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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 St Mark's School of Southborough Inc. Beatrix Sanders

Beatrix Sanders

Highest compensated employee

Chief Advancement Officer at St Mark's School of Southborough Inc.

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

$322,634
2024

Total compensation

Beatrix Sanders has been listed as an employee of St Mark's School of Southborough Inc. in Form 990 filings since fiscal year 2023. Total compensation for Beatrix Sanders has increased by 124.9% from 2023 to 2024.

Annual compensation details

$322,634
+124.9%
Chief Advancement Officer
2024
$298k org
40 hrs/wk
$26k other
--
$143,466
Chief Advancement Officer
2023
$144k org
40 hrs/wk
$1k other
--

Total compensation by year

Compare the compensation of Beatrix Sanders to:

2024

Other employees at St Mark's School of Southborough Inc.

John C Warren
Head of School
$437,522
$420,736 from orgNo related comp$16,786 other
Robert M Kuklewicz
Chief Financial and Operations Officer
$318,054
$292,756 from orgNo related comp$25,298 other
Kenneth Griffin
Chief Technology Officer
$209,256
$183,958 from orgNo related comp$25,298 other
Stephanie Katz
Major Gifts Director
$204,006
$178,708 from orgNo related comp$25,298 other
Anne Behnke
Admission Director
$169,381
$159,269 from orgNo related comp$10,112 other
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Revisions to this profile

January 25, 2026:
2024 St Mark's School of Southborough Inc. 990 published
January 25, 2026:
2023 St Mark's School of Southborough Inc. 990 published

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