Gilles Castaigne

Critic
DISC Type : C

Finance Director, Therapeutics at Telix Pharmaceuticals Limited

Charleroi Metropolitan Area, Belgium

Overview

Gilles Castaigne is a Finance Director at Telix Pharmaceuticals, specializing in the life sciences sector. With over a decade of experience, he has a proven record in IPO execution, fundraising, and strategic alliance management. He holds an Executive MBA from the Louvain School of Management and a Masters in business engineering.

He is a motivated and people-focused leader, recognized for his calm, collaborative approach and analytical skills. He combines financial expertise with operational leadership, having previously served as the right-hand to the COO at iTeos Therapeutics, where he enhanced organizational efficiency.

Unique fact: Gilles co-founded a biotech venture with former colleagues, showcasing his entrepreneurial spirit, though the project was halted due to the funding environment.

Personality Overview

Negotiator

Critic

Precise

They like to do things independently and don’t look for support from others.  They are quite likely to negotiate on pricing or other key terms. They don’t appreciate bells and whistles unless backed by data.

Topics They Care About

Life Sciences Finance
His career is centered on corporate finance within biotech, including securing a $125M Series B2 financing and preparing for a $230M Nasdaq IPO at iTeos Therapeutics.
Biotech Operations
As Director of Development Operations, he focused on enhancing operational efficiency and alignment across development functions, chairing a key steering committee.
Strategic Partnerships
Managed key collaborations, including a major partnership with GSK, focusing on governance and ensuring alignment on joint programs to create value.

Media Appearances

Gilles has no verified media appearances

Work History

3-2026
Finance Director, Therapeutics at Telix Pharmaceuticals Limited
8-2025 - 3-2026
Entrepreneur & Independent consultant - Life Sciences at Self Employed
2-2024 - 8-2025
Director, Development Operations at iTeos Therapeutics
7-2021 - 8-2025
Director of Strategic Alliances at iTeos Therapeutics
1-2020 - 12-2021
Associate Director, Finance at iTeos Therapeutics

Education

1-2022 - 5-2023
Executive MBA from Louvain School of Management
2009 - 2014
Master of business engineering from Université catholique de Louvain-la-Neuve

More Information

Social Presence :

Prographics :

Exp : 11 Location : Charleroi Metropolitan Area, Belgium Job Level : Mid-senior Designation : Finance Director, Therapeutics at Telix Pharmaceuticals Limited
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Insights For Selling To Gilles

During A Call Or A Meeting

DO's

  • If you can, show them industry reports or analyst comments instead of sharing anecdotal stories
  • Leverage facts and figures wherever possible; use percentages, numbers etc.
  • Be formal and objective, they will appreciate it more

DONT's

  • Make extra effort to not seem pushy or confrontational
  • Don’t try too hard to build a relationship with them
  • Avoid pushing them too much to involve other stakeholders unless it is critical

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Gilles is

  • Proven ROI, pricing and objective proof points are the factors that sway their decision.
  • Will you ever get a clear answer from Gilles

  • They are comfortable saying no if they are convinced that it is the correct decision.

Insights For Deal Planning

    How fast (or slow) will Gilles move?

  • They are neither the fastest nor the slowest decision makers, they are somewhere in the middle.
  • Can Gilles take some risk or not?

  • They can bear some risk if their analysis backs the decision.

You And Gilles

Personality Compatibility


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