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HomeAll NewsMost read newsBusiness Leaders Biography
Summary 
Presently, William J. Rieflin holds the position of Executive Chairman at NGM Biopharmaceuticals, Inc. and Chairman for Rapt Therapeutics, Inc.

He is also on the board of Cumbre Pharmaceuticals, Inc., Kallyope, Inc., Lyell Immunopharma, Inc. and Lycia Therapeutics, Inc.

He previously held the position of President for XenoPort, Inc., CFO, Secretary & Executive VP-Administration at Tularik, Inc., Associate of Sidley & Austin, Head-Sales at American Hospital Supply Corp. and Secretary & Vice President-Human Resources at AMSCO International, Inc.

Mr. Rieflin received an undergraduate degree from Cornell University, an MBA from The University of Chicago Booth School of Business and a graduate degree from Stanford Law School.


Current positions of William J. Rieflin 
NameTitle Since
Lyell Immunopharma, Inc.
(Biotechnology & Medical Research)
Independent Director 2020
NGM Biopharmaceuticals, Inc.
(Biotechnology & Medical Research)
Executive Chairman 2018
RAPT Therapeutics, Inc.
(Biotechnology & Medical Research)
Chairman 2019
Cumbre Pharmaceuticals, Inc. Director -
Kallyope, Inc. Independent Non-Executive Director 2016
Lycia Therapeutics, Inc. Director -


Holdings of William J. Rieflin 
NameEquities%Valuation
NGM Biopharmaceuticals, Inc. (NGM)
(Biotechnology & Medical Research)
2,772,5353.58%60,524,439 USD
RAPT Therapeutics, Inc. (RAPT)
(Biotechnology & Medical Research)
94,7220.32%3,097,409 USD
Lyell Immunopharma, Inc. (LYEL)
(Biotechnology & Medical Research)
00.0000%0 USD


William J. Rieflin: Personal Network 
Most Read News 
09/04BERNARD ARNAULT : There is no conflict with Arnault
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09/07GEORGE SOROS : Soros says BlackRock's China investments likely to lose money - WSJ
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09/14BRAD SMITH : Microsoft to buy back up to $60 billion in shares; names Brad Smith vice chair
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09/09FRANCESCO GAETANO CALTAGIRONE : Italy's Caltagirone ups Generali stake to just over 6%
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09/14CATHIE WOOD : ARK Invest's Wood expects market rotation back to growth stocks
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09/09ELON MUSK : Tesla's Musk asks staff to 'go super hardcore' to ensure decent Q3 delivery number
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09/13MARTIN SORRELL : Sorrell's S4 Capital raises annual profit outlook for a third time
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09/08ELON MUSK : Amazon.com goes for jugular in FCC spat with SpaceX's Musk
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09/08BILL GATES : Bill Gates' investment firm to take control of Four Seasons in $2.21 billion deal
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09/17STELIOS HAJI-IOANNOU : EasyJet shareholder Stelios Haji-Ioannou shuns rights issue -source
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William J. Rieflin : Connections