MB
MPM BioImpact
MPM BioImpact is a seed to Series B stage investment firm. It has made 7 investments. They made 1 investment in the last 12 months. Their most common stage is series-b (50% of deals). Average disclosed round size is $77.3M (across 7 rounds with reported amounts).
Portfolio
7
Fund Size
—
Top Stage
Series B
Last 12 Mo
1
Team
AG
Ansbert Gadicke
Managing Partner
CB
Christiana Bardon
Managing Partner
GS
Greg Sieczkiewicz
Managing Partner
TF
Todd Foley
Managing Director
DB
Diana Brainard
Executive Partner
ES
Elizabeth Stoner
Entrepreneur Partner
KL
Kristen Laguerre
Executive Partner
RR
Rami Rahal
Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
8 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| CCrossbow | Series B | $77M | Jan 2026 |
| PProtego Biopharma | Series B | $130M | Dec 2025 |
| PProtego Biopharma | Series B | $130M | Jan 2025 |
 Firefly Bio | Series A | $94M | Jan 2024 |
| DDeka Biosciences | Seed | $20M | Jan 2023 |
| KK2 Therapeutics | Seed | $50M | — |
 āshibio | Seed | $40M | — |
 Nextpoint | Series B | — | — |
Top Co-Investors
YK Bioventures3 shared
Omega Funds2 shared
Forbion2 shared
Novartis Venture Fund2 shared
Lightspeed Venture Partners2 shared
Digitalis Ventures2 shared
Leaps by Bayer2 shared
Groundswell Ventures1 shared
Viva BioInnovator1 shared
Alexandria Venture Investments1 shared
Decheng Capital1 shared
Versant Ventures1 shared
Eli Lilly and Company1 shared
Polaris Partners1 shared
Pfizer Ventures1 shared
Agent Capital1 shared
Sanofi Ventures1 shared
Catalio Capital Management1 shared
Sixty Degree Capital1 shared
Arkin Bio Ventures1 shared
Last updated: 19 September 2026