Our Team
Board of Directors
Ben Dear
Ben founded Osmosis following the financial crisis of 2008 believing there was an opportunity to change the way capital is allocated as a force for good. With the intent of growing a globally recognised brand within the asset management industry, Ben sought a sustainable investment solution that would work for the economy and the environment and thus encourage mainstream adoption.
One of the first advocates of a quantifiable approach to sustainable investment, Ben is a regular speaker and panellist on the role of environmental data in the sustainable transition.
Graeme Stephen
Graeme has been in the financial services industry for more than 25 years specialising in fund management in the alternative sector. After seven years with Clifford Chance, Graeme joined Man Investments where he was one of the original directors responsible for Corporate Finance, Legal, Structuring & Compliance, developing products for global distribution. He built a pro-active compliance team responsive to multi-jurisdictional regulatory requirements.
Graeme is a professional securities lawyer. He has created his own insurance business in London and maintains his professional standing as a solicitor with the Law Society.
Sandra Robertson
Sandra is the founding Chief Investment Officer and Chief Executive Officer of OUem. As Chief Investment Officer, Sandra has discretion for all investment decisions. As Chief Executive Officer, she is responsible for implementing the overall strategy of the business and ensuring the success of the company. Sandra also sits on the Board of OUem. Sandra is a fellow at Oriel College, Oxford, a Commissioner for the Royal Commission of the Exhibition 1851, and a member of the Investment Committee of the Nature Conservancy.
Sandra has been recognised by several industry awards for her expertise in endowment investing, including a Private Equity Trailblazer award from Women in Private Equity, Power 100 CIO, Top 100 Most Influential Women in Finance, and 100 Women in Finance’s European Industry Leadership Award.
Stefanie Drews
Stefanie Drews was promoted to the role of President of Nikko Asset Management in April 2022. With a deep commitment to sustainable investing and a wealth of experience in international financial markets, she uses her strategic ability to lead the company’s expansion both within Japan and in key financial markets around the world. The first female foreign leader of a Japanese financial firm, Stefanie’s rise is ground-breaking. Joining in 2014, she worked her way up, leading eight different functions, driving innovation, digitalisation, and integration firmwide from the bottom-up.
She graduated from Oxford and Harvard and speaks five languages. Stefanie was the only member not based in the US to be selected by Pensions & Investments for its inaugural class of Influential Women in Institutional Investing and was later named CEO of the Year Japan, by Asia Asset Management.
Michael Even, CFA
Mike Even is an investment professional with over 35 years of industry experience and is a member of the Osmosis Investment Oversight and Development Committee. Most recently, Mike was the Chairman of Man Numeric Investors in Boston and was a member of the Man Group Executive Committee. He joined Numeric in 2006 and served as President and CEO until December 2016. Prior to joining Numeric, Mike worked for Citigroup for nine years building a global asset management organisation. After Citi merged with Travelers, he became global CIO of the Private Bank and eventually, global CIO for and Co-Head of Citigroup Asset Management, overseeing investment teams running more than $500B in client assets.
Mike received a Bachelor of Arts degree in economics, a Bachelor of Science degree in operations research from Cornell University and a master’s degree in business from the Massachusetts Institute of Technology. Mike is a CFA® charterholder.
Michaela Edwards, CFA
Michaela Edwards is a Partner and member of the Investment Committee of Capricorn Investment Group. Prior to joining Capricorn in 2019, she spent nine years as a Senior Portfolio Manager with Norges Bank Investment Management, the sovereign wealth fund of Norway, where she sourced, constructed and managed a two billion dollar global environmental portfolio in addition to mandates in Latin America and developed markets. Prior to Norges, Michaela worked as a research analyst for Russell Investments in London and New York.
Michaela received an MSc in Investment Management from Cass Business School in London and her Bachelor degree in International Business from Oslo University College. She is a CFA charter holder.
Investment Management
Robbie Parker, CFA
Robbie is the Chief Investment Officer at Osmosis as well as Chair of the Osmosis Investment Oversight and Development Committee. He has direct responsibility for the investment process as well as research and development initiatives. Robbie’s expertise lies within non-traditional, sustainable alpha sources and integrating those within quantitative frameworks. Robbie has worked with clients to develop and launch multifactor funds that target an uncorrelated alpha source whilst significantly reducing a portfolio’s environmental impact. Such portfolios have committed capital in excess of USD 13 billion.
