United States · Funded startup

Who invested in ACT Biotech

5 rounds we have observed, with the one investor 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 15 Nov 2026

$26Mraised across 5 rounds since 2008, from 5 sources

$6.6MSeries A$6.2MSeries A$12MSeries A
Latest round
Debt, $1.0MMay 2010
Biggest round
$12MSeries A · Mar 2009
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Investors
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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.

20092010
$6.6MSeries A$6.2MSeries A$12MSeries A$500KVenture$1.0MDebt
First round
Series A, $6.6M
May 2008
Biggest round
$12M
Series A · Mar 2009
Usual gap between rounds
7 months
the median of 4

The rounds

  1. May 2010
    Debt$1.0M

    No investor was named in the report.

    Reported by sec.govSEC filing: $1.0M sold, first sale Apr 2010

  2. Oct 2009
    Venture$500K

    No investor was named in the report.

    Reported by sec.govSEC filing: $500K sold, first sale Sept 2009

  3. Mar 2009
    Series A$12M

    No investor was named in the report.

    Reported by sec.gov

  4. Sept 2008
    Series A$6.2M

    No investor was named in the report.

    Reported by sec.gov

  5. May 2008
    Series A$6.6M1 new

    Reported by sec.gov

Funding filed with regulators

ACT Biotech filed 3 raises, $2.5M in all. Filings say how much was sold and to how many investors; they never name the investors.

  1. Jun 2010$1.0M1 investordebt, options, securities on exerciseof $4.0M offeredSEC Form D
  2. Apr 2010$1.0M1 investordebt, optionsof $2.0M offeredSEC Form D
  3. Sept 2009$500K1 investorequitySEC Form D

Founders and team

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

  • Ali FattaeyExecutive Officeri
  • John MahoneyExecutive Officeri
  • Wolf-Dieter BusseExecutive Officer, Directori

On the board, as filediGeorg NebgenJohn CostantinoNils C. Behnke

Everyone who backed them

NGN CapitalVC firm1round

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

Quick answers about ACT Biotech

Who invested in ACT Biotech?

ACT Biotech's investors include NGN Capital.

How much has ACT Biotech raised?

ACT Biotech has raised $26M across 5 rounds since 2008.

When did ACT Biotech last raise?

ACT Biotech's most recent round was a Debt of $1.0M in May 2010.

What was ACT Biotech's biggest round?

ACT Biotech's largest round on record is $12M (Series A), in Mar 2009.

Who backed ACT Biotech first?

ACT Biotech's first round on record, in May 2008, was backed by NGN Capital.

What stage is ACT Biotech at?

ACT Biotech's latest named round is a Debt, in May 2010.

Where is ACT Biotech based?

ACT Biotech is based in the United States.

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