# MPM Capital's Biotech Investments: 32 Startups in Its Portfolio (2026)

> The 32 Biotech startups MPM Capital has backed, by stage: $4.0B raised between them. From the rounds we track; updated nightly.

Source: https://millionrounds.com/portfolio-maps/mpm-bioimpact-biotech-portfolio (Millionrounds; every figure on the page links to its filing or article)

## Series A

10

- [Rhythm Pharmaceuticals](https://millionrounds.com/company/rhythm-pharmaceuticals)
- [*CO* Cullinan Oncology](https://millionrounds.com/company/cullinan-oncology)
- [AstronauTx](https://millionrounds.com/company/astronautx)
- [*CT* CoDa Therapeutics](https://millionrounds.com/company/coda-therapeutics)
- [Oncorus](https://millionrounds.com/company/oncorus)
- [*2T* 27-8 Therapeutics](https://millionrounds.com/company/27-8-therapeutics)
- [*TT* Tripley Therapeutics](https://millionrounds.com/company/tripley-therapeutics)
- [*WT* Wereworld Therapeutics](https://millionrounds.com/company/wereworld-therapeutics)
- [*VP* Vascular Pharmaceuticals](https://millionrounds.com/company/vascular-pharmaceuticals)
- [Syrrx](https://millionrounds.com/company/syrrx)

## Stage not reported

8

- [Epizyme](https://millionrounds.com/company/epizyme)
- [EndoGastric Solutions](https://millionrounds.com/company/endogastric-solutions)
- [Celladon](https://millionrounds.com/company/celladon)
- [True North Therapeutics](https://millionrounds.com/company/true-north-therapeutics)
- [*CT* Cellerant Therapeutics](https://millionrounds.com/company/cellerant-therapeutics)
- [*NP* NeuroTherapeutics Pharma](https://millionrounds.com/company/neurotherapeutics-pharma)
- [*CS* CHF Solutions](https://millionrounds.com/company/chf-solutions)
- [*IT* IntraLuminal Therapeutics](https://millionrounds.com/company/intraluminal-therapeutics)

## Series C and later

8

- [23andMe](https://millionrounds.com/company/23andme)
- [*PS* Perlegen Sciences](https://millionrounds.com/company/perlegen-sciences)
- [Integrated Diagnostics](https://millionrounds.com/company/integrated-diagnostics)
- [Frontier Medicines](https://millionrounds.com/company/frontier-medicines)
- [Ceregene](https://millionrounds.com/company/ceregene)
- [*A* Amphivena](https://millionrounds.com/company/amphivena)
- [*IT* Iconic Therapeutics](https://millionrounds.com/company/iconic-therapeutics)
- [*O* Oxagen](https://millionrounds.com/company/oxagen)

## Series B

4

- [Semma Therapeutics](https://millionrounds.com/company/semma-therapeutics)
- [Cardiac Dimensions](https://millionrounds.com/company/cardiac-dimensions)
- [*HT* Harpoon Therapeutics](https://millionrounds.com/company/harpoon-therapeutics)
- [*A* Allozyne](https://millionrounds.com/company/allozyne)

## Growth

2

- [Tercica](https://millionrounds.com/company/tercica)
- [Clinical Ink](https://millionrounds.com/company/clinical-ink)

## Segment by segment

### Series A

10 startups · $950M raised

- [**Rhythm Pharmaceuticals**](https://millionrounds.com/company/rhythm-pharmaceuticals) Rhythm is a biopharmaceutical company focused on developing and commercializing peptide therapeutics United States $311M
- [*CO* **Cullinan Oncology**](https://millionrounds.com/company/cullinan-oncology) United States $150M
- [**AstronauTx**](https://millionrounds.com/company/astronautx) AstronauTx Ltd. United Kingdom $124M
- [*CT* **CoDa Therapeutics**](https://millionrounds.com/company/coda-therapeutics) United States $78M
- [**Oncorus**](https://millionrounds.com/company/oncorus) Oncorus is an immuno-oncology company developing oncolytic viruses to fight cancer. United States $77M
- [*2T* **27-8 Therapeutics**](https://millionrounds.com/company/27-8-therapeutics) United States $65M
- [*TT* **Tripley Therapeutics**](https://millionrounds.com/company/tripley-therapeutics) United States $59M
- [*WT* **Wereworld Therapeutics**](https://millionrounds.com/company/wereworld-therapeutics) United States $56M

