John Preston

John Preston

Director/Board Member at CLEAN HARBORS, INC.

Net worth: 959 645 $ as of 2024-03-30

74 year
Finance
Commercial Services
Health Technology

Profile

John T.
Preston
is the founder of C Change Investments Management LLC, which was founded in 2008.
He held the title of Managing Partner from 2010 to 2011.
Mr. Preston is currently the President & Chief Executive Officer of Atomic Ordered Materials LLC since 1999, Chairman of Vantem Global, Inc. (North Carolina) since 2015, Independent Director of Clean Harbors, Inc. since 1993, Director of ExThera Medical Corp.
since 2019, Director of Akston Biosciences Corp.
since 2023, Director of Eco Material Technologies, Inc. since 2022, Director of Earthshot Labs since 2021, Manager & Real Property at Continuum Energy Technologies LLC, and President of Quantum Energy Technologies Corp.
since 1996.
Mr. Preston's former positions include Chairman of Molten Metal Technology, Inc., Chairman-Emeritus of Massachusetts Technology Collaborative, Independent Director of Clean Harbors, Inc., Director of E-Z-EM, Inc. from 2004 to 2008, Director of Alseres Pharmaceuticals, Inc. from 2004 to 2010, Director of Energy BioSystems Corp., Director-Technology Development at Massachusetts Institute of Technology from 1986 to 1995, Director of National Aeronautics & Space Administration, Director of US Department of Defense (District of Columbia), Director of Agency for Science, Technology & Research, Director of Biomerix Corp., Director of Unity Aluminum, Inc., Director of Mit Technology Licensing Office, Advisor at Hamilton Investment Partners LLC, and Selected Business Advisor at ABV LLC.
Mr. Preston obtained an MBA degree from Northwestern University in 1976 and an undergraduate degree from the University of Wisconsin in 1972.

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
2024-03-24 4,767 ( 0.01% ) 959 645 $ 2024-03-30

John Preston active positions

CompaniesPositionStart
CLEAN HARBORS, INC. Director/Board Member 1992-12-31
Director/Board Member 2020-12-31
Director/Board Member 2021-12-31
Director/Board Member 2023-01-22
Director/Board Member 2019-01-06
Transformative Energy & Materials Capital LLC Corporate Officer/Principal -
Quantum Energy Technologies Corp. President 2010-04-12
Corporate Officer/Principal -
Atomic Ordered Materials LLC Chief Executive Officer 1999-03-31
░░░░░░ ░░░░░░░ ░░░░ ░░░░░░ ░░░░░░░░░ ░░░░░░░░ ░░░░░░░░░░
All active positions of John Preston

Former positions of John Preston

CompaniesPositionEnd
░░░░░░░ ░░░░░░░░░░░░░░░░ ░░░░ ░░░░░░░░░░░░░░ ░░░░░░ ░░░░░░░░░░
░░░ ░░░ ░░░░░░░░░ ░░░░░░░░░░░░░░░░░ ░░░░░░░░░░
░░░░░░░░ ░░░░░░░░░░ ░░░░░░░░ ░░░ ░░░░░░░░░ ░░░░░░░░░░░░░░░░░ ░░░░░░░░░░
░░░░░░░ ░░░░ ░░░░░░░░░░░░░░ ░░░░░░ ░░░░░░░░░░
░░░░░░░░░░░░░ ░░░░░░░░░ ░░ ░░░░░░░░░░ ░░░░░ ░░░░░░░░░░░░ ░░░░░░░ ░░░░░░░░░░
See the detail of John Preston's experience

Training of John Preston

Northwestern University Masters Business Admin
University of Wisconsin Undergraduate Degree

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of John Preston's experience

Connections

99

1st degree connections

27

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Listed companies2
CLEAN HARBORS, INC.

Industrial Services

ALSERES PHARMACEUTICALS, INC.

Health Technology

Private companies22

Health Technology

Industrial Services

Energy BioSystems Corp.

Consumer Services

Finance

National Aeronautics & Space Administration

Government

US Department of Defense (District of Columbia)

Government

Commercial Services

Finance

Atomic Ordered Materials LLC

Commercial Services

Process Industries

Commercial Services

Finance

Quantum Energy Technologies Corp.

Health Services

Transformative Energy & Materials Capital LLC

Finance

Health Technology

Non-Energy Minerals

Commercial Services

Technology Services

Technology Services

Consumer Durables

See company connections
-40% Limited Time Offer: Our subscriptions help you unlock hidden opportunities.
SIGN UP NOW