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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 American Philosophical Society Dr Patrick Spero

Dr Patrick Spero

Officer

Chief Executive Officer at American Philosophical Society

Fiscal year ended December 31, 2024. Published on January 25, 2026.

$260,930
2024

Total compensation

Dr Patrick Spero has been listed as an employee of American Philosophical Society in Form 990 filings since at least fiscal year 2016. Total compensation for Dr Patrick Spero has increased by 46.6% from 2016 to 2024.

Annual compensation details

$260,930
+45.3%
Chief Executive Officer
2024
$232k org
40 hrs/wk
$30k other
--
$179,520
-41%
Librarian
2023
$146k org
40 hrs/wk
$34k other
--

Total compensation by year

Compare the compensation of Dr Patrick Spero to:

2024

Other employees at American Philosophical Society

Dr Robert M Hauser
Chief Executive Officer
$376,275
$341,000 from orgNo related comp$35,275 other
Michelle McDonald
Director of Library
$301,818
$257,373 from orgNo related comp$44,445 other
John Wolfe
Financial Officer
$300,742
$251,750 from orgNo related comp$48,992 other
Linda Jacobs
Development Director
$222,211
$192,610 from orgNo related comp$29,601 other
Gary David
Asso Director of Collec
$176,288
$139,050 from orgNo related comp$37,238 other
Mary Grace Wahl
Assoc Director of Colle
$159,993
$113,810 from orgNo related comp$46,183 other
Bayard Miller
Assoc Director of Digit
$147,161
$120,120 from orgNo related comp$27,041 other
Linda Musumeci
Director of Grants and Fe
$133,218
$122,802 from orgNo related comp$10,416 other
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Revisions to this profile

January 25, 2026:
2024 American Philosophical Society 990 published
January 25, 2026:
2023 American Philosophical Society 990 published
January 25, 2026:
2022 American Philosophical Society 990 published

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$53k other
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$186,468
+4.8%
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$149k org
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$38k other
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$177,981
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2016
$145k org
40 hrs/wk
$34k other
--

Other people named Dr Patrick Spero

2024
Employee
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$183,307
Employee
Patrick Spero
The David Library of the American Revolution
$0
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Philadelphia Area Center for History of Science
$0
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Abraham Lincoln Foundation of the Union League of Philadelphia
$0