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Kolltan Pharmaceuticals

New Haven, US · Founded 2007 · 1 known investors

Find your way into Kolltan Pharmaceuticals

Founders & leadership

Kolltan Pharmaceuticals was founded in 2007 by Joseph Schlessinger and Michael Schmertzler.

JSJoseph Schlessinger
Joseph SchlessingerCo-founder
MS
Michael SchmertzlerinCo-founder
SC
Stanley ChoyExecutive
YH
Yaron HadariExecutive
WB
W. Bradford MiddlekauffExecutive

Board

AB
Axel BolteBoard director
EJ
E. Jonathan SoderstromBoard director
AG
Arthur G. Altschul, Jr.Board director
KP
K. Peter HirthBoard director
TB
Thomas B. NeffBoard director

Investors · 1

Reported raises · per SEC filings

Form D private placements

$85M disclosed across 2 rounds · 2012–2014

$60MraisedMar 2014 · 34 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • E. Jonathan SoderstromDirector
  • Axel BolteDirector
  • Paul MedeirosDirector
  • K. Peter HirthDirector
  • Stanley ChoyExecutive Officer
  • Yaron HadariExecutive Officer
  • Theresa M. LaValleeExecutive Officer
  • Joseph SchlessingerDirector
  • Carolyn F. SidorExecutive Officer
  • Gerald McMahonExecutive Officer, Director
  • Thomas B. NeffDirector
  • Arthur G. Altschul, Jr.Director
  • Jane Pritchett HendersonExecutive Officer
Offering amount
$60M
Amount sold
$60M
First sale
Mar 2014
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$25MraisedMar 2012 · 1 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Stanley ChoyExecutive Officer
  • Axel BolteDirector
  • E. Jonathan SoderstromDirector
  • Yaron HadariExecutive Officer
  • Joseph SchlessingerDirector
  • Arthur G. Altschul, Jr.Director
  • K. Peter HirthDirector
  • Thomas B. NeffDirector
  • Michael SchmertzlerExecutive Officer, Director
  • W. Bradford MiddlekauffExecutive Officer
Offering amount
$25M
Amount sold
$25M
First sale
Mar 2012
Incorporated
Corporation, Delaware, 2007
Federal exemptions
06
Full filing on SEC EDGAR ↗

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

In the news

Frequently asked questions

Who founded Kolltan Pharmaceuticals?
Kolltan Pharmaceuticals was founded by Joseph Schlessinger, Michael Schmertzler in 2007.
Who are Kolltan Pharmaceuticals's investors?
Kolltan Pharmaceuticals's investors include OUP (Osage University Partners).
How much funding has Kolltan Pharmaceuticals raised?
Kolltan Pharmaceuticals has disclosed $85M raised across 2 rounds.
Where is Kolltan Pharmaceuticals headquartered?
Kolltan Pharmaceuticals is headquartered in New Haven, US.