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Person · officer / director

William Masterson

Vice Pres./Business Agent - Past · International Union of Operating Engineers Local No 399

Vice Pres./Business Agent - Past at International Union of Operating Engineers Local No 399. Listed as an officer, director, or key employee across 5 organizations on the Form 990 record.

This is me
Ambiguous identity This name matches 1 other individual we could not verify as the same person. Each is kept as a separate record below — treat them as distinct people unless an explicit match is confirmed.
Organizations
5
Roles reported
5
Reported compensation
$104K
Others who share this name
1

Who this is

Profile

The filed facts are verified from the IRS filings. The biography is compiled from public web sources and grounded to that filed record.

✓ Verified from filings
●
Reported as Vice Pres./Business Agent - Past of International Union of Operating Engineers Local No 399, based in Chicago, IL.
●
Received $104K in total reported compensation on the most recent Form 990 (Part VII).
●
Also listed as Vice President/Director - Past of International Union of Operating Engineers Local 399 Building Corp, uncompensated.
●
Also listed as Trustee - Past of International Union of Operating Engineers Local 399, uncompensated.
Facts extracted directly from each organization's Form 990, Part VII.
Biography In progress
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Affiliations

Organizations

Linked as the same person by IRS Schedule R, a shared officer mailing address, or shared fellow board members.

International Union of Operating Engineers Local No 399 Vice Pres./Business Agent - Past · $13.2M revenue · Chicago, ILTHE UNION REPRESENTS ITS MEMBERS AND THE SERVICES PROVIDED TO THE MEMBERSHIP INCLUDE ARBITRATION, ORGANIZATION, AND NEGOTIATION AND IMPLEMENTATION OF…pay $174K → $104KFiled FY2023 · Source: Form 990, Part VII
$104Kreported comp
I
International Union of Operating Engineers Local 399 Building Corp Vice President/Director - Past · $1.6M revenue · Chicago, ILTO HOLD AND MANAGE REAL ESTATE.Filed FY2023 · Source: Form 990, Part VII
I
International Union of Operating Engineers Local 399 Building Corp II Vice President/Director-Past · $2.4M revenue · Chicago, ILTO HOLD AND MANAGE REAL ESTATE.Filed FY2023 · Source: Form 990, Part VII
I
International Union of Operating Engineers Local 399 Trustee - Past · $65.7M revenue · Chicago, ILTO PROVIDE HEALTH BENEFITSFiled FY2019 · Source: Form 990, Part VII
I
Intl Un of Operating Engrs Local 399 Health Reimbursement Account Trustee - Past · $4.3M revenue · Chicago, ILRETIREE-ONLY HEALTH REIMBURSEMENT ACCOUNT PLAN TO HELP DEFRAY THE COST OF HEALTHCARE COVERAGE.Filed FY2019 · Source: Form 990, Part VII

Disambiguation

Other people named William Masterson

Different individuals who share this name, separated by IRS Schedule R, mailing address, and shared-board evidence. The 990 carries no person identifier, so some may still be the same person.

W
William Masterson 1 organization · Boston, MATree Eastie INC

Network

Serves alongside

Other officers, directors & key employees at this person's organizations, by latest reported compensation.

P
President/Business Manager · FY2024
$207K
R
Fin. Secretary/Business Ag · FY2024
$197K
V
Rec. Secretary/Business Ag · FY2024
$193K
B
President/Business Manager - Past · FY2020
$193K
L
Vice Pres./Business Agent · FY2024
$189K
V
Business Agent · FY2024
$187K
J
Treasurer/Business Ag · FY2024
$176K
J
Organizer · FY2024
$175K
J
Legislative Director · FY2024
$175K
C
Fund Administrator · FY2024
$173K
P
Staff Attorney · FY2024
$173K
M
Business Agent · FY2023
$168K

Network

Recommendations

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Public data from IRS Form 990 e-file & the Business Master File. Individuals appear here because they were named as an officer, director, or key employee on a nonprofit's Form 990; people are grouped by name plus corroborating evidence (Schedule R, shared address, shared board members). · philanthropy.org