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Oyster Therapeutics announces the closing of a $60 million Series A-2 financing to advance targeted protein degraders for Alzheimer’s and other neurodegenerative diseases.

PRIVATENov 10, 2026

Amount Raised

$60 Million

Round Type

Series A

Greater LondonBiotechnologyHealth CareTherapeutics

Description

Oyster Therapeutics, formerly known as Kesmalea Therapeutics, has closed a $60 million Series A-2 financing round. The funding will be used to advance their next-generation targeted protein degraders. This financing supports their mission to develop treatments for Alzheimer’s and other neurodegenerative diseases. The company has also rebranded as part of their growth strategy.

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Company Information

Company

Oyster Therapeutics

Location

Greater London, England, United Kingdom

About

Oyster Therapeutics, formerly known as Kesmalea Therapeutics, focuses on developing next-generation targeted protein degraders. The company aims to address Alzheimer’s and other neurodegenerative diseases through innovative therapies. Their approach strives to improve the treatment landscape for these challenging conditions. With the recent funding, they are positioned to advance their research and development efforts.

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Funding Insights

What this usually means
Typical timeline to Series B
Series A companies typically raise their next round in 10-18 months

Oyster Therapeutics raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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