Fundraising Fox

Palleon Pharmaceuticals

Waltham, US · Founded 2015 · Delaware corporation · 4 known investors

Biotech

Founders & leadership

Palleon Pharmaceuticals was founded in 2015 by James W. Broderick.

JW
James W. BroderickFounder
JH
John HennessyNamed on SEC filing
KH
Karen HongNamed on SEC filing
JL
James LeeNamed on SEC filing
SH
Stephen HoffmanNamed on SEC filing

Board

JE
Jens EcksteinBoard director
WB
William BurkothBoard director

Investors · 4

SR One Capital ManagementRedwood Cityvia Rajeev Dadoo · board
Pfizer Venturesreported
Takeda VenturesreportedCambridge · $1M – $5M
Vertex Ventures HCreportedSingapore · $500K – $10M

Reported raises · per SEC filings

Form D private placements

$120.6M disclosed across 2 rounds · 2016–2020

▶$100MraisedSep 2020 · 7 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Karan TakharDirector
  • William BurkothDirector
  • Rajeev DadooDirector
  • James W. BroderickExecutive Officer, Director
  • John HennessyExecutive Officer
  • Stephen HoffmanDirector
  • Eric XiaoDirector
Offering amount
$100M
Amount sold
$100M
First sale
Sep 2020
Incorporated
Corporation, Delaware, 2015
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$20.6MraisedNov 2017 · 6 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • John HennessyExecutive Officer
  • Jens EcksteinDirector
  • Karen HongDirector
  • James W. BroderickExecutive Officer, Director
  • James LeeDirector
  • William BurkothDirector
  • Stephen HoffmanDirector
Offering amount
$48.3M
Amount sold
$20.6M
First sale
Jun 2016
Incorporated
Corporation, Delaware, 2015
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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

In the news

Sell or Invest in Palleon Pharmaceuticals Stock Pre-IPOnasdaqprivatemarket.com · Jun 2025Palleon Pharmaceuticals lands $100m Series Bventurecapitaljournal.com · Sep 2020Palleon Pharmaceuticals Raises $100 million Series B to Develop Drugs Targeting Glycan-Mediated Immune Regulation to Treat Cancer and Inflammatory Diseasesbusinesswire.com · Sep 2020Palleon Pharmaceuticals Raises $100M in Series B Funding - FinSMEsfinsmes.com · Sep 2020‍Palleon Pharmaceuticals raises $47.6 mln to develop glycoimmune checkpoint inhibitors | Reutersreuters.com · Oct 2017Palleon Pharmaceuticals Raises $47.6M in Series A Financing - FinSMEsfinsmes.com · Oct 2017

Frequently asked questions

Who founded Palleon Pharmaceuticals?
Palleon Pharmaceuticals was founded by James W. Broderick in 2015.
Who are Palleon Pharmaceuticals's investors?
Palleon Pharmaceuticals's investors include SR One Capital Management, Pfizer Ventures, Takeda Ventures, Vertex Ventures HC.
How much funding has Palleon Pharmaceuticals raised?
Palleon Pharmaceuticals has disclosed $120.6M raised across 2 rounds.
Where is Palleon Pharmaceuticals headquartered?
Palleon Pharmaceuticals is headquartered in Waltham, US.