# Altay Therapeutics funding: rounds and investors

> Altay Therapeutics has raised $3.0M across 1 round since 2022. Investors include Y Combinator, Bossa Invest and Creative Destruction Lab.

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

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

# Who invested in *Altay 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

Y Combinator: W20

Funding summary Updated 26 Oct 2026

**$3.0M** raised across 1 round since 2022, from 1 source

- **Latest round:** Seed, $3.0M Sept 2022
- **Investors:** 3

See who backed them

## The rounds

- **Sept 2022** Seed **$3.0M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Bossa Invest](https://millionrounds.com/fund/bossa-invest) [Creative Destruction Lab](https://millionrounds.com/fund/creative-destruction-lab) Source recorded

## Founders and team

From Altay Therapeutics's own website: 3 on the team.

- **Jim Breitmeyer** CEO
- **Lead Optimization** Lead
- **Mike Grey** Executive Chair

## Everyone who backed them

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round

[Bossa Invest](https://millionrounds.com/fund/bossa-invest) VC firm **1** round

[Creative Destruction Lab](https://millionrounds.com/fund/creative-destruction-lab) Accelerator **1** round

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

## Also claim to have backed them

These 2 firms list Altay Therapeutics as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

[HealthCap](https://millionrounds.com/fund/healthcap) VC firm Per its own site

[Tachyon Ventures](https://millionrounds.com/fund/tachyon-ventures) VC firm Per its own site

## Quick answers about Altay Therapeutics

### Who invested in Altay Therapeutics?

Altay Therapeutics's investors include Y Combinator, Bossa Invest and Creative Destruction Lab.

### How much has Altay Therapeutics raised?

Altay Therapeutics has raised $3.0M across 1 round since 2022.

### When did Altay Therapeutics last raise?

Altay Therapeutics's most recent round was a Seed of $3.0M in Sept 2022.

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

Its most recent round, $3.0M in Sept 2022, is also its largest on record.

### Who backed Altay Therapeutics first?

Altay Therapeutics's first round on record, in Sept 2022, was backed by Y Combinator, Bossa Invest and Creative Destruction Lab.

### What stage is Altay Therapeutics at?

Altay Therapeutics's latest named round is a Seed, in Sept 2022.

### Where is Altay Therapeutics based?

Altay Therapeutics is based in the United States.

## Companies like Altay 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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