# RTW Investments LLC's Pharma Investments: 13 Startups in Its Portfolio (2026)

> The 13 Pharma startups RTW Investments LLC has backed, by stage: $3.2B raised between them. From the rounds we track; updated nightly.

Source: https://millionrounds.com/portfolio-maps/rtw-investments-lp-pharma-portfolio (Millionrounds; every figure on the page links to its filing or article)

## Stage not reported

10

- [Mineralys Therapeutics](https://millionrounds.com/company/mineralys-therapeutics)
- [Dianthus Therapeutics](https://millionrounds.com/company/dianthus-therapeutics)
- [Cullinan Therapeutics](https://millionrounds.com/company/cullinan-therapeutics)
- [GH Research](https://millionrounds.com/company/gh-research)
- [Jade Biosciences](https://millionrounds.com/company/jade-biosciences)
- [Tarsus Pharmaceuticals](https://millionrounds.com/company/tarsus-pharmaceuticals)
- [Verastem Oncology](https://millionrounds.com/company/verastem-oncology)
- [Whitehawk Therapeutics](https://millionrounds.com/company/whitehawk-therapeutics)
- [ImageneBio](https://millionrounds.com/company/imagenebio)
- [Ventyx Biosciences](https://millionrounds.com/company/ventyx-biosciences)

## Series C and later

3

- [ACELYRIN](https://millionrounds.com/company/acelyrin)
- [Artios Pharma](https://millionrounds.com/company/artios-pharma)
- [Umoja Biopharma](https://millionrounds.com/company/umoja-biopharma)

## Segment by segment

### Stage not reported

10 startups · $2.6B raised

- [**Mineralys Therapeutics**](https://millionrounds.com/company/mineralys-therapeutics) Mineralys Therapeutics is a clinical-stage biopharmaceutical company committed to developing therapy for the treatment of hypertension. United States $788M
- [**Dianthus Therapeutics**](https://millionrounds.com/company/dianthus-therapeutics) Dianthus Therapeutics is a biotech company developing new treatments for serious autoimmune diseases using a more targeted approach. United States $719M
- [**Cullinan Therapeutics**](https://millionrounds.com/company/cullinan-therapeutics) Cullinan Therapeutics is a developer of an externally sourced cancer therapeutics used to end a drug program quickly. United States $280M
- [**GH Research**](https://millionrounds.com/company/gh-research) GH Research is a biopharmaceutical company developing novel therapies for the management of mental illness. Ireland $268M
- [**Jade Biosciences**](https://millionrounds.com/company/jade-biosciences) Jade Biosciences is developing transformative therapies to redefine the standard of care for inflammation and immunology indications. United States $195M
- [**Tarsus Pharmaceuticals**](https://millionrounds.com/company/tarsus-pharmaceuticals) Tarsus Pharmaceuticals is a clinical-stage biopharmaceutical company that develops treatments for diseases with high unmet need. United States $125M
- [**Verastem Oncology**](https://millionrounds.com/company/verastem-oncology) Verastem is a biopharmaceutical company developing new medicines to improve the lives of patients with RAS/MAPK pathway-driven cancers. United States $90M
- [**Whitehawk Therapeutics**](https://millionrounds.com/company/whitehawk-therapeutics) Whitehawk Therapeutics, a clinical-stage oncology therapeutics firm, applies cutting-edge technologies to well-established tumor biology. United States $88M

### Series C and later

3 startups · $548M raised

- [**ACELYRIN**](https://millionrounds.com/company/acelyrin) ACELYRIN is a biopharma company that identifies, acquires, and accelerates the development and commercialization of life-changing therapies. United States $300M
- [**Artios Pharma**](https://millionrounds.com/company/artios-pharma) Artios Pharma is a independent DNA Damage Response company with a strong pipeline of novel cancer therapies. United Kingdom $148M
- [**Umoja Biopharma**](https://millionrounds.com/company/umoja-biopharma) Umoja Biopharma is a clinical-stage biotechnology company based in Seattle, Washington, founded in 2019. United States $100M

**How this map is made.** Every startup here works in Pharma and has raised money in a round we track that names RTW Investments LLC 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)

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