Robbie holds a BSc in Geography and Economics from the London School of Economics and has achieved the CFA designation.
Drew Spangler
Drew has over 25 years of experience in the investment management industry and is a member of the Osmosis Investment Oversight and Development Committee. Prior to joining Osmosis, he spent 24 years with GMO in Boston. From 2011 to 2017, he was the senior portfolio manager responsible for international fundamental equities. In a prior role, he served as the senior quantitative analyst supporting the fundamental international equities team as well as the portfolio manager responsible for the energy, mining and utilities sectors. He has extensive experience with fundamental investment analysis, quantitative investment analysis, security valuation, financial modelling, risk measurement and portfolio construction.
Drew received his Bachelor of Science in Applied Mathematics and Bachelor of Arts in History, both from Washington University in St. Louis, Missouri. He has earned the Chartered Financial Analyst designation (CFA charter) awarded by the CFA Institute.
Alex Stephen
Alex has over 25 years of experience in financial markets, including 20 years of experience in managing client portfolios. In his current role at Osmosis, Alex leads the portfolio management and execution teams. Before his time at Osmosis, Alex spent eight years in Australia, working with Redpoint Investment Management, a quantitative equity boutique and Antares Equities. Prior to leaving the UK, he worked for eight years as a portfolio manager at Legal & General Investment Management (LGIM), managing a number of index portfolios.
Alex holds a BA in Economics and Philosophy from Southampton University and holds the Investment Management Certificate.
Elie Salman, CFA, FRM
Elie joined Osmosis in April 2020 as a performance and risk analyst with a focus on specific factor analysis. Prior to joining Osmosis, Elie worked as a product manager at Style Analytics where he worked on developing and testing fundamental and ESG factor performance and risk models used by tier one and tier two institutional consultants and asset managers.
Elie has a bachelor degree in investment, finance and Banking and an MSc in Finance. He holds a graduate certificate in Mathematics and Statistics and has earned the Chartered Financial Analyst designation (CFA charter) awarded by the CFA Institute. He also holds the FRM (Financial Risk Manager) designation issued by the Global Association of Risk Professionals (GARP).
Lakshman Sathananthan, CFA
Lakshman joined Osmosis in 2017, after successfully graduating through the Osmosis internship program. He works within both the Osmosis Environmental Research Team and the Portfolio Management team. Lakshman specialises in the gathering, cleaning and standardising of Environmental data for utilisation in the MoRE model. As part of the Osmosis program to sponsor the internal advancement of junior employees’ careers, he has worked closely with the portfolio management team, with a specific focus on the Smart Beta Fund and the Market Neutral Fund.
Lakshman holds a Bachelor’s degree in Economics from the University of Nottingham and has earned the Chartered Financial Analyst designation (CFA charter) awarded by the CFA Institute.
Investment Research
Lennart Hermans
Prior to joining Osmosis, Lennart was a senior technical officer at the Carbon Disclosure Project (CDP), where he developed assessment methodologies for corporate disclosures on climate change, water security and deforestation. Lennart also led work on developing reporting frameworks with the Global Reporting Initiative (GRI) on waste and with the European Commission on best environmental practices targeting high impact sectors.
Lennart holds a Master in Social Entrepreneurship from Hult International Business School and a MSc. in Bioscience Engineering from the KU Leuven, including a semester abroad at the University of Natural Resources, Vienna.
Dr. Tom Steffen
As head of Osmosis’ quantitative research, Tom leads the team’s research efforts focused on model improvements and alpha opportunities within sustainability data. His work bridges the research and investment functions, demonstrating the connection between Resource Efficiency and stock returns across global markets and the uncorrelated nature of the factor to traditional market patterns. Previously, he was a postdoctoral fellow at the Geneva Finance Research Institute, studying responsible investment strategies and ESG impacts on portfolios. Tom’s research appears in academic journals.
Tom holds a Ph.D. in financial market microstructure and an M.Sc. in Carbon Finance from the University of Edinburgh, and a B.Sc. in Business Administration from the University of Mannheim.
