Compensation 990

Wegner Arboretum Society

Fiscal year ending 2024. Filed on November 17, 2025.

1900 S Perry Place
Sioux Falls, South Dakota 57110

Wegner Arboretum Society (EIN: 20-8784637) has filed an IRS Form 990 between fiscal years 2016 and 2024. In its fiscal year 2024 IRS Form 990 filing, Wegner Arboretum Society, a 501(c)(3) charitable organization, reported compensation for 1 out of 5 total employees. Among the employees shown here, the average compensation is $60,005. The highest compensated employee at Wegner Arboretum Society is Mike Cooper with fiscal year 2024 compensation of $60,005.

Revenue, expenses, and employee compensation

Revenue

$309,451

Expenses

$480,358

Employee compensation

$124,007
Revenue, expenses, and employee compensation over time

Reported Compensated Employees

Non-Employee Board Members

Ann Wilson
Director
Anthony Pizer
Director
Ben Arndt
Treasurer
David Rezac
Director
Dick Brown
Director
Dominic Walkes
Vice President
Don Kearney
Government Apt.
Heather Kittleson
Director
Michelle Erpenbach
Secretary
Mike Crane
President
Paul Dejong
Director
Robin Arden
Director

Mission Statement

To nurture connections between plants and people, past and present, in an inspiring natural setting that invites discovery.

Revisions to this organization profile

November 17, 2025:
2024 Wegner Arboretum Society 990 filed
October 16, 2024:
2023 Wegner Arboretum Society 990 filed
October 26, 2023:
2022 Wegner Arboretum Society 990 filed

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