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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 Museum of Science John Slakey

John Slakey

Former

Senior Vice President Fin/Cfo/Treasurer at Museum of Science

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

$206,248
2021

Total compensation

John Slakey has been listed as an employee of Museum of Science in Form 990 filings since at least fiscal year 2016. Total compensation for John Slakey has decreased by 10.3% from 2016 to 2021.

Annual compensation details

$206,248
-19%
Senior Vice President Fin/Cfo/Treasurer
2021
$203k org
40 hrs/wk
$4k other
--
$254,528
+3.7%
Senior Vice President Finance (Left)
2020
$226k org
40 hrs/wk
$30k other
--

Total compensation by year

Compare the compensation of John Slakey to:

2021

Other employees at Museum of Science

Wayne Bouchard
Interim President (Left)
$410,229
$397,268 from orgNo related comp$12,961 other
Tim Ritchie
President
$250,973
$250,973 from orgNo related compNo other comp
Ellen Starr
Senior Vice President, Advancement (Left)
$244,994
$242,040 from orgNo related comp$2,954 other
Jonathan Burke
Coo/Asst. Sec'Y (Left)
$239,829
$212,343 from orgNo related comp$27,486 other
Todd Sperry
Chief Marketing Officer
$236,961
$233,050 from orgNo related comp$3,911 other
Andrew Russell
Senior Vice President, Advancement
$231,709
$206,030 from orgNo related comp$25,679 other
Britton O'Brien
Senior Vice President, Human Resources (Left)
$229,739
$222,155 from orgNo related comp$7,584 other
Annette Sawyer
Senior Vice President, Ed. and Enrichment (Left)
$207,003
$194,664 from orgNo related comp$12,339 other
Heather Gunsallus
Vice President, STEM Education
$205,798
$202,778 from orgNo related comp$3,020 other
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Revisions to this profile

January 25, 2026:
2021 Museum of Science 990 published
January 24, 2026:
2020 Museum of Science 990 published
January 24, 2026:
2019 Museum of Science 990 published

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