Type / Class
Equity / Common Stock, par value $0.0001 per share
Shares outstanding
4,992,318
Total 13F shares
68,748,658
Share change
-2,416,787
Total reported value
$648,298,103
Put/Call ratio
135%
Price per share
$9.43
Number of holders
108
Value change
-$40,839,729
Number of buys
53
Number of sells
64

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

As of 30 Sep 2021, Mersana Therapeutics, Inc. - Common Stock, par value $0.0001 per share (MRSN) was held by 108 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 68,748,658 shares. The largest 10 holders included BlackRock Inc., Avoro Capital Advisors LLC, WELLINGTON MANAGEMENT GROUP LLP, Sarissa Capital Management LP, Bellevue Group AG, STATE STREET CORP, Bain Capital Life Sciences Investors, LLC, VANGUARD GROUP INC, Rock Springs Capital Management LP, and ORBIMED ADVISORS LLC. This page lists 108 institutional shareholders reporting positions in this security for the Q3 2021 filing period.
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.