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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 Principia Corporation Marshall Ingwerson

Marshall Ingwerson

Former

Chief Executive (Thru June 2020) at The Principia Corporation

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

$339,696
2021

Total compensation

Marshall Ingwerson has been listed as an employee of The Principia Corporation in Form 990 filings since fiscal year 2017.

Annual compensation details

$339,696
-4.4%
Chief Executive (Thru June 2020)
2021
$323k org
40 hrs/wk
$17k other
--
$355,280
+0.7%
Chief Executive (Thru May 2020)
2020
$327k org
40 hrs/wk
$30k other
--

Total compensation by year

Compare the compensation of Marshall Ingwerson to:

2021

Other employees at The Principia Corporation

Charles T Brantingham
Head of School (Thru June 2021)
$373,910
$234,188 from orgNo related comp$139,722 other
Howard E Berner Jr
Chief Investment Officer
$310,044
$282,905 from orgNo related comp$27,139 other
Lee Barron
Assistant Secretary/General Counsel
$264,415
$236,622 from orgNo related comp$27,793 other
Peter Dry
Assist. Head of School Innovation and Strategy (Thru June 2021)
$237,143
$176,949 from orgNo related comp$60,194 other
David Walters
Chief Financial Officer
$222,455
$208,521 from orgNo related comp$13,934 other
John Williams
College President
$218,242
$196,364 from orgNo related comp$21,878 other
Barbara Blackwell
Assist. Secretary/Chief Advancement Officer
$213,761
$169,175 from orgNo related comp$44,586 other
Meggan Madden
Academic Dean
$190,520
$172,095 from orgNo related comp$18,425 other
Maya Dietz
Dean of Students
$184,341
$137,227 from orgNo related comp$47,114 other
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Revisions to this profile

January 25, 2026:
2021 The Principia Corporation 990 published
January 24, 2026:
2020 The Principia Corporation 990 published
January 24, 2026:
2019 The Principia Corporation 990 published

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