Mersana Therapeutics, Inc. (MRSN)
NASDAQ: MRSN · Real-Time Price · USD
27.30
-0.21 (-0.76%)
At close: Nov 21, 2025, 4:00 PM EST
27.00
-0.30 (-1.10%)
After-hours: Nov 21, 2025, 7:45 PM EST

Company Description

Mersana Therapeutics, Inc., a clinical-stage biopharmaceutical company, develops antibody-drug conjugates (ADC) for cancer patients with unmet needs.

The company develops Emi-Le (XMT-1660), a B7-H4-targeting Dolasynthen ADC candidate, which is in Phase 1 clinical trial; and XMT-2056, an Immunosynthen ADC targeting a novel human epidermal growth factor receptor 2 that is in Phase 1 clinical trial.

Its preclinical products portfolio includes XMT-2068 and XMT-2175. It has strategic research and development collaborations with Janssen Biotech, Inc., Ares Trading S.A., Merck KGaA, and Asana Biosciences, LLC for the development of ADC product candidates.

The company was formerly known as Nanopharma Corp. and changed its name to Mersana Therapeutics, Inc. in November 2005.

Mersana Therapeutics, Inc. was incorporated in 2001 and is headquartered in Cambridge, Massachusetts.

Mersana Therapeutics, Inc.
Mersana Therapeutics logo
CountryUnited States
Founded2001
IPO DateJun 28, 2017
IndustryBiotechnology
SectorHealthcare
Employees102
CEOMartin Huber

Contact Details

Address:
840 Memorial Drive
Cambridge, Massachusetts 02139
United States
Phone617 498 0020
Websitemersana.com

Stock Details

Ticker SymbolMRSN
ExchangeNASDAQ
Stock TypeCommon Stock
Fiscal YearJanuary - December
Reporting CurrencyUSD
CIK Code0001442836
CUSIP Number59045L205
ISIN NumberUS59045L2051
SIC Code2834

Key Executives

NamePosition
Dr. Martin H. Huber M.D.President, Chief Executive Officer and Director
Brian C. DeSchuytnerSenior Vice President, Chief Financial Officer and Chief Operating Officer
Dr. Timothy B. Lowinger Ph.D.Senior Vice President and Chief Science and Technology Officer
Alejandra Veronica Carvajal J.D.Senior Vice President, Secretary and Chief Legal Officer
Dr. Mohan Bala Ph.D.Senior Vice President and Chief Development Officer
Mikhail Papisov Ph.D.Co-Founder
Ashish MandeliaVice President and Chief Accounting Officer
Chuck MillerSenior Vice President of Regulatory Affairs

Latest SEC Filings

DateTypeTitle
Nov 14, 2025SCHEDULE 13GFiling
Nov 14, 2025SC TO-CFiling
Nov 14, 202510-QQuarterly Report
Nov 14, 2025SC14D9CFiling
Nov 14, 20258-KCurrent Report
Nov 13, 2025SCHEDULE 13D/AFiling
Nov 13, 2025SC TO-CFiling
Nov 13, 2025SC14D9CFiling
Nov 13, 2025SC TO-CFiling
Nov 13, 20258-KCurrent Report