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Mersana Therapeutics Inc

MRSN
29.080USD
0.0000.00%
Close 02/06, 16:00ETQuotes delayed by 15 min
145.36MMarket Cap
LossP/E TTM

Mersana Therapeutics Inc

29.080
0.0000.00%

More Details of Mersana Therapeutics Inc Company

Mersana Therapeutics, Inc. is a clinical-stage biopharmaceutical company, which is focused on the development of antibody-drug conjugates (ADCs), which offer a clinically meaningful benefit for cancer patients with significant unmet needs. It has developed two proprietary and differentiated ADC platforms: Dolasynthen and Immunosynthen. Dolasynthen is a cytotoxic ADC platform that is designed to generate site-specific, homogeneous ADCs. Immunosynthen is its proprietary stimulator of interferon genes (STING)-agonist platform that is designed to generate systemically administered ADCs that locally activate STING signaling in both antigen-expressing tumor cells and in tumor-resident immune cells. The Company's pipeline includes Emi-Le (emiltatug ledadotin; XMT-1660), a Dolasynthen ADC targeting B7-H4, and XMT-2056, an Immunosynthen ADC targeting a novel epitope of human epidermal growth factor receptor 2 (HER2).

Mersana Therapeutics Inc Info

Ticker SymbolMRSN
Company nameMersana Therapeutics Inc
IPO dateJun 28, 2017
CEOHuber (Martin H)
Number of employees102
Security typeOrdinary Share
Fiscal year-endJun 28
Address840 Memorial Dr
CityCAMBRIDGE
Stock exchangeNASDAQ OMX - NASDAQ BASIC
CountryUnited States of America
Postal code02139
Phone16174980020
Websitehttps://www.mersana.com/
Ticker SymbolMRSN
IPO dateJun 28, 2017
CEOHuber (Martin H)

Company Executives of Mersana Therapeutics Inc

Name
Name/Position
Position
Shareholding
Change
Dr. Timothy B. Lowinger, Ph.D.
Dr. Timothy B. Lowinger, Ph.D.
Senior Vice President, Chief Science and Technology Officer
Senior Vice President, Chief Science and Technology Officer
10.31K
+56.00%
Mr. David M. (Dave) Mott
Mr. David M. (Dave) Mott
Independent Chairman of the Board
Independent Chairman of the Board
386.00
-23546.00%
Mr. Lawrence M. (Larry) Alleva, CPA
Mr. Lawrence M. (Larry) Alleva, CPA
Independent Director
Independent Director
85.00
-578.00%
Dr. Mohan Bala, Ph.D.
Dr. Mohan Bala, Ph.D.
Senior Vice President, Chief Development Officer
Senior Vice President, Chief Development Officer
1.00
-2927.00%
Ms. Anna Protopapas
Ms. Anna Protopapas
Director
Director
--
--
Dr. Willard H. Dere, M.D.
Dr. Willard H. Dere, M.D.
Independent Director
Independent Director
--
--
Dr. Andrew A. F. Hack, M.D., Ph.D.
Dr. Andrew A. F. Hack, M.D., Ph.D.
Independent Director
Independent Director
--
--
Dr. Kristen M. Hege, M.D.
Dr. Kristen M. Hege, M.D.
Independent Director
Independent Director
--
--
Mr. Brian Deschuytner
Mr. Brian Deschuytner
Chief Financial Officer, Chief Operating Officer, Senior Vice President
Chief Financial Officer, Chief Operating Officer, Senior Vice President
--
--
Dr. Martin H. Huber, M.D.
Dr. Martin H. Huber, M.D.
President, Chief Executive Officer, Director
President, Chief Executive Officer, Director
--
--
View more
Name
Name/Position
Position
Shareholding
Change
Dr. Timothy B. Lowinger, Ph.D.
Dr. Timothy B. Lowinger, Ph.D.
Senior Vice President, Chief Science and Technology Officer
Senior Vice President, Chief Science and Technology Officer
10.31K
+56.00%
Mr. David M. (Dave) Mott
Mr. David M. (Dave) Mott
Independent Chairman of the Board
Independent Chairman of the Board
386.00
-23546.00%
Mr. Lawrence M. (Larry) Alleva, CPA
Mr. Lawrence M. (Larry) Alleva, CPA
Independent Director
Independent Director
85.00
-578.00%
Dr. Mohan Bala, Ph.D.
Dr. Mohan Bala, Ph.D.
Senior Vice President, Chief Development Officer
Senior Vice President, Chief Development Officer
1.00
-2927.00%
Ms. Anna Protopapas
Ms. Anna Protopapas
Director
Director
--
--
Dr. Willard H. Dere, M.D.
Dr. Willard H. Dere, M.D.
Independent Director
Independent Director
--
--

Revenue Breakdown

FY2025Q3
FY2025Q2
FY2025Q1
FY2024
Relevant data have not been disclosed by the company yet.
By RegionUSD
Name
Revenue
Proportion
United States
11.01M
0.00%
By Business
By Region
Relevant data have not been disclosed by the company yet.

