| MRSN Shares Outstanding History Table | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Below is a table of the MRSN shares outstanding history going back to 6/28/2017:
Also see: MRSN Market Cap History MRSN YTD Return |
MRSN Shares Outstanding History — Mersana Therapeutics Share Count Over Time
As of 11/7/2025 Mersana Therapeutics has 5.00 million MRSN shares outstanding. Investors often track the MRSN shares outstanding history to compare shareholder return trends against the change in share count over time.
This page shows MRSN share count trends over time, with 36 historical shares outstanding datapoints presented, dating back to 6/28/2017.
| MRSN Shares Outstanding History Chart | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
MRSN Historical Shares Outstanding: +22.65% CAGR 
Mouse over chart for data details
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| MRSN Stock Price Chart |
| About Mersana Therapeutics Inc |
| 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 its cytotoxic ADC platform that is designed to generate site-specific, homogeneous ADCs. We show 36 historical shares outstanding datapoints in our coverage of MRSN's shares outstanding history. Understanding the changing numbers of MRSN shares outstanding — and comprehending the concept of differing number of shares outstanding in general comparing companies like MRSN versus peers — is critical for investors. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies. Furthermore, via issuance of new shares over time, or the repurchase of existing shares, the number of shares outstanding can fluctuate over the course of history. With this page we aim to empower investors researching MRSN by allowing them to research MRSN shares outstanding history as well as any other stock in our coverage universe. |
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| MRSN Share Performance |
| Shares Outstanding Peers |
| Mersana Therapeutics (MRSN) is categorized under the Healthcare sector; to help you further research historical shares outstanding numbers, below are some other companies in the same sector:
MRTX Shares Outstanding History MRVI Shares Outstanding History MSON Shares Outstanding History MTCR Shares Outstanding History MTEM Shares Outstanding History MTVA Shares Outstanding History MXCT Shares Outstanding History MYGN Shares Outstanding History MYL Shares Outstanding History MYMD Shares Outstanding History More Healthcare companies » |
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