# Osage University Partners' Biotech Investments: 29 Startups in Its Portfolio (2026) > The 29 Biotech startups Osage University Partners has backed, by stage: $2.8B raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/osage-university-partners-biotech-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Series C and later 13 - [ArsenalBio](https://millionrounds.com/company/arsenalbio) - [Spero Therapeutics](https://millionrounds.com/company/spero-therapeutics) - [Atsena Therapeutics](https://millionrounds.com/company/atsena-therapeutics) - [Kolltan Pharmaceuticals](https://millionrounds.com/company/kolltan-pharmaceuticals) - [PMV Pharmaceuticals](https://millionrounds.com/company/pmv-pharmaceuticals) - [Sera Prognostics](https://millionrounds.com/company/sera-prognostics) - [Effector Therapeutics](https://millionrounds.com/company/effector-therapeutics) - [Synthorx](https://millionrounds.com/company/synthorx) - [Faraday Pharmaceuticals](https://millionrounds.com/company/faraday-pharmaceuticals) - [Antiva Biosciences](https://millionrounds.com/company/antiva-biosciences) - [*PP* PMV Pharma](https://millionrounds.com/company/pmv-pharma) - [*A* Antiva](https://millionrounds.com/company/antiva) - [Cleave Therapeutics](https://millionrounds.com/company/cleave-therapeutics) ## Stage not reported 8 - [Vanqua Bio](https://millionrounds.com/company/vanqua-bio) - [*P* Precision](https://millionrounds.com/company/precision) - [*ID* Immune Design](https://millionrounds.com/company/immune-design) - [Ribon Therapeutics](https://millionrounds.com/company/ribon-therapeutics) - [*SP* Sasuma Pharmaceuticals](https://millionrounds.com/company/sasuma-pharmaceuticals) - [Virdante Pharmaceuticals](https://millionrounds.com/company/virdante-pharmaceuticals) - [Artizan Biosciences](https://millionrounds.com/company/artizan-biosciences) - [LunaPBC](https://millionrounds.com/company/lunapbc) ## Series B 5 - [Arrakis Therapeutics](https://millionrounds.com/company/arrakis-therapeutics) - [Nocion Therapeutics](https://millionrounds.com/company/nocion-therapeutics) - [Aptinyx](https://millionrounds.com/company/aptinyx) - [*LB* Landos Biopharma](https://millionrounds.com/company/landos-biopharma) - [*P* Pionyr](https://millionrounds.com/company/pionyr) ## Series A 3 - [Vor Biopharma](https://millionrounds.com/company/vor-biopharma) - [Escient](https://millionrounds.com/company/escient) - [*M* Medisix](https://millionrounds.com/company/medisix) ## Segment by segment ### Series C and later 13 startups · $1.6B raised - [**ArsenalBio**](https://millionrounds.com/company/arsenalbio) ArsenalBio is a programmable cell therapy company that offers advanced CAR T-cell therapies for solid tumors. United States $410M - [**Spero Therapeutics**](https://millionrounds.com/company/spero-therapeutics) Spero Therapeutics develops therapeutics for treatment of gram-negative infections. United States $199M - [**Atsena Therapeutics**](https://millionrounds.com/company/atsena-therapeutics) Atsena Therapeutics is a clinical-stage gene therapy company based in Durham, North Carolina, focused on developing treatments for United States $150M - [**Kolltan Pharmaceuticals**](https://millionrounds.com/company/kolltan-pharmaceuticals) Kolltan Pharmaceuticals develops new-generation monoclonal antibody oncology therapeutics. United States $146M - [**PMV Pharmaceuticals**](https://millionrounds.com/company/pmv-pharmaceuticals) PMV Pharma is developing first-in-class p53 regulators for the treatment of cancer. United States $144M - [**Sera Prognostics**](https://millionrounds.com/company/sera-prognostics) Sera Prognostics develops blood tests that are predictive of preterm birth, preeclampsia, and other pregnancy complications. United States $107M - [**Effector Therapeutics**](https://millionrounds.com/company/effector-therapeutics) Effector Therapeutics is an early-stage company focused on the discovery and development of small molecule cancer therapeutics. United States $99M - [**Synthorx**](https://millionrounds.com/company/synthorx) Synthorx is a biotechnology company using synthetic biology to synthesize solutions. United States $79M ### Stage not reported 8 startups · $574M raised - [**Vanqua Bio**](https://millionrounds.com/company/vanqua-bio) Vanqua Bio is a biopharmaceutical company based in Chicago, founded in 2019. United States $130M - [*P* **Precision**](https://millionrounds.com/company/precision) United States $111M - [*ID* **Immune Design**](https://millionrounds.com/company/immune-design) Immune Design develops vaccines and therapeutics for the prevention and treatment of infectious diseases. United States $99M - [**Ribon Therapeutics**](https://millionrounds.com/company/ribon-therapeutics) Ribon Therapeutics is a biotechnology company focused on the development of therapeutics treatments targeting stress support pathways. United States $90M - [*SP* **Sasuma Pharmaceuticals**](https://millionrounds.com/company/sasuma-pharmaceuticals) United States $62M - [**Virdante Pharmaceuticals**](https://millionrounds.com/company/virdante-pharmaceuticals) Virdante Pharmaceuticals is a biopharmaceutical company developing and commercializing drugs for autoimmune and inflammatory diseases. United States $60M - [**Artizan Biosciences**](https://millionrounds.com/company/artizan-biosciences) Artizan Biosciences focuses on drug discovery and development for diseases involving the human intestinal microbiota. United States $14M - [**LunaPBC**](https://millionrounds.com/company/lunapbc) LunaPBC is a healthcare company that transforms health data into health breakthroughs. United States $8.4M ### Series B 5 startups · $433M raised - [**Arrakis Therapeutics**](https://millionrounds.com/company/arrakis-therapeutics) Arrakis Therapeutics is a biopharmaceutical developing drugs for neurological disorders and other diseases. United States $113M - [**Nocion Therapeutics**](https://millionrounds.com/company/nocion-therapeutics) Nocion Therapeutics is a developer of novel pharmaceuticals intended to treat the conditions arising from neurogenic inflammation. United States $112M - [**Aptinyx**](https://millionrounds.com/company/aptinyx) Aptinyx Inc. United States $76M - [*LB* **Landos Biopharma**](https://millionrounds.com/company/landos-biopharma) Landos Biopharma is a developer of an oral first-in-class therapeutics designed to target autoimmune diseases. United States $70M - [*P* **Pionyr**](https://millionrounds.com/company/pionyr) United States $62M ### Series A 3 startups · $177M raised - [**Vor Biopharma**](https://millionrounds.com/company/vor-biopharma) Vor Biopharma is an immuno-oncology company that develops therapies for treating cancer. United States $117M - [**Escient**](https://millionrounds.com/company/escient) Escient specializes in providing business strategies, management consulting, and advisory services for various organizations. United States $40M - [*M* **Medisix**](https://millionrounds.com/company/medisix) Singapore $20M **How this map is made.** Every startup here works in Biotech and has raised money in a round we track that names Osage University Partners 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 Osage University Partners** 48 co-investors](https://millionrounds.com/portfolio-maps/osage-university-partners-co-investors)[Portfolio map **Osage University Partners portfolio map** 41 startups · $3.3B](https://millionrounds.com/portfolio-maps/osage-university-partners-portfolio-map)[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) ## Raising from investors like Osage University Partners? 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