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Christoph Westphal

Director at Newleos Therapeutics.

DirectorPublic company
Updated Nov 9, 2026·Latest SEC filing Feb 24, 2025·Suggest an edit

About Christoph Westphal

Christoph Westphal is a director at Newleos Therapeutics.

Christoph Westphal reports to the SEC as a director, officer or major shareholder of 5 public companies, including TScan Therapeutics (TCRX), Decoy Therapeutics (DCOY) and Verastem (VSTM).

Christoph Westphal first appears on SEC filings in 2007.

Experience

This experience comes from SEC filings. The years are when the filings name Christoph Westphal in the role, so the role may have started earlier or lasted longer.

Newleos Therapeutics, Inc.
Director
2025 · Boston, MA
TScan Therapeutics, Inc.
Director and 10% owner
2021 · Public company (TCRX)
Decoy Therapeutics Inc.
President and CEO, director
2015 – 2018 · Public company (DCOY)
Verastem, Inc.
Executive Chairman
2012 – 2015 · Public company (VSTM)
Tempest Therapeutics, Inc.
Director and 10% owner
2012 – 2014 · Public company (TPST)
Sirtris Pharmaceuticals, Inc.
President and CEO, director
2007 – 2008 · Public company (SIRT)

Key Colleagues at Startups

The people Christoph Westphal works with at each company, as listed on that company's latest Form D.

Newleos Therapeutics, Inc. · Form D, Feb 24, 2025
DD
David Donabedian
President and CEO, director
RH
Robert Hadfield
Executive officer
MC
Ming Cheah
Director
JM
John McCabe
Executive officer

Sources

  1. SECNewleos Therapeutics, Inc. Form D, filed Feb 24, 2025
  2. SECForms 3, 4 and 5 filed by Christoph Westphal (SEC filer 1291961)