Mersana Therapeutics, Inc. Common Stock

MRSN

Mersana Therapeutics, Inc. is a biotechnology company focused on developing innovative antibody drug conjugates (ADCs) for the treatment of cancer. Founded in 2014, the company leverages its proprietary platform to design and develop highly targeted therapies aimed at difficult-to-treat tumors, with an emphasis on delivering potent medicines directly to cancer cells while minimizing damage to healthy tissue.

$27.82 +0.05 (0.16%)
🚫 Mersana Therapeutics, Inc. Common Stock does not pay dividends

Company News

Halper Sadeh LLC Encourages SEE, EXAS, MRSN Shareholders to Contact the Firm to Discuss Their Rights
GlobeNewswire Inc. • Halper Sadeh Llc • November 27, 2025

Law firm Halper Sadeh LLC is investigating potential securities law violations and fiduciary duty breaches for several companies involved in recent merger and acquisition transactions.

Day One Biopharma Expands Oncology Pipeline With $285 Million Mersana Buyout
Benzinga • Vandana Singh • November 13, 2025

Day One Biopharmaceuticals agreed to acquire Mersana Therapeutics for up to $285 million, expanding its oncology pipeline with a focus on developing antibody-drug conjugates targeting cancers, particularly in pediatric and triple-negative breast cancer treatments.

Mersana Therapeutics, Inc. (MRSN) Reports Q1 Loss, Misses Revenue Estimates
Zacks Investment Research • Zacks Equity Research • May 9, 2024

Mersana Therapeutics (MRSN) delivered earnings and revenue surprises of 11.11% and 5.18%, respectively, for the quarter ended March 2024. Do the numbers hold clues to what lies ahead for the stock?

Mersana Therapeutics: Still In 'Show Me' Territory
Seeking Alpha • Bret Jensen • October 14, 2023

Mersana Therapeutics suffered a major trial failure for its lead candidate in July, causing a significant drop in stock value. Read more on MRSN stock here.

Mersana Therapeutics's stock craters after FDA halts trials of ovarian cancer treatment after patient deaths
MarketWatch • MarketWatch • June 15, 2023

Mersana's stock tumbles 58% to mark its biggest-ever one-day percentage decline since going public in 2018.

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