Our Team

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General Management
Stephanie Cuskley is the Chief Executive Officer of the Helmsley Charitable Trust which aspires to improve lives by supporting exceptional efforts in the U.S. and around the world in ...
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Stephanie Cuskley

Chief Executive Officer

Ellen Witzkin is the Executive Assistant to the CEO, Stephanie Cuskley. Ellen has an extensive background working in philanthropy and nonprofit organizations.  Prior to joining Helmsley, Ellen was the executive ...
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Ellen Witzkin

Executive Assistant to the CEO

Crohn's Disease
Paul Scholl
Dr. Paul Scholl is the Program Director of the Helmsley Charitable Trust’s Crohn’s Disease Program. Prior to joining Helmsley, he was associate medical head for the immunology therapeutics ...
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Paul Scholl

Program Director

Dr. Laurie Churchill is a Program Officer for the Helmsley Charitable Trust’s Crohn’s Disease Program. Laurie oversees the diagnostics portfolio of grants, identifying and evaluating new opportunities to ...
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Laurie Churchill

Program Officer

Dr. Jessica Langer is a Program Officer for the Helmsley Charitable Trust’s Crohn’s Disease Program. Jessica helps to manage the program’s research grants portfolio and to identify ...
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Jessica Langer

Program Officer

Pretima Persad is a Program Officer for the Helmsley Charitable Trust's Crohn's Disease Program. In this role, Pretima oversees the disease management portfolio of grants and works to identify and ...
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Pretima Persad

Program Officer

Dr. Shefali Soni is a Program Officer for the Crohn’s Disease Program. In this role, Shefali oversees and manages the prevention grants portfolio and helps identify and evaluate new ...
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Shefali Soni

Program Officer

Terry Felton
Dr. Terry Felton is an Associate Program Officer for the Helmsley Charitable Trust’s Crohn’s Disease Program. In this role, Terry supports the diagnostics portfolio of grants that aim ...
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Terry Felton

Associate Program Officer

Kerry Hernandez
Dr. Kerry Hernandez is an Associate Program Officer for the Helmsley Charitable Trust’s Crohn’s Disease Program. Kerry contributes to managing the Program’s portfolio of prevention grants, which ...
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Kerry Hernandez

Associate Program Officer

Laura Hobstetter
Laura Hobstetter is an Associate Program Officer for the Helmsley Charitable Trust’s Crohn’s Disease Program. In this role, Laura helps to oversee the disease management portfolio of grants ...
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Laura Hobstetter

Associate Program Officer

Stephanie LeValley
Dr. Stephanie LeValley is an Associate Program Officer for Helmsley’s Crohn’s Disease Program. In this role, Stephanie supports the therapeutics portfolio of grants to promote novel therapeutics and ...
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Stephanie LeValley

Associate Program Officer

Kate Garcia is an Administrative Assistant for Helmsley’s Crohn’s Disease Program. As Administrative Assistant, she supports the team with expense reporting, travel, and calendar management. Prior to joining ...
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Kate Garcia

Administrative Assistant

Kortney Hensley is an Administrative Assistant for Helmsley’s Crohn’s Disease Program. As Administrative Assistant, she provides scheduling, travel, and expense reporting support for the program. Prior to joining ...
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Kortney Hensley

Administrative Assistant

Israel
Breeze McMennamin is the Program Director of the Helmsley Charitable Trust’s Israel Program.  She joined Helmsley after practicing law as a commercial litigator for many years with Helmsley trustee ...
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Breeze McMennamin

Program Director

Matt Marlott is a Program Officer with the Helmsley Charitable Trust’s Israel Program. Matt is a member of a small team, in which he facilitates grants aimed at strengthening ...
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Matt Marlott

Program Officer

Louisa is an Associate Program Officer for the Helmsley Charitable Trust’s Israel Program. Prior to joining Helmsley, Louisa worked with the Jewish Agency for Israel, as its central emissary ...
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Louisa Valitsky

Associate Program Officer

Auria Rivera
Auria is the Executive Assistant for the Helmsley Charitable Trust’s Israel Program. Prior to joining Helmsley, Auria worked for several Helmsley properties, serving in various capacities as a sales ...
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Auria Rivera

Executive Assistant

New York City
Tracy Perrizo is the Program Officer for Helmsley’s New York City Program. In this role, she helps to identify and design program grantmaking initiatives, as well as manage existing ...
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Tracy Perrizo

