# ARMO BioSciences funding: rounds and investors

> ARMO BioSciences has raised $117M across 4 rounds since 2013. Investors include OrbiMed, DAG Ventures and Sequoia Capital. Every round with its source.

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

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

# Who invested in *ARMO BioSciences*

4 rounds we have observed, with the 14 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

**$117M** raised across 4 rounds since 2013, from 4 sources

**$20M** Series A **$30M** Series B **$67M** Series C

- **Latest round:** Venture Jan 2018
- **Biggest round:** $67M Series C · Aug 2017
- **Investors:** 14

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.

2014 2015 2016 2017 2018

**$20M** Series A

**$30M** Series B

**$67M** Series C

**?** Venture

- **First round:** Series A, $20M
- **Biggest round:** $67M
- **Usual gap between rounds:** 6 months

## The rounds

- **Jan 2018** Venture **Amount undisclosed** *2 new* *3 returning* [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [Qiming Venture Partners](https://millionrounds.com/fund/qiming-venture-partners) [OrbiMed](https://millionrounds.com/fund/orbimed) [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) [RTW Investments LLC](https://millionrounds.com/fund/rtw-investments-lp) Source recorded
- **Aug 2017** Series C **$67M** *8 new* *3 returning* [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [Google Ventures](https://millionrounds.com/fund/gv) [OrbiMed](https://millionrounds.com/fund/orbimed) [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) [DAG Ventures](https://millionrounds.com/fund/dag-ventures) [Celgene](https://millionrounds.com/fund/celgene) [Nano Dimension](https://millionrounds.com/fund/nanodimension) [HBM](https://millionrounds.com/fund/hbm) [Quan Funds](https://millionrounds.com/fund/quan-funds) Qiming Venture Partners/ Decheng RTW Reported by FinSMEs
- **May 2014** Series B **$30M** *1 new* *3 returning* [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) [OrbiMed](https://millionrounds.com/fund/orbimed) [DAG Ventures](https://millionrounds.com/fund/dag-ventures) [Nano Dimension](https://millionrounds.com/fund/nanodimension) From a historical funding record
- **Nov 2013** Series A **$20M** *3 new* [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) [OrbiMed](https://millionrounds.com/fund/orbimed) [DAG Ventures](https://millionrounds.com/fund/dag-ventures) Reported by pevc.dowjones.com

## 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 A** 2013 **Series B** 2014 **Series C** 2017 **Venture** 2018 [OrbiMed](https://millionrounds.com/fund/orbimed) [DAG Ventures](https://millionrounds.com/fund/dag-ventures) [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) [Nano Dimension](https://millionrounds.com/fund/nanodimension) [Google Ventures](https://millionrounds.com/fund/gv) [Qiming Venture Partners](https://millionrounds.com/fund/qiming-venture-partners) [RTW Investments LLC](https://millionrounds.com/fund/rtw-investments-lp) [Celgene](https://millionrounds.com/fund/celgene)

## Everyone who backed them

[OrbiMed](https://millionrounds.com/fund/orbimed) Private equity **4** rounds

[DAG Ventures](https://millionrounds.com/fund/dag-ventures) VC firm **3** rounds

[Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) VC firm **2** rounds

[Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) VC firm **2** rounds

[Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) VC firm **2** rounds

[Nano Dimension](https://millionrounds.com/fund/nanodimension) Growth equity **2** rounds

[Google Ventures](https://millionrounds.com/fund/gv) Corporate VC **1** round

[Qiming Venture Partners](https://millionrounds.com/fund/qiming-venture-partners) VC firm **1** round

[RTW Investments LLC](https://millionrounds.com/fund/rtw-investments-lp) Growth equity **1** round

[Celgene](https://millionrounds.com/fund/celgene) Growth equity **1** round

[HBM](https://millionrounds.com/fund/hbm) Venture studio **1** round

[Quan Funds](https://millionrounds.com/fund/quan-funds) VC firm **1** round

Qiming Venture Partners/ Decheng no record of our own yet **1** round

RTW 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=armo-biosciences).

## Also claim to have backed them

These 2 firms list ARMO BioSciences 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.

[Aisling Capital](https://millionrounds.com/fund/aisling-capital) Private equity Per its own site

[LAV Asset Management (HONG KONG) Limited](https://millionrounds.com/fund/lav-asset-management-hong-kong-limited) Investor Per its own site

## Quick answers about ARMO BioSciences

### Who invested in ARMO BioSciences?

ARMO BioSciences's investors include OrbiMed, DAG Ventures, Sequoia Capital, Kleiner Perkins Caufield & Byers and Kleiner Perkins, and 9 more on record.

### How much has ARMO BioSciences raised?

ARMO BioSciences has raised $117M across 4 rounds since 2013. One round did not disclose an amount, so the total is a floor.

### When did ARMO BioSciences last raise?

ARMO BioSciences's most recent round was a Venture in Jan 2018.

### What was ARMO BioSciences's biggest round?

ARMO BioSciences's largest round on record is $67M (Series C), in Aug 2017.

### Who backed ARMO BioSciences first?

ARMO BioSciences's first round on record, in Nov 2013, was backed by Kleiner Perkins Caufield & Byers, OrbiMed and DAG Ventures.

### What stage is ARMO BioSciences at?

ARMO BioSciences's latest named round is a Venture, in Jan 2018.

### Where is ARMO BioSciences based?

ARMO BioSciences is based in the United States.

## Companies like ARMO BioSciences

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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