Type / Class
Equity / Common Stock, par value $0.0001 per share
Shares outstanding
4,992,318
Number of holders
45
Total 13F shares, excl. options
15,455,281
Shares change
-238,257
Total reported value, excl. options
$253,897,465
Value change
-$4,017,344
Number of buys
27
Number of sells
-14
Price
$16.43

Significant Holders of Mersana Therapeutics, Inc. - Common Stock, par value $0.0001 per share (MRSN) as of Q4 2017

50 filings reported holding MRSN - Mersana Therapeutics, Inc. - Common Stock, par value $0.0001 per share as of Q4 2017.
Mersana Therapeutics, Inc. - Common Stock, par value $0.0001 per share (MRSN) has 45 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 15,455,281 shares .
Largest 10 shareholders include NEA Management Company, LLC (8,144,267 shares), WELLINGTON MANAGEMENT GROUP LLP (2,418,324 shares), Rock Springs Capital Management LP (1,326,800 shares), ArrowMark Colorado Holdings LLC (899,773 shares), BlackRock Inc. (577,299 shares), FIL Ltd (473,407 shares), JPMORGAN CHASE & CO (333,682 shares), Cormorant Asset Management, LLC (295,548 shares), FMR LLC (266,406 shares), and Vanguard Group Inc (181,337 shares).
This table shows the top 45 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.