United States · 
Who invested in Phrixus Pharmaceuticals?
Phrixus Pharmaceuticals's investors include Ann Arbor SPARK.
200820092010201120122013
?Venture$100KDebt
United States · Funded startup
Who invested in Phrixus Pharmaceuticals
2 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.
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Funding summaryUpdated 15 Nov 2026
$100Kraised across 2 rounds since 2007, from 2 sources
- Latest round
- Debt, $100KOct 2013
- Investors
- 1
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Venture Jul 2007
- Biggest round
- $100K Debt · Oct 2013
- Between rounds
- 6.3 years from the last two
The rounds
- Oct 2013Debt$100K
No investor was named in the report.
Reported by sec.govSEC filing: $100K sold, first sale Sept 2013
- Jul 2007
Funding filed with regulators
Phrixus Pharmaceuticals filed one raise, $100K in all. Filings say how much was sold and to how many investors; they never name the investors.
- Sept 2013$100KSEC Form D
Founders and team
From the SEC filings it signed: 1 on the team.
- Thomas A ColletExecutive Officer, Directori
On the board, as filediBruce A MarkhamGerald A BrennanLeslie A Browne
Everyone who backed them
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Quick answers about Phrixus Pharmaceuticals
How much has Phrixus Pharmaceuticals raised?
Phrixus Pharmaceuticals has raised $100K across 2 rounds since 2007. One round did not disclose an amount, so the total is a floor.
When did Phrixus Pharmaceuticals last raise?
Phrixus Pharmaceuticals's most recent round was a Debt of $100K in Oct 2013.
What was Phrixus Pharmaceuticals's biggest round?
Its most recent round, $100K in Oct 2013, is also its largest on record.
Who backed Phrixus Pharmaceuticals first?
Phrixus Pharmaceuticals's first round on record, in Jul 2007, was backed by Ann Arbor SPARK.
What stage is Phrixus Pharmaceuticals at?
Phrixus Pharmaceuticals's latest named round is a Debt, in Oct 2013.
Where is Phrixus Pharmaceuticals based?
Phrixus Pharmaceuticals is based in the United States.
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