MRSN Company Profile and Key Details

Q: Who are the executives of MRSN?

Ms. Anna Protopapas M.B.A.Pres, Chief Executive Officer & DirectorMr. Brian C. DeSchuytnerSenior Vice President & Chief Financial OfficerDr. Tushar Misra Ph.D.SVice President & Chief Manufacturing OfficerMr. Chuck MillerSenior Vice President of Regulatory AffairsDr. Timothy B. Lowinger Ph.D.Senior Vice President, Chief Science & Technology OfficerMs. Alejandra Veronica Carvajal J.D.SVice President, Sec. & Chief Legal OfficerDr. Arvin Yang M.D., Ph.D.Senior Vice President & Chief Medical OfficerMr. Mikhail Papisov Ph.D.Co-FounderMr. Ashish MandeliaVice President, Controller & Principal Accounting OfficerMr. Jason FredetteSenior Vice President of Investor Relations & Corporation CommunicationsMs. Carla PoulsonSenior Vice President & Chief People Officer

NASDAQ : MRSN

Mersana Therapeutics

$29.08

At Close 4:00 PM

Not Actively Trading

61.83

BESG ScoreESG Rating

Profile Key Stats Analyst Ratings Ownership Ratios Financials Dividend & splits Sentiment Forecast

Price Chart

Stock Price Today

Mersana Therapeutics, Inc. (MRSN) stock remained unchanged at $29.08 a share on NASDAQ. The stock opened at $28.78, fluctuating between $28.78 to $29.08 during the session.

Stock Snapshot

29.08

Prev. Close

145.36M

Market Cap

28.78

Day Low

-2.0845878136200717

P/E Ratio

-13.95

EPS (TTM)

-1.44

Cash Flow per Share

28.78

Open

Number of Shares

29.08

Day High

78.23%

Free Float in %

0.31

Book Value

624.03K

Volume

Relevant Articles

SEC Fillings

Current Report (8-k)

Filing Date	Accepted Date

Annual Report (10-k)

Filing Date	Accepted Date

Stock Price History Chart

Date	Open	High	Low	Close	Volume
Jan 06, 2026	28.78	29.08	28.78	29.08	624.03K
Jan 05, 2026	28.90	30.39	28.78	29.08	703.76K
Jan 02, 2026	29.00	29.33	28.73	29.04	103.07K
Dec 31, 2025	28.48	28.96	28.48	28.93	174.17K
Dec 30, 2025	28.56	28.98	28.11	28.65	302.77K
Dec 29, 2025	28.87	29.11	28.40	28.73	149.73K
Dec 26, 2025	29.10	29.15	28.91	29.08	82.37K
Dec 24, 2025	29.01	29.14	29.00	29.10	14.01K
Dec 23, 2025	28.88	29.07	28.85	29.00	60.6K
Dec 22, 2025	28.91	29.12	28.86	28.92	31.65K
Dec 19, 2025	29.29	29.39	28.85	28.94	84.93K
Dec 17, 2025	28.56	29.20	28.55	29.06	116.25K
Dec 16, 2025	28.43	29.12	28.38	29.05	61.95K
Dec 15, 2025	28.28	28.80	28.28	28.59	68.16K
Dec 12, 2025	28.38	28.70	28.11	28.35	55.28K
Dec 11, 2025	28.11	28.41	28.10	28.23	33.43K
Dec 10, 2025	27.91	28.59	27.90	28.11	60.63K
Dec 09, 2025	27.85	28.63	27.85	28.14	45.71K
Dec 08, 2025	28.03	28.15	27.80	27.92	41.34K
Dec 05, 2025	27.65	27.97	27.36	27.78	48.21K

Contact Details

Cambridge, MA 02139

United States

https://www.dayonebio.com 617 498 0020

About Company

Mersana Therapeutics, Inc. is a clinical-stage biopharmaceutical company dedicated to pioneering novel antibody-drug conjugates (ADCs) for cancer patients with pressing unmet medical needs. Their flagship product candidate, XMT-1592, a Dolasynthen ADC engineered to target NaPi2b-expressing tumor cells, is presently undergoing Phase I clinical evaluation for the treatment of ovarian cancer and NSCLC adenocarcinoma. The company's development pipeline also includes XMT-1660, a B7-H4-targeted Dolasynthen ADC candidate, and XMT-2056, an Immunosynthen development candidate. Additionally, Mersana maintains strategic research and development collaborations with Merck KGaA and Asana BioSciences, LLC for the creation of ADC product candidates, leveraging its Fleximer technology. Incorporated in 2001, the company initially operated as Nanopharma Corp. before rebranding as Mersana Therapeutics, Inc. in November 2005, and is headquartered in Cambridge, Massachusetts.

