# Aspyrian Therapeutics funding: rounds and investors

> Aspyrian Therapeutics has raised $28M across 3 rounds since 2015. Investors include Hiroshi Mikitani. Every round with its source.

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

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

# Who invested in *Aspyrian Therapeutics*

3 rounds we have observed, with the one investor named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Biotech Healthcare

Funding summary Updated 26 Oct 2026

**$28M** raised across 3 rounds since 2015, from 3 sources

**$8.4M** Venture **$4.3M** Series A **$15M** Series B

- **Latest round:** Series B, $15M Jul 2017
- **Step-up i:** 3.6×
- **Investors:** 1

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2015 2016 2017

**$8.4M** Venture

**$4.3M** Series A

**$15M** Series B

- **First round:** Venture, $8.4M
- **Biggest round:** $15M
- **Usual gap between rounds:** 2 years

## The rounds

- **Jul 2017** Series B **$15M** *1 new* [Hiroshi Mikitani](https://millionrounds.com/fund/hiroshi-mikitani) Reported by FinSMEs SEC filing: $15M sold, first sale Jul 2017
- **Jul 2015** Series A **$4.3M** No investor was named in the report. From a historical funding record SEC filing: $4.2M sold, first sale Jul 2015
- **Jan 2015** Venture **$8.4M** No investor was named in the report. From a historical funding record SEC filing: $8.5M sold, first sale Dec 2014

## Founders and team

From the SEC filings it signed: 2 on the team.

- **Merrill Biel** Executive Officer, Director i
- **Miguel Garcia-Guzman** Executive Officer, Director i

On the board, as filed i *Hiroshi Mikitani* *Hiroshi Mori*

## Everyone who backed them

[Hiroshi Mikitani](https://millionrounds.com/fund/hiroshi-mikitani) Growth equity **1** round

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

## Quick answers about Aspyrian Therapeutics

### Who invested in Aspyrian Therapeutics?

Aspyrian Therapeutics's investors include Hiroshi Mikitani.

### How much has Aspyrian Therapeutics raised?

Aspyrian Therapeutics has raised $28M across 3 rounds since 2015.

### When did Aspyrian Therapeutics last raise?

Aspyrian Therapeutics's most recent round was a Series B of $15M in Jul 2017.

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

Its most recent round, $15M in Jul 2017, is also its largest on record.

### Who backed Aspyrian Therapeutics first?

Aspyrian Therapeutics's first round on record, in Jul 2017, was backed by Hiroshi Mikitani.

### What stage is Aspyrian Therapeutics at?

Aspyrian Therapeutics's latest named round is a Series B, in Jul 2017.

### Where is Aspyrian Therapeutics based?

Aspyrian Therapeutics is based in the United States.

## Companies like Aspyrian 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)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)

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