# Rakuten Aspyrian funding: rounds and investors

> Rakuten Aspyrian has raised $434M across 2 rounds since 2018. Investors include SBI Group, Rakuten Capital and Hiroshi Mikitani. Every round with its source.

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

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

# Who invested in *Rakuten Aspyrian*

2 rounds we have observed, with the 3 investors 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

**$434M** raised across 2 rounds since 2018, from 2 sources

**$150M** Series C **$284M** Series C

- **Latest round:** Series C, $284M Dec 2018
- **Step-up i:** 1.9×
- **Investors:** 3

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.

2019

**$150M** Series C

**$284M** Series C

- **First round:** Series C, $150M
- **Biggest round:** $284M
- **Between rounds:** 4 months

## The rounds

- **Dec 2018** Series C **$284M** *2 new* [SBI Group](https://millionrounds.com/fund/sbi-group) [Rakuten Capital](https://millionrounds.com/fund/rakuten-capital) Reported by FinSMEs SEC filing: $150M sold, first sale Aug 2018
- **Aug 2018** Series C **$150M** *1 new* [Hiroshi Mikitani](https://millionrounds.com/fund/hiroshi-mikitani) Reported by FinSMEs SEC filing: $150M sold, first sale Aug 2018

## Founders and team

From the SEC filings it signed: 5 on the team.

- **Carlos Garcia** Executive Officer i
- **Hiroshi Mikitani** Executive Officer, Director i
- **Merrill Biel** Executive Officer, Director i
- **Miguel Garcia-Guzman** Executive Officer, Director i
- **Takashi Toraishi** Executive Officer i

On the board, as filed i *Hiroshi Mori*

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Series C** 2018 **Series C** 2018 [SBI Group](https://millionrounds.com/fund/sbi-group) [Rakuten Capital](https://millionrounds.com/fund/rakuten-capital) [Hiroshi Mikitani](https://millionrounds.com/fund/hiroshi-mikitani)

## Everyone who backed them

[SBI Group](https://millionrounds.com/fund/sbi-group) Growth equity **1** round

[Rakuten Capital](https://millionrounds.com/fund/rakuten-capital) Corporate VC **1** round

[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=rakuten-aspyrian).

## Quick answers about Rakuten Aspyrian

### Who invested in Rakuten Aspyrian?

Rakuten Aspyrian's investors include SBI Group, Rakuten Capital and Hiroshi Mikitani.

### How much has Rakuten Aspyrian raised?

Rakuten Aspyrian has raised $434M across 2 rounds since 2018.

### When did Rakuten Aspyrian last raise?

Rakuten Aspyrian's most recent round was a Series C of $284M in Dec 2018.

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

Its most recent round, $284M in Dec 2018, is also its largest on record.

### Who backed Rakuten Aspyrian first?

Rakuten Aspyrian's first round on record, in Aug 2018, was backed by Hiroshi Mikitani.

### What stage is Rakuten Aspyrian at?

Rakuten Aspyrian's latest named round is a Series C, in Dec 2018.

### Where is Rakuten Aspyrian based?

Rakuten Aspyrian is based in the United States.

## Companies like Rakuten Aspyrian

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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