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Frequently Asked Questions

What is the current Mersana Therapeutics, Inc. (MRSN) stock price?

Mersana Therapeutics, Inc. (NASDAQ: MRSN) stock price is $29.08 in the last trading session. During the trading session, MRSN stock reached the peak price of $29.08 while $28.78 was the lowest point it dropped to. The percentage change in MRSN stock occurred in the recent session was 0% while the dollar amount for the price change in MRSN stock was $0.00.

MRSN's industry and sector of operation?

The NASDAQ listed MRSN is part of Biotechnology industry that operates in the broader Healthcare sector. Mersana Therapeutics, Inc. designs, manufactures, and markets smartphones, personal computers, tablets, wearables, and accessories worldwide.

Who are the executives of MRSN?

Ms. Anna Protopapas M.B.A.
Pres, Chief Executive Officer & Director
Mr. Brian C. DeSchuytner
Senior Vice President & Chief Financial Officer
Dr. Tushar Misra Ph.D.
SVice President & Chief Manufacturing Officer
Mr. Chuck Miller
Senior Vice President of Regulatory Affairs
Dr. Timothy B. Lowinger Ph.D.
Senior Vice President, Chief Science & Technology Officer
Ms. Alejandra Veronica Carvajal J.D.
SVice President, Sec. & Chief Legal Officer
Dr. Arvin Yang M.D., Ph.D.
Senior Vice President & Chief Medical Officer
Mr. Mikhail Papisov Ph.D.
Co-Founder
Mr. Ashish Mandelia
Vice President, Controller & Principal Accounting Officer
Mr. Jason Fredette
Senior Vice President of Investor Relations & Corporation Communications
Ms. Carla Poulson
Senior Vice President & Chief People Officer

How MRSN did perform over past 52-week?

MRSN's closing price is 458.16% higher than its 52-week low of $5.21 where as its distance from 52-week high of $30.39 is -4.31%.

How many employees does MRSN have?

Number of MRSN employees currently stands at 102.

Link for MRSN official website?

Official Website of MRSN is: https://www.dayonebio.com

How do I contact MRSN?

MRSN could be contacted at phone 617 498 0020 and can also be accessed through its website. MRSN operates from 840 Memorial Drive, Cambridge, MA 02139, United States.

How many shares of MRSN are traded daily?

MRSN stock volume for the day was 624.03K shares. The average number of MRSN shares traded daily for last 3 months was 135.97K.

What is the market cap of MRSN currently?

The market value of MRSN currently stands at $145.36M with its latest stock price at $29.08 and 5M of its shares outstanding.

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Employees	102
Beta	0.43
Sales or Revenue	$36.86M
5Y Sales Change%	-0.31%
Fiscal Year Ends	December
Sector	Healthcare
Industry	Biotechnology

Employees	102
Beta	0.43
Sales or Revenue	$36.86M
5Y Sales Change%	-0.31%
Fiscal Year Ends	December
Sector	Healthcare
Industry	Biotechnology

MRSN Company Profile and Key Details

Mersana Therapeutics

Price Chart

Stock Price Today

Stock Snapshot

Relevant Articles

SEC Fillings

Current Report (8-k)

Annual Report (10-k)

Stock Price History Chart

Contact Details

About Company

Company Information

Stock Peers

Frequently Asked Questions

Price Chart

Stock Price Today

Stock Snapshot

Relevant Articles

SEC Fillings

Current Report (8-k)

Annual Report (10-k)

Stock Price History Chart

Contact Details

About Company

Company Information

Stock Peers

Company Overview

Technical Performance

Valuation Metrics

Dividend & Fair Value

Earnings & Analyst Outlook

Shareholding & Insider Activity

Financial & Profitability Overview

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Frequently Asked Questions

Technical Performance

Dividend & Fair Value

Company Overview

Earnings & Analyst Outlook

Financial & Profitability Overview

Quarterly Financial Highlights

Shareholding & Insider Activity

Valuation Metrics

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