Shareholding Stats

Updated: Fri, Feb 6
Updated: Fri, Feb 6
Shareholders
Shareholder Types
Shareholders
Shareholders
Proportion
Alamea Verwaltungs GmbH
8.60%
Schonfeld Strategic Advisors LLC
5.47%
683 Capital Management LLC
5.47%
The Vanguard Group, Inc.
4.21%
Rock Springs Capital Management LP
3.05%
Other
73.20%
Shareholders
Shareholders
Proportion
Alamea Verwaltungs GmbH
8.60%
Schonfeld Strategic Advisors LLC
5.47%
683 Capital Management LLC
5.47%
The Vanguard Group, Inc.
4.21%
Rock Springs Capital Management LP
3.05%
Other
73.20%
Shareholder Types
Shareholders
Proportion
Hedge Fund
22.97%
Investment Advisor
15.56%
Investment Advisor/Hedge Fund
7.96%
Research Firm
2.49%
Venture Capital
1.04%
Bank and Trust
0.83%
Individual Investor
0.67%
Family Office
0.30%
Other
48.17%

Institutional Shareholding

Updated: Thu, Jan 1
Updated: Thu, Jan 1
Reporting Period
No. of institutions
Shares Held
Proportion
Change
2025Q4
270
3.32M
66.35%
-1.52M
2025Q3
299
3.05M
61.05%
-2.62M
2025Q2
344
3.57M
71.71%
-3.19M
2025Q1
381
91.14M
73.20%
-85.10M
2024Q4
376
108.41M
87.04%
-80.71M
2024Q3
381
121.20M
99.04%
-61.95M
2024Q2
378
118.97M
97.46%
-69.30M
2024Q1
377
122.29M
100.13%
-59.89M
2023Q4
366
116.96M
97.07%
-50.97M
2023Q3
372
116.93M
97.32%
-45.36M
View more

Shareholder Activity

Name
Shares Held
Proportion
Change
Chg %
Date
Alamea Verwaltungs GmbH
430.02K
8.6%
+405.86K
+1679.24%
Sep 30, 2025
Schonfeld Strategic Advisors LLC
273.58K
5.47%
+46.63K
+20.54%
Sep 30, 2025
683 Capital Management LLC
273.42K
5.47%
+173.42K
+173.42%
Nov 17, 2025
The Vanguard Group, Inc.
302.55K
6.05%
-4.58K
-1.49%
Sep 30, 2025
Rock Springs Capital Management LP
152.59K
3.05%
-1.00
-0.00%
Sep 30, 2025
Acadian Asset Management LLC
142.36K
2.85%
+24.15K
+20.43%
Sep 30, 2025
SilverArc Capital Management, LLC
133.64K
2.67%
+8.50K
+6.79%
Sep 30, 2025
BlackRock Institutional Trust Company, N.A.
93.44K
1.87%
-48.91K
-34.36%
Sep 30, 2025
Renaissance Technologies LLC
88.47K
1.77%
-25.54K
-22.40%
Sep 30, 2025
Millennium Management LLC
77.99K
1.56%
-5.62K
-6.72%
Sep 30, 2025
View more

Related ETFs

Updated: Tue, Dec 2
Updated: Tue, Dec 2
Name
Proportion
State Street SPDR S&P Biotech ETF
0%
Direxion Daily S&P Biotech Bull 3X Shares
0%
Invesco Nasdaq Biotechnology ETF
0%
ProShares Hedge Replication ETF
0%
Pacer WealthShield ETF
0%
ProShares Ultra Nasdaq Biotechnology
0%
Global X Russell 2000 Covered Call ETF
0%
Avantis US Equity ETF
0%
iShares Micro-Cap ETF
0%
Global X Russell 2000 ETF
0%
View more
State Street SPDR S&P Biotech ETF
Proportion0%
Direxion Daily S&P Biotech Bull 3X Shares
Proportion0%
Invesco Nasdaq Biotechnology ETF
Proportion0%
ProShares Hedge Replication ETF
Proportion0%
Pacer WealthShield ETF
Proportion0%
ProShares Ultra Nasdaq Biotechnology
Proportion0%
Global X Russell 2000 Covered Call ETF
Proportion0%
Avantis US Equity ETF
Proportion0%
iShares Micro-Cap ETF
Proportion0%
Global X Russell 2000 ETF
Proportion0%

Dividend

A total of 0.00 USD has been distributed in dividends over the past 5 years.
Date
Dividend
Record Date
Payment Date
Ex-dividend Date
No Data

Stock Splits

Date
Ex-dividend Date
Type
Ratio
Jul 24, 2025
Merger
25→1
Date
Ex-dividend Date
Type
Ratio
Jul 24, 2025
Merger
25→1
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