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Photo of Joël Jean-Mairet, General Partner at Ysios Capital
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Investing Profile

Joël Jean-Mairet

Current Investing Position
Ysios Capital General Partner
Investment Range
$1M - $7.5M
Sweet Spot
$1M
Investments On Record
24
Current Fund Size
€126.4M

Joël Jean-Mairet is on these Sector & Stage Rankings

Joël Jean-Mairet's Investments On Record (10)

CompanyStageDateRound SizeTotal Raised
Splice Bio
Series BJun 2025$140M
Series AFeb 2022$57M
Series UnknownSep 2020
$190M
Co-investors: Ed Mathers (New Enterprise Associates (NEA)), Carole Nuechterlein (Roche Venture Fund), Beat Steffen (Novartis Venture Fund), Daniela Begolo (EQT Life Sciences), Laia Crespo (Sanofi Ventures), Sylvain Sachot (Asabys Partners)
ADCendo
Series BNov 2024$140M
Series AApr 2023$34M
Series AApr 2021$62M
$250M
Co-investors: Marten Steen (HealthCap), Ohad Hammer (Pontifax Venture Capital), Iyona Rajkomar (Pontifax Venture Capital), Reza Halse (RA Capital)
Mineralys Therapeutics
Series BJun 2022$120M
$240M
Co-investors: Derek DiRocco (RA Capital), Olivier Litzka (Andera Partners)
Aura Biosciences
Post Ipo EquityNov 2021
Series UnknownMar 2021$80M
Series CDec 2017$30M
Series BMar 2015$21M
$130M
Co-investors: Mark Chin (Arix Bioscience)
Lava Therapeutics
Series CSep 2020$83M
$100M
Co-investors: Guido Magni (Versant Ventures), Nanna Luneborg (Forbion), Laia Crespo (Sanofi Ventures)
Ona Therapeutics
Series AJun 2020$34M
$34M
Co-investors: Jose Mesa (Alta Life Sciences)
AM Pharma
Series UnknownMar 2020$25M
Series FJul 2019$130M
Series ESep 2014$16M
Series DSep 2011$40M
$210M
Co-investors: Geert-Jan Mulder (Forbion), Laia Crespo (Sanofi Ventures), Rémi Droller (Kurma Partners), Martijn Kleijwegt (EQT Life Sciences), Felice Verduyn - van Weegen (EQT Life Sciences), Raphael Wisniewski (Andera Partners)
Medlumics
Series BMar 2017$37M
Series ADec 2011$5M
$64M
Co-investors: Olivier Litzka (Andera Partners)

Investors who invest with Joël Jean-Mairet

Photo of Cristina Garmendia, General Partner at Ysios Capital

Ysios Capital

Photo of Julia Salaverría, General Partner at Ysios Capital

Ysios Capital

Photo of Karen Wagner, General Partner at Ysios Capital

Ysios Capital

Photo of Beat Steffen, Managing Director at Novartis Venture Fund

Novartis Venture Fund

Photo of Carole Nuechterlein, Managing Partner at Roche Venture Fund

Roche Venture Fund

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