United States · Series A startup

Who invested in Addition Therapeutics

One round we have observed, with the one investor 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

Raised 11 months ago

Funding summaryUpdated 26 Oct 2026

$100Mraised across 1 round since 2025, from 1 source

Latest round
Series A, $100MDec 2025
Investors
1
See who backed them

The rounds

  1. Dec 2025
    Series A$100M

    Source recordedSEC filing: $28M sold, first sale Dec 2025

Founders and team

From Addition Therapeutics's own website: 2 on the team.

  • Matthew R. PattersonChairman
  • Peter BisgaardBoard Director

Everyone who backed them

SR OneCorporate VC1round

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

Quick answers about Addition Therapeutics

Who invested in Addition Therapeutics?

Addition Therapeutics's investors include SR One.

How much has Addition Therapeutics raised?

Addition Therapeutics has raised $100M across 1 round since 2025.

When did Addition Therapeutics last raise?

Addition Therapeutics's most recent round was a Series A of $100M in Dec 2025.

What was Addition Therapeutics's biggest round?

Its most recent round, $100M in Dec 2025, is also its largest on record.

Who backed Addition Therapeutics first?

Addition Therapeutics's first round on record, in Dec 2025, was backed by SR One.

What stage is Addition Therapeutics at?

Addition Therapeutics's latest named round is a Series A, in Dec 2025.

Where is Addition Therapeutics based?

Addition Therapeutics is based in the United States.

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