Shikhar Verma
Shikhar joined Osmosis in 2017, graduating successfully through the Osmosis internship program. He works within the Osmosis Environmental Research Team where he specialises in the gathering, cleaning and standardising of environmental data for utilisation in the MoRE model. Since 2018, as part of the Osmosis program to sponsor the internal advancement of junior employees’ careers, he has worked closely with the portfolio management team, with a specific focus on the Low Volatility Fund.
Shikhar holds a Bachelor’s degree in Business Administration and an MSc in Accounting and Finance from Queen Mary, University of London and recently completed Level I of the CFA.
Jamie Padkin, CFA
Jamie leads the team working on the expansion of Osmosis’ offering into the Emerging Markets. He works closely with corporate environmental data, and the effective utilisation of this data in portfolio construction. Jamie authored a popular research piece on ‘The Obstructive Role of Scope 3 Emissions Data in Portfolio Construction’, which explored the environmental and financial implications of using estimated emissions data in the creation of portfolios.
Jamie holds a BSc in Chemistry from the University of Birmingham, the CFA Certificate in ESG Investing, and is a CFA Charterholder.
Mavis Chan
Mavis joined the Quantitative Research team in 2021. Alongside the Head of Quantitative Research, Mavis researches ways to continually optimise and make model improvements to the Osmosis Resource Efficiency Factor. This involves analysing multi-industry Resource Efficiency scores and studying the behaviour of the Resource Efficiency Factor against traditional style factors to help bridge together the environmental and economic rationale behind the Osmosis Model of Resource Efficiency. Mavis also works closely with the Environmental Research team and Portfolio Management team to identify key trends in companies’ environmental and financial data across both the developed and emerging markets, affirming potential investment opportunities.
Mavis holds both a BA and an MSc in Physical Natural Sciences from the University of Cambridge. She has also had prior experience within the sales & trading division of an investment bank in London.
Benjamin Stimpson
Benjamin works within the Environmental Research team collecting and validating environmental data, maintaining and improving sectoral definitions, and understanding why environmental sustainability improves corporate performance. He also works on the Osmosis active ownership strategy, with a focus on proxy voting and engagement on environmental disclosure. Benjamin has a particular interest in the relationship between companies and biodiversity. He is a published author on the impacts of oil extraction on wildlife and is working towards a doctorate on corporate biodiversity impact metrics and their integration into financial decision-making, using the Murchison Falls National Park in Uganda as a case study. Prior to joining Osmosis, Benjamin also conducted academic research on sovereign green bond policy and corporate SDG prioritisation.
Benjamin holds a BA in Biological Sciences from the University of Oxford, an MSc in Environmental Technology (specialising in Environmental Economics & Policy) from Imperial College London, and is currently a DPhil candidate at the University of Oxford, connected to the Department of Biology and Saïd Business School.
Alienor Hammer
Alienor joined the Environmental Research Team in 2021. She’s currently working on implementing biodiversity-related metrics into portfolios. Alienor has researched projects on real estate and led engagement campaigns for the past few years, both internally and as part of the CDP Non-Disclosure Campaign.
Alienor holds a BSc in Environmental Policy with Economics from the London School of Economics, an MSc in Marine Systems and Policies from the University of Edinburgh, and an MSc in Science Communication from Imperial College London. She recently completed the CFA Climate Change Investing Certification and is completing the second unit of the Investment Management Certificate.
Lily Andrews
Lily is part of the team investigating environmental disclosure in emerging markets. Since finishing her masters in 2022 she has worked for the Value Reporting Foundation, aiding its consolidation into the ISSB and commitment to improving the international applicability of the SASB and TCFD standards.
Lily recently received a CFA Climate Change Investing Certification and has an MA in Climate Science from Columbia University’s Climate School in New York City. She also holds a BA in Geography from the University of Leeds, with additional recognition from a quantitative research scholarship she was awarded from The Nuffield Foundation during her final year.
Jonathan Mancer
Jonathan is part of the team investigating environmental disclosure in emerging markets. As a new part of the Environmental Research team, he will be responsible for engagement with firms on disclosure and other topics, with a particular focus on emerging market firms.
