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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 California Academy of Sciences William Shepherd III

William Shepherd III

Highest compensated employee

SR Director of Steinhart Aquarium at California Academy of Sciences

Fiscal year ended June 30, 2021. Published on January 24, 2026.

$256,759
2021

Total compensation

William Shepherd III has been listed as an employee of California Academy of Sciences in Form 990 filings since fiscal year 2020. Total compensation for William Shepherd III has decreased by 5% from 2020 to 2021.

Annual compensation details

$256,759
-5%
SR Director of Steinhart Aquarium
2021
$219k org
40 hrs/wk
$39k other
--
$270,266
SR Director of Steinhart Aquarium
2020
$230k org
40 hrs/wk
$41k other
--

Total compensation by year

Compare the compensation of William Shepherd III to:

2021

Other employees at California Academy of Sciences

Scott D Sampson
Executive Director
$768,727
$539,276 from orgNo related comp$229,451 other
Mike McGee
Chief Financial Officer
$441,042
$398,362 from orgNo related comp$42,680 other
Melissa Felder
Chief Revenue and Marketing Officer
$415,815
$375,509 from orgNo related comp$40,306 other
Elizabeth Babcock
Chief Public Engagement Officer
$372,239
$343,356 from orgNo related comp$28,883 other
Shannon Bennett
Chief of Science and Sustain
$321,771
$299,253 from orgNo related comp$22,518 other
Isaac Kwon
COO and and HEAD of Government
$309,768
$282,342 from orgNo related comp$27,426 other
Luiz Rocha
Associate Curator, Icthyol
$273,314
$237,750 from orgNo related comp$35,564 other
Debra Trock
Director of Science Collections
$271,238
$265,057 from orgNo related comp$6,181 other
Michael Costanzo
General Counsel and Director of Security
$263,487
$229,565 from orgNo related comp$33,922 other
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Revisions to this profile

January 24, 2026:
2021 California Academy of Sciences 990 published
January 24, 2026:
2020 California Academy of Sciences 990 published

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