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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 Williams Syndrome Association Inc. Mary van Haneghan

Mary van Haneghan

Officer

Executive Director Through Jul'24 at Williams Syndrome Association Inc.

Fiscal year ended December 31, 2024. Published on January 25, 2026.

$124,511
2024

Total compensation

Mary van Haneghan has been listed as an employee of Williams Syndrome Association Inc. in Form 990 filings since fiscal year 2022. Total compensation for Mary van Haneghan has increased by 50.9% from 2022 to 2024.

Annual compensation details

$124,511
-36.5%
Executive Director Through Jul'24
2024
$113k
40 hrs/wk
$12k
--
$195,968
+137.5%
Executive Director
2023
$172k
40 hrs/wk
$25k
--
$82,500
Executive Director AS of Jul'22
2022
$83k
40 hrs/wk

Total compensation by year

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Revisions to this profile

January 25, 2026:
2024 Williams Syndrome Association Inc. 990 published
January 25, 2026:
2023 Williams Syndrome Association Inc. 990 published
January 25, 2026:
2022 Williams Syndrome Association Inc. 990 published

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2024

Other employees at Williams Syndrome Association Inc.

Sarah Schaefer
Executive Director AS of Jul'24
$161,534
$145,000 No related comp$16,534

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