Fundraising Fox

Synthorx

acquired by Sanofi

La Jolla, US · Founded 2014 · 6 known investors

Clinical-stage biotech expanding the genetic alphabet with synthetic nucleotides; acquired by Sanofi for $2.5B in 2020.

Biotech

Founders & leadership

JL
Jay LichterNamed on SEC filing
DD
Douglas DownsNamed on SEC filing
FR
Floyd RomesbergNamed on SEC filing
CT
Court TurnerNamed on SEC filing

Investors · 6

Reported raises · per SEC filings

Form D private placements

$34.7M disclosed across 3 rounds · 2014–2018

$26.5MraisedApr 2018 · 10 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Jay LichterDirector
  • Floyd RomesbergDirector
  • Peter ThompsonDirector
  • Andrew LevinDirector
  • Laura ShawverExecutive Officer, Director
Offering amount
$63.7M
Amount sold
$26.5M
First sale
Apr 2018
Incorporated
Corporation, Delaware, 2014
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$5MraisedJul 2016 · 5 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Floyd RomesbergDirector
  • Court TurnerExecutive Officer, Director
  • Jay LichterDirector
  • Andrew LevinDirector
  • Tighe ReardonExecutive Officer
Offering amount
$10M
Amount sold
$5M
First sale
Jul 2016
Incorporated
Corporation, Delaware, 2014
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$3.1MraisedJun 2014 · 3 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Jay LichterDirector
  • Douglas DownsExecutive Officer
  • Floyd RomesbergDirector
  • Court TurnerExecutive Officer, Director
Offering amount
$6.3M
Amount sold
$3.1M
First sale
May 2014
Incorporated
Corporation, Delaware, 2014
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Frequently asked questions

What does Synthorx do?
Clinical-stage biotech expanding the genetic alphabet with synthetic nucleotides; acquired by Sanofi for $2.5B in 2020.
Who are Synthorx's investors?
Synthorx's investors include Avalon BioVentures, Boutique Venture Partners, Correlation Ventures, OUP (Osage University Partners), RA Capital, venBio Partners.
How much funding has Synthorx raised?
Synthorx has disclosed $34.7M raised across 3 rounds.
Who acquired Synthorx?
Synthorx was acquired by Sanofi.
Where is Synthorx headquartered?
Synthorx is headquartered in La Jolla, US.