United States · 
Who invested in Aton Pharma?
Aton Pharma's investors include Wellcome Trust and Perseus-Soros Biopharmaceutical Fund.
United States · Growth startup
Who invested in Aton Pharma
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.
Funding summaryUpdated 26 Oct 2026
$14Mraised across 1 round since 2003, from 1 source
- Latest round
- Growth, $14MJan 2003
- Investors
- 2
The rounds
- Jan 2003
The exit
ExitBuyerPriceWhen
AcquiredValeant Pharmaceuticals International$318MMay 2010
From historical deal records. Wrong? Tell us.
Everyone who backed them
Perseus-Soros Biopharmaceutical FundVC firm1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Aton Pharma
How much has Aton Pharma raised?
Aton Pharma has raised $14M across 1 round since 2003.
When did Aton Pharma last raise?
Aton Pharma's most recent round was a Growth of $14M in Jan 2003.
What was Aton Pharma's biggest round?
Its most recent round, $14M in Jan 2003, is also its largest on record.
Who backed Aton Pharma first?
Aton Pharma's first round on record, in Jan 2003, was backed by Wellcome Trust and Perseus-Soros Biopharmaceutical Fund.
What stage is Aton Pharma at?
Aton Pharma's latest named round is a Growth, in Jan 2003.
Where is Aton Pharma based?
Aton Pharma is based in the United States.
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