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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 Society of Toxicology Tonia Masson

Tonia Masson

Officer

Executive Director at Society of Toxicology

Fiscal year ended June 30, 2023. Published on January 25, 2026.

$160,467
2023

Total compensation

Tonia Masson has been listed as an employee of Society of Toxicology in Form 990 filings since fiscal year 2018. Total compensation for Tonia Masson has increased by 12.8% from 2018 to 2023.

Annual compensation details

$160,467
+7.5%
Executive Director
2023
$161k
--
$149,333
+2.7%
Executive Director
2022
$150k
--
$145,426
-1.9%
Executive Director
2021
$146k
--
$148,289
+3.3%
Executive Director
2020
$149k
--
$143,619
+1%
Executive Director
2019
$144k
--
$142,266
Executive Director
2018
$143k
--

Total compensation by year

Compare the compensation of Tonia Masson to:

Revisions to this profile

January 25, 2026:
2023 Society of Toxicology 990 published
January 25, 2026:
2022 Society of Toxicology 990 published
January 25, 2026:
2021 Society of Toxicology 990 published

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2023

Other employees at Society of Toxicology

Martha Malone
Deputy Executive Director
$114,092
$0 $114,092 No other comp
Betty Eidemiller
Education Director
$112,189
$0 $112,189 No other comp
Veronica Fisher
Accountant
$108,833
$0 $108,833 No other comp