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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 Chordoma Foundation Tammy Silverthorne

Tammy Silverthorne

Highest compensated employee

Director at Chordoma Foundation

Fiscal year ended December 31, 2023. Published on January 25, 2026.

$122,053
2023

Total compensation

Tammy Silverthorne has been listed as an employee of Chordoma Foundation in Form 990 filings since fiscal year 2022. Total compensation for Tammy Silverthorne has increased by 5.8% from 2022 to 2023.

Annual compensation details

$122,053
+5.8%
Director
2023
$107k
40 hrs/wk
$16k
--
$115,356
Director
2022
$101k
40 hrs/wk
$16k
--

Total compensation by year

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Revisions to this profile

January 25, 2026:
2023 Chordoma Foundation 990 published
January 25, 2026:
2022 Chordoma Foundation 990 published

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2023

Other employees at Chordoma Foundation

Daniel Freed
HEAD of TARG
$197,995
$183,188 No related comp$14,807
Kenny Brighton
HEAD of PHIL
$171,305
$164,800 No related comp$6,505
Josh Sommer
EXEC Director and
$162,008
$148,892 No related comp$13,116
Sara Nick
HEAD of ENGA
$128,163
$123,299 No related comp$4,864
Shannon Lozinsky
Director
$115,508
$102,804 No related comp$12,704

Other people named Tammy Silverthorne

2023
Employee
Tammy Silverthorne
The Ehe Foundation
$13,288