# Third Rock Ventures' Biotech Investments: 30 Startups in Its Portfolio (2026) > The 30 Biotech startups Third Rock Ventures has backed, by stage: $6.7B raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/third-rock-ventures-biotech-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Series B 10 - [Global Blood Therapeutics](https://millionrounds.com/company/global-blood-therapeutics) - [Editas Medicine](https://millionrounds.com/company/editas-medicine) - [Fulcrum Therapeutics](https://millionrounds.com/company/fulcrum-therapeutics) - [Voyager Therapeutics](https://millionrounds.com/company/voyager-therapeutics) - [Neon Therapeutics](https://millionrounds.com/company/neon-therapeutics) - [*M* MyoKardia](https://millionrounds.com/company/myokardia) - [*P* PanOptica](https://millionrounds.com/company/panoptica) - [Cedilla Therapeutics](https://millionrounds.com/company/cedilla-therapeutics) - [*MT* Magenta Therpeutics](https://millionrounds.com/company/magenta-therpeutics) - [Allena Pharmaceuticals](https://millionrounds.com/company/allena-pharmaceuticals) ## Series A 7 - [Tango Therapeutics](https://millionrounds.com/company/tango-therapeutics) - [Rhythm Pharmaceuticals](https://millionrounds.com/company/rhythm-pharmaceuticals) - [*A* Ambys](https://millionrounds.com/company/ambys) - [*RM* Rheos Medicies](https://millionrounds.com/company/rheos-medicies) - [*C* Casma](https://millionrounds.com/company/casma) - [Goldfinch Bio](https://millionrounds.com/company/goldfinch-bio) - [Ember Therapeutics](https://millionrounds.com/company/ember-therapeutics) ## Series C and later 5 - [Blueprint Medicines](https://millionrounds.com/company/blueprint-medicines) - [Relay Therapeutics](https://millionrounds.com/company/relay-therapeutics) - [Decibel Therapeutics](https://millionrounds.com/company/decibel-therapeutics) - [Magenta Therapeutics](https://millionrounds.com/company/magenta-therapeutics) - [*SS* Seventh Sense Biosystems](https://millionrounds.com/company/seventh-sense-biosystems) ## Stage not reported 4 - [bluebird bio](https://millionrounds.com/company/bluebird-bio) - [*I* Igenica](https://millionrounds.com/company/igenica) - [Alcresta](https://millionrounds.com/company/alcresta) - [*PF* Public food doctor](https://millionrounds.com/company/public-food-doctor) ## Pre-seed and seed 2 - [*T* Thrive](https://millionrounds.com/company/thrive) - [*R* Rhythm](https://millionrounds.com/company/rhythm) ## Growth 2 - [*WD* Warp Drive Bio](https://millionrounds.com/company/warp-drive-bio) - [TARIS Biomedical](https://millionrounds.com/company/taris-biomedical) ## Segment by segment ### Series B 10 startups · $1.8B raised - [**Global Blood Therapeutics**](https://millionrounds.com/company/global-blood-therapeutics) GBT is a clinical-stage biopharmaceutical company developing a therapy for sickle cell disease. United States $389M - [**Editas Medicine**](https://millionrounds.com/company/editas-medicine) Editas Medicine is a clinical-stage genome editing company that develops genomic medicines for serious diseases. United States $335M - [**Fulcrum Therapeutics**](https://millionrounds.com/company/fulcrum-therapeutics) Fulcrum Therapeutics is a biotechnology company that focuses on identifying and treating rare genetic diseases at their root cause. United States $310M - [**Voyager Therapeutics**](https://millionrounds.com/company/voyager-therapeutics) Voyager Therapeutics is a biotechnology company specializing in gene therapy and neurology. United States $205M - [**Neon Therapeutics**](https://millionrounds.com/company/neon-therapeutics) NEON Therapeutics is focused on unlocking the full potential of the immune system to recognize and attack cancer. United States $161M - [*M* **MyoKardia**](https://millionrounds.com/company/myokardia) MyoKardia is a clinical-stage biopharmaceutical company that develops targeted therapies for the treatment of rare cardiovascular diseases. United States $98M - [*P* **PanOptica**](https://millionrounds.com/company/panoptica) United States $86M - [**Cedilla Therapeutics**](https://millionrounds.com/company/cedilla-therapeutics) Cedilla Therapeutics is a biotechnology company that develops targeted small molecules for the treatment of cancer and other diseases. United States $81M ### Series A 7 startups · $1.5B raised - [**Tango Therapeutics**](https://millionrounds.com/company/tango-therapeutics) Tango Therapeutics is a biotechnology company that is developing next generation cancer therapies. United States $852M - [**Rhythm Pharmaceuticals**](https://millionrounds.com/company/rhythm-pharmaceuticals) Rhythm is a biopharmaceutical company focused on developing and commercializing peptide therapeutics United States $311M - [*A* **Ambys**](https://millionrounds.com/company/ambys) United States $140M - [*RM* **Rheos Medicies**](https://millionrounds.com/company/rheos-medicies) United States $60M - [*C* **Casma**](https://millionrounds.com/company/casma) United States $59M - [**Goldfinch Bio**](https://millionrounds.com/company/goldfinch-bio) Goldfinch Bio was a clinical-stage biotechnology company based in Cambridge, Massachusetts, founded in 2016. United States $55M - [**Ember Therapeutics**](https://millionrounds.com/company/ember-therapeutics) Ember Therapeutics develops the power of brown fat biology and insulin sensitization to develop treatments for metabolic diseases. United States $34M ### Series C and later 5 startups · $2.8B raised - [**Blueprint Medicines**](https://millionrounds.com/company/blueprint-medicines) Blueprint Medicines is a global, fully integrated biopharmaceutical company that invents life-changing medicines. United States $1.4B - [**Relay Therapeutics**](https://millionrounds.com/company/relay-therapeutics) Relay therapeutics is a developer of an allosteric drug-discovery platform intended to apply computational techniques to protein motion. United States $932M - [**Decibel Therapeutics**](https://millionrounds.com/company/decibel-therapeutics) Decibel Therapeutics is a hearing company focused on discovering and developing new medicines to protect, repair, and restore hearing. United States $189M - [**Magenta Therapeutics**](https://millionrounds.com/company/magenta-therapeutics) Magenta Therapeutics is a new biotechnology company developing therapeutics that unlock the power of stem cell biology. United States $187M - [*SS* **Seventh Sense Biosystems**](https://millionrounds.com/company/seventh-sense-biosystems) United States $52M ### Stage not reported 4 startups · $283M raised - [**bluebird bio**](https://millionrounds.com/company/bluebird-bio) bluebird bio is pursuing curative gene therapies to give patients and their families more bluebird days. United States $151M - [*I* **Igenica**](https://millionrounds.com/company/igenica) Igenica engages in discovery and development of antibody-based therapeutics for the treatment of cancer. United States $88M - [**Alcresta**](https://millionrounds.com/company/alcresta) Alcresta develops enzyme-based nutritional products for infants and adults with acute and chronic diseases. United States $30M - [*PF* **Public food doctor**](https://millionrounds.com/company/public-food-doctor) China $15M ### Pre-seed and seed 2 startups · $153M raised - [*T* **Thrive**](https://millionrounds.com/company/thrive) United States $111M - [*R* **Rhythm**](https://millionrounds.com/company/rhythm) United States $42M ### Growth 2 startups · $209M raised - [*WD* **Warp Drive Bio**](https://millionrounds.com/company/warp-drive-bio) Warp Drive Bio develops genomic search engine and customized search queries that reveal hidden natural products based on genomic signature. Brazil $125M - [**TARIS Biomedical**](https://millionrounds.com/company/taris-biomedical) TARIS Biomedical is a pharmaceutical company developing therapies for genitourinary system issues. United States $84M **How this map is made.** Every startup here works in Biotech and has raised money in a round we track that names Third Rock Ventures 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 Third Rock Ventures** 33 co-investors](https://millionrounds.com/portfolio-maps/third-rock-ventures-co-investors)[Sector portfolio **Techstars' AI portfolio** 336 startups · $4.9B](https://millionrounds.com/portfolio-maps/techstars-ai-portfolio)[Sector portfolio **Alumni Ventures' AI portfolio** 302 startups · $36B](https://millionrounds.com/portfolio-maps/us-strategic-tech-fund-an-alumni-ventures-fund-ai-portfolio)[Sector portfolio **Andreessen Horowitz's AI portfolio** 259 startups · $426B](https://millionrounds.com/portfolio-maps/andreessen-horowitz-ai-portfolio)[Sector portfolio **General Catalyst's AI portfolio** 226 startups · $179B](https://millionrounds.com/portfolio-maps/general-catalyst-ai-portfolio)[Sector portfolio **Sequoia Capital's AI portfolio** 209 startups · $543B](https://millionrounds.com/portfolio-maps/sequoia-capital-ai-portfolio) ## Raising from investors like Third Rock Ventures? 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