Program Officer

Marci Gelb
Marci Gelb is the Administrative Assistant for the Helmsley Charitable Trust’s New York City Program and Information Technology department. Marci has an extensive background as an executive assistant and ...
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Marci Gelb

Administrative Assistant (also Information Technology)

Rural Healthcare
Mitch Krebs is the Program Director of Helmsley’s Rural Healthcare Program which seeks to improve access to and quality of care in the upper Midwest. Prior to joining Helmsley, ...
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Mitchell Krebs

Program Director

Wayne Booze is a Program Officer for the Helmsley Charitable Trust's Rural Healthcare Program. Currently, he is focusing on the expansion of access to the best standard of diagnostic care ...
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Wayne Booze

Program Officer

Scott Johnson
Scott Johnson is a Program Officer for the Helmsley Charitable Trust’s Rural Healthcare Program. In this role, Scott assists with Helmsley’s efforts in rural behavioral healthcare. Scott has 35 ...
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Scott Johnson

Program Officer

Elizabeth Ruen is a Program Officer for the Helmsley Charitable Trust’s Rural Healthcare Program. In this role, she oversees a growing portfolio of healthcare delivery, cancer care, and conservation ...
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Elizabeth Ruen

Program Officer

Alicia Cotton is the Administrative Assistant for the Rural Healthcare Program in Helmsley’s Sioux Falls office. Born and raised in South Dakota, Alicia has been dedicated to many local ...
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Alicia Cotton

Administrative Assistant

Type 1 Diabetes
Dr. Gina Agiostratidou is the Program Director for the Helmsley Charitable Trust’s Type 1 Diabetes (T1D) Program, which aims to advance research, treatments, technologies, and services that improve the ...
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Gina Agiostratidou

Program Director

Deniz Dalton is a Program Officer for the Helmsley Charitable Trust's Type 1 Diabetes (T1D) Program. In this role, Deniz works predominantly in identifying new T1D technology and device ...
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Deniz Dalton

Program Officer

Laurel Koester is a Program Officer for the Helmsley Charitable Trust's Type 1 Diabetes (T1D) Program. She helps to oversee a healthcare models portfolio in which she manages existing grants ...
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Laurel Koester

Program Officer

Dr. Anne Koralova is a Program Officer for the Helmsley Charitable Trust’s Type 1 Diabetes (T1D) Program. She helps to oversee the current research grants portfolio and identify and ...
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Anne Koralova

Program Officer

Estefania Palomino is a Program Officer for the Helmsley Charitable Trust's Type 1 Diabetes (T1D) Program. In this role, she manages the design and implementation of the global strategy to ...
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Estefania Palomino

Program Officer

Dr. Sean Sullivan is a Program Officer for the Helmsley Charitable Trust’s Type 1 Diabetes (T1D) Program. In this role, he oversees the glucose control grants portfolio, identifying and ...
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Sean Sullivan

Program Officer

Dr. Ben Williams is a Program Officer for the Helmsley Charitable Trust’s Type 1 Diabetes Program (T1D). He helps to oversee a biomedical research grant portfolio that identifies and ...
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Ben Williams

Program Officer

Maryaline Coffre is an Associate Program Officer for the Helmsley Charitable Trust’s Type 1 Diabetes (T1D) Program. She helps to oversee a biomedical research grant portfolio that identifies and ...
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Maryaline Coffre

Associate Program Officer

Alex Pasek is an Associate Program Officer for the Helmsley Charitable Trust’s Type 1 Diabetes (T1D) Program. He helps to oversee the glucose control grants portfolio which identifies and ...
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Alex Pasek

Associate Program Officer

James Reid
James Reid is an Associate Program Officer for the Helmsley Charitable Trust's Type 1 Diabetes (T1D) Program. In this role, he supports the design and implementation of the global strategy ...
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James Reid

Associate Program Officer

Jeff Spencer
Jeff Spencer is an Associate Program Officer for the Helmsley Charitable Trust’s Type 1 Diabetes (T1D) Program. He helps to oversee the grant portfolio that focuses on supporting preventative ...
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Jeff Spencer

Associate Program Officer

Ben Stang is an Associate Program Officer for the Helmsley Charitable Trust’s Type 1 Diabetes (T1D) Program. In this role, he focuses on the healthcare models portfolio of grants, ...
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Ben Stang

Associate Program Officer

Victoria Tralongo joined the Helmsley Charitable Trust in April 2014 and is the Executive Assistant for the Helmsley Charitable Trust's Type 1 Diabetes (T1D) Program. In this role, Victoria works closely ...
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Victoria Tralongo

