inSoma Bio
YC S20Durham, US · Founded 2018 · Delaware corporation · 4 employees · 3 known investors
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inSoma Bio develops biomaterial products for reconstruction plastic surgery, enabling surgeons to use patients' own tissue instead of synthetic implants and fillers for breast and facial reconstruction procedures.
Founders & leadership· Y Combinator alumni (S20)
inSoma Bio was founded in 2018 by Stefan Roberts and Ashutosh Chilkoti.


Board
Investors · 3
Reported raises · per SEC filings
Form D private placements$6.9M disclosed across 4 rounds · 2020–2025
▶$2.7MraisedJan 2026 · 15 investors · BiotechnologyRule 506(b)
- Ashutosh ChilkotiExecutive Officer, Director
- Juliana BlumDirector
- Stefan RobertsExecutive Officer, Director
- Heather BrennanDirector
- June S. AlmenoffDirector
- Offering amount
- $4M
- Amount sold
- $2.7M
- First sale
- Sep 2025
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$2.7MraisedMay 2024 · 16 investors · BiotechnologyRule 506(b)
- June S. AlmenoffDirector
- Stefan RobertsExecutive Officer, Director
- Juliana BlumDirector
- Ashutosh ChilkotiExecutive Officer, Director
- Heather BrennanDirector
- Offering amount
- $3M
- Amount sold
- $2.7M
- First sale
- Apr 2023
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$1.3MraisedDec 2020 · 31 investors · BiotechnologyRule 506(b)
- Ashutosh ChilkotiExecutive Officer, Director
- Stefan RobertsExecutive Officer, Director
- Offering amount
- $1.5M
- Amount sold
- $1.3M
- First sale
- Aug 2020
- Incorporated
- Corporation, Delaware, 2018
- Federal exemptions
- 06b
▶$202KraisedJul 2020 · 7 investors · BiotechnologyRule 506(b)
- Stefan E. RobertsExecutive Officer, Director
- Ashutosh ChilkotiExecutive Officer, Director
- Offering amount
- $202K
- Amount sold
- $202K
- First sale
- Jun 2020
- Incorporated
- Corporation, Delaware, 2018
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 3
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In the news
Frequently asked questions
- What does inSoma Bio do?
- inSoma Bio develops biomaterial products for reconstruction plastic surgery, enabling surgeons to use patients' own tissue instead of synthetic implants and fillers for breast and facial reconstruction procedures.
- Who founded inSoma Bio?
- inSoma Bio was founded by Stefan Roberts, Ashutosh Chilkoti in 2018.
- Who are inSoma Bio's investors?
- inSoma Bio's investors include Duke Capital Partners, FemHealth Ventures, Y Combinator.
- How much funding has inSoma Bio raised?
- inSoma Bio has disclosed $6.9M raised across 4 rounds.
- Where is inSoma Bio headquartered?
- inSoma Bio is headquartered in Durham, US.






