About Syntis Bio
Syntis Bio is a private company based in Boston, Massachusetts, incorporated in 2022 in Delaware. It has reported $46,672,163 raised in three offerings on Form D since August 2022. Its chief executive is Rahul Dhanda.
Funding Rounds (SEC Form D)
| First sale | Filed with SEC | Amount sold | Investors | Avg. check | Terms | Filing |
|---|---|---|---|---|---|---|
| Jun 17, 2025 | Jul 2, 2025 | $24,983,429of $26.4M target | 12 | $2.0M | EquityRule 506(b) | Form D ↗ |
| Dec 30, 2024 | Jan 27, 2025 | $6,316,555of $9.0M target | 9 | $701K | Equity, Options, Securities on exercise, Simple agreement for future equityRule 506(b) | Form D ↗ |
| Aug 3, 2022 | Aug 17, 2022amended Jan 17, 2023 | $15,372,179fully sold | 15 | $1.0M | EquityRule 506(b) | Form D/A ↗1 earlier filing |
| Total, three offerings | $46,672,163 | |||||
First sale is the date the first investor in the offering committed to invest. Companies must file Form D within 15 days of that date, so filing dates run later.
Leadership Team
Executive officers and directors listed on Syntis Bio's Form D filed Jul 2, 2025.
CZ
Chenny Zhang
Director
MM
Martin Madaus
Director
CT
Carlo Giovanni Traverso
Director

Robert Langer
Director
Also a director at SunBird Bio and Teal Bio and a co-founder & scientific advisor, director at SUTOL Bio.
TG
Teymour Boutros-Ghali
Director
TG
Teymour Boutros-Ghali
Director
RD
Rahul Dhanda
Chief Executive Officer and director
MN
Michael Nannizzi
Director