Executive Team

The Breakthrough Executive Team has dedicated their careers to the investment, construction and operations of best-in-class life science real estate. 

Dan Belldegrun
Dan Belldegrun
CEO & Co-Founder
Susie Harborth
EVP, Business Operations
Dan D'Orazi
Daniel D’Orazi
EVP, Chief Investment Officer
Lesley Chao
Lesley Chao
SVP, Finance and Chief Compliance Officer
Aaron Kazam
Aaron Kazam
SVP, Acquisitions
Tim Stoll
Tim Stoll
SVP, Development and Project Management
Kinsey Sale
SVP, Asset Management
Christian Heimple
SVP, Design & Construction
Jenni Warne
Jennifer Warne
VP, Legal
Tom Renn
Thomas Renn
VP, Acquisitions and Development, Europe

BOARD OF DIRECTORS

Breakthrough Properties is backed by a joint venture between Tishman Speyer and Bellco Capital.
Rob Speyer
Rob Speyer
Tishman Speyer
President and Chief Executive Officer
Arie Belldegrun
Arie Belldegrun, M.D.
Bellco Capital
Chairman
Jeffrey Mandel
Jeffrey Mandel
Tishman Speyer
Senior Managing Director, Co-Head of US Acquisitions
Rebecka Belldegrun
Rebecka Belldegrun, M.D.
Bellco Capital
Founder and Chief Executive Officer
Joseph Doran
Joseph Doran
Tishman Speyer
Senior Managing Director, Chief Financial Officer
Joshua Kazam
Joshua Kazam
Two River Group
Co-Founder and Partner
Michael Benner
Michael Benner
Tishman Speyer
Senior Managing Director, General Counsel
Josh Bradley
Josh Bradley
Bellco Capital
Chief Investment Officer

Scientific Advisory Board

Our world-renowned Scientific Advisory Board (“SAB”) of leading scientists, entrepreneurs, CEOs and venture capital investors bring their decades of experience to our unique platform for the benefit of our client-tenants.

Arie Belldegrun
Arie Belldegrun, M.D.
Executive Chairman and Co-Founder of Allogene, Chairman of Bellco Capital, Two River Group, UroGen Pharma and Kronos Bio
Franz Humer
Franz Humer, M.D.
Chairman of Humer Foundation, Former Chairman and CEO of Roche Holding
Liz Barrett
Liz Barrett
CEO of UroGen Pharma, Former CEO of Oncology at Novartis
Owen Witte
Owen N. Witte, M.D.
UCLA Professor of Microbiology, Immunology, and Molecular Genetics & President’s Chair of Development Immunology
David Chang
David Chang, M.D., PhD
Co-Founder and CEO of Allogene Therapeutics, Former Chief Medical Officer of Kite Pharma
Helen Kim
Helen Kim
Managing Director at Vida Ventures, Former Partner at Column Group and Executive Vice President of Business Development at Kite Pharma
Arjun Goyal
Arjun Goyal, M.D., MBA
Co-Founder and Managing Director at Vida Ventures, Former Investment Professional at 5AM Ventures
Stefan Vitorovic
Stefan Vitorovic
Co-Founder and Managing Director at Vida Ventures, Former Investment Professional at Third Rock
Ben Belldegrun
Ben Belldegrun
Managing Director and Founder of Pontifax AgTech, Former Portfolio Manager for Brevan Howard Asset Management
Amy Schulman
Amy Schulman
Managing Partner at Polaris Partners, Former general counsel at Pfizer and President, Pfizer Consumer Healthcare
Jakob Loven
Jakob Loven, PhD
Managing Partner at Nextech Invest; co-founder Relay Therapeutics (NASDAQ: RLAY) and Syros Pharmaceuticals (NASDAQ: SYRS)