United States · Growth startup

Who invested in Cempra

5 rounds we have observed, with the 7 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.

Pharma

Funding summaryUpdated 26 Oct 2026

$108Mraised across 5 rounds since 2006, from 5 sources

$22MSeries A$10MSeries B$46MSeries C$5.0MDebt$25MGrowth
Latest round
Growth, $25MOct 2012
Biggest round
$46MSeries C · Jun 2009
Step-upi
5×
Investors
7
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.

2006200720082009201020112012
$22MSeries A$10MSeries B$46MSeries C$5.0MDebt$25MGrowth
First round
Series A, $22M
Apr 2006
Biggest round
$46M
Series C · Jun 2009
Usual gap between rounds
23 months
the median of 4

The rounds

  1. Oct 2012
    Growth$25M

    No investor was named in the report.

    Reported by sec.govSEC filing: $25M sold, first sale Oct 2012

  2. Aug 2011
    Debt$5.0M

    No investor was named in the report.

    Reported by sec.govSEC filing: $5.0M sold, first sale Aug 2011

  3. Jun 2009
  4. Jul 2007
  5. Apr 2006
    Series A$22M

    No investor was named in the report.

    Reported by bioworld.com

Founders and team

From the SEC filings it signed: 2 on the team.

  • Mark HahnExecutive Officeri
  • Prabhavathi FernandesExecutive Officer, Directori

On the board, as filediDavid Sherill GillDov GoldsteinGarheng KongJohn JohnsonP. Sherill NeffRichard Kent

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

Intersouth PartnersVC firm2rounds
Aisling CapitalPrivate equity2rounds
Quaker PartnersVC firm1round
Devon Park BioVenturesGrowth equity1round
Optimer PharmaceuticalsGrowth equity1round

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

Quick answers about Cempra

Who invested in Cempra?

Cempra's investors include Intersouth Partners, Aisling Capital, I. Wistar Morris III, Quaker Partners and Ontario Teachers' Pension Plan, and 2 more on record.

How much has Cempra raised?

Cempra has raised $108M across 5 rounds since 2006.

When did Cempra last raise?

Cempra's most recent round was a Growth of $25M in Oct 2012.

What was Cempra's biggest round?

Cempra's largest round on record is $46M (Series C), in Jun 2009.

Who backed Cempra first?

Cempra's first round on record, in Jul 2007, was backed by Intersouth Partners, Aisling Capital and I. Wistar Morris III and 1 others.

What stage is Cempra at?

Cempra's latest named round is a Growth, in Oct 2012.

Where is Cempra based?

Cempra is based in the United States.

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