Fundraising FoxToposbio
San Francisco, US · Founded 2024 · 2 known investors
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Topos Bio develops an AI-native drug discovery platform focused on intrinsically disordered proteins, which are dynamic proteins associated with diseases such as Alzheimer's and prostate cancer. Its approach models protein ensembles instead of single static structures to target proteins previously considered undruggable.
Founders & leadership
Toposbio was founded in 2024 by Ryan Zarcone and Amir Khosrowshahi.
Board
EC
Investors · 2
Reported raises · per SEC filings
Form D private placements$9M disclosed across 1 round · 2024
▶$9MraisedJan 2025 · 2 investors · OtherRule 506(b)
▶$9MraisedJan 2025 · 2 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Amir KhosrowshahiExecutive Officer, Director, Promoter
- Ellen ChisaDirector
- Ryan ZarconeExecutive Officer, Director, Promoter
- Offering amount
- $10.5M
- Amount sold
- $9M
- First sale
- Dec 2024
- Incorporated
- Corporation, Delaware, 2024
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Frequently asked questions
- What does Toposbio do?
- Topos Bio develops an AI-native drug discovery platform focused on intrinsically disordered proteins, which are dynamic proteins associated with diseases such as Alzheimer's and prostate cancer. Its approach models protein ensembles instead of single static structures to target proteins previously considered undruggable.
- Who founded Toposbio?
- Toposbio was founded by Ryan Zarcone, Amir Khosrowshahi in 2024.
- Who are Toposbio's investors?
- Toposbio's investors include boldstart ventures, Threshold Ventures.
- How much funding has Toposbio raised?
- Toposbio has disclosed $9M raised across 1 round.
- Where is Toposbio headquartered?
- Toposbio is headquartered in San Francisco, US.