Type / Class
Equity / Common Stock, par value $0.0001 per share
Shares outstanding
4.99M
Number of holders
108
Total 13F shares, excl. options
68.7M
Shares change
-2.42M
Total reported value, excl. options
$648M
Value change
-$40.8M
Put/Call ratio
1.35
Number of buys
53
Number of sells
-64
Price
$9.43

Significant Holders of Mersana Therapeutics, Inc. - Common Stock, par value $0.0001 per share (MRSN) as of Q3 2021

149 filings reported holding MRSN - Mersana Therapeutics, Inc. - Common Stock, par value $0.0001 per share as of Q3 2021.
Mersana Therapeutics, Inc. - Common Stock, par value $0.0001 per share (MRSN) has 108 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 68.7M shares .
Largest 10 shareholders include BlackRock Inc. (8.81M shares), Avoro Capital Advisors LLC (6.8M shares), WELLINGTON MANAGEMENT GROUP LLP (6.01M shares), Sarissa Capital Management LP (4.3M shares), Bellevue Group AG (4.26M shares), STATE STREET CORP (4.09M shares), Bain Capital Life Sciences Investors, LLC (3.7M shares), VANGUARD GROUP INC (3.68M shares), Rock Springs Capital Management LP (3.02M shares), and ORBIMED ADVISORS LLC (2.89M shares).
This table shows the top 108 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
Investor Option Weight % Change % Value $ * Price $ Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.