Gary Pfeiffer

Director/Board Member at QUEST DIAGNOSTICS INCORPORATED

Net worth: 6 M $ as of 30/05/2026

76 year

73 connections

Process Industries

Retail Trade

Health Services

Profile

Mr. Gary M.
Pfeiffer is an Independent Director at Quest Diagnostics, Inc. He is on the Board of Directors at Quest Diagnostics, Inc. Mr. Pfeiffer was previously employed as an Independent Director by TerraVia Holdings, Inc., a Non-Executive Chairman by Christiana Care Health System, Inc., a Finance Secretary by State of Delaware, a Lead Independent Director by Internap Corp., a Non-Executive Chairman by The Talbots, Inc., a President by INVISTA BV, and a Chief Financial Officer & Senior Vice President by E.I.
du Pont de Nemours & Co. He received his undergraduate degree from The College of William & Mary and an MBA from The College of William & Mary.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
QUEST DIAGNOSTICS INCORPORATED 0.03%	19/05/2026	31,005 ( 0.03% )	6 M $	30/05/2026

Gary Pfeiffer active positions

Companies	Position	Start
QUEST DIAGNOSTICS INCORPORATED	Director/Board Member	30/11/2004

All active positions of Gary Pfeiffer

Former positions of Gary Pfeiffer

Companies	Position	End
INTERNAP CORPORATION	Chairman	31/12/2019
TERRAVIA HOLDINGS INC	Director/Board Member	31/12/2016
Christiana Care Health System, Inc. Christiana Care Health System, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as a healthcare organization that provides primary, outpatient, home health and urgent care services	Chairman	31/12/2015
THE TALBOTS, INC.	Chairman	30/04/2012
State of Delaware State of Delaware Province/StateGovernment Functions as a regional level government authority	Corporate Officer/Principal	31/05/2009

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Training of Gary Pfeiffer

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

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Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

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Linked companies

Private companies	9
EIDP, Inc. EIDP, Inc. Chemicals: AgriculturalProcess Industries Manufactures and sells seed & crop protection products	Process Industries
The Talbots, Inc. The Talbots, Inc. Apparel/Footwear RetailRetail Trade Retails women's apparel, shoes and accessories through online	Retail Trade
Quest Diagnostics, Inc. Quest Diagnostics, Inc. Services to the Health IndustryHealth Services Provides diagnostic testing and information services	Health Services
Internap Holding LLC Internap Holding LLC Packaged SoftwareTechnology Services Provides IT infrastructure services	Technology Services
TerraVia Holdings, Inc. TerraVia Holdings, Inc. Household/Personal CareConsumer Non-Durables Manufactures and sells food, nutrition and specialty ingredients from algae	Consumer Non-Durables
INVISTA BV INVISTA BV TextilesProcess Industries Manufactures and supplies polymers, fibers and chemical products	Process Industries
The College of William & Mary The College of William & Mary Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Christiana Care Health System, Inc. Christiana Care Health System, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as a healthcare organization that provides primary, outpatient, home health and urgent care services	Commercial Services
State of Delaware State of Delaware Province/StateGovernment Functions as a regional level government authority	Government