Compensation 990

The Morton Arboretum

Fiscal year ending 2024. Filed on November 4, 2025.

4100 Illinois Route 53
425 East State Street
Lisle, Illinois 60532

The Morton Arboretum (EIN: 36-1505770) has filed an IRS Form 990 since at least fiscal year 2016. In its fiscal year 2024 IRS Form 990 filing, The Morton Arboretum, a 501(c)(3) charitable organization, reported compensation for 18 out of 561 total employees. Among the employees shown here, the average compensation is $233,347. The highest compensated employee at The Morton Arboretum is Koski Jill with fiscal year 2024 compensation of $631,541.

Revenue, expenses, and employee compensation

Revenue

$57,793,716

Expenses

$58,286,620

Employee compensation

$28,091,465
Revenue, expenses, and employee compensation over time

Reported Compensated Employees

＋12.7%vs 2023
Koski Jill
President and Chief Executive Officer
$631,541
$565,997 from orgNo related comp$65,544 other
－44.2%vs 2023
Donnelly Gerard
Special Advisor
$289,066
$234,998 from orgNo related comp$54,068 other
＋11.7%vs 2023
Lavire Alicia
Vp-Marketing and Guest Experience
$283,016
$242,459 from orgNo related comp$40,557 other
＋3.9%vs 2023
Spiess Kathleen
Vice President, Development
$278,763
$247,048 from orgNo related comp$31,715 other
＋1.0%vs 2023
Bachtell Kris
Vp-Collections and Horticulture
$273,604
$215,561 from orgNo related comp$58,043 other
＋5.9%vs 2023
Bautista Preston Wong
Vp-Learning and Engagement
$254,117
$222,344 from orgNo related comp$31,773 other
New in 2024
Bailey Narissa
Vice President - People and Culture
$237,872
$199,264 from orgNo related comp$38,608 other
－32.5%vs 2023
Fawley James
Vp-Finance and CFO (Thru 4/2024)
$219,855
$209,326 from orgNo related comp$10,529 other
＋5.4%vs 2023
Westwood Meredith
Vp-Science and Conservation
$215,154
$199,010 from orgNo related comp$16,144 other
New in 2024
Reese Michael M
Vice President Finance (Starting 9/2024)
$206,215
$170,423 from orgNo related comp$35,792 other
＋3.9%vs 2023
Nolan Kelly
Dir-Major Gifts
$203,812
$155,222 from orgNo related comp$48,590 other
New in 2024
Midgley Meghan
Dir-Center for TREE Science
$176,659
$146,941 from orgNo related comp$29,718 other

Non-Employee Board Members

Andrew O Johnson
Trustee
Anna Caroline Ball
Vice Chair
Ashesh Goel
Trustee
Barbara J Bradford
Trustee
Charles P McQuaid
Trustee
Christopher B Burke
Trustee
Curtis X Reed
Trustee
E James Dondlinger
Treasurer
Jamal J Scott
Secretary
Kelly Powers Baria
Trustee
Mark C Gossett
Trustee
Mary L Burke
Trustee

Mission Statement

TO COLLECT, STUDY, DISPLAY, AND CONSERVE TREES AND OTHER PLANTS FROM AROUND THE WORLD TO INSPIRE LEARNING, FOSTER ENJOYMENT, BENEFIT COMMUNITIES, ENCOURAGE ACTION, AND ENHANCE THE ENVIRONMENT.

Revisions to this organization profile

November 4, 2025:
2024 The Morton Arboretum 990 filed
November 5, 2024:
2023 The Morton Arboretum 990 filed
November 1, 2023:
2022 The Morton Arboretum 990 filed

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