United States · Who invested in Prosetta?
Prosetta's investors include Takeda Pharmaceutical and Fred Alger Management.
20072009201120132015
$2.0MSeries A$2.0MSeries B$31MSeries DUnited States · Series D startup
Who invested in Prosetta
3 rounds we have observed, with the 2 investors named in them. 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
$35Mraised across 3 rounds since 2007, from 3 sources
$2.0MSeries A$2.0MSeries B$31MSeries D
- Latest round
- Series D, $31MDec 2015
- Step-upi
- 15.2×
- Investors
- 2
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series A, $2.0M May 2007
- Biggest round
- $31M Series D · Dec 2015
- Usual gap between rounds
- 5.2 years the median of 2
The rounds
- Dec 2015
- Jul 2012
- May 2007
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Quick answers about Prosetta
How much has Prosetta raised?
Prosetta has raised $35M across 3 rounds since 2007.
When did Prosetta last raise?
Prosetta's most recent round was a Series D of $31M in Dec 2015.
What was Prosetta's biggest round?
Its most recent round, $31M in Dec 2015, is also its largest on record.
Who backed Prosetta first?
Prosetta's first round on record, in Dec 2015, was backed by Takeda Pharmaceutical and Fred Alger Management.
What stage is Prosetta at?
Prosetta's latest named round is a Series D, in Dec 2015.
Where is Prosetta based?
Prosetta is based in the United States.
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