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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 Public Library of Science Clark E Hartsock III

Clark E Hartsock III

Highest compensated employee

SR Manager IT Services (Thru 12/18) at Public Library of Science

Fiscal year ended December 31, 2018. Published on January 24, 2026.

$210,381
2018

Total compensation

Clark E Hartsock III has been listed as an employee of Public Library of Science in Form 990 filings since fiscal year 2018.

Annual compensation details

$210,381
SR Manager IT Services (Thru 12/18)
2018
$187k
40 hrs/wk
$25k
--

Total compensation by year

Compare the compensation of Clark E Hartsock III to:

Revisions to this profile

January 24, 2026:
2018 Public Library of Science 990 published

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2018

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