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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 Masters School Seth Marx

Seth Marx

Highest compensated employee

Associate HEAD of School for Institutional Advanc at Masters School

Fiscal year ended June 30, 2023. Published on January 25, 2026.

$302,754
2023

Total compensation

Seth Marx has been listed as an employee of Masters School in Form 990 filings since fiscal year 2020. Total compensation for Seth Marx has increased by 20.1% from 2020 to 2023.

Annual compensation details

$302,754
+16.3%
Associate HEAD of School for Institutional Advanc
2023
$267k org
40 hrs/wk
$37k other
--
$260,283
-3.2%
Director of Institutional Advancement
2022
$235k org
40 hrs/wk
$26k other
--

Total compensation by year

Compare the compensation of Seth Marx to:

2023

Other employees at Masters School

Laura Danforth
Head of School
$929,465
$646,761 from orgNo related comp$282,704 other
Edward Biddle
Former Chief Financial Officer
$230,477
$191,251 from orgNo related comp$39,226 other
Tasha Elsbach
Head of Middle School
$210,504
$174,423 from orgNo related comp$36,081 other
Daniel Pereira
Operations Director
$209,526
$182,166 from orgNo related comp$27,360 other
Emma Katznelson
Director of Enrollment MAN
$194,425
$179,511 from orgNo related comp$14,914 other
Peter Newcomb
HEAD of Upperschool
$178,449
$164,012 from orgNo related comp$14,437 other
Andrew Schneider
Chief Financial Officer
$167,817
$151,730 from orgNo related comp$16,087 other
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Revisions to this profile

January 25, 2026:
2023 Masters School 990 published
January 25, 2026:
2022 Masters School 990 published
January 25, 2026:
2021 Masters School 990 published

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