Charles Homcy, M.D.

Partner

Charles Homcy joined Third Rock Ventures in 2010 and focuses on the formation of companies discovering and developing novel therapeutic approaches. He brings significant experience building and leading successful biotech companies and has played an integral role in the launching and building of several portfolio companies:

  • Board member and co-founder of Global Blood Therapeutics
  • Board member of Pliant Therapeutics
  • Former board member of TOPICA Pharmaceuticals
  • Former board member of CytomX
  • Former board member and former interim CEO of MyoKardia

Prior to Third Rock, Charles co-founded Portola Pharmaceuticals and served as president and chief executive officer. Earlier, he served as president of research and development at Millennium, following Millennium's acquisition of COR Therapeutics in 2002. Charles joined COR in 1995 as executive vice president of research and development and served as a director of the company from 1998 to 2002. He has been a clinical professor of medicine at the University of California, San Francisco Medical School and attending physician at the San Francisco VA Hospital since 1997. He was previously president of the medical research division of American Cyanamid-Lederle Laboratories, a division of Wyeth. Charles is a board member of Portola. He received his A.B. and M.D. from Johns Hopkins University where he presently serves on the board of trustees.

Charles and his wife have been avid wild mushroom foragers for nearly 30 years.

Administrative Support

Marcia Hemphill
Office Manager - West Coast and Executive Assistant
Mhemphill@thirdrockventures.com
(415) 766-3638

Associated Portfolio Companies

Partners

Alexis Borisy

Partner

Abbie Celniker, Ph.D.

Partner

Neil Exter

Partner

Kevin Gillis

Partner/Chief Financial Officer

Charles Homcy, M.D.

Partner

Sarah Larson

Partner/Chief Human Resources Officer

Mark Levin

Partner

Craig Muir

Partner/Chief Technology Officer

Cary Pfeffer, M.D.

Partner

Kevin Starr

Partner

Robert Tepper, M.D.

Partner

Venture Partners

Frank T. Gentile, Ph.D.

Venture Partner

Mark A. Goldsmith, M.D., Ph.D.

Venture Partner

Perry Karsen

Venture Partner

Christoph Lengauer, Ph.D.

Venture Partner

Philip Reilly, M.D., J.D.

Venture Partner

Stephen Sherwin, M.D.

Venture Partner

Barbara Weber, M.D.

Venture Partner

Entrepreneurs-In-Residence

Keith Dionne

Entrepreneur-in-Residence

Jeffrey Finer, M.D., Ph.D.

Entrepreneur-in-Residence

Robert Kamen, Ph.D.

Entrepreneur-in-Residence

Glenn Pierce, M.D., Ph.D.

ENTREPRENUER-IN-RESIDENCE

Jeffrey Tong, Ph.D.

Entrepreneur-in-Residence

Laurence Turka, M.D.

Entrepreneur-in-Residence

Domain Experts

Brian Albrecht, Ph.D.

PRINCIPAL

Dina Ciarimboli

General Counsel

Cynthia Clayton

Head of Communications

Tim Funnell, DPhil.

Principal

John Keilty

General Manager, Platform Operations

Recruiting

Andrea DiMella

Recruiting Director

Tracy Nicholson

Recruiting Director

Chris Robinson

Vice President, Recruiting

Associates

Chelsea Place Johnson, Ph.D.

Senior Associate

Vyas Ramanan, Ph.D.

Associate

Administrative

Zoe Angell

Executive Assistant

Megan Graziano

Manager of Operations and Administration

Linda Heath

Executive Assistant

Marcia Hemphill

Office Manager - West Coast and Executive Assistant

Rhea Kappa

Receptionist/Administrative Assistant

Laura Klein

Administrative Assistant

Maribel Laboy

Executive Assistant

Ian Miller

Administrative Assistant

Corey O’Keeffe

Event Planner & Communications

Tracy Williams

Executive Assistant

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