United States · Series B startup

Who invested in Attralus

One round we have observed, with the 4 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.

Pharma

Funding summaryUpdated 26 Oct 2026

$56Mraised across 1 round since 2024, from 1 source

Latest round
Series B, $56MFeb 2024
Investors
4
See who backed them

The rounds

  1. Feb 2024
    Series B$56M

    Source recordedSEC filing: $56M sold, first sale Jan 2024

Founders and team

From Attralus's own website and the SEC filings it signed: 8 on the team.

  • Glen FirestonePresident, Chief Business Officer
  • Mark TimneyChief Executive Officer
  • Karen RobertsonVice President, Regulatory Affairs
  • James TestaVice President, Finance
  • Christine HuhHead Of Human Resources
  • Gregory BellExecutive Officeri
  • Mehdi KhodadadExecutive Officeri
  • Spencer GuthrieExecutive Officeri

On the board, as filediAlex DennerCorey GoodmanJake BauerNancy Miller-RichRahul KakkarRichard Gaster

Everyone who backed them

Janus Henderson InvestorsPrivate equity1round
Vivo CapitalPrivate equity1round
Redmile GroupVC firm1round
Samsara BioCapitalVC firm1round

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

Also claim to have backed them

These 2 firms list Attralus as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

Alpha Wave GlobalPrivate equityPer its own site
Yarrow CapitalVC firmPer its own site

Quick answers about Attralus

Who invested in Attralus?

Attralus's investors include Janus Henderson Investors, Vivo Capital, Redmile Group and Samsara BioCapital.

How much has Attralus raised?

Attralus has raised $56M across 1 round since 2024.

When did Attralus last raise?

Attralus's most recent round was a Series B of $56M in Feb 2024.

What was Attralus's biggest round?

Its most recent round, $56M in Feb 2024, is also its largest on record.

Who backed Attralus first?

Attralus's first round on record, in Feb 2024, was backed by Janus Henderson Investors, Vivo Capital and Redmile Group and 1 others.

What stage is Attralus at?

Attralus's latest named round is a Series B, in Feb 2024.

Where is Attralus based?

Attralus is based in the United States.

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