Jonathan holds an MSc in Environmental Technology (specialising in resource management) from Imperial College London and a BSc in Environmental Science from the University of British Columbia. He also recently passed the CFA’s Certificate in Climate and Investing.
Milena Agüero Memmel
Milena is part of the team investigating environmental disclosure in emerging markets. As a new part of the Environmental Research team, she will be responsible for engagement with firms on disclosure and other topics, with a particular focus on emerging market firms.
Milena holds an MSc in Environment and Development from the University of Leeds, with a focus on the Global South. She graduated as an Environmental Engineer at Universidad Nacional de Itapúa, including a semester abroad at Universidade Federal do Paraná, Brazil.
Suzanne Moore
Suzanne works closely with the Environmental Research team to extract, clean, validate and standardise corporate environmental data. An experienced research analyst,. Suzanne has previously worked at various European investment banks conducting fundamental analysis, financial modelling and equity valuation on publicly listed European equities.
Suzanne holds a MA (Hons.) in Economics from the University of Edinburgh and has completed the CFA Level 1.
Mark Ingham, CFA
Mark recently joined Osmosis as a quantitative developer and researcher and is responsible for developing and maintaining Osmosis’ quantitative research systems and models as well as conducting alpha-signal research. Mark is a highly experienced quantitative researcher and portfolio manager, having spent 14 years at GMO, four as a quant analyst and ten as a portfolio manager. During this time, he created and managed various funds including the GMO Quality and GMO Tactical Opportunities Funds. He was also Head of the Emerging Equities Quant Team for four years.
Mark gained his Master in Mathematics from Oxford University and is a CFA* charter holder. Mark also serves as an external adviser to Kidney Research UK, the UK’s largest funder of kidney research.
Business Development
Anthony Chisnall
Anthony has over 20 years’ experience in Asset Management and Investment Banking. Having spent most of his career as a Fund Manager, he has extensive investment and product knowledge, which he has successfully leveraged in his more recent client relationship and business development roles. Anthony was Head of Investor Relations at Gulf International Bank Asset Management, where he oversaw the Bank’s relationships with Institutional Investors, Sovereign Wealth Funds, Family Offices and Investment Advisors. Prior to this, Anthony worked for Bank of Boston in the U.S., HSBC, and Barclays.
Anthony received a B.A (Hons.) in Business Studies from Kingston University, where he specialised in finance and quantitative methods. He wrote his dissertation on “Short-termism in the UK Stock Market” which remains one of the biggest challenges to sustainable investment today. Anthony recently completed the CFA ESG Certification.
Susan Hunnisett
Susan heads Investor Relations at Osmosis. Susan started her career in finance in Switzerland. She spent five years at Hinduja Bank in Geneva as Head of Marketing and Communications before she moved to London to pursue Business Development with S.W. Mitchell Capital. She joined Osmosis in April 2019.
Susan read Politics at the University of Guelph, Canada, with an emphasis on International Relations. She spent semesters at the Jagiellonian University in Kraków, Poland and the Cité Internationale Universitaire de Paris in France.
Richard Pace
Rich has 22 years of experience working across both the traditional and alternative asset management industry in Business Development and Investor Relations roles. Prior to working for Osmosis, Rich was the Chief Marketing Officer for Columbus Circle Investors overseeing all aspects of institutional marketing, business development, and investor relations for the firm’s $15 billion alternative and long-only institutional client base. This included working with Corporate and Public Pension Funds, Endowments, Foundations, Fund of Funds, and Multi-Employer Pension Plans.
Rich holds a Bachelor of Science and Finance from Providence College.
Marketing Communications
Lisa Harrison
Lisa has 20 years’ experience working across sales, client service and marketing, principally within asset management. Lisa developed an interest in responsible investment early on in her career when she worked for the UK’s first ever pooled SRI fund run by Friends Provident. She later held positions at LGIM, Aviva Asset Management and most recently BlackRock product marketing, where she focused on content strategy for multi-asset and ESG.
Lisa has an LLB in Law from Southampton University and holds the Investment Management Certificate.
Naomi Fisher
Naomi has over 5 years experience in supporting roles across various sectors and is the Executive Assistant to the Co-Founder of Osmosis, Ben Dear. As well as supporting Ben, she also assists the wider team with administrative tasks as needed.
