United Kingdom · Funded startup

Who invested in Pepgen

One round we have observed, with the 6 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Biotech

Funding summaryUpdated 26 Oct 2026

$115Mraised across 1 round since 2025, from 1 source

Latest round
Round, $115MSept 2025
Investors
6
See who backed them

The rounds

  1. Sept 2025

Founders and team

From Pepgen's own website: 6 on the team.

  • Rod LozanoVice President, Information Technology
  • Melissa MichaelsExecutive Director, Head of Regulatory Affairs CMC
  • Habib Joseph DableNon-Executive Director
  • Heidi HensonNon-Executive Director
  • Lisa WymanNon-Executive Director
  • Sarah VaccaExecutive Director, Clinical Operations

Everyone who backed them

RA Capital ManagementPrivate equity1round
Perceptive AdvisorsAsset manager1round
Janus Henderson InvestorsPrivate equity1round
Samsara BioCapitalVC firm1round
Adage Capital ManagementAsset manager1round

Missing a round, or an investor who was in one? Tell us.

Quick answers about Pepgen

Who invested in Pepgen?

Pepgen's investors include RA Capital Management, Perceptive Advisors, Janus Henderson Investors, Oxford Science Enterprises and Samsara BioCapital, and 1 more on record.

How much has Pepgen raised?

Pepgen has raised $115M across 1 round since 2025.

When did Pepgen last raise?

Pepgen's most recent round was an Undisclosed round of $115M in Sept 2025.

What was Pepgen's biggest round?

Its most recent round, $115M in Sept 2025, is also its largest on record.

Who backed Pepgen first?

Pepgen's first round on record, in Sept 2025, was backed by RA Capital Management, Perceptive Advisors and Janus Henderson Investors and 3 others.

What stage is Pepgen at?

Pepgen's latest named round is an Undisclosed round, in Sept 2025.

Where is Pepgen based?

Pepgen is based in the United Kingdom.

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