundation

Michael T Flynn
Treasurer
$17,500
$17,500 from org—No other comp
Barbara Freedman
Secretary
$17,500
$17,500 from org—No other comp
Miriam Isaacs
Advisor
$3,500
$3,500 from org—No other comp
Sterling E Scroggins
Advisor
$3,500
$3,500 from org—No other comp
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Revisions to this profile

January 25, 2026:
2024 Marinus and Minna B Koster Foundation 990 published
January 25, 2026:
2023 Marinus and Minna B Koster Foundation 990 published
January 25, 2026:
2022 Marinus and Minna B Koster Foundation 990 published

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