Type / Class
Equity / Common Stock, par value $0.0001 per share
Shares outstanding
4.99M
Number of holders
56
Total 13F shares, excl. options
18.7M
Shares change
+1.52M
Total reported value, excl. options
$295M
Value change
+$23.7M
Number of buys
41
Number of sells
-12
Price
$15.77

Significant Holders of Mersana Therapeutics, Inc. - Common Stock, par value $0.0001 per share (MRSN) as of Q1 2018

60 filings reported holding MRSN - Mersana Therapeutics, Inc. - Common Stock, par value $0.0001 per share as of Q1 2018.
Mersana Therapeutics, Inc. - Common Stock, par value $0.0001 per share (MRSN) has 56 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 18.7M shares .
Largest 10 shareholders include NEA Management Company, LLC (8.14M shares), WELLINGTON MANAGEMENT GROUP LLP (2.95M shares), Rock Springs Capital Management LP (1.3M shares), ProQuest Associates IV LLC (956K shares), ArrowMark Colorado Holdings LLC (932K shares), BlackRock Inc. (818K shares), RHO CAPITAL PARTNERS INC (796K shares), FIL Ltd (473K shares), VANGUARD GROUP INC (422K shares), and JPMORGAN CHASE & CO (308K shares).
This table shows the top 56 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.