Graham Ellis Whitaker
Founder & Managing Partner
Sets the strategic direction of the firm and connects its long-term capital philosophy with research priorities and organizational accountability.
LEADERSHIP & TEAM
Expertise connected by purpose.
Meet the leadership structure connecting investment management, computational research, risk oversight and professional communication.
Leadership & team
Clear responsibilities. Shared perspective.
Our organizational framework brings investment judgment, systematic research and risk considerations into connected discussions. Distinct responsibilities support thoughtful challenge and clear accountability.
Travis Dean Harlan
Chief Investment Officer
Coordinates the investment framework, bringing research conclusions, portfolio considerations and risk assessment into a coherent decision process.
Nathaniel Cole Hensley
Head of Quantum Research & Quantitative Strategies
Directs research into systematic models and advanced computational methods, with an emphasis on validation, interpretability and practical constraints.
Caleb James Mercer
Chief Risk Officer
Oversees the risk framework, including exposure analysis, scenario assessment, model limitations and the escalation of material uncertainties.
Melanie Jo Rourke
Chief Compliance Officer & General Counsel
Coordinates compliance and legal matters, supporting clear responsibilities, documented review and consistent governance.
Marissa Elaine Navarro
Senior Investment Adviser
Supports investment research communication, helping translate complex analytical considerations into clear discussions of objectives, assumptions and risk.
01 / Eutaxion
Clear responsibilities. Shared perspective.
Our organizational framework brings investment judgment, systematic research and risk considerations into connected discussions. Distinct responsibilities support thoughtful challenge and clear accountability.
02 / Eutaxion
Investment and research leadership.
The investment function connects fundamental analysis, model-based research and portfolio considerations. Research leadership focuses on the questions a method is intended to answer and the evidence required to evaluate it.
- Graham Ellis Whitaker — Founder & Managing Partner
- Travis Dean Harlan — Chief Investment Officer
- Nathaniel Cole Hensley — Head of Quantum Research & Quantitative Strategies
03 / Eutaxion
Risk, governance and communication.
Risk oversight examines exposure and uncertainty across the decision process. Legal and compliance responsibilities support governance, while investment communication helps make complex reasoning understandable.
- Caleb James Mercer — Chief Risk Officer
- Melanie Jo Rourke — Chief Compliance Officer & General Counsel
- Marissa Elaine Navarro — Senior Investment Adviser
04 / Eutaxion
A culture of constructive challenge.
A strong research culture makes room for disagreement, alternative explanations and changing views. The quality of a conclusion depends on the questions that have been asked of it.
Documented assumptions and clear responsibilities make that challenge productive.
Continue exploring
A connected perspective.
A considered conversation