United States · Series A startup

Who invested in Firefly Bio

One round we have observed, with the 2 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

$94Mraised across 1 round since 2024, from 1 source

Latest round
Series A, $94MFeb 2024
Investors
2
See who backed them

The rounds

  1. Feb 2024
    Series A$94M

    Source recordedSEC filing: $40M sold, first sale Dec 2023

Founders and team

From the SEC filings it signed: 3 on the team.

  • Bernhard GeierstangerExecutive Officeri
  • John FlygareExecutive Officeri
  • Scott HirschExecutive Officer, Directori

On the board, as filediAlexander MaywegJerel DavisPankaj BhargavaPeter ColabuonoTodd Foley

Everyone who backed them

Versant VenturesVC firm1round
Eli LillyCorporate VC1round

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

Quick answers about Firefly Bio

Who invested in Firefly Bio?

Firefly Bio's investors include Versant Ventures and Eli Lilly.

How much has Firefly Bio raised?

Firefly Bio has raised $94M across 1 round since 2024.

When did Firefly Bio last raise?

Firefly Bio's most recent round was a Series A of $94M in Feb 2024.

What was Firefly Bio's biggest round?

Its most recent round, $94M in Feb 2024, is also its largest on record.

Who backed Firefly Bio first?

Firefly Bio's first round on record, in Feb 2024, was backed by Versant Ventures and Eli Lilly.

What stage is Firefly Bio at?

Firefly Bio's latest named round is a Series A, in Feb 2024.

Where is Firefly Bio based?

Firefly Bio is based in the United States.

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