Executive Assistant

Bezaida De La Cruz
Bezaida De La Cruz is the Administrative Assistant for the Type 1 Diabetes (T1D) Program. Bezaida supports the T1D Program's efforts to improve lives for people with T1D ...
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Bezaida De La Cruz

Administrative Assistant

Ashley Eliza is the Administrative Assistant for the Type 1 Diabetes (T1D) Program. As Administrative Assistant, she supports the T1D Program's efforts to improve lives for people with T1...
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Ashley Eliza

Administrative Assistant

Vulnerable Children in Sub-Saharan Africa
Trista Kontz-Bartels is the Program Director of Helmsley’s Vulnerable Children in Sub-Saharan Africa Program, which seeks to provide at-risk children with greater access to education, improved food and nutrition, ...
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Trista Kontz-Bartels

Program Director

Sherilyn (Sheri) Goldammer is a Program Officer for the Vulnerable Children in Sub-Saharan Program at the Helmsley Charitable Trust. In her role, she works closely with the Program Director to ...
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Sherilyn Goldammer

Program Officer

Job Change (Chan-gay) is an Associate Program Officer with the Helmsley Charitable Trust’s Vulnerable Children in Sub-Saharan Africa Program. Job was born and raised in Kenya before immigrating to ...
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Job Change

Associate Program Officer

Communications
Carey Meyers is the Director of Communications at the Helmsley Charitable Trust, leading communications and strategic efforts to further drive the impact of Helmsley’s grantmaking. Carey has more than 20 ...
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Carey Meyers

Director of Communications

Laura Fahey works across program areas and with senior leadership at the Helmsley Charitable Trust to lead the implementation of a public affairs strategy for the organization. Laura brings strategic ...
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Laura Fahey

Communications Officer

Regina Palatini is a Communications Associate at the Helmsley Charitable Trust. She contributes to Helmsley’s internal and external communications efforts, and helps to address the communications needs of specific ...
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Regina Palatini

Communications Associate

Finance
Nicholas Schiavo is the Chief Financial Officer at the Helmsley Charitable Trust, where he oversees finance, tax, and office operations. He began his Helmsley career in 2015, when he served as ...
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Nicholas Schiavo

Chief Financial Officer

Kevin McCullough
Kevin McCullough is the Manager of Financial Planning and Analysis at the Helmsley Charitable Trust. He is responsible for all reporting and analytics for grantmaking and operational expenditures. Kevin joined ...
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Kevin McCullough

Manager of Financial Planning and Analysis

Kenneth Sussman is the Tax and Investment Accounting Manager at the Helmsley Charitable Trust. In this role, Kenneth focuses his efforts on accounting and tax compliance activities surrounding Helmsley’s ...
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Kenneth Sussman

Tax and Investment Accounting Manager

Robert Williams is the Controller at the Helmsley Charitable Trust. As Controller, Robert is responsible for developing, implementing, and ensuring compliance with sound and prudent financial policies and practices consistent ...
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Robert Williams

Controller

Rosario Macalinao joined the Helmsley Charitable Trust in June 2016 as a Senior Accountant. She reports to the Controller and her responsibilities mainly include the management of the grants payable process, ...
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Rosario Macalinao

Senior Accountant

Devin Adelhardt
Devin F. Adelhardt is an Investment Accountant at the Helmsley Charitable Trust. Prior to joining Helmsley, Devin worked at Pentegra Retirement Services for seven years in various roles in the ...
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Devin Adelhardt

Investment Accountant

Dahiana Caro is an Accountant at the Helmsley Charitable Trust. As an Accountant, Dahiana works closely with the Controller and Director of Investment Accounting, assisting with the preparation of financial ...
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Dahiana B. Caro

Accountant

Ray joined the Helmsley Charitable Trust in April 2012 as the Office Operations Assistant. In November, he began working in the Finance department as a Finance Assistant. His principal roles and ...
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Ray Rodriguez

Finance Assistant

Grants Management
Christopher Percopo serves as the Director of Grants Information and Management at the Helmsley Charitable Trust. As one of Helmsley’s first staff members, he has served in a variety ...
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Christopher Percopo

Director of Grants Information and Management

Jennifer Dickinson is a Grants Manager at the Helmsley Charitable Trust. Jenn manages all aspects of grantmaking operations and compliance across Helmsley’s programs, including staff training, internal and external ...
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Jennifer Dickinson

