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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 Wikimedia Foundation Inc. Katherine Maher

Katherine Maher

Former

Executive Director (Thru 4/21) at Wikimedia Foundation Inc.

Fiscal year ended June 30, 2022. Published on January 25, 2026.

$798,632
2022

Total compensation

Katherine Maher has been listed as an employee of Wikimedia Foundation Inc. in Form 990 filings since at least fiscal year 2016. Total compensation for Katherine Maher has increased by 344.1% from 2016 to 2022.

Annual compensation details

$798,632
+88.7%
Executive Director (Thru 4/21)
2022
$790k org
40 hrs/wk
$10k other
--
$423,318
+3.5%
Executive Director (Thru 4/30/21)
2021
$407k org
40 hrs/wk
$17k other
--

Total compensation by year

Compare the compensation of Katherine Maher to:

2022

Other employees at Wikimedia Foundation Inc.

Janeen Uzzell
Chief Operating Officer (Thru 6/21)
$515,553
$503,844 from orgNo related comp$11,709 other
Amanda Keton
General Counsel and Secretary
$428,908
$396,514 from orgNo related comp$32,394 other
Jaime Villagomez
Chief Financial Officer and Treasurer
$424,779
$386,433 from orgNo related comp$38,346 other
Anthony Negrin
Chief Product Officer (Thru 11/21)
$422,088
$389,948 from orgNo related comp$32,140 other
Lisa Seitz
Chief Advancement Officer
$410,057
$368,301 from orgNo related comp$41,756 other
Robyn Arville
Chief T&C Officer (Thru 4/22)
$395,935
$368,800 from orgNo related comp$27,135 other
Heather Walls
Chief Creative Officer (Thru 7/21)
$355,414
$343,996 from orgNo related comp$11,418 other
Zdenko Vrandecic
HEAD of Special Projects
$330,740
$299,940 from orgNo related comp$30,800 other
Tajh Taylor
Vice President of DATA Science and Engineering
$285,478
$254,678 from orgNo related comp$30,800 other
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Revisions to this profile

January 25, 2026:
2022 Wikimedia Foundation Inc. 990 published
January 25, 2026:
2021 Wikimedia Foundation Inc. 990 published
January 24, 2026:
2020 Wikimedia Foundation Inc. 990 published

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$167k org
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--

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2022
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