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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 Hackley School Michael Wirtz

Michael Wirtz

Officer

HEAD of School (Thru 6/30/23) at Hackley School

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

$462,919
2024

Total compensation

Michael Wirtz has been listed as an employee of Hackley School in Form 990 filings since fiscal year 2017. Total compensation for Michael Wirtz has increased by 146.8% from 2017 to 2024.

Annual compensation details

$462,919
-14.7%
HEAD of School (Thru 6/30/23)
2024
$433k org
40 hrs/wk
$31k other
--
$542,550
+5.1%
HEAD of School (Thru 6/30/23)
2023
$440k org
50 hrs/wk
$103k other
--

Total compensation by year

Compare the compensation of Michael Wirtz to:

2024

Other employees at Hackley School

Erin Bernstein
Chief Financial Officer
$327,100
$282,213 from orgNo related comp$44,887 other
Charles Franklin
HEAD of School (From 7/1/2023)
$313,189
$280,175 from orgNo related comp$33,014 other
John P Gannon
Advancement Director
$271,988
$225,403 from orgNo related comp$46,585 other
Andrew M King
Upper School Director
$250,718
$193,878 from orgNo related comp$56,840 other
Lisa Obersterin
Lower School Director
$220,899
$179,241 from orgNo related comp$41,658 other
Teresa Weber
Director of Advancement (Thru 06/30/23)
$213,037
$199,218 from orgNo related comp$13,819 other
Basil Kolani
Director of Academic Affairs
$188,611
$175,811 from orgNo related comp$12,800 other
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Revisions to this profile

January 25, 2026:
2024 Hackley School 990 published
January 25, 2026:
2023 Hackley School 990 published
January 25, 2026:
2022 Hackley School 990 published

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$516,432
+16.4%
Head of School
2022
$418k org
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$443,742
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Head of School
2021
$394k org
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$50k other
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$414,150
+4.6%
Head of School
2020
$369k org
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$46k other
--
$395,839
+4.7%
Head of School
2019
$352k org
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$45k other
--
$377,891
+101.4%
Head of School
2018
$338k org
50 hrs/wk
$41k other
--
$187,591
Headmaster (AS of 7/16)
2017
$166k org
40 hrs/wk
$23k other
--

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