Upstream Bio

BiotechnologySeries BWaltham, USupstreambio.com

Latest round

Series B

Last raised

Jun 2023

Total raised

$409M

Investors

13

About Upstream Bio

Based in Massachusetts, US, and founded in 2021, Upstream Bio, Inc. operates as a Biotechnology research company that offers inflammation antibody therapy for the treatment of severe asthma, inflammatory, and allergic diseases. The company was Co-founded by Oren M. Becker and others. The biotechnology firm’s lead program is at the clinical stage of a monoclonal antibody that inhibits the TSLP receptor. Thymic Stromal Lymphopoietin (TSLP) is a cytokine that is the key driver for allergic and inflammatory disease. In June 2023, Upstream Bio, Inc. In October 2024, Upstream Bio, Inc." Upstream Bio, Inc.87 million shares of common stock as part of the listing., respectively.

Who invested in Upstream Bio

13 investors across 4 rounds

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Funding rounds

  1. Series B

    Jun 19, 2023

    Amount

    $200M

    Investors

    Locked

  2. Series A

    Feb 10, 2023

    Amount

    $8M

    Investors

    Locked

  3. Series A

    Dec 5, 2022

    Amount

    $1M

    Investors

    Locked

  4. Series A

    Oct 21, 2021

    Amount

    $200M

    Investors

    Locked

Questions about Upstream Bio

Who invested in Upstream Bio?

Upstream Bio has 13 investors on record across 4 venture rounds. Sign up free to see every VC on the cap table and the rounds they joined.

How much funding has Upstream Bio raised?

Upstream Bio has raised 4 venture rounds. Sign up free to see how much each round raised and the total.

When did Upstream Bio last raise money?

Upstream Bio's most recent round on record is a Series B, in Jun 2023.

What does Upstream Bio do?

Based in Massachusetts, US, and founded in 2021, Upstream Bio, Inc.

Where is Upstream Bio headquartered?

Upstream Bio is headquartered in Waltham, US.

Which VCs invest in companies like Upstream Bio?

Among active investors with capital left to deploy, Andreessen Horowitz, Founders Fund, Accel and Thrive Capital back biotechnology companies at Upstream Bio's stage. Their profiles are linked below.

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