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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 The William & Flora Hewlett Foundation Mariano-Florentino Cullar

Mariano-Florentino Cullar

Director at The William & Flora Hewlett Foundation

Fiscal year ended December 31, 2021. Published on January 25, 2026.

$0
2021

Total compensation

Mariano-Florentino Cullar has been listed as an employee of The William & Flora Hewlett Foundation in Form 990 filings since at least fiscal year 2016.

Annual compensation details

$0
Director
2021
$0
Director
2020
$0
Director
2019
$0
Director
2018
$0
Director
2017
$0
Director
2016

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Revisions to this profile

January 25, 2026:
2021 The William & Flora Hewlett Foundation 990 published
January 24, 2026:
2020 The William & Flora Hewlett Foundation 990 published
January 24, 2026:
2019 The William & Flora Hewlett Foundation 990 published

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2021

Other employees at The William & Flora Hewlett Foundation

Ana Marshall
Vice President and Chief Investment Officer
$5,242,870
$5,146,361 —$96,509
Larry Kramer
President
$1,023,665
$927,156 —$96,509
Elizabeth Peters
GEN Counsel and CORP Secretary
$589,634
$493,125 —$96,509
Suresh Bhat
Chief Financial Officer and Treasurer
$470,744
$388,333 —$82,411
Fay Twersky
Vice President
$200,224
$184,575 —$15,649
Eric Gimon
Director
$0
Flora Hewlett Birdzell
Director
$0
Alecia Decoudreaux
Director
$0
Sarah Singh
Director
$0

Other people named Mariano-Florentino Cullar

2021
Employee
Mariano-Florentino Cullar
Carnegie Endowment for International Peace
$746,449
Board Member
Mariano-Florentino Cullar
American Law Institute
$0