John Johnston

Director/Board Member at MAXCYTE, INC.

Net worth: 243 913 $ as of 30/05/2026

67 year

61 connections

Finance

Consumer Services

Health Technology

Profile

Mr. John J.
Johnston is an Independent Non-Executive Director at MaxCyte, Inc. He is on the Board of Directors at MaxCyte, Inc. Mr. Johnston was previously employed as an Independent Non-Executive Chairman by Constellation Healthcare Technologies, Inc., an Independent Non-Executive Director by Midatech Pharma Plc, an Independent Non-Executive Director by Action Hotels Plc, a Non-Executive Chairman by Flowgroup Plc, a Head-Sales by Nomura Code Securities Ltd., a Non-Executive Director by Revera Asset Management Ltd., a Director-Small Companies Technology by Legg Mason, Inc., and a Head-Small Companies by Scottish Amicable Plc.
He also served on the board at Seymour Pierce Ltd. He received his undergraduate degree from the University of Abertay and an MBA from the University Of Dundee.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
MAXCYTE, INC. 0.19%	16/06/2026	201,581 ( 0.19% )	243 913 $	30/05/2026

John Johnston active positions

Companies	Position	Start
MAXCYTE, INC.	Director/Board Member	31/12/2015

All active positions of John Johnston

Former positions of John Johnston

Companies	Position	End
BIODEXA PHARMACEUTICALS PLC	Director/Board Member	25/02/2019
ACTION HOTELS PLC	Director/Board Member	30/11/2018
FLOWGROUP PLC	Chairman	25/10/2017
CONSTELLATION HEALTHCARE TECH INC	Chairman	29/01/2017
Nomura Code Securities Ltd. Nomura Code Securities Ltd. Investment ManagersFinance Provides advisory, fundraising, and broking services	Institutional Sales	28/02/2013

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Training of John Johnston

Experiences
Positions held

Active

Inactive

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Private companies

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Connections

1st degree connections

1st degree companies

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Female

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Executives

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Linked companies

Private companies	12
Legg Mason, Inc. Legg Mason, Inc. Investment ManagersFinance Provides investment and asset management services	Finance
MaxCyte, Inc. MaxCyte, Inc. BiotechnologyHealth Technology Specializes in cell modification technologies to enable the discovery, development, manufacturing, and delivery of therapeutic products	Health Technology
Seymour Pierce Ltd. Seymour Pierce Ltd. Investment Banks/BrokersFinance Provides corporate brokerage and finance services	Finance
Flowgroup Plc Flowgroup Plc Electric UtilitiesUtilities Focuses on the commercialization of intellectual property and technical product development of alternative energy products	Utilities
Constellation Healthcare Technologies, Inc. Constellation Healthcare Technologies, Inc. Miscellaneous Commercial ServicesCommercial Services Provides holistic, integrated suite of practice management support services	Commercial Services
Scottish Amicable Plc Scottish Amicable Plc Regional BanksFinance Provides financial and commercial services	Finance
University Of Dundee University Of Dundee Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Revera Asset Management Ltd. Revera Asset Management Ltd. Investment ManagersFinance Revera is a fundamental investor that uses bottom-up analytical skills to identify businesses where the long-term value of future cash flows is not fully recognized by investors. The firm’s approach also takes account the strategic, operational, financial or macroeconomic risks attached to achieving their goals. They focus exclusively on UK equities, using their experience to build portfolios designed to offer attractive returns over the medium term.	Finance
Nomura Code Securities Ltd. Nomura Code Securities Ltd. Investment ManagersFinance Provides advisory, fundraising, and broking services	Finance
University of Abertay University of Abertay Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Action Hotels Plc Action Hotels Plc Hotels/Resorts/Cruise linesConsumer Services Owns and operates hotels	Consumer Services
Biodexa Pharmaceuticals Plc Biodexa Pharmaceuticals Plc Pharmaceuticals: MajorHealth Technology Designs and manufactures nanomedicines	Health Technology