Joël Jean-Mairet

Observer
DISC Type : ci

Board observer at Mineralys Therapeutics, Inc.

Barcelona, Catalonia, Spain

Overview

Joël is the Managing Partner and co-founder of Ysios Capital, a leading European life sciences venture capital firm. An accomplished entrepreneur, he co-founded Glycart Biotechnology, which was later acquired by Roche. He holds a PhD in Cell Biology and Immunotherapeutics from ETH Zürich.

Originally from Switzerland, Joël grew up in Barcelona and now considers himself more of a businessman than a scientist. He is committed to fostering the biotech ecosystem in Spain and Europe, believing that diverse teams deliver superior results and have a greater impact on society.

Unique fact: He co-developed Gazyva, the first-ever drug designated as a "Breakthrough Therapy" by the FDA, which has since received a second breakthrough designation.

Personality Overview

Curious

Value Driven

Assertive

They are generally good communicators and can be hard to convince.  They ask a lot of questions and rely heavily on information and collaterals. They can sound friendly and charming but can quickly change gears to become inquisitive and probing.

Topics They Care About

Biotech Investing
As Managing Partner at Ysios Capital, he actively invests in and builds life science companies, shaping the future of the European biotech ecosystem.
Oncology Drug Development
His work contributed to the approval of multiple cancer drugs, including Gazyva, and his firm actively invests in novel cancer treatments like antibody-drug conjugates (ADCs).
Life Science Entrepreneurship
He successfully co-founded, led, and sold his own biotech company, Glycart, and now serves on the board of multiple startups, guiding the next generation of founders.

Media Appearances

Joël has no verified media appearances

Work History

6-2022 - 2-2023
Board observer at Mineralys Therapeutics, Inc.
4-2021 - 11-2024
Director at Adcendo
9-2020 - 1-2023
Director at Splice Bio
9-2020 - 6-2022
Director at Lava Therapeutics B.V. (NASDAQ: LAVA)
6-2020
Director at ONA Therapeutics

Education

1996 - 2001
PhD from Eidgenössische Technische Hochschule Zürich

More Information

Social Presence :

Prographics :

Exp : 21 Location : Barcelona, Catalonia, Spain Job Level : Leadership Designation : Board observer at Mineralys Therapeutics, Inc.
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Insights For Selling To Joël

During A Call Or A Meeting

DO's

  • Build rapport, it will come handy to handle hard questions later
  • Share testimonials from known people and give multiple examples of product value
  • Help them realize that there is no personal risk in making this decision

DONT's

  • Don’t be too objective but make sure to pad your storytelling with data points
  • Avoid making offhand commitments
  • Don’t try to rush them into a decision, provide all necessary information first

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Joël is

  • Proven value, strong testimonials are important for them, rapport can impact decisions a little.
  • Will you ever get a clear answer from Joël

  • They are practical and friendly, don't expect a clear-cut response often.

Insights For Deal Planning

    How fast (or slow) will Joël move?

  • They like to perform full analysis and can take time to make any decision.
  • Can Joël take some risk or not?

  • They weigh all decisions systematically and are unlikely to take many risks.

You And Joël

Personality Compatibility


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