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Ambros Therapeutics to merge with Werewolf Therapeutics

RECENTLY ACQUIREDAug 21, 2026

Acquiring Company

Ambros Therapeutics

Acquired Company

Werewolf Therapeutics

IrvineWatertownBiotechnologyHealth CareTherapeuticsBiotechnologyHealthcareHealth CareTherapeutics

Description

Werewolf Therapeutics and Ambros Therapeutics have entered a definitive all-stock merger agreement to form a Nasdaq-listed biotechnology company. The merger will enable the combined entity to focus on developing neridronate for Complex Regional Pain Syndrome Type 1. The transaction is expected to close by the first quarter of 2027, subject to appropriate approvals. Existing shareholders will receive a stake in the new company and potential value tied to legacy assets.

Quick answer

Ambros Therapeutics is acquiring Werewolf Therapeutics, announced August 21, 2026. Ambros Therapeutics is based in Irvine, California, United States.

How much did Ambros Therapeutics pay for Werewolf Therapeutics?
The deal value was not disclosed.
What does Ambros Therapeutics do?
Ambros Therapeutics is a biotech firm focused on developing a non-opioid pain medicine for Complex Regional Pain Syndrome type 1 (CRPS-1).
Where are Ambros Therapeutics and Werewolf Therapeutics based?
Ambros Therapeutics is based in Irvine, California, United States. Werewolf Therapeutics is based in Watertown, Massachusetts, United States.
Who are the decision-makers at Ambros Therapeutics?
Fundz holds 2 contacts at Ambros Therapeutics. Names and contact details are shown to Fundz members.

Source: Fundz verified event record.

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Company Information

Company

Ambros Therapeutics

Location

Irvine, California, United States

About

Ambros Therapeutics is a biotech firm focused on developing a non-opioid pain medicine for Complex Regional Pain Syndrome type 1 (CRPS-1). Co-founded by Vivek Ramaswamy and industry veteran Keith Katkin, the company has secured $125 million in series A funding to support a pivotal phase 3 trial of its lead candidate, neridronate. The drug has a history of use in Italy since 2014 and aims to provide an alternative treatment solution for patients suffering from this rare disease. With a seasoned leadership team, Ambros seeks to advance its therapy through partnership with Abiogen Pharma.

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Frequently asked

Who acquired Werewolf Therapeutics?

Werewolf Therapeutics was acquired by Ambros Therapeutics, based in Irvine. The deal was reported on August 21, 2026. Ambros Therapeutics is a biotech firm focused on developing a non-opioid pain medicine for Complex Regional Pain Syndrome type 1 (CRPS-1). Ambros Therapeutics is privately held and operates in Biotechnology.

When did Ambros Therapeutics acquire Werewolf Therapeutics?

Ambros Therapeutics's acquisition of Werewolf Therapeutics was reported on August 21, 2026. Werewolf Therapeutics and Ambros Therapeutics have entered a definitive all-stock merger agreement to form a Nasdaq-listed biotechnology company. Fundz records the date the transaction was first publicly reported, sourced from filings and company announcements.

What does Werewolf Therapeutics do?

Werewolf Therapeutics, Inc. is an innovative clinical-stage biopharmaceutical company pioneering the development of therapeutics engineered to stimulate the body’s immune system for the treatment of cancer. It is publicly traded (HOWL), operating in Biotechnology, and is based in Watertown.

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