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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 The Morton Arboretum Jill Koski

Jill Koski

Officer

Vice President, Development at The Morton Arboretum

Fiscal year ended December 31, 2017. Published on January 24, 2026.

$248,089
2017

Total compensation

Jill Koski has been listed as an employee of The Morton Arboretum in Form 990 filings since at least fiscal year 2016. Total compensation for Jill Koski has decreased by 2.9% from 2016 to 2017.

Annual compensation details

$248,089
-2.9%
Vice President, Development
2017
$209k org
40 hrs/wk
$40k other
--
$255,576
Vice President, Development
2016
$209k org
40 hrs/wk
$47k other
--

Total compensation by year

Compare the compensation of Jill Koski to:

2017

Other employees at The Morton Arboretum

Gerard T Donnelly, Ph.D.
President and Chief Executive Officer
$489,768
$433,528 from orgNo related comp$56,240 other
James S Fawley
Vice President and Chief Financial Officer
$240,635
$196,661 from orgNo related comp$43,974 other
Jennifer Goodsmith
Vp-Marketing and Communication
$209,103
$184,760 from orgNo related comp$24,343 other
Nicole Cavender
Vp-Science and Conservation
$199,648
$162,238 from orgNo related comp$37,410 other
Kris Bachtell
Vp-Collections and Facilities
$195,532
$160,026 from orgNo related comp$35,506 other
Susan Wagner
Vp-Education and Information
$186,449
$175,234 from orgNo related comp$11,215 other
Kathleen Spiess
Vice President, Development
$170,898
$160,097 from orgNo related comp$10,801 other
Kelly Nolan
SR Major Gifts Officer
$155,367
$115,394 from orgNo related comp$39,973 other
Charles Cannon
Dir.-Center for TREE Science
$152,718
$118,123 from orgNo related comp$34,595 other
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Revisions to this profile

January 24, 2026:
2017 The Morton Arboretum 990 published
January 24, 2026:
2016 The Morton Arboretum 990 published

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