United States · Series A startup

Who invested in Sideris Pharmaceuticals

2 rounds we have observed, with the 3 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.

Biotech

Funding summaryUpdated 26 Oct 2026

$33Mraised across 2 rounds since 2013, from 2 sources

$599KSeed$32MSeries A
Latest round
Series A, $32MOct 2013
Step-upi
53.4×
Investors
3
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2014
$599KSeed$32MSeries A
First round
Seed, $599K
Apr 2013
Biggest round
$32M
Series A · Oct 2013
Between rounds
6 months
from the last two

The rounds

  1. Oct 2013
    Series A$32M3 new

    Reported by boston.comSEC filing: $17M sold, first sale Oct 2013

  2. Apr 2013
    Seed$599K

    No investor was named in the report.

    Reported by sec.gov

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.

Everyone who backed them

MPM CapitalPrivate equity1round

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

Quick answers about Sideris Pharmaceuticals

Who invested in Sideris Pharmaceuticals?

Sideris Pharmaceuticals's investors include MPM Capital, Hatteras Venture Partners and Osage University Partners.

How much has Sideris Pharmaceuticals raised?

Sideris Pharmaceuticals has raised $33M across 2 rounds since 2013.

When did Sideris Pharmaceuticals last raise?

Sideris Pharmaceuticals's most recent round was a Series A of $32M in Oct 2013.

What was Sideris Pharmaceuticals's biggest round?

Its most recent round, $32M in Oct 2013, is also its largest on record.

Who backed Sideris Pharmaceuticals first?

Sideris Pharmaceuticals's first round on record, in Oct 2013, was backed by MPM Capital, Hatteras Venture Partners and Osage University Partners.

What stage is Sideris Pharmaceuticals at?

Sideris Pharmaceuticals's latest named round is a Series A, in Oct 2013.

Where is Sideris Pharmaceuticals based?

Sideris Pharmaceuticals is based in the United States.

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