Fundraising Fox

TwoStep Therapeutics

San Carlos, US · Founded 2023 · Delaware corporation · 4 known investors

twosteptx.com

TwoStep Therapeutics is a Stanford spinout developing targeted cancer therapies, including peptide-based drug conjugates and radioligand programs built on a tumor-targeting peptide platform. The company is advancing a preclinical pipeline toward a first clinical trial planned for the second half of 2026.

BiotechHealthtechin /twostep-therapeutics

Founders & leadership

MP
Matias Porras PaniaguaDirector
CM
Caitlyn MillerCEO & Co-Founder
OA
Omri Amirav-DroryDirector
JP
John PrufetaDirector
JC
Jennifer CochranCo-Founder
CB
Carolyn BertozziCo-Founder
RL
Ronald LevyCo-Founder

Investors · 4

Reported raises · per SEC filings

Form D private placements
$21.1MraisedJan 2026 · 8 investors · Other
Rule 506(b)
Officers, directors & promoters on the filing
  • Matias Porras PaniaguaDirector
  • Caitlyn MillerExecutive Officer, Director, Promoter
  • Omri Amirav-DroryDirector
  • John PrufetaDirector
Offering amount
$62.2M
Amount sold
$21.1M
First sale
Jan 2026
Incorporated
Corporation, Delaware, 2023
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$6.5MraisedMar 2024 · 6 investors · Other
Rule 506(b)
Officers, directors & promoters on the filing
  • Caitlyn MillerExecutive Officer, Director, Promoter
  • Omri Amirav-DroryDirector
Offering amount
$6.5M
Amount sold
$6.5M
First sale
Mar 2024
Incorporated
Corporation, Delaware, 2023
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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