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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 Millbrook School John Siegenthaler

John Siegenthaler

Highest compensated employee

Faculty/College Counseling at Millbrook School

Fiscal year ended June 30, 2021. Published on January 25, 2026.

$155,913
2021

Total compensation

John Siegenthaler has been listed as an employee of Millbrook School in Form 990 filings since fiscal year 2021.

Annual compensation details

$155,913
Faculty/College Counseling
2021
$112k org
40 hrs/wk
$45k other
--

Total compensation by year

Compare the compensation of John Siegenthaler to:

2021

Other employees at Millbrook School

Drew Casertano
Headmaster - THRU 6/30/21
$539,800
$429,737 from orgNo related comp$110,063 other
Jonathan Downs
Assistant Headmaster
$316,062
$213,733 from orgNo related comp$102,329 other
Jeffrey Smith
Chief Operating Officer
$241,654
$186,769 from orgNo related comp$54,885 other
Nancy Stahl
Advancement Director
$240,646
$196,168 from orgNo related comp$44,478 other
Robert Anthony
Assistant to Headmaster
$203,976
$152,957 from orgNo related comp$51,019 other
Alan Tousignant
Director of Trevor ZOO
$182,247
$117,786 from orgNo related comp$64,461 other
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Revisions to this profile

January 25, 2026:
2021 Millbrook School 990 published

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