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Mersana Therapeutics Inc Stock Price, News & Analysis

MRSN Nasdaq

Welcome to our dedicated page for Mersana Therapeutics news (Ticker: MRSN), a resource for investors and traders seeking the latest updates and insights on Mersana Therapeutics stock.

Mersana Therapeutics, Inc. (NASDAQ: MRSN) is a clinical-stage biopharmaceutical company developing antibody-drug conjugates (ADCs) for cancers with high unmet medical need. Its news flow reflects both scientific progress and corporate developments, making the MRSN news page a focused source for investors and observers following oncology drug development and transaction activity.

Company press releases emphasize updates from its ADC pipeline, particularly Emi-Le (emiltatug ledadotin; XMT-1660), a B7-H4-directed Dolasynthen ADC, and XMT-2056, an Immunosynthen ADC targeting a novel HER2 epitope. News items have covered interim Phase 1 clinical data for Emi-Le in triple-negative breast cancer and adenoid cystic carcinoma type 1, including objective response rates and safety observations, as well as plans for dose expansion cohorts and future data readouts. Additional scientific news includes presentations at major oncology congresses such as ASCO and ESMO Breast Cancer.

Mersana’s news releases also detail collaboration milestones with partners including GSK, Janssen Biotech, Inc. (Johnson & Johnson) and Merck KGaA, Darmstadt, Germany. Examples include the achievement of development milestone payments and FDA clearance of an investigational new drug application for a Dolasynthen ADC developed under a collaboration. Corporate and capital markets news has included announcements of quarterly financial results, a 1-for-25 reverse stock split designed to support Nasdaq listing compliance, and notices related to Nasdaq listing standards.

A significant portion of recent news is devoted to the proposed acquisition of Mersana by Day One Biopharmaceuticals, Inc., including the terms of the tender offer, the structure of the contingent value rights and the expected timing of closing. Readers of the MRSN news page can therefore expect a mix of clinical trial updates, collaboration developments, financial disclosures, listing-related actions and transaction announcements. For ongoing context around these events, this page can be revisited as new company communications are released.

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FAQ

What is the current stock price of Mersana Therapeutics (MRSN)?

The current stock price of Mersana Therapeutics (MRSN) is $29.08 as of January 6, 2026.

What is the market cap of Mersana Therapeutics (MRSN)?

The market cap of Mersana Therapeutics (MRSN) is approximately 145.4M.

MRSN Rankings

MRSN Stock Data

145.36M
4.92M
Biotechnology
Pharmaceutical Preparations
Link
United States
CAMBRIDGE

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