### Stage not reported

8 startups · $1.1B raised

- [**Epizyme**](https://millionrounds.com/company/epizyme) Epizyme is a biopharmaceutical company focusing on treatments for blood cancer and tumors. United States $332M
- [**EndoGastric Solutions**](https://millionrounds.com/company/endogastric-solutions) EndoGastric Solutions is a medical device company based in Redmond, Washington. United States $293M
- [**Celladon**](https://millionrounds.com/company/celladon) Celladon is a biotechnology company developing molecular therapies for the treatment of heart failure. United States $172M
- [**True North Therapeutics**](https://millionrounds.com/company/true-north-therapeutics) True North Therapeutics is a pioneering biotechnology company selectively inhibiting the Complement pathway for diseases. United States $142M
- [*CT* **Cellerant Therapeutics**](https://millionrounds.com/company/cellerant-therapeutics) Cellerant Therapeutics is a clinical-stage company developing innovative cell- and antibody-based immunotherapies. United States $96M
- [*NP* **NeuroTherapeutics Pharma**](https://millionrounds.com/company/neurotherapeutics-pharma) NeuroTherapeutics Pharma is a biopharmaceutical company developing new therapies to treat pain, epilepsy, and other nervous system disorder. United States $58M
- [*CS* **CHF Solutions**](https://millionrounds.com/company/chf-solutions) CHF Solutions designs and manufactures a device to remove excess fluid from patients suffering from fluid overload. United States $23M
- [*IT* **IntraLuminal Therapeutics**](https://millionrounds.com/company/intraluminal-therapeutics) IntraLuminal Therapeutics provides products for interventional cardiologists and radiologists to recanalize totally occluded arteries. - $20M

### Series C and later

8 startups · $1.2B raised

- [**23andMe**](https://millionrounds.com/company/23andme) United States $729M
- [*PS* **Perlegen Sciences**](https://millionrounds.com/company/perlegen-sciences) Perlegen Sciences develops genetic variations providing physicians with information to improve the clinical process and treatment outcomes. United States $104M
- [**Integrated Diagnostics**](https://millionrounds.com/company/integrated-diagnostics) Integrated Diagnostics develops tools to help physicians diagnose complex diseases with a non-invasive blood test. United States $95M
- [**Frontier Medicines**](https://millionrounds.com/company/frontier-medicines) Frontier Medicines is a biopharmaceutical company that develops a chemoproteomics platform to accelerate the development of medicines. United States $87M
- [**Ceregene**](https://millionrounds.com/company/ceregene) Ceregene is a biotechnology company that treats neurodegenerative disorders using the delivery of nervous system growth factors. United States $72M
- [*A* **Amphivena**](https://millionrounds.com/company/amphivena) United States $62M
- [*IT* **Iconic Therapeutics**](https://millionrounds.com/company/iconic-therapeutics) United States $38M
- [*O* **Oxagen**](https://millionrounds.com/company/oxagen) Oxagen develops small molecule drugs to treat inflammatory and respiratory diseases. United Kingdom $27M

### Series B

4 startups · $489M raised

- [**Semma Therapeutics**](https://millionrounds.com/company/semma-therapeutics) Semma Therapeutics was founded to develop transformative therapies for Type 1 diabetes patients. United States $158M
- [**Cardiac Dimensions**](https://millionrounds.com/company/cardiac-dimensions) Cardiac Dimensions is a medical device company based in Kirkland, Washington, founded in 2001. United States $150M
- [*HT* **Harpoon Therapeutics**](https://millionrounds.com/company/harpoon-therapeutics) Harpoon Therapeutics is a clinical-stage immunotherapy company focused on the development of novel T-cell recruiting biologic therapies. United States $145M
- [*A* **Allozyne**](https://millionrounds.com/company/allozyne) Allozyne develops technologies that improve the efficacy, safety, dosing, and other characteristics of protein-based therapeutics. United States $37M

### Growth

2 startups · $173M raised

- [**Tercica**](https://millionrounds.com/company/tercica) Tercica, a biotechnology company, develops and commercializes therapeutics for the treatment of endocrine and metabolic diseases. United States $149M
- [**Clinical Ink**](https://millionrounds.com/company/clinical-ink) Clinical Ink develops electronic documents recording software for recording source data on mobile devices during clinical trials. United States $24M

**How this map is made.** Every startup here works in Biotech and has raised money in a round we track that names MPM Capital as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.

## More portfolio maps

[All portfolios](https://millionrounds.com/portfolio-maps)

[Co-investors **Who invests with MPM Capital** 39 co-investors](https://millionrounds.com/portfolio-maps/mpm-bioimpact-co-investors)[Sector portfolio **RA Capital Management's Biotech portfolio** 197 startups · $38B](https://millionrounds.com/portfolio-maps/ra-capital-management-biotech-portfolio)[Sector portfolio **OrbiMed's Biotech portfolio** 176 startups · $28B](https://millionrounds.com/portfolio-maps/orbimed-biotech-portfolio)[Sector portfolio **Pioneer Fund's AI portfolio** 171 startups · $2.8B](https://millionrounds.com/portfolio-maps/pioneer-fund-2-ai-portfolio)[Sector portfolio **Gaingels' AI portfolio** 146 startups · $14B](https://millionrounds.com/portfolio-maps/gaingels-ai-portfolio)[Sector portfolio **Cormorant Asset Management's Biotech portfolio** 95 startups · $21B](https://millionrounds.com/portfolio-maps/cormorant-asset-management-biotech-portfolio)

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