# Pasithea Therapeutics funding: rounds and investors

> Pasithea Therapeutics has raised $60M across 1 round since 2025. Investors include Janus Henderson Investors, Vivo Capital and Adage Capital Management.

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

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

# Who invested in *Pasithea Therapeutics*

One round we have observed, with the 3 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.

Biotech

Raised 12 months ago

Funding summary Updated 26 Oct 2026

**$60M** raised across 1 round since 2025, from 1 source

- **Latest round:** Round, $60M Nov 2025
- **Investors:** 3

See who backed them

## The rounds

- **Nov 2025** Round **$60M** [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Vivo Capital](https://millionrounds.com/fund/vivo-capital) [Adage Capital Management](https://millionrounds.com/fund/adage-capital-management) Source recorded

## Founders and team

From the SEC filings it signed: 3 on the team.

- **Stanley M. Gloss** Executive Officer i
- **Tiago Andre Dos Reis Marques** Executive Officer, Director i
- **Yassine Bendiabdallah** Executive Officer, Director i

On the board, as filed i *Emer Dos Reis Leahy* *Lawrence Steinman* *Simon Dumesnil*

## Everyone who backed them

[Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) Private equity **1** round

[Vivo Capital](https://millionrounds.com/fund/vivo-capital) Private equity **1** round

[Adage Capital Management](https://millionrounds.com/fund/adage-capital-management) Asset manager **1** round

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

## Quick answers about Pasithea Therapeutics

### Who invested in Pasithea Therapeutics?

Pasithea Therapeutics's investors include Janus Henderson Investors, Vivo Capital and Adage Capital Management.

### How much has Pasithea Therapeutics raised?

Pasithea Therapeutics has raised $60M across 1 round since 2025.

### When did Pasithea Therapeutics last raise?

Pasithea Therapeutics's most recent round was an Undisclosed round of $60M in Nov 2025.

### What was Pasithea Therapeutics's biggest round?

Its most recent round, $60M in Nov 2025, is also its largest on record.

### Who backed Pasithea Therapeutics first?

Pasithea Therapeutics's first round on record, in Nov 2025, was backed by Janus Henderson Investors, Vivo Capital and Adage Capital Management.

### What stage is Pasithea Therapeutics at?

Pasithea Therapeutics's latest named round is an Undisclosed round, in Nov 2025.

### Where is Pasithea Therapeutics based?

Pasithea Therapeutics is based in the United States.

## Companies like Pasithea Therapeutics

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

[**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)

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