Mersana Therapeutics, Inc.

Mersana Therapeutics, Inc.

MRSN·NASDAQ

$29.08

+0.0000%
HealthcareBiotechnology

Mersana Therapeutics, Inc., a clinical stage biopharmaceutical company, develops antibody drug conjugates (ADC) for cancer patients with unmet need. It develops XMT-1592, a Dolasynthen ADC targeting NaPi2b-expressing tumor cells, which is in phase I clinical trial for the treatment of ovarian cancer and NSCLC adenocarcinoma. The company also develops XMT-1660, a B7-H4-targeted Dolasynthen ADC candidate; and XMT-2056, an immunosynthen development candidate. It has a strategic research and development partnerships with Merck KGaA and Asana BioSciences, LLC for the development of ADC product candidates utilizing Fleximer. 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.

At a Glance

Live Snapshot
Market Cap$145.36M
EPS-14.1200
P/E Ratio-2.53
Earnings Date03/02/2026
-74.86%
Return on Invested Capital
-26%
3Y-29.0%
5Y+121.0%
10Y-83.0%
727.65%
Return on Equity
-256%
3Y-624.0%
5Y-2195.0%
10Y+1791.0%
-47.83%
Return on Assets
-37%
3Y-42.0%
5Y+89.0%
10Y-58.0%
Mersana Therapeutics, Inc.

Mersana Therapeutics, Inc. Management Team

MRSN · NASDAQ
MM

Mr. Mikhail Papisov Ph.D.

Co-Founder

male
DM

Dr. Martin H. Huber M.D.

President, Chief Executive Officer & Director

Compensation

$962,075

Born 1961(Age 65)
DM

Dr. Mohan Bala Ph.D.

Senior Vice President & Chief Development Officer

Compensation

$643,850

Born 1965(Age 61)
DT

Dr. Timothy B. Lowinger Ph.D.

Senior Vice President and Chief Science & Technology Officer

Compensation

$664,175

Born 1964(Age 62)
MC

Mr. Chuck Miller

Senior Vice President of Regulatory Affairs

male
MB

Mr. Brian C. DeSchuytner

Senior Vice President, Chief Financial Officer & Chief Operating Officer

Compensation

$684,500

Born 1978(Age 48)
male
MA

Ms. Alejandra Veronica Carvajal J.D.

Senior Vice President, Secretary & Chief Legal Officer

Compensation

$623,525

Born 1974(Age 52)
female
MA

Mr. Ashish Mandelia

Vice President & Chief Accounting Officer

Born 1975(Age 51)
male
mrsn

Mersana Therapeutics, Inc. Insider Positioning

MRSN · NASDAQ

During the last 12 months, insiders have sold $15K worth of MRSN shares, with no buying activity reported.

3 Months

Bought

0

0.00

Sold

0

0.00

Net Activity

+0

+$0

3-6 Months

Bought

0

0.00

Sold

0

0.00

Net Activity

+0

+$0

6-9 Months

Bought

0

0.00

Sold

2.1K

15.47K

Net Activity

-15K

-$15K

9-12 Months

Bought

0

0.00

Sold

0

0.00

Net Activity

+0

+$0

Top Buyers

No buying activity

Top Sellers

1
HMHJ

Huber Martin H. Jr.

Director, Officer: President, Ceo

2.0K shares1 transactions

$15K

2
BM

Bala Mohan

Officer: Svp, Chief Development Officer

77 shares1 transactions

$762

Insider Activity Analysis

Net Insider Sentiment

Bearish

Strong bearish signal with $15K net selling. Heavy insider selling may indicate concerns about valuation or near-term prospects.

Buy/Sell Ratio

0.00:1

Very poor ratio. Heavy selling with minimal buying suggests insiders may be concerned about valuation or outlook.

Insider Participation

High Selling

2 insider sellers vs. 0 buyers. Widespread selling across multiple insiders may signal concerns.

SEC Filings

MRSN - Filing history and reports

Filing TypeFiling DatePeriod EndingFiscal YearActions
DEF 14A

DEF 14A 2025

N/A

April 29, 2025
June 12, 2025
2025
DEF 14A

DEF 14A 2024

N/A

April 26, 2024
June 11, 2024
2024
DEF 14A

DEF 14A 2023

N/A

April 28, 2023
June 08, 2023
2023
DEF 14A

DEF 14A 2022

N/A

April 29, 2022
June 09, 2022
2022
DEF 14A

DEF 14A 2021

N/A

April 27, 2021
June 11, 2021
2021
DEF 14A

DEF 14A 2020

N/A

April 20, 2020
June 12, 2020
2020
DEF 14A

DEF 14A 2019

N/A

April 23, 2019
June 07, 2019
2019
DEF 14A

DEF 14A 2018

N/A

April 30, 2018
June 27, 2018
2018
Showing 1 to 8 of 8 filings