Grants Manager

Antoinette Harris
Antoinette Harris is a Grants Manager at the Helmsley Charitable Trust. She manages grantmaking operations and compliance and works in tandem with the program teams to optimize the grantmaking process.
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Antoinette Harris

Grants Manager

Rokeya Rahman is a Grants Manager at the Helmsley Charitable Trust. In this role, Rokeya works closely with the Grants Management team, providing critical support to programs and other functions ...
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Rokeya Rahman

Grants Manager

Nicholas Wenham
Nicholas Wenham is a Grants Manager at the Helmsley Charitable Trust. In this role, Nicholas works closely with the Grants Management team, providing critical support to programs and other functions ...
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Nicholas Wenham

Grants Manager

Irene Williams
Irene Williams is a Grants Manager at the Helmsley Charitable Trust. In this role, Irene works with the Grants Management team to support programs across the full cycle of grantmaking ...
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Irene Williams

Grants Manager

Sokona Diallo is a Grants Associate at the Helmsley Charitable Trust. In this role, she utilizes her background and expertise in grants management to support Helmsley’s grantmaking strategy. Deeply ...
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Sokona Diallo

Grants Associate

Valeriya Lukonen
Valeriya Lukonen is a Grants Associate at the Helmsley Charitable Trust. In this role, Val provides critical support to programs, works with the Grants Management team, and assists with other ...
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Valeriya Lukonen

Grants Associate

Lindsey Menichella
Lindsey Menichella is a Grants Associate at the Helmsley Charitable Trust. In this role, Lindsey collaborates with programs and the Grants Management team to ensure effective and efficient grantmaking.
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Lindsey Menichella

Grants Associate

Darius Soler is a Grants Associate at the Helmsley Charitable Trust. In this role, Darius provides critical support to programs and serves as a training lead to staff to ensure ...
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Darius Soler

Grants Associate

Felicia Cruz has been with the Helmsley Charitable Trust since April of 2013. In her present role as Administrative Assistant for the Grants Management department, she works to support the Director ...
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Felicia Cruz

Administrative Assistant

Human Resources
Maureen Rayhill is the Director of Human Resources at the Helmsley Charitable Trust.   Maureen’s prior experience includes management consulting where a significant portion of her work involved helping non-profit ...
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Maureen Rayhill

Director of Human Resources

Connie (CJ) Cacace is a Manager on Helmsley’s Human Resources team. In this role, she leads recruitment for Helmsley and works with her team to meet staff and organizational ...
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Connie Cacace

Human Resources Manager

Veronica Tuitt-Abraham is the Benefits Manager at the Helmsley Charitable Trust. Veronica is responsible for the management and administration of all health and welfare and retirement plans at Helmsley.  Veronica ...
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Veronica Tuitt-Abraham

Benefits Manager

Rachel Mancini
Rachel Mancini is the Human Resources Associate at the Helmsley Charitable Trust. In this role, Rachel collaborates closely with the HR team. Her responsibilities include supporting recruiting efforts, managing onboarding, ...
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Rachel Mancini

Associate

Information Technology
John Hagel
John Hagel joined the Helmsley Charitable Trust in 2019 as the Director of Information Technology. In this role, he leads the IT department in strategy and management. Prior to joining Helmsley, ...
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John Hagel

Director of Information Technology

Sergey Sinyuts is the IT Manager at the Helmsley Charitable Trust, where he works closely with the Director of Information Technology to administer and provide end-user support for Helmsley’s ...
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Sergey Sinyuts

Information Technology Manager

Umma Saima
Umma Saima is the IT Associate for the Helmlsey Charitable Trust. She supports the IT Director and IT Manager in the Integration and deployment of new software with current systems. ...
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Umma Saima

Information Technology Associate

Johnny Tepoz
Johnny Tepoz is the IT Technician for the Helmsley Charitable Trust. He supports the IT Director and IT Manager in developing and curating training for end-users at Helmsley.
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Johnny Tepoz

Information Technology Technician

Investments
Roz Hewsenian serves as the Helmsley Charitable Trust’s Chief Investment Officer. In this position, she is responsible for the strategic direction of the Trust’s investment program and its ...
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Rosalind M. Hewsenian

Chief Investment Officer

Joshua Fenton is Director of Investments at the Helmsley Charitable Trust. He is part of the development and implementation of the overall investment strategy for Helmsley and is principally responsible ...
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Joshua Fenton

