Fundraising Fox

Arsenal Biosciences

South San Francisco, US · Founded 2018 · Delaware corporation · 4 known investors

arsenalbio.com ↗

Arsenal Biosciences is a clinical-stage company developing programmable cell therapies to treat solid tumors. The company uses computational and engineering approaches to create cancer medicines.

BiotechHealthtechMedical Devices

Founders & leadership

JA
James AhlersExecutive Officer
KD
Kenneth DrazanExecutive Officer, Director
IP
Irene PleasureExecutive Officer
MN
Margaret NibbiExecutive Officer
VB
Valentin BarsanDirector
SP
Sean ParkerDirector
BB
Brook ByersDirector
BS
Beth SeidenbergDirector
MF
Matthew FustDirector

Investors · 4

ARCH Venture PartnersChicago · $50K – $250M
Hitachi VenturesMunich
Westlake Village BioPartnersLos Angeles · $100K – $5Mvia Beth Seidenberg · board
Kleiner PerkinsreportedMenlo Park · $500K – $15Mvia Beth Seidenberg · board

Reported raises · per SEC filings

Form D private placements
▶$325.4MraisedSep 2024 · 26 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Matthew FustDirector
  • Valentin BarsanDirector
  • Sean ParkerDirector
  • Brook ByersDirector
  • James AhlersExecutive Officer
  • Kenneth DrazanExecutive Officer, Director
  • Irene PleasureExecutive Officer
  • Beth SeidenbergDirector
Offering amount
$325.4M
Amount sold
$325.4M
First sale
Jul 2024
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$220.8MraisedSep 2022 · 17 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Sean ParkerDirector
  • Kenneth DrazanExecutive Officer, Director
  • Beth SeidenbergDirector
  • Margaret NibbiExecutive Officer
  • Matthew FustDirector
  • Valentin BarsanDirector
  • Brook ByersDirector
Offering amount
$230.8M
Amount sold
$220.8M
First sale
Feb 2022
Incorporated
Corporation, Delaware, 2018
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$33MraisedSep 2022 · 9 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Kenneth DrazanExecutive Officer, Director
  • Margaret NibbiExecutive Officer
  • Matthew FustDirector
  • Sean ParkerDirector
  • Brook ByersDirector
  • Beth SeidenbergDirector
Offering amount
$33M
Amount sold
$33M
First sale
Dec 2020
Incorporated
Corporation, Delaware, 2018
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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

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