# Pathalys Pharma funding: rounds and investors

> Pathalys Pharma has raised $105M across 1 round since 2024. Investors include OrbiMed, TCG and Samsara BioCapital. Every round with its source.

Source: https://millionrounds.com/company/pathalys-pharma (Millionrounds; every figure on the page links to its filing or article)

United States · [Series B startup](https://millionrounds.com/companies)

# Who invested in *Pathalys Pharma*

One round we have observed, with the 4 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Pharma

Funding summary Updated 26 Oct 2026

**$105M** raised across 1 round since 2024, from 1 source

- **Latest round:** Series B, $105M Aug 2024
- **Investors:** 4

See who backed them

## The rounds

- **Aug 2024** Series B **$105M** [OrbiMed](https://millionrounds.com/fund/orbimed) [TCG](https://millionrounds.com/fund/tcg) [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) [TCG Crossover](https://millionrounds.com/fund/tcg-crossover) Source recorded

## Founders and team

From Pathalys Pharma's own website: 2 on the team.

- **Pam Danagher** SVP Head of Regulatory Affairs
- **Joseph Siletto** Board Member

## Everyone who backed them

[OrbiMed](https://millionrounds.com/fund/orbimed) Private equity **1** round

[TCG](https://millionrounds.com/fund/tcg) Private equity **1** round

[Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) VC firm **1** round

[TCG Crossover](https://millionrounds.com/fund/tcg-crossover) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=pathalys-pharma).

## Quick answers about Pathalys Pharma

### Who invested in Pathalys Pharma?

Pathalys Pharma's investors include OrbiMed, TCG, Samsara BioCapital and TCG Crossover.

### How much has Pathalys Pharma raised?

Pathalys Pharma has raised $105M across 1 round since 2024.

### When did Pathalys Pharma last raise?

Pathalys Pharma's most recent round was a Series B of $105M in Aug 2024.

### What was Pathalys Pharma's biggest round?

Its most recent round, $105M in Aug 2024, is also its largest on record.

### Who backed Pathalys Pharma first?

Pathalys Pharma's first round on record, in Aug 2024, was backed by OrbiMed, TCG and Samsara BioCapital and 1 others.

### What stage is Pathalys Pharma at?

Pathalys Pharma's latest named round is a Series B, in Aug 2024.

### Where is Pathalys Pharma based?

Pathalys Pharma is based in the United States.

## Companies like Pathalys Pharma

In the same sector, and raised in the last eighteen months.

[**Matchpoint Therapeutics** $220M · Oct 2026](https://millionrounds.com/company/matchpoint-therapeutics)[**Rx Bandz** Oct 2026](https://millionrounds.com/company/rx-bandz)[**Hera Biotech** $1.8M · Sept 2026](https://millionrounds.com/company/hera-biotech)[**GevRx Nutraceuticals** $300K · Sept 2026](https://millionrounds.com/company/gevrx-nutraceuticals)[**RegCell** $81M · Sept 2026](https://millionrounds.com/company/regcell)[**ClearSight Therapeutics** $307K · Sept 2026](https://millionrounds.com/company/clearsight-therapeutics)

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