Director of Investments

Al Y. Kim is Director of Investments at the Helmsley Charitable Trust. In this role, he is responsible for helping lead the development and implementation of the overall investment strategy ...
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Al Y. Kim

Director of Investments

Meena Lakshman serves as the Director of the Investments team at the Helmsley Charitable Trust. In this role, she is involved in overall asset allocation, portfolio strategy, and manager research. ...
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Meena Lakshman

Director of Investments

Christopher Rapcewicz is Director of Risk and Operations at the Helmsley Charitable Trust. He is part of the development and implementation of the overall investment strategy and is principally responsible ...
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Christopher Rapcewicz

Director of Risk and Operations

Brian Chun is an Investment Officer at the Helmsley Charitable Trust. He is responsible for the sourcing, due diligence, and evaluation of private equity, venture capital, and hedge fund investments.  ...
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Brian Chun

Investment Officer

Christopher Shieh is an Investment Officer at the Helmsley Charitable Trust. He joined Helmsley in 2013 and is responsible for idea generation, investment manager due diligence, and portfolio management. Prior to ...
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Christopher Shieh

Investment Officer

Claudia Cole
Claudia Cole is an Investment Associate at Helmsley Charitable Trust. She is responsible for the sourcing, due diligence, and evaluation of private equity, venture capital, long-only, natural resources, and hedge ...
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Claudia Cole

Investment Associate

Alessandra Felloni
Alessandra Felloni is an Investment Associate at the Helmsley Charitable Trust. She joined Helmsley in November 2020 and is responsible for managing the monitoring and forecasting of the private capital program, ...
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Alessandra Felloni

Investment Associate

Sandra Moccia is the Manager of Investment Operations at Helmsley where she coordinates and reports on the processes of the investment program. She oversees the workflow between Investment staff, money ...
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Sandra Moccia

Manager, Investment Operations

Amy Pitts joined the Helmsley Charitable Trust in March 2014 and is Executive Assistant to the Chief Investment Officer and the Investments Department. Prior to joining Helmsley, Amy worked at Halyard ...
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Amy Pitts

Executive Assistant

Investment Committee
Helmsley's Investment Committee provides oversight of the Investment program, ensuring compliance and providing independent counsel to the Investment Team on their strategy.
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Investment Committee

Legal
Sarah E. Paul is the General Counsel of the Helmsley Charitable Trust. She joined Helmsley from Skadden, Arps, Slate, Meagher & Flom, where she had been Of Counsel and Deputy Head ...
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Sarah E. Paul

General Counsel

Krista Adler is Associate General Counsel of the Helmsley Charitable Trust.  Krista is responsible for providing legal representation to Helmsley on a wide range of matters, including compliance with the ...
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Krista Adler

Associate General Counsel

Paige Amundson is Associate General Counsel of the Helmsley Charitable Trust. Paige is responsible for providing legal representation to Helmsley on a wide range of matters, including intellectual property matters. ...
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Paige Amundson

Associate General Counsel

Christina provides support to the Helmsley Charitable Trust’s office of the General Counsel, which oversees all legal work for Helmsley. She plays a key role in drafting contracts, ensuring ...
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Christina Eadie

Executive Assistant

Office Operations
Emilian Toba is the Manager of Payroll and Office Operations at the Helmsley Charitable Trust. In this role, he focuses on the day-to-day activities surrounding Helmsley’s employee compensation function, ...
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Emilian Toba

Manager of Payroll and Office Operations

Silvia Guerrido is the Office Manager at the Helmsley Charitable Trust. In this role, she is responsible for office supply procurement as well as maintenance, operations, and repairs of all ...
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Silvia Guerrido

Office Manager

Jimmy Lim has been associated with Helmsley Enterprises, Inc. since August 2011. He joined the Helmsley Charitable Trust in January 2016 as a Facilities Assistant to support the staff's daily needs.  Previously, ...
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Jimmy Lim

Facilities Assistant

Michael joined the Helmsley Charitable Trust in January 2014 as the Facilities Assistant. He works with the Office Operations team to support the staff’s daily needs.  Before joining Helmsley, Michael ...
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Michael Duong Mai

Facilities Assistant

Isaac Suggitt
Isaac is the Administrative Assistant in Helmsley’s Office Operations department. In this role, he assists with office supply procurement and coverage of other operations duties across the organization.   Isaac ...
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Isaac Suggitt

Administrative Assistant