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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 International Union of Operating Engineers Local No 399 Michael Masterson

Michael Masterson

Highest compensated employee

Business Agent at International Union of Operating Engineers Local No 399

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

$214,135
2023

Total compensation

Michael Masterson has been listed as an employee of International Union of Operating Engineers Local No 399 in Form 990 filings since at least fiscal year 2016. Total compensation for Michael Masterson has increased by 21.6% from 2016 to 2023.

Annual compensation details

$214,135
+3.7%
Business Agent
2023
$161k org
40 hrs/wk
$54k other
--
$206,463
-1.1%
Business Agent
2022
$155k org
40 hrs/wk
$53k other
--

Total compensation by year

Compare the compensation of Michael Masterson to:

2023

Other employees at International Union of Operating Engineers Local No 399

Patrick Kelly
President and Business Manager
$247,554
$192,417 from orgNo related comp$55,137 other
Valerie Colvett
Business Agent
$234,769
$179,865 from orgNo related comp$54,904 other
Roger McGinty
FIN Secretary/Business AG
$232,976
$178,576 from orgNo related comp$54,400 other
Vince Winters
REC Secretary/Business AG
$229,524
$175,292 from orgNo related comp$54,232 other
William Masterson
Vice President and Business Agent
$228,949
$174,411 from orgNo related comp$54,538 other
Lloyd Osborne
Executive Board/Business A
$215,149
$161,373 from orgNo related comp$53,776 other
John Hanley
Legislative Director
$214,949
$161,293 from orgNo related comp$53,656 other
John Oconnor
Organizer
$212,807
$159,229 from orgNo related comp$53,578 other
Adelmo Marchiori
Auditor/Business Agent
$207,738
$154,299 from orgNo related comp$53,439 other
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Revisions to this profile

January 25, 2026:
2023 International Union of Operating Engineers Local No 399 990 published
January 25, 2026:
2022 International Union of Operating Engineers Local No 399 990 published
January 25, 2026:
2021 International Union of Operating Engineers Local No 399 990 published

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$208,768
+3.1%
Business Agent
2021
$159k org
40 hrs/wk
$50k other
--
$202,510
+3.8%
Business Agent
2020
$149k org
40 hrs/wk
$54k other
--
$195,078
+2.5%
Business Agent
2019
$146k org
40 hrs/wk
$50k other
--
$190,276
+2.5%
Business Agent
2018
$142k org
40 hrs/wk
$49k other
--
$185,633
+5.4%
Business Agent
2017
$140k org
40 hrs/wk
$47k other
--
$176,135
Business Agent
2016
$137k org
40 hrs/wk
$41k other
--

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