Naomi studied Performing Arts at Northbrook College, achieving a Distinction.
Holly Henson
Holly recently joined Osmosis from EFG Asset Management, where she developed marketing experience in the financial services sector. Her role focused on event organisation, communications and creating marketing collateral. Holly completed prior work experience at Actual Experience during her undergraduate degree, working to raise brand awareness through thought leadership.
Holly has a Bachelor of Science in Geography from Durham University, authoring a dissertation investigating mining pollution in the North East of England.
Finance, Legal & Operations
Graeme Stephen
Graeme has been in the financial services industry for more than 25 years specialising in fund management in the alternative sector. After seven years with Clifford Chance, Graeme joined Man Investments where he was one of the original directors responsible for Corporate Finance, Legal, Structuring & Compliance, developing products for global distribution. He built a pro-active compliance team responsive to multi-jurisdictional regulatory requirements.
Graeme is a professional securities lawyer. He has created his own insurance business in London and maintains his professional standing as a solicitor with the Law Society.
Andrew Harmer
Andrew has 20 years’ experience, principally within financial services. Prior to joining Osmosis in 2014, he held senior finance positions in John Laing plc, as Group Financial Controller and company director and, prior to that, in Man Group plc., heading up the development of financial and regulatory reporting for the Alternative Investments business.
Other experience has included retail banking, insurance and precious metals trading and refining. He is a Fellow of the Institute of Chartered Accountants England & Wales, holds an MBA and a Bachelor of Science in Mechanical Engineering.
Nevelon Cheand CGMA
Nevelon has over 20 years’ experience in investment management. Prior to joining Osmosis in 2018, he worked for Harmonic Capital Partners, a global systematic hedge fund, as the Head of Operations.
Nevelon holds a BSc in Mathematics from the University of Leeds and is a member of the Chartered Institute of Management Accountants and an Associate Chartered Global Management Accountant (CGMA). He also holds Investment Management Certificate (CFA UK).
Jake Atkins
Jake joined Osmosis in January 2021 as an Operations Analyst. His role includes reconciliation, trade processing and exception management. Prior to this, he worked as a Portfolio Administrator at Unigestion Asset Management specialising in Equities and Trade Processing. He started his career in Finance at a South African Stockbrokerage in Trading Operations in 2016.
Jake holds a BA(Hons) in Philosophy.
Liam O’Connell
Liam joined Osmosis in May 2021 as a performance analyst. A recent graduate, Liam has recently passed unit 2 of the Investment Management Certificate and is a level 1 candidate for the CFA. Prior to joining Osmosis, Liam spent a placement year in the Treasury Solutions department of Link Asset Services where his role included developing and maintaining financial models and economic report writing.
Liam holds an MSc in Finance and Investment from the University of Exeter and a BSC in Politics and Economics from Aston University. Liam recently passed the CFA Level I and is working towards Level II.
Graeme Stephen
Graeme has been in the financial services industry for more than 25 years specialising in fund management in the alternative sector. After seven years with Clifford Chance, Graeme joined Man Investments where he was one of the original directors responsible for Corporate Finance, Legal, Structuring & Compliance, developing products for global distribution. He built a pro-active compliance team responsive to multi-jurisdictional regulatory requirements.
Graeme is a professional securities lawyer. He has created his own insurance business in London and maintains his professional standing as a solicitor with the Law Society.
Tristan Salomon
Tristan works within the Operations team at Osmosis. Prior to joining, he was an Analyst at Commodity Focused Hedge Fund Svelland Capital, working within Operations, Marketing and Investor Relations.
Tristan holds a BSc in Economics from Royal Holloway, University of London.
Lisa Jackson-Hunt
Lisa joined Osmosis as HR Business Partner and has 18 years of HR experience within the Financial Services industry. Lisa’s last role was at Aaro Capital where she developed and then managed their HR function. Lisa has also worked as a HR Business Partner for both Partnership Assurance and BlueCrest Capital Management, supporting their leadership teams with their people and culture strategies.
Lisa holds a BA in English Literature and English Language from the University of Essex. Lisa was awarded chartered MCIPD status in 2016.