# Forty Seven funding: rounds and investors

> Forty Seven has raised $81M across 2 rounds since 2017. Investors include Lightspeed Venture Partners, Google Ventures and Wellington Management.

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

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

# Who invested in *Forty Seven*

2 rounds we have observed, with the 6 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

**$81M** raised across 2 rounds since 2017, from 2 sources

**$75M** Series B **$6.0M** Round

- **Latest round:** Round, $6.0M Aug 2019
- **Biggest round:** $75M Series B · Oct 2017
- **Investors:** 6

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.

2018 2019

**$75M** Series B

**$6.0M** Round

- **First round:** Series B, $75M
- **Biggest round:** $75M
- **Between rounds:** 22 months

## The rounds

- **Aug 2019** Round **$6.0M** *2 new* *2 returning* [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [Google Ventures](https://millionrounds.com/fund/gv) [Wellington Management](https://millionrounds.com/fund/wellington-management) The Leukemia & Lymphoma Society Reported by FinSMEs
- **Oct 2017** Series B **$75M** *4 new* [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [Google Ventures](https://millionrounds.com/fund/gv) [Sutter Hill Ventures](https://millionrounds.com/fund/sutter-hill-ventures) Wellington/ Clarus Reported by FinSMEs SEC filing: $75M sold, first sale Oct 2017

## 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 B** 2017 **Round** 2019 [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [Google Ventures](https://millionrounds.com/fund/gv) [Wellington Management](https://millionrounds.com/fund/wellington-management) [Sutter Hill Ventures](https://millionrounds.com/fund/sutter-hill-ventures) The Leukemia & Lymphoma Society Wellington/ Clarus

## Everyone who backed them

[Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) VC firm **2** rounds

[Google Ventures](https://millionrounds.com/fund/gv) Corporate VC **2** rounds

[Wellington Management](https://millionrounds.com/fund/wellington-management) VC firm **1** round

[Sutter Hill Ventures](https://millionrounds.com/fund/sutter-hill-ventures) VC firm **1** round

The Leukemia & Lymphoma Society no record of our own yet **1** round

Wellington/ Clarus no record of our own yet **1** round

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

## Quick answers about Forty Seven

### Who invested in Forty Seven?

Forty Seven's investors include Lightspeed Venture Partners, Google Ventures, Wellington Management, Sutter Hill Ventures and The Leukemia & Lymphoma Society, and 1 more on record.

### How much has Forty Seven raised?

Forty Seven has raised $81M across 2 rounds since 2017.

### When did Forty Seven last raise?

Forty Seven's most recent round was an Undisclosed round of $6.0M in Aug 2019.

### What was Forty Seven's biggest round?

Forty Seven's largest round on record is $75M (Series B), in Oct 2017.

### Who backed Forty Seven first?

Forty Seven's first round on record, in Oct 2017, was backed by Lightspeed Venture Partners, Google Ventures and Sutter Hill Ventures and 1 others.

### What stage is Forty Seven at?

Forty Seven's latest named round is an Undisclosed round, in Aug 2019.

### Where is Forty Seven based?

Forty Seven is based in the United States.

## Companies like Forty Seven

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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