Fundraising Fox

PIPr Therapeutics

Durham, US · Founded 2016 · Delaware corporation · 1 known investors

Biotech

Founders & leadership

CT
Clay ThorpDirector
HM
Heather MadsenMs. Madsen is a director and the CEO of the issuer.
WW
William WieslerExecutive Officer, Director
HT
Holden ThorpDirector

Investors · 1

Hatteras Venture PartnersreportedResearch Triangle · $500K – $4Mvia Christy Shaffer · board

Reported raises · per SEC filings

Form D private placements
▶$1.5MraisedNov 2025 · 3 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Clay ThorpDirector
  • Holden ThorpDirector
  • Heather MadsenExecutive Officer, Director
Offering amount
$2.5M
Amount sold
$1.5M
First sale
Oct 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$18.9MraisedJun 2022 · 7 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Bridget Ann MartellExecutive Officer, Director
  • Holden ThorpDirector
  • Christy ShafferDirector
  • E. Jonathan SoderstromDirector
  • St. John Donnie McGrathDirector
Offering amount
$18.9M
Amount sold
$18.9M
First sale
Dec 2020
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$1.7MraisedMar 2020 · 4 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • James H. RosenExecutive Officer, Director
  • Holden ThorpDirector
  • Jonathan SoderstromDirector
  • Christy ShafferDirector
  • Moncef SlaouiDirector
  • Marian NakadaDirector
Offering amount
$2M
Amount sold
$1.7M
First sale
Feb 2020
Incorporated
Corporation, Delaware, 2016
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$5MraisedMar 2019 · 6 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Marian NakadaDirector
  • James H. RosenExecutive Officer, Director
  • Holden ThorpDirector
  • Christy ShafferDirector
  • Moncef SlaouiDirector
  • Jonathan SoderstromDirector
Offering amount
$5M
Amount sold
$5M
First sale
Mar 2019
Incorporated
Corporation, Delaware, 2016
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$3MraisedOct 2016 · 5 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • William WieslerExecutive Officer, Director
Offering amount
$5M
Amount sold
$3M
First sale
Sep 2016
Incorporated
Corporation, Delaware, 2016
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.