Diane Seymour-Williams

Diane Seymour-Williams

Director/Board Member at MERCIA ASSET MANAGEMENT PLC

Net worth: 428 005 $ as of 2026-01-30

67 year
Finance
Miscellaneous
Consumer Services

Profile

Diane Seymour-Williams currently works at Patria Private Equity Trust Plc, as Independent Non-Executive Director from 2017, Mercia Fund Management Ltd., as Senior Independent Director, Mercia Asset Management Plc, as Senior Independent Non-Executive Director, Praxis Group Ltd., as Independent Non-Executive Director from 2019, SEI Investments (Middle East) Ltd., as Non-Executive Director, Acorn Capital Advisers Ltd., as Director, and Lloyd George Management, as Head-Client & Business Strategy.
Ms. Seymour-Williams also formerly worked at Neptune-Calculus Income & Growth VCT Plc, as Chairman, Baillie Gifford China Growth Trust plc, as Independent Non-Executive Director from 2010 to 2019, Brooks MacDonald Group Plc, as Independent Non-Executive Director, Columbia Threadneedle (IRL) II Plc, as Director, Calculus VCT PLC, as Non-Executive Director from 2017 to 2018, The China Fund, as Director from 1993 to 2005, Calculus Capital Ltd., as Director from 2007 to 2013, The Pakistan Fund, as Director from 1993 to 1996, Columbia Threadneedle (IRL) Plc, as Director, Batavia Fund, as Director from 1993 to 1996, Greater Korea Trust, as Director from 1993 to 1997, LG China Fund Plc, as Director, Deutsche Bank AG, as Head-Global Equities, Morgan Grenfell & Co. Ltd., as Chief Executive & Information Officer, Columbia Threadneedle (EM) Investments Ltd., as Global Head-Relationship Management, and Spencer House Capital Management LLP, as Portfolio Manager from 2006 to 2007.
Ms. Seymour-Williams received her graduate degree from the University of Cambridge.

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
2025-09-29 31,500 ( 0.02% ) 268 000 $ 2026-01-30
2025-03-30 250,000 ( 0.06% ) 94 343 $ 2026-01-30
2026-01-01 15,000 ( 0.03% ) 65 662 $ 2026-01-30

Diane Seymour-Williams active positions

CompaniesPositionStart
PATRIA PRIVATE EQUITY TRUST PLC Director/Board Member 2017-06-06
PRAXIS GROUP LIMITED Director/Board Member 2019-07-31
MERCIA ASSET MANAGEMENT PLC Director/Board Member 2020-11-02
Acorn Capital Advisers Ltd.
Director/Board Member -
Private Equity Investor -
Corporate Officer/Principal -
SEI Investments (Middle East) Ltd.
Director/Board Member -

Former positions of Diane Seymour-Williams

CompaniesPositionEnd
BAILLIE GIFFORD CHINA GROWTH TRUST PLC Director/Board Member 2019-06-11
CALCULUS VCT PLC Director/Board Member 2018-12-30
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See the detail of Diane Seymour-Williams's experience

Training of Diane Seymour-Williams

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

Connections

40

1st degree connections

24

1st degree companies

Male

Female

Members of the board

Executives

Linked companies

Private companies24

Finance

Miscellaneous

Finance

Finance

Columbia Threadneedle (IRL) II Plc

Finance

Miscellaneous

Miscellaneous

Finance

The China Fund

Miscellaneous

Finance

Consumer Services

Finance

Finance

Finance

Finance

Finance

Miscellaneous

Finance

Finance

SEI Investments (Middle East) Ltd.

Batavia Fund

Miscellaneous

Acorn Capital Advisers Ltd.

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